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avcodec/aacdectab: Deduplicate common decoder tables

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2023-09-24 21:48:22 +02:00
parent 8c1e71a811
commit 1f15a7e9a8
6 changed files with 154 additions and 114 deletions
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6
libavcodec/Makefile
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@ -176,10 +176,12 @@ OBJS-$(CONFIG_WMV2DSP) += wmv2dsp.o
OBJS-$(CONFIG_ZERO12V_DECODER) += 012v.o
OBJS-$(CONFIG_A64MULTI_ENCODER) += a64multienc.o elbg.o
OBJS-$(CONFIG_A64MULTI5_ENCODER) += a64multienc.o elbg.o
OBJS-$(CONFIG_AAC_DECODER) += aacdec.o aactab.o aacsbr.o aacps_common.o aacps_float.o \
OBJS-$(CONFIG_AAC_DECODER) += aacdec.o aacdec_common.o aactab.o \
aacsbr.o aacps_common.o aacps_float.o \
kbdwin.o \
sbrdsp.o aacpsdsp_float.o cbrt_data.o
OBJS-$(CONFIG_AAC_FIXED_DECODER) += aacdec_fixed.o aactab.o aacsbr_fixed.o aacps_common.o aacps_fixed.o \
OBJS-$(CONFIG_AAC_FIXED_DECODER) += aacdec_fixed.o aacdec_common.o aactab.o \
aacsbr_fixed.o aacps_common.o aacps_fixed.o \
kbdwin.o \
sbrdsp_fixed.o aacpsdsp_fixed.o cbrt_data_fixed.o
OBJS-$(CONFIG_AAC_ENCODER) += aacenc.o aaccoder.o aacenctab.o \

8
libavcodec/aacdec.c
View File

@ -564,8 +564,8 @@ const FFCodec ff_aac_decoder = {
},
.p.capabilities = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(aac_channel_layout)
.p.ch_layouts = aac_ch_layout,
CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(ff_aac_channel_layout)
.p.ch_layouts = ff_aac_ch_layout,
.flush = flush,
.p.priv_class = &aac_decoder_class,
.p.profiles = NULL_IF_CONFIG_SMALL(ff_aac_profiles),
@ -590,8 +590,8 @@ const FFCodec ff_aac_latm_decoder = {
},
.p.capabilities = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(aac_channel_layout)
.p.ch_layouts = aac_ch_layout,
CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(ff_aac_channel_layout)
.p.ch_layouts = ff_aac_ch_layout,
.flush = flush,
.p.profiles = NULL_IF_CONFIG_SMALL(ff_aac_profiles),
};

119
libavcodec/aacdec_common.c Normal file
View File

@ -0,0 +1,119 @@
/*
* Common code and tables of the AAC fixed- and floating-point decoders
* Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
* Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov 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
*/
/**
* @file
* Common code and tables of the AAC fixed- and floating-point decoders
*/
#include "aac.h"
#include "aacdectab.h"
const int8_t ff_tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 5, 5, 16, 5, 0 };
const uint8_t ff_aac_channel_layout_map[16][16][3] = {
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, },
{ { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_FRONT }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
{ { 0, } },
{ { 0, } },
{ { 0, } },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
{
{ TYPE_SCE, 0, AAC_CHANNEL_FRONT }, // SCE1 = FC,
{ TYPE_CPE, 0, AAC_CHANNEL_FRONT }, // CPE1 = FLc and FRc,
{ TYPE_CPE, 1, AAC_CHANNEL_FRONT }, // CPE2 = FL and FR,
{ TYPE_CPE, 2, AAC_CHANNEL_BACK }, // CPE3 = SiL and SiR,
{ TYPE_CPE, 3, AAC_CHANNEL_BACK }, // CPE4 = BL and BR,
{ TYPE_SCE, 1, AAC_CHANNEL_BACK }, // SCE2 = BC,
{ TYPE_LFE, 0, AAC_CHANNEL_LFE }, // LFE1 = LFE1,
{ TYPE_LFE, 1, AAC_CHANNEL_LFE }, // LFE2 = LFE2,
{ TYPE_SCE, 2, AAC_CHANNEL_FRONT }, // SCE3 = TpFC,
{ TYPE_CPE, 4, AAC_CHANNEL_FRONT }, // CPE5 = TpFL and TpFR,
{ TