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FFmpeg/libavcodec/atrac9tab.h

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lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
/*
* ATRAC9 decoder
* Copyright (c) 2018 Rostislav Pehlivanov <atomnuker@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
lavc/atrac9tab: Add inclusion guards. Fixes fate-source.
2018-07-04 18:54:44 +02:00
#ifndef AVCODEC_ATRAC9TAB_H
#define AVCODEC_ATRAC9TAB_H
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
#include <stdint.h>
avcodec/atrac9tab: add missing header include Fixes make checkheaders Signed-off-by: James Almer <jamrial@gmail.com>
2018-07-04 20:56:23 +02:00
#include "libavutil/channel_layout.h"
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
enum ATRAC9BlockType {
ATRAC9_BLOCK_TYPE_SCE, /* Single channel */
ATRAC9_BLOCK_TYPE_CPE, /* 2 coupled channels */
ATRAC9_BLOCK_TYPE_LFE, /* Single LFE channel */
};
typedef struct ATRAC9BlockConfig {
uint64_t channel_layout;
enum ATRAC9BlockType type[5];
int plane_map[5][2];
int count;
} ATRAC9BlockConfig;
static const ATRAC9BlockConfig at9_block_layout[] = {
{ /* Mono */
avcodec/atrac9tab: use explicit ATRAC9BlockConfig struct initializers Cosmetic change. Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: James Almer <jamrial@gmail.com>
2019-10-22 15:01:13 +02:00
.channel_layout = AV_CH_LAYOUT_MONO,
.type = { ATRAC9_BLOCK_TYPE_SCE, },
.count = 1,
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{ /* Dual Mono */
avcodec/atrac9tab: use explicit ATRAC9BlockConfig struct initializers Cosmetic change. Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: James Almer <jamrial@gmail.com>
2019-10-22 15:01:13 +02:00
.channel_layout = AV_CH_LAYOUT_STEREO,
.type = { ATRAC9_BLOCK_TYPE_SCE,
ATRAC9_BLOCK_TYPE_SCE, },
.plane_map = { { 0 }, { 1 }, },
.count = 2,
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{ /* Stereo */
avcodec/atrac9tab: use explicit ATRAC9BlockConfig struct initializers Cosmetic change. Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: James Almer <jamrial@gmail.com>
2019-10-22 15:01:13 +02:00
.channel_layout = AV_CH_LAYOUT_STEREO,
.type = { ATRAC9_BLOCK_TYPE_CPE, },
.plane_map = { { 0, 1 }, },
.count = 1,
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{ /* 5.1 */
avcodec/atrac9tab: use explicit ATRAC9BlockConfig struct initializers Cosmetic change. Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: James Almer <jamrial@gmail.com>
2019-10-22 15:01:13 +02:00
.channel_layout = AV_CH_LAYOUT_5POINT1,
.type = { ATRAC9_BLOCK_TYPE_CPE,
ATRAC9_BLOCK_TYPE_SCE,
ATRAC9_BLOCK_TYPE_LFE,
ATRAC9_BLOCK_TYPE_CPE, },
.plane_map = { { 0, 1 }, { 2 }, { 3 }, { 4, 5 }, },
.count = 4,
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
avcodec/atrac9tab: use explicit ATRAC9BlockConfig struct initializers Cosmetic change. Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: James Almer <jamrial@gmail.com>
2019-10-22 15:01:13 +02:00
{ /* 7.1 */
.channel_layout = AV_CH_LAYOUT_7POINT1,
.type = { ATRAC9_BLOCK_TYPE_CPE,
ATRAC9_BLOCK_TYPE_SCE,
ATRAC9_BLOCK_TYPE_LFE,
ATRAC9_BLOCK_TYPE_CPE,
ATRAC9_BLOCK_TYPE_CPE, },
.plane_map = { { 0, 1 }, { 2 }, { 3 }, { 4, 5 }, { 6, 7 }, },
.count = 5,
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{ /* Quad */
avcodec/atrac9tab: use explicit ATRAC9BlockConfig struct initializers Cosmetic change. Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: James Almer <jamrial@gmail.com>
2019-10-22 15:01:13 +02:00
.channel_layout = AV_CH_LAYOUT_QUAD,
.type = { ATRAC9_BLOCK_TYPE_CPE,
ATRAC9_BLOCK_TYPE_CPE, },
.plane_map = { { 0, 1 }, { 2, 3 }, },
.count = 2,
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
};
static const uint8_t at9_tab_sri_frame_log2[] = {
6, 6, 7, 7, 7, 8, 8, 8, 6, 6, 7, 7, 7, 8, 8, 8,
};
static const uint8_t at9_tab_band_q_unit_map[] = {
0, 4, 8, 10, 12, 13, 14, 15, 16, 18, 20, 21, 22, 23, 24, 25, 26, 28, 30,
};
static const uint8_t at9_q_unit_to_coeff_cnt[] = {
2, 2, 2, 2, 2, 2, 2, 2, 4, 4, 4, 4, 8, 8, 8,
8, 8, 8, 8, 8, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
};
static const int at9_q_unit_to_coeff_idx[] = {
0, 2, 4, 6, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56, 64,
72, 80, 88, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, 256
};
avcodec/atrac9tab: Add missing static to internal table Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-09 15:59:13 +02:00
static const uint8_t at9_q_unit_to_codebookidx[] = {
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
};
static const uint8_t at9_tab_sri_max_bands[] = {
8, 8, 12, 12, 12, 18, 18, 18, 8, 8, 12, 12, 12, 16, 16, 16,
};
static const int at9_tab_samplerates[] = {
11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 44100, 48000,
64000, 88200, 96000, 128000, 176400, 192000,
};
static const uint8_t at9_tab_band_ext_cnt[][6] = {
{ 0, 0, 0, 4, 4, 2 },
{ 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 2, 2, 1 },
{ 0, 0, 0, 2, 2, 2 },
{ 1, 1, 1, 0, 0, 0 },
};
/* B unit, C unit, Band count */
static const uint8_t at9_tab_band_ext_group[][3] = {
{ 16, 21, 0 },
{ 18, 22, 1 },
{ 20, 22, 2 },
{ 21, 22, 3 },
{ 21, 22, 3 },
{ 23, 24, 4 },
{ 23, 24, 4 },
{ 24, 24, 5 },
};
static const uint8_t at9_tab_band_ext_lengths[][6][4] = {
{
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 5, 4, 3, 3 },
{ 4, 4, 3, 4 },
{ 4, 5, 0, 0 },
},
{
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
},
{
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 6, 6, 0, 0 },
{ 6, 6, 0, 0 },
{ 6, 0, 0, 0 },
},
{
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 4, 4, 0, 0 },
{ 4, 4, 0, 0 },
{ 4, 4, 0, 0 },
},
{
{ 3, 0, 0, 0 },
{ 3, 0, 0, 0 },
{ 3, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
},
};
static const float at9_band_ext_scales_m0[][5][32] = {
{
{
0.000000e+0f, 1.988220e-1f, 2.514343e-1f, 2.960510e-1f,
3.263550e-1f, 3.771362e-1f, 3.786926e-1f, 4.540405e-1f,
4.877625e-1f, 5.262451e-1f, 5.447083e-1f, 5.737000e-1f,
6.212158e-1f, 6.222839e-1f, 6.560974e-1f, 6.896667e-1f,
7.555542e-1f, 7.677917e-1f, 7.918091e-1f, 7.971497e-1f,
8.188171e-1f, 8.446045e-1f, 9.790649e-1f, 9.822083e-1f,
9.846191e-1f, 9.859314e-1f, 9.863586e-1f, 9.863892e-1f,
9.873352e-1f, 9.881287e-1f, 9.898682e-1f, 9.913330e-1f,
}, {
0.000000e+0f, 9.982910e-1f, 7.592773e-2f, 7.179565e-1f,
9.851379e-1f, 5.340271e-1f, 9.013672e-1f, 6.349182e-1f,
7.226257e-1f, 1.948547e-1f, 7.628174e-1f, 9.873657e-1f,
8.112183e-1f, 2.715454e-1f, 9.734192e-1f, 1.443787e-1f,
4.640198e-1f, 3.249207e-1f, 3.790894e-1f, 8.276367e-2f,
5.954590e-1f, 2.864380e-1f, 9.806824e-1f, 7.929077e-1f,
6.292114e-1f, 4.887085e-1f, 2.905273e-1f, 1.301880e-1f,
3.140869e-1f, 5.482483e-1f, 4.210815e-1f, 1.182861e-1f,
}, {
0.000000e+0f, 3.155518e-2f, 8.581543e-2f, 1.364746e-1f,
1.858826e-1f, 2.368469e-1f, 2.888184e-1f, 3.432617e-1f,
4.012451e-1f, 4.623108e-1f, 5.271301e-1f, 5.954895e-1f,
6.681213e-1f, 7.448425e-1f, 8.245239e-1f, 9.097290e-1f,
}, {
0.000000e+0f, 4.418945e-2f, 1.303711e-1f, 2.273560e-1f,
3.395996e-1f, 4.735718e-1f, 6.267090e-1f, 8.003845e-1f,
}, {
0.000000e+0f, 2.804565e-2f, 9.683228e-2f, 1.849976e-1f,
3.005981e-1f, 4.470520e-1f, 6.168518e-1f, 8.007813e-1f,
},
},
{
{
0.000000e+0f, 2.708740e-1f, 3.479614e-1f, 3.578186e-1f,
5.083618e-1f, 5.299072e-1f, 5.819092e-1f, 6.381836e-1f,
7.276917e-1f, 7.595520e-1f, 7.878723e-1f, 9.707336e-1f,
9.713135e-1f, 9.736023e-1f, 9.759827e-1f, 9.832458e-1f,
}, {
0.000000e+0f, 2.330627e-1f, 5.891418e-1f, 7.170410e-1f,
2.036438e-1f, 1.613464e-1f, 6.668701e-1f, 9.481201e-1f,
9.769897e-1f, 5.111694e-1f, 3.522644e-1f, 8.209534e-1f,
2.933960e-1f, 9.757690e-1f, 5.289917e-1f, 4.372253e-1f,
}, {
0.000000e+0f, 4.360962e-2f, 1.056519e-1f, 1.590576e-1f,
2.078857e-1f, 2.572937e-1f, 3.082581e-1f, 3.616028e-1f,
4.191589e-1f, 4.792175e-1f, 5.438538e-1f, 6.125183e-1f,
6.841125e-1f, 7.589417e-1f, 8.365173e-1f, 9.148254e-1f,
}, {
0.000000e+0f, 4.074097e-2f, 1.164551e-1f, 2.077026e-1f,
3.184509e-1f, 4.532166e-1f, 6.124268e-1f, 7.932129e-1f,
}, {
0.000000e+0f, 8.880615e-3f, 2.932739e-2f, 5.593872e-2f,
8.825684e-2f, 1.259155e-1f, 1.721497e-1f, 2.270813e-1f,
2.901611e-1f, 3.579712e-1f, 4.334106e-1f, 5.147095e-1f,
6.023254e-1f, 6.956177e-1f, 7.952881e-1f, 8.977356e-1f,
},
},
{
{
0.000000e+0f, 7.379150e-2f, 1.806335e-1f, 2.687073e-1f,
3.407898e-1f, 4.047546e-1f, 4.621887e-1f, 5.168762e-1f,
5.703125e-1f, 6.237488e-1f, 6.763611e-1f, 7.288208e-1f,
7.808533e-1f, 8.337708e-1f, 8.874512e-1f, 9.418030e-1f,
}, {
0.000000e+0f, 7.980347e-2f, 1.615295e-1f, 1.665649e-1f,
1.822205e-1f, 2.185669e-1f, 2.292175e-1f, 2.456665e-1f,
2.666321e-1f, 3.306580e-1f, 3.330688e-1f, 3.765259e-1f,
4.085083e-1f, 4.400024e-1f, 4.407654e-1f, 4.817505e-1f,
4.924011e-1f, 5.320740e-1f, 5.893860e-1f, 6.131287e-1f,
6.212463e-1f, 6.278076e-1f, 6.308899e-1f, 7.660828e-1f,
7.850647e-1f, 7.910461e-1f, 7.929382e-1f, 8.038330e-1f,
9.834900e-1f, 9.846191e-1f, 9.852295e-1f, 9.862671e-1f,
}, {
0.000000e+0f, 6.084290e-1f, 3.672791e-1f, 3.151855e-1f,
1.488953e-1f, 2.571716e-1f, 5.103455e-1f, 3.311157e-1f,
5.426025e-2f, 4.254456e-1f, 7.998352e-1f, 7.873230e-1f,
5.418701e-1f, 2.925110e-1f, 8.468628e-2f, 1.410522e-1f,
9.819641e-1f, 9.609070e-1f, 3.530884e-2f, 9.729004e-2f,
5.758362e-1f, 9.941711e-1f, 7.215576e-1f, 7.183228e-1f,
2.028809e-1f, 9.588623e-2f, 2.032166e-1f, 1.338806e-1f,
5.003357e-1f, 1.874390e-1f, 9.804993e-1f, 1.107788e-1f,
},
},
};
static const float at9_band_ext_scales_m2[] = {
4.272461e-4f, 1.312256e-3f, 2.441406e-3f, 3.692627e-3f,
4.913330e-3f, 6.134033e-3f, 7.507324e-3f, 8.972168e-3f,
1.049805e-2f, 1.223755e-2f, 1.406860e-2f, 1.599121e-2f,
1.800537e-2f, 2.026367e-2f, 2.264404e-2f, 2.517700e-2f,
2.792358e-2f, 3.073120e-2f, 3.344727e-2f, 3.631592e-2f,
3.952026e-2f, 4.275513e-2f, 4.608154e-2f, 4.968262e-2f,
5.355835e-2f, 5.783081e-2f, 6.195068e-2f, 6.677246e-2f,
7.196045e-2f, 7.745361e-2f, 8.319092e-2f, 8.993530e-2f,
9.759521e-2f, 1.056213e-1f, 1.138916e-1f, 1.236267e-1f,
1.348267e-1f, 1.470337e-1f, 1.603394e-1f, 1.755676e-1f,
1.905823e-1f, 2.071228e-1f, 2.245178e-1f, 2.444153e-1f,
2.658997e-1f, 2.897644e-1f, 3.146057e-1f, 3.450012e-1f,
3.766174e-1f, 4.122620e-1f, 4.505615e-1f, 4.893799e-1f,
5.305481e-1f, 5.731201e-1f, 6.157837e-1f, 6.580811e-1f,
6.985168e-1f, 7.435303e-1f, 7.865906e-1f, 8.302612e-1f,
8.718567e-1f, 9.125671e-1f, 9.575806e-1f, 9.996643e-1f,
};
static const float at9_band_ext_scales_m3[][2] = {
{ 3.491211e-1f, -2.913818e-1f, }, { 5.371094e-1f, -2.541504e-1f, },
{ 6.782227e-1f, -1.664429e-1f, }, { 7.910156e-1f, -1.476440e-1f, },
{ 9.057617e-1f, -1.342163e-1f, }, { 1.024902e+0f, -1.220703e-1f, },
{ 1.156250e+0f, -1.117554e-1f, }, { 1.290527e+0f, -1.026611e-1f, },
{ 1.458984e+0f, -9.436035e-2f, }, { 1.664551e+0f, -8.483887e-2f, },
{ 1.929688e+0f, -7.476807e-2f, }, { 2.278320e+0f, -6.304932e-2f, },
{ 2.831543e+0f, -4.492188e-2f, }, { 3.659180e+0f, -2.447510e-2f, },
{ 5.257813e+0f, +1.831055e-4f, }, { 8.373047e+0f, +4.174805e-2f, },
};
static const float at9_band_ext_scales_m4[] = {
3.610229e-2f, 1.260681e-1f, 2.227478e-1f, 3.338318e-1f,
4.662170e-1f, 6.221313e-1f, 7.989197e-1f, 9.939575e-1f,
};
static const float at9_quant_step_coarse[] = {
2.0000000000000000e+0f, 6.6666666666666663e-1f, 2.8571428571428570e-1f,
1.3333333333333333e-1f, 6.4516129032258063e-2f, 3.1746031746031744e-2f,
1.5748031496062992e-2f, 7.8431372549019607e-3f, 3.9138943248532287e-3f,
1.9550342130987292e-3f, 9.7703957010258913e-4f, 4.8840048840048840e-4f,
2.4417043096081065e-4f, 1.2207776353537203e-4f, 6.1037018951994385e-5f,
3.0518043793392844e-5f,
};
static const float at9_quant_step_fine[] = {
3.0518043793392844e-05f, 1.0172681264464281e-05f, 4.3597205419132631e-06f,
2.0345362528928561e-06f, 9.8445302559331759e-07f, 4.8441339354591809e-07f,
2.4029955742829012e-07f, 1.1967860311134448e-07f, 5.9722199204291275e-08f,
2.9831909866464167e-08f, 1.4908668194134265e-08f, 7.4525137468602791e-09f,
3.7258019525568114e-09f, 1.8627872668859698e-09f, 9.3136520869755679e-10f,
4.6567549848772173e-10f,
};
static const float at9_scalefactor_c[] = {
3.0517578125e-5f, 6.1035156250e-5f, 1.2207031250e-4f, 2.4414062500e-4f,
4.8828125000e-4f, 9.7656250000e-4f, 1.9531250000e-3f, 3.9062500000e-3f,
7.8125000000e-3f, 1.5625000000e-2f, 3.1250000000e-2f, 6.2500000000e-2f,
1.2500000000e-1f, 2.5000000000e-1f, 5.0000000000e-1f, 1.0000000000e+0f,
2.0000000000e+0f, 4.0000000000e+0f, 8.0000000000e+0f, 1.6000000000e+1f,
3.2000000000e+1f, 6.4000000000e+1f, 1.2800000000e+2f, 2.5600000000e+2f,
5.1200000000e+2f, 1.0240000000e+3f, 2.0480000000e+3f, 4.0960000000e+3f,
8.1920000000e+3f, 1.6384000000e+4f, 3.2768000000e+4f, 6.5536000000e+4f,
};
static const uint8_t at9_tab_sf_weights[][32] = {
{
0, 0, 0, 1, 1, 2, 2, 2, 2, 2, 2, 3, 2, 3, 3, 4, 4, 4,
4, 4, 4, 5, 5, 6, 6, 7, 7, 8, 10, 12, 12, 12,
},
{
3, 2, 2, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1,
1, 1, 1, 1, 1, 2, 3, 3, 4, 5, 7, 10, 10, 10,
},
{
0, 2, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 7, 7, 7, 7, 8, 9, 12, 12, 12,
},
{
0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6,
6, 6, 6, 7, 8, 8, 10, 11, 11, 12, 13, 13, 13, 13,
},
{
0, 2, 2, 3, 3, 4, 4, 5, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8,
8, 9, 9, 9, 10, 10, 11, 12, 12, 13, 13, 14, 14, 14,
},
{
1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2,
2, 3, 3, 3, 4, 4, 5, 6, 7, 7, 9, 11, 11, 11,
},
{
0, 5, 8, 10, 11, 11, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 13, 15, 15, 15,
},
{
0, 2, 3, 4, 5, 6, 6, 7, 7, 8, 8, 8, 9, 9, 10, 10, 10, 11,
11, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 15, 15, 15,
},
};
static const uint8_t at9_tab_b_dist[] = {
1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 5, 5, 6, 7, 8,
9, 10, 11, 12, 13, 15, 6, 18, 19, 20, 21, 22, 23, 24, 25, 26, 26, 27,
27, 28, 28, 28, 29, 29, 29, 29, 30, 30, 30, 30,
};
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
static const uint8_t at9_sfb_a_tab[][2] = {
/* Unsigned scalefactor table 1 - 2 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 0, 1 }, { 1, 1 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Unsigned scalefactor table 2 - 4 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 0, 1 }, { 3, 2 }, { 1, 3 }, { 2, 3 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Unsigned scalefactor table 3 - 8 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 0, 2 }, { 1, 2 }, { 7, 2 }, { 6, 3 }, { 2, 4 }, { 5, 5 }, { 3, 6 },
{ 4, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Unsigned scalefactor table 4 - 16 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 2, 4 }, { 14, 4 }, { 11, 8 }, { 10, 8 }, { 9, 8 }, { 6, 8 }, { 7, 8 },
{ 8, 8 }, { 5, 7 }, { 13, 5 }, { 3, 5 }, { 12, 6 }, { 4, 6 }, { 0, 2 },
{ 1, 2 }, { 15, 2 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Unsigned scalefactor table 5 - 32 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 31, 3 }, { 1, 3 }, { 26, 7 }, { 7, 7 }, { 20, 8 }, { 21, 8 }, { 23, 8 },
{ 22, 8 }, { 29, 5 }, { 30, 4 }, { 4, 5 }, { 11, 8 }, { 24, 8 }, { 9, 8 },
{ 10, 8 }, { 6, 6 }, { 25, 7 }, { 19, 8 }, { 12, 8 }, { 27, 6 }, { 18, 8 },
{ 13, 8 }, { 16, 8 }, { 17, 8 }, { 14, 8 }, { 15, 8 }, { 8, 7 }, { 0, 2 },
{ 5, 5 }, { 28, 5 }, { 3, 4 }, { 2, 3 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Unsigned scalefactor table 6 - 64 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 0, 3 }, { 1, 3 }, { 2, 4 }, { 3, 4 }, { 61, 4 }, { 62, 4 }, { 63, 4 },
{ 4, 5 }, { 5, 5 }, { 58, 5 }, { 59, 5 }, { 60, 5 }, { 6, 6 }, { 7, 6 },
{ 8, 6 }, { 56, 6 }, { 57, 6 }, { 9, 7 }, { 10, 7 }, { 53, 7 }, { 54, 7 },
{ 55, 7 }, { 11, 8 }, { 12, 8 }, { 13, 8 }, { 14, 8 }, { 15, 8 }, { 16, 8 },
{ 17, 8 }, { 18, 8 }, { 19, 8 }, { 20, 8 }, { 21, 8 }, { 22, 8 }, { 23, 8 },
{ 24, 8 }, { 25, 8 }, { 26, 8 }, { 27, 8 }, { 28, 8 }, { 29, 8 }, { 30, 8 },
{ 31, 8 }, { 32, 8 }, { 33, 8 }, { 34, 8 }, { 35, 8 }, { 36, 8 }, { 37, 8 },
{ 38, 8 }, { 39, 8 }, { 40, 8 }, { 41, 8 }, { 42, 8 }, { 43, 8 }, { 44, 8 },
{ 45, 8 }, { 46, 8 }, { 47, 8 }, { 48, 8 }, { 49, 8 }, { 50, 8 }, { 51, 8 },
{ 52, 8 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
};
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
static const uint8_t at9_sfb_b_tab[][2] = {
/* Signed scalefactor table 2 - 3 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 16, 1 }, { 15, 2 }, { 17, 2 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Signed scalefactor table 3 - 7 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 17, 3 }, { 18, 5 }, { 13, 6 }, { 19, 6 }, { 14, 4 }, { 15, 2 }, { 16, 1 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Signed scalefactor table 4 - 15 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 15, 3 }, { 17, 3 }, { 18, 4 }, { 13, 6 }, { 12, 6 }, { 21, 7 }, { 22, 8 },
{ 10, 8 }, { 9, 8 }, { 23, 8 }, { 11, 7 }, { 14, 4 }, { 19, 5 }, { 20, 5 },
{ 16, 1 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Signed scalefactor table 5 - 32 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 16, 3 }, { 21, 4 }, { 22, 4 }, { 20, 4 }, { 23, 4 }, { 30, 8 }, { 1, 8 },
{ 0, 8 }, { 2, 8 }, { 3, 8 }, { 31, 8 }, { 27, 7 }, { 14, 6 }, { 28, 7 },
{ 13, 7 }, { 18, 4 }, { 25, 5 }, { 12, 7 }, { 11, 7 }, { 26, 6 }, { 24, 4 },
{ 17, 3 }, { 19, 4 }, { 9, 7 }, { 10, 7 }, { 8, 7 }, { 7, 7 }, { 6, 7 },
{ 5, 7 }, { 29, 7 }, { 4, 7 }, { 15, 3 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
};
typedef struct HuffmanCodebook {
const int size;
const int value_cnt;
const int value_cnt_pow;
const int value_bits;
} HuffmanCodebook;
static const HuffmanCodebook at9_huffman_sf_unsigned[] = {
{ 0 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 2, 1, 0, 1 },
{ 4, 1, 0, 2 },
{ 8, 1, 0, 3 },
{ 16, 1, 0, 4 },
{ 32, 1, 0, 5 },
{ 64, 1, 0, 6 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
};
static const HuffmanCodebook at9_huffman_sf_signed[] = {
{ 0 },
{ 0 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 3, 1, 0, 2 },
{ 7, 1, 0, 3 },
{ 15, 1, 0, 4 },
{ 32, 1, 0, 5 },
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
};
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
static const uint8_t at9_coeffs_tab[][2] = {
/* Coefficient table A.2.1 - 8 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 1, 3 }, { 3, 3 }, { 12, 3 }, { 4, 3 }, { 7, 3 },
{ 13, 3 }, { 15, 3 }, { 5, 3 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.2.2 - 80 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 17, 6 }, { 51, 6 }, { 81, 7 }, { 243, 7 }, { 69, 7 },
{ 207, 7 }, { 205, 7 }, { 71, 7 }, { 209, 7 }, { 115, 7 },
{ 245, 7 }, { 95, 7 }, { 125, 7 }, { 215, 7 }, { 1, 4 },
{ 3, 4 }, { 116, 7 }, { 220, 7 }, { 84, 7 }, { 252, 7 },
{ 29, 7 }, { 55, 7 }, { 21, 7 }, { 63, 7 }, { 65, 6 },
{ 195, 6 }, { 193, 6 }, { 67, 6 }, { 20, 6 }, { 60, 6 },
{ 52, 6 }, { 28, 6 }, { 16, 5 }, { 48, 5 }, { 4, 5 },
{ 12, 5 }, { 221, 8 }, { 119, 8 }, { 117, 8 }, { 223, 8 },
{ 213, 8 }, { 127, 8 }, { 253, 8 }, { 87, 8 }, { 80, 6 },
{ 240, 6 }, { 93, 8 }, { 247, 8 }, { 85, 8 }, { 255, 8 },
{ 113, 7 }, { 211, 7 }, { 208, 6 }, { 112, 6 }, { 64, 5 },
{ 192, 5 }, { 212, 7 }, { 124, 7 }, { 241, 7 }, { 83, 7 },
{ 77, 7 }, { 199, 7 }, { 244, 7 }, { 92, 7 }, { 196, 6 },
{ 76, 6 }, { 53, 7 }, { 31, 7 }, { 197, 7 }, { 79, 7 },
{ 49, 6 }, { 19, 6 }, { 61, 7 }, { 23, 7 }, { 68, 7 },
{ 204, 7 }, { 5, 6 }, { 15, 6 }, { 13, 6 }, { 7, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.2.3 - 81 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 65, 6 }, { 195, 6 }, { 193, 6 }, { 67, 6 }, { 197, 7 },
{ 79, 7 }, { 77, 7 }, { 199, 7 }, { 241, 7 }, { 83, 7 },
{ 244, 7 }, { 92, 7 }, { 1, 4 }, { 3, 4 }, { 20, 6 },
{ 60, 6 }, { 212, 7 }, { 124, 7 }, { 61, 7 }, { 23, 7 },
{ 52, 6 }, { 28, 6 }, { 53, 7 }, { 31, 7 }, { 245, 8 },
{ 95, 8 }, { 125, 8 }, { 215, 8 }, { 80, 6 }, { 240, 6 },
{ 208, 6 }, { 112, 6 }, { 205, 8 }, { 71, 8 }, { 81, 8 },
{ 243, 8 }, { 69, 8 }, { 207, 8 }, { 209, 8 }, { 115, 8 },
{ 5, 6 }, { 15, 6 }, { 13, 6 }, { 7, 6 }, { 196, 6 },
{ 76, 6 }, { 221, 9 }, { 119, 9 }, { 253, 9 }, { 87, 9 },
{ 116, 8 }, { 220, 8 }, { 68, 7 }, { 204, 7 }, { 49, 6 },
{ 19, 6 }, { 117, 9 }, { 223, 9 }, { 213, 9 }, { 127, 9 },
{ 84, 8 }, { 252, 8 }, { 29, 8 }, { 55, 8 }, { 21, 8 },
{ 63, 8 }, { 17, 7 }, { 51, 7 }, { 93, 9 }, { 247, 9 },
{ 85, 9 }, { 255, 9 }, { 113, 8 }, { 211, 8 }, { 4, 5 },
{ 12, 5 }, { 0, 3 }, { 16, 5 }, { 48, 5 }, { 64, 5 },
{ 192, 5 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.2.4 - 81 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 20, 6 }, { 60, 6 }, { 52, 6 }, { 28, 6 }, { 80, 6 },
{ 240, 6 }, { 208, 6 }, { 112, 6 }, { 1, 4 }, { 3, 4 },
{ 5, 6 }, { 15, 6 }, { 13, 6 }, { 7, 6 }, { 84, 8 },
{ 252, 8 }, { 29, 8 }, { 55, 8 }, { 68, 7 }, { 204, 7 },
{ 196, 6 }, { 76, 6 }, { 17, 7 }, { 51, 7 }, { 21, 8 },
{ 63, 8 }, { 113, 8 }, { 211, 8 }, { 49, 6 }, { 19, 6 },
{ 245, 9 }, { 95, 9 }, { 125, 9 }, { 215, 9 }, { 244, 8 },
{ 92, 8 }, { 212, 8 }, { 124, 8 }, { 241, 8 }, { 83, 8 },
{ 77, 8 }, { 199, 8 }, { 197, 8 }, { 79, 8 }, { 53, 8 },
{ 31, 8 }, { 253, 10 }, { 87, 10 }, { 213, 10 }, { 127, 10 },
{ 81, 9 }, { 243, 9 }, { 0, 2 }, { 61, 8 }, { 23, 8 },
{ 117, 10 }, { 223, 10 }, { 221, 10 }, { 119, 10 }, { 209, 9 },
{ 115, 9 }, { 65, 7 }, { 195, 7 }, { 193, 7 }, { 67, 7 },
{ 69, 9 }, { 207, 9 }, { 205, 9 }, { 71, 9 }, { 93, 10 },
{ 247, 10 }, { 85, 10 }, { 255, 10 }, { 116, 9 }, { 220, 9 },
{ 16, 5 }, { 48, 5 }, { 64, 5 }, { 192, 5 }, { 4, 5 },
{ 12, 5 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.3.1 - 40 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 50, 5 }, { 22, 5 }, { 11, 5 }, { 61, 5 }, { 2, 4 },
{ 6, 4 }, { 59, 5 }, { 13, 5 }, { 17, 5 }, { 55, 5 },
{ 49, 5 }, { 23, 5 }, { 24, 5 }, { 40, 5 }, { 26, 6 },
{ 46, 6 }, { 42, 6 }, { 30, 6 }, { 10, 5 }, { 62, 5 },
{ 58, 5 }, { 14, 5 }, { 19, 6 }, { 53, 6 }, { 51, 6 },
{ 21, 6 }, { 3, 5 }, { 5, 5 }, { 16, 5 }, { 48, 5 },
{ 25, 6 }, { 47, 6 }, { 41, 6 }, { 31, 6 }, { 27, 7 },
{ 45, 7 }, { 43, 7 }, { 29, 7 }, { 18, 6 }, { 54, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.3.2 - 49 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 57, 5 }, { 15, 5 }, { 17, 5 }, { 55, 5 }, { 49, 5 },
{ 23, 5 }, { 58, 5 }, { 14, 5 }, { 10, 5 }, { 62, 5 },
{ 43, 7 }, { 29, 7 }, { 27, 7 }, { 45, 7 }, { 25, 6 },
{ 47, 6 }, { 41, 6 }, { 31, 6 }, { 59, 6 }, { 13, 6 },
{ 11, 6 }, { 61, 6 }, { 50, 6 }, { 22, 6 }, { 16, 5 },
{ 48, 5 }, { 8, 5 }, { 56, 5 }, { 18, 6 }, { 54, 6 },
{ 24, 6 }, { 40, 6 }, { 2, 5 }, { 6, 5 }, { 1, 5 },
{ 7, 5 }, { 0, 4 }, { 42, 7 }, { 30, 7 }, { 26, 7 },
{ 46, 7 }, { 3, 6 }, { 5, 6 }, { 19, 7 }, { 53, 7 },
{ 51, 7 }, { 21, 7 }, { 9, 6 }, { 63, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.3.3 - 49 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 51, 7 }, { 21, 7 }, { 19, 7 }, { 53, 7 }, { 24, 6 },
{ 40, 6 }, { 50, 6 }, { 22, 6 }, { 18, 6 }, { 54, 6 },
{ 3, 6 }, { 5, 6 }, { 43, 8 }, { 29, 8 }, { 27, 8 },
{ 45, 8 }, { 25, 7 }, { 47, 7 }, { 16, 5 }, { 48, 5 },
{ 8, 4 }, { 56, 4 }, { 1, 4 }, { 7, 4 }, { 2, 5 },
{ 6, 5 }, { 9, 5 }, { 63, 5 }, { 0, 3 }, { 57, 5 },
{ 15, 5 }, { 41, 7 }, { 31, 7 }, { 11, 7 }, { 61, 7 },
{ 59, 7 }, { 13, 7 }, { 26, 8 }, { 46, 8 }, { 42, 8 },
{ 30, 8 }, { 49, 6 }, { 23, 6 }, { 17, 6 }, { 55, 6 },
{ 58, 6 }, { 14, 6 }, { 10, 6 }, { 62, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.3.4 - 49 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 0, 2 }, { 16, 5 }, { 48, 5 }, { 2, 5 }, { 6, 5 },
{ 26, 8 }, { 46, 8 }, { 51, 8 }, { 21, 8 }, { 24, 7 },
{ 40, 7 }, { 3, 7 }, { 5, 7 }, { 19, 8 }, { 53, 8 },
{ 25, 8 }, { 47, 8 }, { 50, 7 }, { 22, 7 }, { 18, 7 },
{ 54, 7 }, { 17, 6 }, { 55, 6 }, { 8, 4 }, { 56, 4 },
{ 1, 4 }, { 7, 4 }, { 49, 6 }, { 23, 6 }, { 10, 6 },
{ 62, 6 }, { 58, 6 }, { 14, 6 }, { 41, 8 }, { 31, 8 },
{ 11, 8 }, { 61, 8 }, { 59, 8 }, { 13, 8 }, { 43, 10 },
{ 29, 10 }, { 27, 10 }, { 45, 10 }, { 42, 9 }, { 30, 9 },
{ 9, 5 }, { 63, 5 }, { 57, 5 }, { 15, 5 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.4.1 - 176 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 83, 7 }, { 189, 7 }, { 68, 7 }, { 204, 7 }, { 23, 7 },
{ 249, 7 }, { 166, 8 }, { 106, 8 }, { 183, 8 }, { 89, 8 },
{ 52, 7 }, { 220, 7 }, { 161, 7 }, { 111, 7 }, { 179, 7 },
{ 93, 7 }, { 196, 7 }, { 76, 7 }, { 38, 7 }, { 234, 7 },
{ 116, 8 }, { 156, 8 }, { 148, 8 }, { 124, 8 }, { 97, 7 },
{ 175, 7 }, { 247, 7 }, { 25, 7 }, { 53, 7 }, { 219, 7 },
{ 212, 7 }, { 60, 7 }, { 5, 6 }, { 11, 6 }, { 101, 8 },
{ 171, 8 }, { 165, 8 }, { 107, 8 }, { 230, 7 }, { 42, 7 },
{ 244, 6 }, { 28, 6 }, { 7, 7 }, { 9, 7 }, { 213, 7 },
{ 59, 7 }, { 86, 8 }, { 186, 8 }, { 115, 8 }, { 157, 8 },
{ 71, 8 }, { 201, 8 }, { 182, 8 }, { 90, 8 }, { 4, 6 },
{ 12, 6 }, { 147, 8 }, { 125, 8 }, { 199, 8 }, { 73, 8 },
{ 82, 7 }, { 190, 7 }, { 66, 7 }, { 206, 7 }, { 178, 7 },
{ 94, 7 }, { 194, 7 }, { 78, 7 }, { 22, 7 }, { 250, 7 },
{ 96, 7 }, { 160, 7 }, { 100, 8 }, { 172, 8 }, { 164, 8 },
{ 108, 8 }, { 246, 7 }, { 26, 7 }, { 85, 8 }, { 187, 8 },
{ 114, 8 }, { 158, 8 }, { 37, 7 }, { 235, 7 }, { 36, 7 },
{ 236, 7 }, { 146, 8 }, { 126, 8 }, { 70, 8 }, { 202, 8 },
{ 215, 8 }, { 57, 8 }, { 55, 8 }, { 217, 8 }, { 181, 8 },
{ 91, 8 }, { 198, 8 }, { 74, 8 }, { 228, 7 }, { 44, 7 },
{ 229, 7 }, { 43, 7 }, { 81, 7 }, { 191, 7 }, { 177, 7 },
{ 95, 7 }, { 119, 9 }, { 153, 9 }, { 151, 9 }, { 121, 9 },
{ 99, 8 }, { 173, 8 }, { 65, 7 }, { 207, 7 }, { 6, 7 },
{ 10, 7 }, { 193, 7 }, { 79, 7 }, { 113, 8 }, { 159, 8 },
{ 163, 8 }, { 109, 8 }, { 145, 8 }, { 127, 8 }, { 118, 9 },
{ 154, 9 }, { 103, 9 }, { 169, 9 }, { 84, 8 }, { 188, 8 },
{ 39, 8 }, { 233, 8 }, { 167, 9 }, { 105, 9 }, { 150, 9 },
{ 122, 9 }, { 69, 8 }, { 203, 8 }, { 180, 8 }, { 92, 8 },
{ 54, 8 }, { 218, 8 }, { 197, 8 }, { 75, 8 }, { 98, 8 },
{ 174, 8 }, { 21, 7 }, { 251, 7 }, { 231, 8 }, { 41, 8 },
{ 162, 8 }, { 110, 8 }, { 214, 8 }, { 58, 8 }, { 117, 9 },
{ 155, 9 }, { 149, 9 }, { 123, 9 }, { 80, 7 }, { 176, 7 },
{ 20, 7 }, { 252, 7 }, { 102, 9 }, { 170, 9 }, { 87, 9 },
{ 185, 9 }, { 112, 8 }, { 144, 8 }, { 245, 7 }, { 27, 7 },
{ 64, 7 }, { 192, 7 }, { 67, 8 }, { 205, 8 }, { 195, 8 },
{ 77, 8 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.4.2 - 225 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 3, 7 }, { 13, 7 }, { 113, 8 }, { 159, 8 }, { 163, 8 },
{ 109, 8 }, { 16, 6 }, { 240, 6 }, { 81, 7 }, { 191, 7 },
{ 177, 7 }, { 95, 7 }, { 0, 5 }, { 112, 8 }, { 144, 8 },
{ 99, 8 }, { 173, 8 }, { 149, 9 }, { 123, 9 }, { 166, 9 },
{ 106, 9 }, { 54, 8 }, { 218, 8 }, { 66, 7 }, { 206, 7 },
{ 23, 8 }, { 249, 8 }, { 214, 8 }, { 58, 8 }, { 194, 7 },
{ 78, 7 }, { 117, 9 }, { 155, 9 }, { 87, 9 }, { 185, 9 },
{ 247, 8 }, { 25, 8 }, { 21, 7 }, { 251, 7 }, { 211, 8 },
{ 61, 8 }, { 51, 8 }, { 221, 8 }, { 36, 7 }, { 236, 7 },
{ 228, 7 }, { 44, 7 }, { 183, 9 }, { 89, 9 }, { 102, 9 },
{ 170, 9 }, { 180, 8 }, { 92, 8 }, { 80, 7 }, { 176, 7 },
{ 245, 7 }, { 27, 7 }, { 69, 8 }, { 203, 8 }, { 84, 8 },
{ 188, 8 }, { 225, 7 }, { 47, 7 }, { 33, 7 }, { 239, 7 },
{ 1, 6 }, { 15, 6 }, { 197, 8 }, { 75, 8 }, { 98, 8 },
{ 174, 8 }, { 18, 7 }, { 254, 7 }, { 162, 8 }, { 110, 8 },
{ 116, 9 }, { 156, 9 }, { 148, 9 }, { 124, 9 }, { 242, 7 },
{ 30, 7 }, { 5, 7 }, { 11, 7 }, { 7, 8 }, { 9, 8 },
{ 230, 8 }, { 42, 8 }, { 65, 7 }, { 207, 7 }, { 71, 9 },
{ 201, 9 }, { 199, 9 }, { 73, 9 }, { 38, 8 }, { 234, 8 },
{ 32, 7 }, { 224, 7 }, { 193, 7 }, { 79, 7 }, { 165, 9 },
{ 107, 9 }, { 182, 9 }, { 90, 9 }, { 35, 8 }, { 237, 8 },
{ 244, 7 }, { 28, 7 }, { 20, 7 }, { 252, 7 }, { 50, 8 },
{ 222, 8 }, { 97, 8 }, { 175, 8 }, { 101, 9 }, { 171, 9 },
{ 86, 9 }, { 186, 9 }, { 83, 8 }, { 189, 8 }, { 161, 8 },
{ 111, 8 }, { 179, 8 }, { 93, 8 }, { 64, 7 }, { 192, 7 },
{ 227, 8 }, { 45, 8 }, { 210, 8 }, { 62, 8 }, { 2, 7 },
{ 14, 7 }, { 213, 8 }, { 59, 8 }, { 53, 8 }, { 219, 8 },
{ 196, 8 }, { 76, 8 }, { 115, 9 }, { 157, 9 }, { 151, 10 },
{ 121, 10 }, { 119, 10 }, { 153, 10 }, { 68, 8 }, { 204, 8 },
{ 22, 8 }, { 250, 8 }, { 96, 8 }, { 160, 8 }, { 147, 9 },
{ 125, 9 }, { 55, 9 }, { 217, 9 }, { 246, 8 }, { 26, 8 },
{ 215, 9 }, { 57, 9 }, { 164, 9 }, { 108, 9 }, { 17, 7 },
{ 255, 7 }, { 4, 7 }, { 12, 7 }, { 241, 7 }, { 31, 7 },
{ 114, 9 }, { 158, 9 }, { 100, 9 }, { 172, 9 }, { 6, 8 },
{ 10, 8 }, { 209, 8 }, { 63, 8 }, { 19, 8 }, { 253, 8 },
{ 49, 8 }, { 223, 8 }, { 195, 8 }, { 77, 8 }, { 212, 8 },
{ 60, 8 }, { 198, 9 }, { 74, 9 }, { 70, 9 }, { 202, 9 },
{ 82, 8 }, { 190, 8 }, { 243, 8 }, { 29, 8 }, { 146, 9 },
{ 126, 9 }, { 118, 10 }, { 154, 10 }, { 167, 10 }, { 105, 10 },
{ 178, 8 }, { 94, 8 }, { 67, 8 }, { 205, 8 }, { 85, 9 },
{ 187, 9 }, { 181, 9 }, { 91, 9 }, { 52, 8 }, { 220, 8 },
{ 150, 10 }, { 122, 10 }, { 103, 10 }, { 169, 10 }, { 231, 9 },
{ 41, 9 }, { 229, 8 }, { 43, 8 }, { 48, 8 }, { 208, 8 },
{ 37, 8 }, { 235, 8 }, { 34, 8 }, { 238, 8 }, { 226, 8 },
{ 46, 8 }, { 39, 9 }, { 233, 9 }, { 145, 9 }, { 127, 9 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.4.3 - 225 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 246, 8 }, { 26, 8 }, { 22, 8 }, { 250, 8 }, { 210, 7 },
{ 62, 7 }, { 50, 7 }, { 222, 7 }, { 53, 8 }, { 219, 8 },
{ 231, 9 }, { 41, 9 }, { 39, 9 }, { 233, 9 }, { 16, 5 },
{ 240, 5 }, { 0, 4 }, { 227, 7 }, { 45, 7 }, { 35, 7 },
{ 237, 7 }, { 196, 8 }, { 76, 8 }, { 151, 10 }, { 121, 10 },
{ 119, 10 }, { 153, 10 }, { 150, 10 }, { 122, 10 }, { 167, 10 },
{ 105, 10 }, { 118, 10 }, { 154, 10 }, { 103, 10 }, { 169, 10 },
{ 117, 10 }, { 155, 10 }, { 149, 10 }, { 123, 10 }, { 96, 8 },
{ 160, 8 }, { 166, 10 }, { 106, 10 }, { 183, 10 }, { 89, 10 },
{ 87, 10 }, { 185, 10 }, { 102, 10 }, { 170, 10 }, { 71, 10 },
{ 201, 10 }, { 116, 10 }, { 156, 10 }, { 148, 10 }, { 124, 10 },
{ 199, 10 }, { 73, 10 }, { 182, 10 }, { 90, 10 }, { 165, 10 },
{ 107, 10 }, { 181, 9 }, { 91, 9 }, { 68, 8 }, { 204, 8 },
{ 85, 9 }, { 187, 9 }, { 113, 9 }, { 159, 9 }, { 6, 8 },
{ 10, 8 }, { 65, 7 }, { 207, 7 }, { 32, 6 }, { 224, 6 },
{ 2, 6 }, { 14, 6 }, { 193, 7 }, { 79, 7 }, { 145, 9 },
{ 127, 9 }, { 163, 9 }, { 109, 9 }, { 99, 9 }, { 173, 9 },
{ 247, 9 }, { 25, 9 }, { 20, 7 }, { 252, 7 }, { 244, 7 },
{ 28, 7 }, { 178, 8 }, { 94, 8 }, { 82, 8 }, { 190, 8 },
{ 23, 9 }, { 249, 9 }, { 54, 9 }, { 218, 9 }, { 214, 9 },
{ 58, 9 }, { 112, 9 }, { 144, 9 }, { 49, 7 }, { 223, 7 },
{ 209, 7 }, { 63, 7 }, { 37, 8 }, { 235, 8 }, { 229, 8 },
{ 43, 8 }, { 19, 7 }, { 253, 7 }, { 243, 7 }, { 29, 7 },
{ 64, 7 }, { 192, 7 }, { 195, 8 }, { 77, 8 }, { 67, 8 },
{ 205, 8 }, { 212, 8 }, { 60, 8 }, { 52, 8 }, { 220, 8 },
{ 7, 9 }, { 9, 9 }, { 180, 9 }, { 92, 9 }, { 197, 9 },
{ 75, 9 }, { 84, 9 }, { 188, 9 }, { 4, 7 }, { 12, 7 },
{ 48, 7 }, { 208, 7 }, { 34, 7 }, { 238, 7 }, { 226, 7 },
{ 46, 7 }, { 101, 10 }, { 171, 10 }, { 86, 10 }, { 186, 10 },
{ 69, 9 }, { 203, 9 }, { 211, 8 }, { 61, 8 }, { 17, 6 },
{ 255, 6 }, { 241, 6 }, { 31, 6 }, { 3, 7 }, { 13, 7 },
{ 51, 8 }, { 221, 8 }, { 98, 9 }, { 174, 9 }, { 162, 9 },
{ 110, 9 }, { 177, 8 }, { 95, 8 }, { 81, 8 }, { 191, 8 },
{ 38, 9 }, { 234, 9 }, { 230, 9 }, { 42, 9 }, { 21, 8 },
{ 251, 8 }, { 245, 8 }, { 27, 8 }, { 115, 10 }, { 157, 10 },
{ 55, 10 }, { 217, 10 }, { 147, 10 }, { 125, 10 }, { 215, 10 },
{ 57, 10 }, { 80, 8 }, { 176, 8 }, { 66, 8 }, { 206, 8 },
{ 194, 8 }, { 78, 8 }, { 97, 9 }, { 175, 9 }, { 161, 9 },
{ 111, 9 }, { 5, 8 }, { 11, 8 }, { 228, 8 }, { 44, 8 },
{ 36, 8 }, { 236, 8 }, { 114, 10 }, { 158, 10 }, { 100, 10 },
{ 172, 10 }, { 83, 9 }, { 189, 9 }, { 33, 7 }, { 239, 7 },
{ 164, 10 }, { 108, 10 }, { 198, 10 }, { 74, 10 }, { 179, 9 },
{ 93, 9 }, { 70, 10 }, { 202, 10 }, { 146, 10 }, { 126, 10 },
{ 213, 9 }, { 59, 9 }, { 18, 7 }, { 254, 7 }, { 225, 7 },
{ 47, 7 }, { 242, 7 }, { 30, 7 }, { 1, 6 }, { 15, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.4.4 - 225 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 193, 7 }, { 79, 7 }, { 20, 7 }, { 252, 7 }, { 151, 10 },
{ 121, 10 }, { 119, 10 }, { 153, 10 }, { 118, 10 }, { 154, 10 },
{ 150, 10 }, { 122, 10 }, { 167, 10 }, { 105, 10 }, { 103, 10 },
{ 169, 10 }, { 117, 10 }, { 155, 10 }, { 149, 10 }, { 123, 10 },
{ 244, 7 }, { 28, 7 }, { 87, 10 }, { 185, 10 }, { 183, 10 },
{ 89, 10 }, { 166, 10 }, { 106, 10 }, { 102, 10 }, { 170, 10 },
{ 71, 10 }, { 201, 10 }, { 148, 10 }, { 124, 10 }, { 199, 10 },
{ 73, 10 }, { 116, 10 }, { 156, 10 }, { 165, 10 }, { 107, 10 },
{ 182, 10 }, { 90, 10 }, { 86, 10 }, { 186, 10 }, { 115, 10 },
{ 157, 10 }, { 101, 10 }, { 171, 10 }, { 147, 10 }, { 125, 10 },
{ 55, 10 }, { 217, 10 }, { 215, 10 }, { 57, 10 }, { 114, 10 },
{ 158, 10 }, { 146, 10 }, { 126, 10 }, { 164, 10 }, { 108, 10 },
{ 39, 10 }, { 233, 10 }, { 100, 10 }, { 172, 10 }, { 231, 10 },
{ 41, 10 }, { 198, 10 }, { 74, 10 }, { 70, 10 }, { 202, 10 },
{ 145, 10 }, { 127, 10 }, { 181, 10 }, { 91, 10 }, { 85, 10 },
{ 187, 10 }, { 113, 10 }, { 159, 10 }, { 247, 10 }, { 25, 10 },
{ 112, 10 }, { 144, 10 }, { 23, 10 }, { 249, 10 }, { 7, 10 },
{ 9, 10 }, { 99, 10 }, { 173, 10 }, { 54, 10 }, { 218, 10 },
{ 163, 10 }, { 109, 10 }, { 214, 10 }, { 58, 10 }, { 197, 10 },
{ 75, 10 }, { 84, 10 }, { 188, 10 }, { 98, 10 }, { 174, 10 },
{ 69, 10 }, { 203, 10 }, { 67, 8 }, { 205, 8 }, { 180, 10 },
{ 92, 10 }, { 162, 10 }, { 110, 10 }, { 97, 9 }, { 175, 9 },
{ 81, 8 }, { 191, 8 }, { 177, 8 }, { 95, 8 }, { 210, 7 },
{ 62, 7 }, { 212, 8 }, { 60, 8 }, { 195, 8 }, { 77, 8 },
{ 35, 7 }, { 237, 7 }, { 64, 7 }, { 192, 7 }, { 50, 7 },
{ 222, 7 }, { 227, 7 }, { 45, 7 }, { 52, 8 }, { 220, 8 },
{ 21, 8 }, { 251, 8 }, { 4, 7 }, { 12, 7 }, { 245, 8 },
{ 27, 8 }, { 161, 9 }, { 111, 9 }, { 22, 9 }, { 250, 9 },
{ 225, 6 }, { 47, 6 }, { 33, 6 }, { 239, 6 }, { 18, 6 },
{ 254, 6 }, { 242, 6 }, { 30, 6 }, { 80, 8 }, { 176, 8 },
{ 246, 9 }, { 26, 9 }, { 96, 9 }, { 160, 9 }, { 5, 8 },
{ 11, 8 }, { 6, 9 }, { 10, 9 }, { 179, 9 }, { 93, 9 },
{ 83, 9 }, { 189, 9 }, { 53, 9 }, { 219, 9 }, { 213, 9 },
{ 59, 9 }, { 196, 9 }, { 76, 9 }, { 49, 7 }, { 223, 7 },
{ 16, 5 }, { 240, 5 }, { 1, 5 }, { 15, 5 }, { 0, 4 },
{ 209, 7 }, { 63, 7 }, { 19, 7 }, { 253, 7 }, { 32, 6 },
{ 224, 6 }, { 2, 6 }, { 14, 6 }, { 243, 7 }, { 29, 7 },
{ 51, 8 }, { 221, 8 }, { 211, 8 }, { 61, 8 }, { 66, 8 },
{ 206, 8 }, { 194, 8 }, { 78, 8 }, { 228, 8 }, { 44, 8 },
{ 36, 8 }, { 236, 8 }, { 48, 7 }, { 208, 7 }, { 3, 7 },
{ 13, 7 }, { 68, 9 }, { 204, 9 }, { 82, 9 }, { 190, 9 },
{ 178, 9 }, { 94, 9 }, { 37, 9 }, { 235, 9 }, { 34, 7 },
{ 238, 7 }, { 226, 7 }, { 46, 7 }, { 229, 9 }, { 43, 9 },
{ 38, 10 }, { 234, 10 }, { 230, 10 }, { 42, 10 }, { 65, 8 },
{ 207, 8 }, { 17, 6 }, { 255, 6 }, { 241, 6 }, { 31, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.5.1 - 31 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 8, 4 }, { 24, 4 }, { 15, 5 }, { 17, 5 }, { 4, 5 },
{ 28, 5 }, { 9, 4 }, { 23, 4 }, { 14, 5 }, { 18, 5 },
{ 3, 5 }, { 29, 5 }, { 13, 5 }, { 19, 5 }, { 2, 5 },
{ 30, 5 }, { 12, 5 }, { 20, 5 }, { 1, 5 }, { 31, 5 },
{ 7, 6 }, { 25, 6 }, { 0, 5 }, { 11, 5 }, { 21, 5 },
{ 6, 6 }, { 26, 6 }, { 5, 6 }, { 27, 6 }, { 10, 5 },
{ 22, 5 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.5.2 - 31 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 2, 4 }, { 30, 4 }, { 11, 5 }, { 21, 5 }, { 7, 5 },
{ 25, 5 }, { 1, 4 }, { 31, 4 }, { 6, 5 }, { 26, 5 },
{ 10, 5 }, { 22, 5 }, { 15, 6 }, { 17, 6 }, { 14, 6 },
{ 18, 6 }, { 0, 4 }, { 5, 5 }, { 27, 5 }, { 9, 5 },
{ 23, 5 }, { 8, 5 }, { 24, 5 }, { 4, 5 }, { 28, 5 },
{ 13, 6 }, { 19, 6 }, { 12, 6 }, { 20, 6 }, { 3, 5 },
{ 29, 5 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.5.3 - 31 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 0, 3 }, { 9, 5 }, { 23, 5 }, { 7, 5 }, { 25, 5 },
{ 3, 4 }, { 29, 4 }, { 8, 5 }, { 24, 5 }, { 15, 7 },
{ 17, 7 }, { 14, 7 }, { 18, 7 }, { 11, 6 }, { 21, 6 },
{ 2, 4 }, { 30, 4 }, { 6, 5 }, { 26, 5 }, { 5, 5 },
{ 27, 5 }, { 1, 4 }, { 31, 4 }, { 10, 6 }, { 22, 6 },
{ 13, 7 }, { 19, 7 }, { 12, 7 }, { 20, 7 }, { 4, 5 },
{ 28, 5 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.5.4 - 31 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 8, 5 }, { 24, 5 }, { 7, 5 }, { 25, 5 }, { 4, 4 },
{ 28, 4 }, { 0, 3 }, { 10, 6 }, { 22, 6 }, { 13, 7 },
{ 19, 7 }, { 12, 7 }, { 20, 7 }, { 6, 5 }, { 26, 5 },
{ 3, 4 }, { 29, 4 }, { 2, 4 }, { 30, 4 }, { 9, 6 },
{ 23, 6 }, { 15, 8 }, { 17, 8 }, { 14, 8 }, { 18, 8 },
{ 11, 7 }, { 21, 7 }, { 5, 5 }, { 27, 5 }, { 1, 4 },
{ 31, 4 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.6.1 - 63 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 19, 5 }, { 45, 5 }, { 31, 6 }, { 33, 6 }, { 30, 6 },
{ 34, 6 }, { 16, 5 }, { 48, 5 }, { 8, 6 }, { 56, 6 },
{ 7, 6 }, { 57, 6 }, { 18, 5 }, { 46, 5 }, { 29, 6 },
{ 35, 6 }, { 28, 6 }, { 36, 6 }, { 6, 6 }, { 58, 6 },
{ 27, 6 }, { 37, 6 }, { 17, 5 }, { 47, 5 }, { 5, 6 },
{ 59, 6 }, { 26, 6 }, { 38, 6 }, { 4, 6 }, { 60, 6 },
{ 25, 6 }, { 39, 6 }, { 3, 6 }, { 61, 6 }, { 2, 6 },
{ 62, 6 }, { 24, 6 }, { 40, 6 }, { 15, 7 }, { 49, 7 },
{ 14, 7 }, { 50, 7 }, { 1, 6 }, { 63, 6 }, { 23, 6 },
{ 41, 6 }, { 13, 7 }, { 51, 7 }, { 0, 6 }, { 22, 6 },
{ 42, 6 }, { 12, 7 }, { 52, 7 }, { 11, 7 }, { 53, 7 },
{ 21, 6 }, { 43, 6 }, { 20, 6 }, { 44, 6 }, { 10, 7 },
{ 54, 7 }, { 9, 7 }, { 55, 7 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.6.2 - 63 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 23, 6 }, { 41, 6 }, { 15, 6 }, { 49, 6 }, { 4, 5 },
{ 60, 5 }, { 3, 5 }, { 61, 5 }, { 22, 6 }, { 42, 6 },
{ 14, 6 }, { 50, 6 }, { 2, 5 }, { 62, 5 }, { 31, 7 },
{ 33, 7 }, { 30, 7 }, { 34, 7 }, { 21, 6 }, { 43, 6 },
{ 13, 6 }, { 51, 6 }, { 12, 6 }, { 52, 6 }, { 1, 5 },
{ 63, 5 }, { 20, 6 }, { 44, 6 }, { 29, 7 }, { 35, 7 },
{ 28, 7 }, { 36, 7 }, { 11, 6 }, { 53, 6 }, { 19, 6 },
{ 45, 6 }, { 0, 5 }, { 10, 6 }, { 54, 6 }, { 18, 6 },
{ 46, 6 }, { 27, 7 }, { 37, 7 }, { 26, 7 }, { 38, 7 },
{ 9, 6 }, { 55, 6 }, { 16, 6 }, { 48, 6 }, { 8, 6 },
{ 56, 6 }, { 17, 6 }, { 47, 6 }, { 7, 6 }, { 57, 6 },
{ 25, 7 }, { 39, 7 }, { 24, 7 }, { 40, 7 }, { 6, 6 },
{ 58, 6 }, { 5, 6 }, { 59, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.6.3 - 63 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 0, 4 }, { 7, 5 }, { 57, 5 }, { 15, 6 }, { 49, 6 },
{ 25, 7 }, { 39, 7 }, { 24, 7 }, { 40, 7 }, { 18, 6 },
{ 46, 6 }, { 14, 6 }, { 50, 6 }, { 6, 5 }, { 58, 5 },
{ 5, 5 }, { 59, 5 }, { 31, 8 }, { 33, 8 }, { 30, 8 },
{ 34, 8 }, { 23, 7 }, { 41, 7 }, { 17, 6 }, { 47, 6 },
{ 13, 6 }, { 51, 6 }, { 16, 6 }, { 48, 6 }, { 4, 5 },
{ 60, 5 }, { 12, 6 }, { 52, 6 }, { 22, 7 }, { 42, 7 },
{ 29, 8 }, { 35, 8 }, { 28, 8 }, { 36, 8 }, { 3, 5 },
{ 61, 5 }, { 11, 6 }, { 53, 6 }, { 10, 6 }, { 54, 6 },
{ 2, 5 }, { 62, 5 }, { 21, 7 }, { 43, 7 }, { 20, 7 },
{ 44, 7 }, { 9, 6 }, { 55, 6 }, { 1, 5 }, { 63, 5 },
{ 27, 8 }, { 37, 8 }, { 26, 8 }, { 38, 8 }, { 19, 7 },
{ 45, 7 }, { 8, 6 }, { 56, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.6.4 - 63 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 16, 6 }, { 48, 6 }, { 27, 8 }, { 37, 8 }, { 26, 8 },
{ 38, 8 }, { 21, 7 }, { 43, 7 }, { 8, 5 }, { 56, 5 },
{ 1, 4 }, { 63, 4 }, { 14, 6 }, { 50, 6 }, { 20, 7 },
{ 44, 7 }, { 31, 9 }, { 33, 9 }, { 30, 9 }, { 34, 9 },
{ 25, 8 }, { 39, 8 }, { 7, 5 }, { 57, 5 }, { 0, 4 },
{ 6, 5 }, { 58, 5 }, { 13, 6 }, { 51, 6 }, { 12, 6 },
{ 52, 6 }, { 5, 5 }, { 59, 5 }, { 19, 7 }, { 45, 7 },
{ 24, 8 }, { 40, 8 }, { 29, 9 }, { 35, 9 }, { 28, 9 },
{ 36, 9 }, { 11, 6 }, { 53, 6 }, { 4, 5 }, { 60, 5 },
{ 18, 7 }, { 46, 7 }, { 23, 8 }, { 41, 8 }, { 22, 8 },
{ 42, 8 }, { 10, 6 }, { 54, 6 }, { 3, 5 }, { 61, 5 },
{ 2, 5 }, { 62, 5 }, { 17, 7 }, { 47, 7 }, { 15, 7 },
{ 49, 7 }, { 9, 6 }, { 55, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.7.1 - 127 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 18, 7 }, { 110, 7 }, { 63, 7 }, { 65, 7 }, { 38, 6 },
{ 90, 6 }, { 17, 7 }, { 111, 7 }, { 62, 7 }, { 66, 7 },
{ 61, 7 }, { 67, 7 }, { 16, 7 }, { 112, 7 }, { 37, 6 },
{ 91, 6 }, { 60, 7 }, { 68, 7 }, { 15, 7 }, { 113, 7 },
{ 32, 6 }, { 96, 6 }, { 59, 7 }, { 69, 7 }, { 14, 7 },
{ 114, 7 }, { 36, 6 }, { 92, 6 }, { 58, 7 }, { 70, 7 },
{ 13, 7 }, { 115, 7 }, { 57, 7 }, { 71, 7 }, { 12, 7 },
{ 116, 7 }, { 35, 6 }, { 93, 6 }, { 56, 7 }, { 72, 7 },
{ 55, 7 }, { 73, 7 }, { 11, 7 }, { 117, 7 }, { 10, 7 },
{ 118, 7 }, { 34, 6 }, { 94, 6 }, { 54, 7 }, { 74, 7 },
{ 9, 7 }, { 119, 7 }, { 33, 6 }, { 95, 6 }, { 53, 7 },
{ 75, 7 }, { 52, 7 }, { 76, 7 }, { 8, 7 }, { 120, 7 },
{ 51, 7 }, { 77, 7 }, { 50, 7 }, { 78, 7 }, { 7, 7 },
{ 121, 7 }, { 5, 7 }, { 123, 7 }, { 6, 7 }, { 122, 7 },
{ 49, 7 }, { 79, 7 }, { 4, 7 }, { 124, 7 }, { 31, 8 },
{ 97, 8 }, { 30, 8 }, { 98, 8 }, { 48, 7 }, { 80, 7 },
{ 3, 7 }, { 125, 7 }, { 29, 8 }, { 99, 8 }, { 28, 8 },
{ 100, 8 }, { 47, 7 }, { 81, 7 }, { 2, 7 }, { 126, 7 },
{ 46, 7 }, { 82, 7 }, { 1, 7 }, { 127, 7 }, { 27, 8 },
{ 101, 8 }, { 26, 8 }, { 102, 8 }, { 45, 7 }, { 83, 7 },
{ 0, 7 }, { 25, 8 }, { 103, 8 }, { 44, 7 }, { 84, 7 },
{ 24, 8 }, { 104, 8 }, { 23, 8 }, { 105, 8 }, { 43, 7 },
{ 85, 7 }, { 42, 7 }, { 86, 7 }, { 22, 8 }, { 106, 8 },
{ 21, 8 }, { 107, 8 }, { 41, 7 }, { 87, 7 }, { 20, 8 },
{ 108, 8 }, { 19, 8 }, { 109, 8 }, { 40, 7 }, { 88, 7 },
{ 39, 7 }, { 89, 7 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.7.2 - 127 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 47, 7 }, { 81, 7 }, { 46, 7 }, { 82, 7 }, { 8, 6 },
{ 120, 6 }, { 31, 7 }, { 97, 7 }, { 45, 7 }, { 83, 7 },
{ 7, 6 }, { 121, 6 }, { 30, 7 }, { 98, 7 }, { 29, 7 },
{ 99, 7 }, { 6, 6 }, { 122, 6 }, { 63, 8 }, { 65, 8 },
{ 62, 8 }, { 66, 8 }, { 44, 7 }, { 84, 7 }, { 5, 6 },
{ 123, 6 }, { 28, 7 }, { 100, 7 }, { 43, 7 }, { 85, 7 },
{ 4, 6 }, { 124, 6 }, { 27, 7 }, { 101, 7 }, { 26, 7 },
{ 102, 7 }, { 42, 7 }, { 86, 7 }, { 61, 8 }, { 67, 8 },
{ 60, 8 }, { 68, 8 }, { 3, 6 }, { 125, 6 }, { 25, 7 },
{ 103, 7 }, { 41, 7 }, { 87, 7 }, { 2, 6 }, { 126, 6 },
{ 24, 7 }, { 104, 7 }, { 59, 8 }, { 69, 8 }, { 58, 8 },
{ 70, 8 }, { 40, 7 }, { 88, 7 }, { 23, 7 }, { 105, 7 },
{ 39, 7 }, { 89, 7 }, { 22, 7 }, { 106, 7 }, { 1, 6 },
{ 127, 6 }, { 57, 8 }, { 71, 8 }, { 56, 8 }, { 72, 8 },
{ 21, 7 }, { 107, 7 }, { 38, 7 }, { 90, 7 }, { 20, 7 },
{ 108, 7 }, { 0, 6 }, { 55, 8 }, { 73, 8 }, { 54, 8 },
{ 74, 8 }, { 37, 7 }, { 91, 7 }, { 19, 7 }, { 109, 7 },
{ 18, 7 }, { 110, 7 }, { 36, 7 }, { 92, 7 }, { 53, 8 },
{ 75, 8 }, { 52, 8 }, { 76, 8 }, { 17, 7 }, { 111, 7 },
{ 35, 7 }, { 93, 7 }, { 32, 7 }, { 96, 7 }, { 16, 7 },
{ 112, 7 }, { 15, 7 }, { 113, 7 }, { 34, 7 }, { 94, 7 },
{ 51, 8 }, { 77, 8 }, { 50, 8 }, { 78, 8 }, { 14, 7 },
{ 114, 7 }, { 13, 7 }, { 115, 7 }, { 33, 7 }, { 95, 7 },
{ 12, 7 }, { 116, 7 }, { 49, 8 }, { 79, 8 }, { 48, 8 },
{ 80, 8 }, { 11, 7 }, { 117, 7 }, { 10, 7 }, { 118, 7 },
{ 9, 7 }, { 119, 7 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.7.3 - 127 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 15, 6 }, { 113, 6 }, { 31, 7 }, { 97, 7 }, { 51, 8 },
{ 77, 8 }, { 50, 8 }, { 78, 8 }, { 14, 6 }, { 114, 6 },
{ 0, 5 }, { 37, 7 }, { 91, 7 }, { 30, 7 }, { 98, 7 },
{ 13, 6 }, { 115, 6 }, { 29, 7 }, { 99, 7 }, { 49, 8 },
{ 79, 8 }, { 63, 9 }, { 65, 9 }, { 62, 9 }, { 66, 9 },
{ 12, 6 }, { 116, 6 }, { 36, 7 }, { 92, 7 }, { 28, 7 },
{ 100, 7 }, { 35, 7 }, { 93, 7 }, { 48, 8 }, { 80, 8 },
{ 47, 8 }, { 81, 8 }, { 11, 6 }, { 117, 6 }, { 10, 6 },
{ 118, 6 }, { 27, 7 }, { 101, 7 }, { 34, 7 }, { 94, 7 },
{ 61, 9 }, { 67, 9 }, { 60, 9 }, { 68, 9 }, { 46, 8 },
{ 82, 8 }, { 26, 7 }, { 102, 7 }, { 9, 6 }, { 119, 6 },
{ 32, 7 }, { 96, 7 }, { 33, 7 }, { 95, 7 }, { 8, 6 },
{ 120, 6 }, { 25, 7 }, { 103, 7 }, { 45, 8 }, { 83, 8 },
{ 59, 9 }, { 69, 9 }, { 58, 9 }, { 70, 9 }, { 7, 6 },
{ 121, 6 }, { 24, 7 }, { 104, 7 }, { 23, 7 }, { 105, 7 },
{ 6, 6 }, { 122, 6 }, { 44, 8 }, { 84, 8 }, { 57, 9 },
{ 71, 9 }, { 56, 9 }, { 72, 9 }, { 22, 7 }, { 106, 7 },
{ 5, 6 }, { 123, 6 }, { 43, 8 }, { 85, 8 }, { 42, 8 },
{ 86, 8 }, { 21, 7 }, { 107, 7 }, { 4, 6 }, { 124, 6 },
{ 20, 7 }, { 108, 7 }, { 55, 9 }, { 73, 9 }, { 54, 9 },
{ 74, 9 }, { 41, 8 }, { 87, 8 }, { 3, 6 }, { 125, 6 },
{ 19, 7 }, { 109, 7 }, { 18, 7 }, { 110, 7 }, { 2, 6 },
{ 126, 6 }, { 40, 8 }, { 88, 8 }, { 53, 9 }, { 75, 9 },
{ 52, 9 }, { 76, 9 }, { 17, 7 }, { 111, 7 }, { 39, 8 },
{ 89, 8 }, { 38, 8 }, { 90, 8 }, { 16, 7 }, { 112, 7 },
{ 1, 6 }, { 127, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table A.7.4 - 127 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 3, 5 }, { 125, 5 }, { 32, 7 }, { 96, 7 }, { 29, 7 },
{ 99, 7 }, { 16, 6 }, { 112, 6 }, { 2, 5 }, { 126, 5 },
{ 53, 9 }, { 75, 9 }, { 52, 9 }, { 76, 9 }, { 42, 8 },
{ 86, 8 }, { 28, 7 }, { 100, 7 }, { 15, 6 }, { 113, 6 },
{ 63, 10 }, { 65, 10 }, { 62, 10 }, { 66, 10 }, { 51, 9 },
{ 77, 9 }, { 41, 8 }, { 87, 8 }, { 27, 7 }, { 101, 7 },
{ 14, 6 }, { 114, 6 }, { 1, 5 }, { 127, 5 }, { 13, 6 },
{ 115, 6 }, { 0, 5 }, { 26, 7 }, { 102, 7 }, { 40, 8 },
{ 88, 8 }, { 50, 9 }, { 78, 9 }, { 61, 10 }, { 67, 10 },
{ 60, 10 }, { 68, 10 }, { 12, 6 }, { 116, 6 }, { 25, 7 },
{ 103, 7 }, { 39, 8 }, { 89, 8 }, { 49, 9 }, { 79, 9 },
{ 48, 9 }, { 80, 9 }, { 11, 6 }, { 117, 6 }, { 24, 7 },
{ 104, 7 }, { 38, 8 }, { 90, 8 }, { 59, 10 }, { 69, 10 },
{ 58, 10 }, { 70, 10 }, { 47, 9 }, { 81, 9 }, { 10, 6 },
{ 118, 6 }, { 9, 6 }, { 119, 6 }, { 23, 7 }, { 105, 7 },
{ 22, 7 }, { 106, 7 }, { 8, 6 }, { 120, 6 }, { 37, 8 },
{ 91, 8 }, { 36, 8 }, { 92, 8 }, { 21, 7 }, { 107, 7 },
{ 7, 6 }, { 121, 6 }, { 6, 6 }, { 122, 6 }, { 57, 10 },
{ 71, 10 }, { 56, 10 }, { 72, 10 }, { 46, 9 }, { 82, 9 },
{ 35, 8 }, { 93, 8 }, { 20, 7 }, { 108, 7 }, { 5, 6 },
{ 123, 6 }, { 19, 7 }, { 109, 7 }, { 45, 9 }, { 83, 9 },
{ 44, 9 }, { 84, 9 }, { 31, 8 }, { 97, 8 }, { 4, 6 },
{ 124, 6 }, { 34, 8 }, { 94, 8 }, { 55, 10 }, { 73, 10 },
{ 54, 10 }, { 74, 10 }, { 43, 9 }, { 85, 9 }, { 18, 7 },
{ 110, 7 }, { 30, 8 }, { 98, 8 }, { 33, 8 }, { 95, 8 },
{ 17, 7 }, { 111, 7 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.2.2 - 80 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 80, 5 }, { 240, 5 }, { 253, 10 }, { 87, 10 }, { 117, 10 },
{ 223, 10 }, { 93, 10 }, { 247, 10 }, { 221, 10 }, { 119, 10 },
{ 213, 10 }, { 127, 10 }, { 85, 10 }, { 255, 10 }, { 245, 10 },
{ 95, 10 }, { 81, 10 }, { 243, 10 }, { 17, 7 }, { 51, 7 },
{ 20, 6 }, { 60, 6 }, { 116, 9 }, { 220, 9 }, { 84, 9 },
{ 252, 9 }, { 68, 8 }, { 204, 8 }, { 212, 7 }, { 124, 7 },
{ 196, 6 }, { 76, 6 }, { 5, 5 }, { 15, 5 }, { 53, 7 },
{ 31, 7 }, { 61, 7 }, { 23, 7 }, { 52, 6 }, { 28, 6 },
{ 13, 5 }, { 7, 5 }, { 16, 4 }, { 48, 4 }, { 4, 4 },
{ 12, 4 }, { 49, 6 }, { 19, 6 }, { 244, 7 }, { 92, 7 },
{ 21, 9 }, { 63, 9 }, { 197, 9 }, { 79, 9 }, { 69, 10 },
{ 207, 10 }, { 205, 10 }, { 71, 10 }, { 241, 9 }, { 83, 9 },
{ 208, 6 }, { 112, 6 }, { 77, 9 }, { 199, 9 }, { 113, 9 },
{ 211, 9 }, { 29, 9 }, { 55, 9 }, { 209, 10 }, { 115, 10 },
{ 125, 10 }, { 215, 10 }, { 65, 8 }, { 195, 8 }, { 193, 8 },
{ 67, 8 }, { 64, 4 }, { 192, 4 }, { 1, 4 }, { 3, 4 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.2.3 - 81 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 16, 4 }, { 48, 4 }, { 4, 4 }, { 12, 4 }, { 64, 4 },
{ 192, 4 }, { 5, 6 }, { 15, 6 }, { 13, 6 }, { 7, 6 },
{ 212, 8 }, { 124, 8 }, { 213, 10 }, { 127, 10 }, { 93, 10 },
{ 247, 10 }, { 117, 10 }, { 223, 10 }, { 253, 10 }, { 87, 10 },
{ 21, 9 }, { 63, 9 }, { 221, 10 }, { 119, 10 }, { 81, 10 },
{ 243, 10 }, { 205, 10 }, { 71, 10 }, { 69, 10 }, { 207, 10 },
{ 245, 10 }, { 95, 10 }, { 209, 10 }, { 115, 10 }, { 125, 10 },
{ 215, 10 }, { 85, 10 }, { 255, 10 }, { 116, 10 }, { 220, 10 },
{ 241, 10 }, { 83, 10 }, { 77, 10 }, { 199, 10 }, { 84, 10 },
{ 252, 10 }, { 29, 9 }, { 55, 9 }, { 61, 8 }, { 23, 8 },
{ 53, 8 }, { 31, 8 }, { 1, 4 }, { 3, 4 }, { 193, 8 },
{ 67, 8 }, { 65, 8 }, { 195, 8 }, { 196, 7 }, { 76, 7 },
{ 49, 7 }, { 19, 7 }, { 20, 7 }, { 60, 7 }, { 52, 7 },
{ 28, 7 }, { 208, 7 }, { 112, 7 }, { 80, 7 }, { 240, 7 },
{ 113, 10 }, { 211, 10 }, { 197, 10 }, { 79, 10 }, { 68, 9 },
{ 204, 9 }, { 17, 9 }, { 51, 9 }, { 244, 9 }, { 92, 9 },
{ 0, 2 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.2.4 - 81 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 1, 4 }, { 3, 4 }, { 52, 7 }, { 28, 7 }, { 193, 8 },
{ 67, 8 }, { 213, 10 }, { 127, 10 }, { 253, 10 }, { 87, 10 },
{ 93, 10 }, { 247, 10 }, { 117, 10 }, { 223, 10 }, { 80, 7 },
{ 240, 7 }, { 196, 7 }, { 76, 7 }, { 208, 7 }, { 112, 7 },
{ 221, 10 }, { 119, 10 }, { 245, 10 }, { 95, 10 }, { 69, 10 },
{ 207, 10 }, { 85, 10 }, { 255, 10 }, { 209, 10 }, { 115, 10 },
{ 205, 10 }, { 71, 10 }, { 81, 10 }, { 243, 10 }, { 125, 10 },
{ 215, 10 }, { 5, 7 }, { 15, 7 }, { 116, 10 }, { 220, 10 },
{ 84, 10 }, { 252, 10 }, { 29, 10 }, { 55, 10 }, { 113, 10 },
{ 211, 10 }, { 241, 10 }, { 83, 10 }, { 21, 10 }, { 63, 10 },
{ 197, 10 }, { 79, 10 }, { 77, 10 }, { 199, 10 }, { 16, 5 },
{ 48, 5 }, { 4, 5 }, { 12, 5 }, { 49, 7 }, { 19, 7 },
{ 13, 7 }, { 7, 7 }, { 212, 10 }, { 124, 10 }, { 244, 10 },
{ 92, 10 }, { 68, 9 }, { 204, 9 }, { 53, 9 }, { 31, 9 },
{ 61, 9 }, { 23, 9 }, { 17, 9 }, { 51, 9 }, { 65, 9 },
{ 195, 9 }, { 20, 8 }, { 60, 8 }, { 64, 5 }, { 192, 5 },
{ 0, 1 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.3.2 - 49 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 58, 5 }, { 14, 5 }, { 59, 6 }, { 13, 6 }, { 19, 7 },
{ 53, 7 }, { 25, 7 }, { 47, 7 }, { 1, 4 }, { 7, 4 },
{ 0, 2 }, { 9, 6 }, { 63, 6 }, { 57, 6 }, { 15, 6 },
{ 24, 6 }, { 40, 6 }, { 17, 6 }, { 55, 6 }, { 42, 8 },
{ 30, 8 }, { 43, 9 }, { 29, 9 }, { 27, 9 }, { 45, 9 },
{ 41, 7 }, { 31, 7 }, { 3, 6 }, { 5, 6 }, { 8, 5 },
{ 56, 5 }, { 49, 6 }, { 23, 6 }, { 11, 7 }, { 61, 7 },
{ 26, 8 }, { 46, 8 }, { 51, 8 }, { 21, 8 }, { 16, 5 },
{ 48, 5 }, { 18, 7 }, { 54, 7 }, { 50, 7 }, { 22, 7 },
{ 10, 6 }, { 62, 6 }, { 2, 5 }, { 6, 5 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.3.3 - 49 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 57, 5 }, { 15, 5 }, { 9, 5 }, { 63, 5 }, { 59, 7 },
{ 13, 7 }, { 50, 7 }, { 22, 7 }, { 18, 7 }, { 54, 7 },
{ 51, 8 }, { 21, 8 }, { 27, 10 }, { 45, 10 }, { 43, 10 },
{ 29, 10 }, { 26, 9 }, { 46, 9 }, { 17, 6 }, { 55, 6 },
{ 49, 6 }, { 23, 6 }, { 8, 4 }, { 56, 4 }, { 16, 5 },
{ 48, 5 }, { 10, 6 }, { 62, 6 }, { 58, 6 }, { 14, 6 },
{ 1, 4 }, { 7, 4 }, { 2, 5 }, { 6, 5 }, { 25, 8 },
{ 47, 8 }, { 42, 9 }, { 30, 9 }, { 19, 9 }, { 53, 9 },
{ 24, 7 }, { 40, 7 }, { 41, 8 }, { 31, 8 }, { 11, 8 },
{ 61, 8 }, { 3, 7 }, { 5, 7 }, { 0, 2 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.3.4 - 49 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 0, 1 }, { 8, 4 }, { 56, 4 }, { 1, 4 }, { 7, 4 },
{ 59, 8 }, { 13, 8 }, { 27, 10 }, { 45, 10 }, { 43, 10 },
{ 29, 10 }, { 26, 10 }, { 46, 10 }, { 51, 10 }, { 21, 10 },
{ 18, 8 }, { 54, 8 }, { 50, 8 }, { 22, 8 }, { 16, 6 },
{ 48, 6 }, { 17, 7 }, { 55, 7 }, { 24, 8 }, { 40, 8 },
{ 19, 10 }, { 53, 10 }, { 42, 10 }, { 30, 10 }, { 25, 9 },
{ 47, 9 }, { 49, 7 }, { 23, 7 }, { 10, 7 }, { 62, 7 },
{ 2, 6 }, { 6, 6 }, { 58, 7 }, { 14, 7 }, { 11, 9 },
{ 61, 9 }, { 41, 9 }, { 31, 9 }, { 3, 8 }, { 5, 8 },
{ 9, 6 }, { 63, 6 }, { 57, 6 }, { 15, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.4.2 - 225 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 33, 7 }, { 239, 7 }, { 36, 7 }, { 236, 7 }, { 119, 10 },
{ 153, 10 }, { 151, 10 }, { 121, 10 }, { 118, 10 }, { 154, 10 },
{ 167, 10 }, { 105, 10 }, { 247, 8 }, { 25, 8 }, { 112, 8 },
{ 144, 8 }, { 150, 10 }, { 122, 10 }, { 103, 10 }, { 169, 10 },
{ 87, 10 }, { 185, 10 }, { 183, 10 }, { 89, 10 }, { 53, 8 },
{ 219, 8 }, { 213, 8 }, { 59, 8 }, { 228, 7 }, { 44, 7 },
{ 225, 7 }, { 47, 7 }, { 166, 10 }, { 106, 10 }, { 102, 10 },
{ 170, 10 }, { 149, 10 }, { 123, 10 }, { 117, 10 }, { 155, 10 },
{ 114, 9 }, { 158, 9 }, { 165, 10 }, { 107, 10 }, { 148, 10 },
{ 124, 10 }, { 81, 7 }, { 191, 7 }, { 21, 7 }, { 251, 7 },
{ 64, 6 }, { 192, 6 }, { 242, 7 }, { 30, 7 }, { 116, 10 },
{ 156, 10 }, { 71, 10 }, { 201, 10 }, { 101, 10 }, { 171, 10 },
{ 199, 10 }, { 73, 10 }, { 19, 8 }, { 253, 8 }, { 18, 7 },
{ 254, 7 }, { 182, 10 }, { 90, 10 }, { 86, 10 }, { 186, 10 },
{ 39, 9 }, { 233, 9 }, { 34, 8 }, { 238, 8 }, { 2, 6 },
{ 14, 6 }, { 177, 7 }, { 95, 7 }, { 231, 9 }, { 41, 9 },
{ 146, 9 }, { 126, 9 }, { 67, 8 }, { 205, 8 }, { 17, 6 },
{ 255, 6 }, { 241, 6 }, { 31, 6 }, { 16, 5 }, { 240, 5 },
{ 243, 8 }, { 29, 8 }, { 195, 8 }, { 77, 8 }, { 245, 7 },
{ 27, 7 }, { 7, 8 }, { 9, 8 }, { 209, 8 }, { 63, 8 },
{ 99, 9 }, { 173, 9 }, { 163, 9 }, { 109, 9 }, { 226, 8 },
{ 46, 8 }, { 212, 8 }, { 60, 8 }, { 97, 8 }, { 175, 8 },
{ 161, 8 }, { 111, 8 }, { 52, 8 }, { 220, 8 }, { 180, 9 },
{ 92, 9 }, { 50, 9 }, { 222, 9 }, { 35, 9 }, { 237, 9 },
{ 211, 10 }, { 61, 10 }, { 51, 10 }, { 221, 10 }, { 210, 9 },
{ 62, 9 }, { 84, 9 }, { 188, 9 }, { 82, 8 }, { 190, 8 },
{ 4, 6 }, { 12, 6 }, { 227, 9 }, { 45, 9 }, { 214, 9 },
{ 58, 9 }, { 54, 9 }, { 218, 9 }, { 197, 9 }, { 75, 9 },
{ 178, 8 }, { 94, 8 }, { 22, 8 }, { 250, 8 }, { 65, 7 },
{ 207, 7 }, { 80, 7 }, { 176, 7 }, { 246, 8 }, { 26, 8 },
{ 69, 9 }, { 203, 9 }, { 145, 9 }, { 127, 9 }, { 193, 7 },
{ 79, 7 }, { 37, 8 }, { 235, 8 }, { 229, 8 }, { 43, 8 },
{ 5, 7 }, { 11, 7 }, { 20, 7 }, { 252, 7 }, { 244, 7 },
{ 28, 7 }, { 1, 5 }, { 15, 5 }, { 98, 9 }, { 174, 9 },
{ 147, 10 }, { 125, 10 }, { 115, 10 }, { 157, 10 }, { 96, 8 },
{ 160, 8 }, { 113, 9 }, { 159, 9 }, { 38, 9 }, { 234, 9 },
{ 162, 9 }, { 110, 9 }, { 55, 10 }, { 217, 10 }, { 215, 10 },
{ 57, 10 }, { 48, 8 }, { 208, 8 }, { 68, 9 }, { 204, 9 },
{ 164, 10 }, { 108, 10 }, { 100, 10 }, { 172, 10 }, { 32, 7 },
{ 224, 7 }, { 0, 4 }, { 3, 8 }, { 13, 8 }, { 23, 9 },
{ 249, 9 }, { 230, 9 }, { 42, 9 }, { 83, 9 }, { 189, 9 },
{ 181, 10 }, { 91, 10 }, { 198, 10 }, { 74, 10 }, { 6, 8 },
{ 10, 8 }, { 66, 8 }, { 206, 8 }, { 179, 9 }, { 93, 9 },
{ 70, 10 }, { 202, 10 }, { 85, 10 }, { 187, 10 }, { 194, 8 },
{ 78, 8 }, { 196, 9 }, { 76, 9 }, { 49, 9 }, { 223, 9 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.4.3 - 225 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 193, 7 }, { 79, 7 }, { 48, 7 }, { 208, 7 }, { 6, 8 },
{ 10, 8 }, { 151, 10 }, { 121, 10 }, { 119, 10 }, { 153, 10 },
{ 167, 10 }, { 105, 10 }, { 118, 10 }, { 154, 10 }, { 103, 10 },
{ 169, 10 }, { 150, 10 }, { 122, 10 }, { 102, 10 }, { 170, 10 },
{ 183, 10 }, { 89, 10 }, { 117, 10 }, { 155, 10 }, { 149, 10 },
{ 123, 10 }, { 166, 10 }, { 106, 10 }, { 87, 10 }, { 185, 10 },
{ 116, 10 }, { 156, 10 }, { 148, 10 }, { 124, 10 }, { 71, 10 },
{ 201, 10 }, { 199, 10 }, { 73, 10 }, { 165, 10 }, { 107, 10 },
{ 182, 10 }, { 90, 10 }, { 101, 10 }, { 171, 10 }, { 86, 10 },
{ 186, 10 }, { 20, 7 }, { 252, 7 }, { 55, 10 }, { 217, 10 },
{ 147, 10 }, { 125, 10 }, { 115, 10 }, { 157, 10 }, { 215, 10 },
{ 57, 10 }, { 100, 10 }, { 172, 10 }, { 181, 10 }, { 91, 10 },
{ 198, 10 }, { 74, 10 }, { 114, 10 }, { 158, 10 }, { 244, 7 },
{ 28, 7 }, { 70, 10 }, { 202, 10 }, { 164, 10 }, { 108, 10 },
{ 85, 10 }, { 187, 10 }, { 146, 10 }, { 126, 10 }, { 39, 10 },
{ 233, 10 }, { 231, 10 }, { 41, 10 }, { 53, 9 }, { 219, 9 },
{ 54, 10 }, { 218, 10 }, { 99, 10 }, { 173, 10 }, { 214, 10 },
{ 58, 10 }, { 163, 10 }, { 109, 10 }, { 197, 10 }, { 75, 10 },
{ 84, 10 }, { 188, 10 }, { 69, 10 }, { 203, 10 }, { 113, 10 },
{ 159, 10 }, { 180, 10 }, { 92, 10 }, { 145, 10 }, { 127, 10 },
{ 98, 10 }, { 174, 10 }, { 23, 10 }, { 249, 10 }, { 247, 10 },
{ 25, 10 }, { 162, 10 }, { 110, 10 }, { 38, 10 }, { 234, 10 },
{ 230, 10 }, { 42, 10 }, { 83, 10 }, { 189, 10 }, { 179, 10 },
{ 93, 10 }, { 211, 10 }, { 61, 10 }, { 112, 10 }, { 144, 10 },
{ 51, 10 }, { 221, 10 }, { 68, 10 }, { 204, 10 }, { 213, 10 },
{ 59, 10 }, { 196, 10 }, { 76, 10 }, { 3, 7 }, { 13, 7 },
{ 66, 8 }, { 206, 8 }, { 81, 8 }, { 191, 8 }, { 32, 6 },
{ 224, 6 }, { 0, 2 }, { 7, 9 }, { 9, 9 }, { 97, 9 },
{ 175, 9 }, { 36, 8 }, { 236, 8 }, { 194, 8 }, { 78, 8 },
{ 177, 8 }, { 95, 8 }, { 2, 6 }, { 14, 6 }, { 21, 8 },
{ 251, 8 }, { 245, 8 }, { 27, 8 }, { 228, 8 }, { 44, 8 },
{ 22, 9 }, { 250, 9 }, { 246, 9 }, { 26, 9 }, { 49, 8 },
{ 223, 8 }, { 19, 8 }, { 253, 8 }, { 209, 8 }, { 63, 8 },
{ 243, 8 }, { 29, 8 }, { 225, 7 }, { 47, 7 }, { 64, 7 },
{ 192, 7 }, { 33, 7 }, { 239, 7 }, { 18, 7 }, { 254, 7 },
{ 242, 7 }, { 30, 7 }, { 161, 9 }, { 111, 9 }, { 178, 9 },
{ 94, 9 }, { 82, 9 }, { 190, 9 }, { 195, 9 }, { 77, 9 },
{ 52, 9 }, { 220, 9 }, { 212, 9 }, { 60, 9 }, { 67, 9 },
{ 205, 9 }, { 37, 9 }, { 235, 9 }, { 34, 8 }, { 238, 8 },
{ 226, 8 }, { 46, 8 }, { 17, 6 }, { 255, 6 }, { 4, 7 },
{ 12, 7 }, { 80, 8 }, { 176, 8 }, { 229, 9 }, { 43, 9 },
{ 35, 9 }, { 237, 9 }, { 16, 5 }, { 240, 5 }, { 241, 6 },
{ 31, 6 }, { 227, 9 }, { 45, 9 }, { 210, 9 }, { 62, 9 },
{ 50, 9 }, { 222, 9 }, { 96, 9 }, { 160, 9 }, { 5, 8 },
{ 11, 8 }, { 65, 8 }, { 207, 8 }, { 1, 5 }, { 15, 5 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.4.4 - 225 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 3, 7 }, { 13, 7 }, { 4, 7 }, { 12, 7 }, { 151, 10 },
{ 121, 10 }, { 119, 10 }, { 153, 10 }, { 103, 10 }, { 169, 10 },
{ 167, 10 }, { 105, 10 }, { 150, 10 }, { 122, 10 }, { 118, 10 },
{ 154, 10 }, { 117, 10 }, { 155, 10 }, { 102, 10 }, { 170, 10 },
{ 5, 8 }, { 11, 8 }, { 183, 10 }, { 89, 10 }, { 87, 10 },
{ 185, 10 }, { 166, 10 }, { 106, 10 }, { 149, 10 }, { 123, 10 },
{ 17, 5 }, { 255, 5 }, { 1, 4 }, { 15, 4 }, { 241, 5 },
{ 31, 5 }, { 116, 10 }, { 156, 10 }, { 148, 10 }, { 124, 10 },
{ 199, 10 }, { 73, 10 }, { 182, 10 }, { 90, 10 }, { 71, 10 },
{ 201, 10 }, { 86, 10 }, { 186, 10 }, { 101, 10 }, { 171, 10 },
{ 115, 10 }, { 157, 10 }, { 165, 10 }, { 107, 10 }, { 215, 10 },
{ 57, 10 }, { 55, 10 }, { 217, 10 }, { 70, 10 }, { 202, 10 },
{ 147, 10 }, { 125, 10 }, { 85, 10 }, { 187, 10 }, { 164, 10 },
{ 108, 10 }, { 198, 10 }, { 74, 10 }, { 100, 10 }, { 172, 10 },
{ 114, 10 }, { 158, 10 }, { 39, 10 }, { 233, 10 }, { 146, 10 },
{ 126, 10 }, { 99, 10 }, { 173, 10 }, { 181, 10 }, { 91, 10 },
{ 231, 10 }, { 41, 10 }, { 163, 10 }, { 109, 10 }, { 54, 10 },
{ 218, 10 }, { 214, 10 }, { 58, 10 }, { 113, 10 }, { 159, 10 },
{ 23, 10 }, { 249, 10 }, { 145, 10 }, { 127, 10 }, { 180, 10 },
{ 92, 10 }, { 84, 10 }, { 188, 10 }, { 247, 10 }, { 25, 10 },
{ 32, 6 }, { 224, 6 }, { 197, 10 }, { 75, 10 }, { 98, 10 },
{ 174, 10 }, { 112, 10 }, { 144, 10 }, { 162, 10 }, { 110, 10 },
{ 69, 10 }, { 203, 10 }, { 38, 10 }, { 234, 10 }, { 230, 10 },
{ 42, 10 }, { 7, 10 }, { 9, 10 }, { 213, 10 }, { 59, 10 },
{ 83, 10 }, { 189, 10 }, { 179, 10 }, { 93, 10 }, { 53, 10 },
{ 219, 10 }, { 97, 10 }, { 175, 10 }, { 68, 10 }, { 204, 10 },
{ 196, 10 }, { 76, 10 }, { 161, 10 }, { 111, 10 }, { 22, 10 },
{ 250, 10 }, { 246, 10 }, { 26, 10 }, { 82, 10 }, { 190, 10 },
{ 96, 10 }, { 160, 10 }, { 178, 10 }, { 94, 10 }, { 37, 10 },
{ 235, 10 }, { 67, 10 }, { 205, 10 }, { 51, 10 }, { 221, 10 },
{ 229, 10 }, { 43, 10 }, { 6, 10 }, { 10, 10 }, { 211, 10 },
{ 61, 10 }, { 212, 10 }, { 60, 10 }, { 195, 10 }, { 77, 10 },
{ 52, 10 }, { 220, 10 }, { 81, 10 }, { 191, 10 }, { 177, 10 },
{ 95, 10 }, { 65, 8 }, { 207, 8 }, { 21, 10 }, { 251, 10 },
{ 245, 10 }, { 27, 10 }, { 194, 10 }, { 78, 10 }, { 228, 10 },
{ 44, 10 }, { 193, 8 }, { 79, 8 }, { 20, 8 }, { 252, 8 },
{ 0, 2 }, { 2, 6 }, { 14, 6 }, { 19, 8 }, { 253, 8 },
{ 49, 8 }, { 223, 8 }, { 209, 8 }, { 63, 8 }, { 244, 8 },
{ 28, 8 }, { 66, 10 }, { 206, 10 }, { 210, 10 }, { 62, 10 },
{ 36, 9 }, { 236, 9 }, { 243, 8 }, { 29, 8 }, { 33, 7 },
{ 239, 7 }, { 225, 7 }, { 47, 7 }, { 64, 8 }, { 192, 8 },
{ 80, 9 }, { 176, 9 }, { 50, 9 }, { 222, 9 }, { 18, 7 },
{ 254, 7 }, { 242, 7 }, { 30, 7 }, { 48, 8 }, { 208, 8 },
{ 226, 8 }, { 46, 8 }, { 34, 8 }, { 238, 8 }, { 227, 9 },
{ 45, 9 }, { 35, 9 }, { 237, 9 }, { 16, 5 }, { 240, 5 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.5.2 - 31 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 3, 4 }, { 29, 4 }, { 5, 5 }, { 27, 5 }, { 10, 5 },
{ 22, 5 }, { 13, 6 }, { 19, 6 }, { 7, 6 }, { 25, 6 },
{ 4, 5 }, { 28, 5 }, { 2, 4 }, { 30, 4 }, { 9, 5 },
{ 23, 5 }, { 12, 6 }, { 20, 6 }, { 15, 7 }, { 17, 7 },
{ 14, 7 }, { 18, 7 }, { 8, 5 }, { 24, 5 }, { 6, 6 },
{ 26, 6 }, { 11, 6 }, { 21, 6 }, { 0, 3 }, { 1, 4 },
{ 31, 4 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.5.3 - 31 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 1, 3 }, { 31, 3 }, { 7, 6 }, { 25, 6 }, { 13, 7 },
{ 19, 7 }, { 12, 7 }, { 20, 7 }, { 10, 6 }, { 22, 6 },
{ 6, 6 }, { 26, 6 }, { 2, 4 }, { 30, 4 }, { 0, 2 },
{ 4, 5 }, { 28, 5 }, { 15, 8 }, { 17, 8 }, { 14, 8 },
{ 18, 8 }, { 11, 7 }, { 21, 7 }, { 9, 6 }, { 23, 6 },
{ 3, 5 }, { 29, 5 }, { 8, 6 }, { 24, 6 }, { 5, 6 },
{ 27, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.5.4 - 31 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 3, 4 }, { 29, 4 }, { 9, 6 }, { 23, 6 }, { 8, 6 },
{ 24, 6 }, { 13, 8 }, { 19, 8 }, { 12, 8 }, { 20, 8 },
{ 10, 7 }, { 22, 7 }, { 6, 6 }, { 26, 6 }, { 1, 3 },
{ 31, 3 }, { 2, 4 }, { 30, 4 }, { 4, 5 }, { 28, 5 },
{ 15, 9 }, { 17, 9 }, { 14, 9 }, { 18, 9 }, { 11, 8 },
{ 21, 8 }, { 7, 7 }, { 25, 7 }, { 5, 6 }, { 27, 6 },
{ 0, 2 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.6.2 - 63 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 11, 6 }, { 53, 6 }, { 21, 6 }, { 43, 6 }, { 27, 7 },
{ 37, 7 }, { 26, 7 }, { 38, 7 }, { 10, 6 }, { 54, 6 },
{ 5, 5 }, { 59, 5 }, { 20, 6 }, { 44, 6 }, { 9, 6 },
{ 55, 6 }, { 15, 7 }, { 49, 7 }, { 25, 7 }, { 39, 7 },
{ 19, 6 }, { 45, 6 }, { 4, 5 }, { 60, 5 }, { 1, 4 },
{ 63, 4 }, { 14, 7 }, { 50, 7 }, { 24, 7 }, { 40, 7 },
{ 8, 6 }, { 56, 6 }, { 18, 6 }, { 46, 6 }, { 31, 8 },
{ 33, 8 }, { 30, 8 }, { 34, 8 }, { 13, 7 }, { 51, 7 },
{ 3, 5 }, { 61, 5 }, { 23, 7 }, { 41, 7 }, { 12, 7 },
{ 52, 7 }, { 7, 6 }, { 57, 6 }, { 16, 6 }, { 48, 6 },
{ 17, 6 }, { 47, 6 }, { 0, 4 }, { 2, 5 }, { 62, 5 },
{ 22, 7 }, { 42, 7 }, { 29, 8 }, { 35, 8 }, { 28, 8 },
{ 36, 8 }, { 6, 6 }, { 58, 6 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.6.3 - 63 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 6, 5 }, { 58, 5 }, { 10, 6 }, { 54, 6 }, { 16, 6 },
{ 48, 6 }, { 17, 6 }, { 47, 6 }, { 21, 7 }, { 43, 7 },
{ 14, 7 }, { 50, 7 }, { 5, 5 }, { 59, 5 }, { 2, 4 },
{ 62, 4 }, { 9, 6 }, { 55, 6 }, { 25, 8 }, { 39, 8 },
{ 31, 9 }, { 33, 9 }, { 30, 9 }, { 34, 9 }, { 20, 7 },
{ 44, 7 }, { 8, 6 }, { 56, 6 }, { 13, 7 }, { 51, 7 },
{ 19, 7 }, { 45, 7 }, { 4, 5 }, { 60, 5 }, { 24, 8 },
{ 40, 8 }, { 29, 9 }, { 35, 9 }, { 28, 9 }, { 36, 9 },
{ 12, 7 }, { 52, 7 }, { 7, 6 }, { 57, 6 }, { 3, 5 },
{ 61, 5 }, { 18, 7 }, { 46, 7 }, { 23, 8 }, { 41, 8 },
{ 22, 8 }, { 42, 8 }, { 11, 7 }, { 53, 7 }, { 15, 8 },
{ 49, 8 }, { 27, 9 }, { 37, 9 }, { 26, 9 }, { 38, 9 },
{ 0, 3 }, { 1, 4 }, { 63, 4 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.6.4 - 63 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 1, 3 }, { 63, 3 }, { 14, 7 }, { 50, 7 }, { 18, 7 },
{ 46, 7 }, { 27, 9 }, { 37, 9 }, { 26, 9 }, { 38, 9 },
{ 21, 8 }, { 43, 8 }, { 13, 7 }, { 51, 7 }, { 9, 6 },
{ 55, 6 }, { 17, 7 }, { 47, 7 }, { 31, 10 }, { 33, 10 },
{ 30, 10 }, { 34, 10 }, { 25, 9 }, { 39, 9 }, { 20, 8 },
{ 44, 8 }, { 5, 5 }, { 59, 5 }, { 16, 7 }, { 48, 7 },
{ 12, 7 }, { 52, 7 }, { 8, 6 }, { 56, 6 }, { 2, 4 },
{ 62, 4 }, { 4, 5 }, { 60, 5 }, { 24, 9 }, { 40, 9 },
{ 29, 10 }, { 35, 10 }, { 28, 10 }, { 36, 10 }, { 15, 8 },
{ 49, 8 }, { 11, 7 }, { 53, 7 }, { 7, 6 }, { 57, 6 },
{ 19, 8 }, { 45, 8 }, { 23, 9 }, { 41, 9 }, { 22, 9 },
{ 42, 9 }, { 10, 7 }, { 54, 7 }, { 6, 6 }, { 58, 6 },
{ 3, 5 }, { 61, 5 }, { 0, 3 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.7.2 - 127 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 3, 5 }, { 125, 5 }, { 42, 7 }, { 86, 7 }, { 21, 7 },
{ 107, 7 }, { 11, 6 }, { 117, 6 }, { 41, 7 }, { 87, 7 },
{ 20, 7 }, { 108, 7 }, { 53, 8 }, { 75, 8 }, { 31, 8 },
{ 97, 8 }, { 40, 7 }, { 88, 7 }, { 52, 8 }, { 76, 8 },
{ 51, 8 }, { 77, 8 }, { 19, 7 }, { 109, 7 }, { 10, 6 },
{ 118, 6 }, { 30, 8 }, { 98, 8 }, { 29, 8 }, { 99, 8 },
{ 18, 7 }, { 110, 7 }, { 9, 6 }, { 119, 6 }, { 39, 7 },
{ 89, 7 }, { 17, 7 }, { 111, 7 }, { 28, 8 }, { 100, 8 },
{ 50, 8 }, { 78, 8 }, { 38, 7 }, { 90, 7 }, { 2, 5 },
{ 126, 5 }, { 8, 6 }, { 120, 6 }, { 49, 8 }, { 79, 8 },
{ 48, 8 }, { 80, 8 }, { 16, 7 }, { 112, 7 }, { 37, 7 },
{ 91, 7 }, { 63, 9 }, { 65, 9 }, { 62, 9 }, { 66, 9 },
{ 27, 8 }, { 101, 8 }, { 7, 6 }, { 121, 6 }, { 36, 7 },
{ 92, 7 }, { 26, 8 }, { 102, 8 }, { 47, 8 }, { 81, 8 },
{ 61, 9 }, { 67, 9 }, { 60, 9 }, { 68, 9 }, { 46, 8 },
{ 82, 8 }, { 15, 7 }, { 113, 7 }, { 6, 6 }, { 122, 6 },
{ 25, 8 }, { 103, 8 }, { 45, 8 }, { 83, 8 }, { 35, 7 },
{ 93, 7 }, { 1, 5 }, { 127, 5 }, { 14, 7 }, { 114, 7 },
{ 59, 9 }, { 69, 9 }, { 58, 9 }, { 70, 9 }, { 24, 8 },
{ 104, 8 }, { 5, 6 }, { 123, 6 }, { 32, 7 }, { 96, 7 },
{ 34, 7 }, { 94, 7 }, { 13, 7 }, { 115, 7 }, { 23, 8 },
{ 105, 8 }, { 44, 8 }, { 84, 8 }, { 4, 6 }, { 124, 6 },
{ 57, 9 }, { 71, 9 }, { 56, 9 }, { 72, 9 }, { 43, 8 },
{ 85, 8 }, { 12, 7 }, { 116, 7 }, { 0, 5 }, { 33, 7 },
{ 95, 7 }, { 22, 8 }, { 106, 8 }, { 55, 9 }, { 73, 9 },
{ 54, 9 }, { 74, 9 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.7.3 - 127 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 0, 3 }, { 4, 5 }, { 124, 5 }, { 19, 7 }, { 109, 7 },
{ 29, 8 }, { 99, 8 }, { 51, 9 }, { 77, 9 }, { 62, 10 },
{ 66, 10 }, { 63, 10 }, { 65, 10 }, { 28, 8 }, { 100, 8 },
{ 41, 8 }, { 87, 8 }, { 33, 7 }, { 95, 7 }, { 10, 6 },
{ 118, 6 }, { 18, 7 }, { 110, 7 }, { 40, 8 }, { 88, 8 },
{ 27, 8 }, { 101, 8 }, { 9, 6 }, { 119, 6 }, { 17, 7 },
{ 111, 7 }, { 50, 9 }, { 78, 9 }, { 61, 10 }, { 67, 10 },
{ 60, 10 }, { 68, 10 }, { 26, 8 }, { 102, 8 }, { 1, 4 },
{ 127, 4 }, { 3, 5 }, { 125, 5 }, { 39, 8 }, { 89, 8 },
{ 49, 9 }, { 79, 9 }, { 48, 9 }, { 80, 9 }, { 16, 7 },
{ 112, 7 }, { 8, 6 }, { 120, 6 }, { 25, 8 }, { 103, 8 },
{ 38, 8 }, { 90, 8 }, { 15, 7 }, { 113, 7 }, { 7, 6 },
{ 121, 6 }, { 59, 10 }, { 69, 10 }, { 58, 10 }, { 70, 10 },
{ 47, 9 }, { 81, 9 }, { 24, 8 }, { 104, 8 }, { 37, 8 },
{ 91, 8 }, { 23, 8 }, { 105, 8 }, { 14, 7 }, { 114, 7 },
{ 46, 9 }, { 82, 9 }, { 57, 10 }, { 71, 10 }, { 56, 10 },
{ 72, 10 }, { 36, 8 }, { 92, 8 }, { 2, 5 }, { 126, 5 },
{ 6, 6 }, { 122, 6 }, { 45, 9 }, { 83, 9 }, { 31, 9 },
{ 97, 9 }, { 22, 8 }, { 106, 8 }, { 13, 7 }, { 115, 7 },
{ 21, 8 }, { 107, 8 }, { 55, 10 }, { 73, 10 }, { 54, 10 },
{ 74, 10 }, { 44, 9 }, { 84, 9 }, { 12, 7 }, { 116, 7 },
{ 5, 6 }, { 123, 6 }, { 35, 8 }, { 93, 8 }, { 43, 9 },
{ 85, 9 }, { 30, 9 }, { 98, 9 }, { 20, 8 }, { 108, 8 },
{ 53, 10 }, { 75, 10 }, { 52, 10 }, { 76, 10 }, { 42, 9 },
{ 86, 9 }, { 34, 8 }, { 94, 8 }, { 32, 8 }, { 96, 8 },
{ 11, 7 }, { 117, 7 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
/* Coefficient table B.7.4 - 127 entries */
avcodec/atrac9dec: Make tables used to initialize VLCs smaller The ATRAC9 decoder uses VLCs which are currently initialized with static length tables of type uint8_t and code tables of type uint16_t. Furthermore, in one case the actually desired symbols are in the range -16..15 and in order to achieve this an ad-hoc symbols table of type int16_t is calculated. This commit modifies this process by replacing the codes tables by symbols tables and switching to ff_init_vlc_from_lengths(); the signed symbols are stored in the table after having been shifted by 16 to fit into an uint8_t and are shifted back when the VLC is created. This makes all symbols fit into an uint8_t, saving space. Furthermore, the earlier tables had holes in them (entries with length zero that were inserted because the actually used symbols were not contiguous); these holes are unnecessary in the new approach, leading to further saving. Finally, given that now both lengths as well as symbols are of the same type, they can be combined; this saves a pointer for each VLC. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 09:25:47 +02:00
{ 28, 8 }, { 100, 8 }, { 27, 8 }, { 101, 8 }, { 36, 8 },
{ 92, 8 }, { 63, 10 }, { 65, 10 }, { 61, 10 }, { 67, 10 },
{ 62, 10 }, { 66, 10 }, { 60, 10 }, { 68, 10 }, { 19, 7 },
{ 109, 7 }, { 59, 10 }, { 69, 10 }, { 58, 10 }, { 70, 10 },
{ 57, 10 }, { 71, 10 }, { 56, 10 }, { 72, 10 }, { 55, 10 },
{ 73, 10 }, { 53, 10 }, { 75, 10 }, { 54, 10 }, { 74, 10 },
{ 52, 10 }, { 76, 10 }, { 5, 5 }, { 123, 5 }, { 0, 3 },
{ 51, 10 }, { 77, 10 }, { 50, 10 }, { 78, 10 }, { 49, 10 },
{ 79, 10 }, { 48, 10 }, { 80, 10 }, { 47, 10 }, { 81, 10 },
{ 46, 10 }, { 82, 10 }, { 43, 9 }, { 85, 9 }, { 18, 7 },
{ 110, 7 }, { 11, 6 }, { 117, 6 }, { 26, 8 }, { 102, 8 },
{ 35, 8 }, { 93, 8 }, { 25, 8 }, { 103, 8 }, { 42, 9 },
{ 86, 9 }, { 41, 9 }, { 87, 9 }, { 10, 6 }, { 118, 6 },
{ 4, 5 }, { 124, 5 }, { 17, 7 }, { 111, 7 }, { 34, 8 },
{ 94, 8 }, { 24, 8 }, { 104, 8 }, { 9, 6 }, { 119, 6 },
{ 1, 4 }, { 127, 4 }, { 16, 7 }, { 112, 7 }, { 32, 8 },
{ 96, 8 }, { 33, 8 }, { 95, 8 }, { 23, 8 }, { 105, 8 },
{ 40, 9 }, { 88, 9 }, { 31, 9 }, { 97, 9 }, { 15, 7 },
{ 113, 7 }, { 8, 6 }, { 120, 6 }, { 39, 9 }, { 89, 9 },
{ 45, 10 }, { 83, 10 }, { 44, 10 }, { 84, 10 }, { 22, 8 },
{ 106, 8 }, { 14, 7 }, { 114, 7 }, { 3, 5 }, { 125, 5 },
{ 7, 6 }, { 121, 6 }, { 30, 9 }, { 98, 9 }, { 38, 9 },
{ 90, 9 }, { 21, 8 }, { 107, 8 }, { 13, 7 }, { 115, 7 },
{ 29, 9 }, { 99, 9 }, { 37, 9 }, { 91, 9 }, { 20, 8 },
{ 108, 8 }, { 12, 7 }, { 116, 7 }, { 6, 6 }, { 122, 6 },
{ 2, 5 }, { 126, 5 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
};
static const HuffmanCodebook at9_huffman_coeffs[][8][4] = {
{
{ { 0 } },
{ { 0 } },
{
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 8, 2, 1, 2 },
{ 80, 4, 2, 2 },
{ 81, 4, 2, 2 },
{ 81, 4, 2, 2 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 40, 2, 1, 3 },
{ 49, 2, 1, 3 },
{ 49, 2, 1, 3 },
{ 49, 2, 1, 3 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 176, 2, 1, 4 },
{ 225, 2, 1, 4 },
{ 225, 2, 1, 4 },
{ 225, 2, 1, 4 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 31, 1, 0, 5 },
{ 31, 1, 0, 5 },
{ 31, 1, 0, 5 },
{ 31, 1, 0, 5 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 63, 1, 0, 6 },
{ 63, 1, 0, 6 },
{ 63, 1, 0, 6 },
{ 63, 1, 0, 6 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 127, 1, 0, 7 },
{ 127, 1, 0, 7 },
{ 127, 1, 0, 7 },
{ 127, 1, 0, 7 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
},
{
{ { 0 } },
{ { 0 } },
{
{ 0 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 80, 4, 2, 2 },
{ 81, 4, 2, 2 },
{ 81, 4, 2, 2 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{
{ 0 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 49, 2, 1, 3 },
{ 49, 2, 1, 3 },
{ 49, 2, 1, 3 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{
{ 0 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 225, 2, 1, 4 },
{ 225, 2, 1, 4 },
{ 225, 2, 1, 4 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{
{ 0 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 31, 1, 0, 5 },
{ 31, 1, 0, 5 },
{ 31, 1, 0, 5 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{
{ 0 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 63, 1, 0, 6 },
{ 63, 1, 0, 6 },
{ 63, 1, 0, 6 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
{
{ 0 },
avcodec/atrac9tab: Unify tables used to initialize VLCs Using separate tables has the downside that one needs a big number of pointers to the separate tables (currently 77); unifying them avoids this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-04 21:41:35 +02:00
{ 127, 1, 0, 7 },
{ 127, 1, 0, 7 },
{ 127, 1, 0, 7 },
lavc: implement an ATRAC9 decoder This commit implements a full ATRAC9 decoder, a simple low-delay codec developed by Sony and used in most PSVita games, some PS3 games and some PS4 games. Its similar to AAC in that it uses Huffman coded scalefactors but instead of vector quantization it just Huffman codes the spectral coefficients (in a way similar to how Opus splits band energy coding into coarse and fine precision). It opts to write rather large Huffman codes by packing several small coefficients into one Huffman coded symbol, though I don't believe this increases efficiency at all. Band extension implements SBC in a simple way, first it mirrors the lower spectrum onto the higher frequencies and then it uses one of 5 filters to shape it. Noise substitution is implemented via 2 of them. Unlike previous ATRAC codecs, there's no QMF, this is a standard MDCT codec. Based off of the reverse engineering work of Alex Barney. Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-06-30 09:31:31 +02:00
},
},
};
lavc/atrac9tab: Add inclusion guards. Fixes fate-source.
2018-07-04 18:54:44 +02:00
#endif /* AVCODEC_ATRAC9TAB_H */
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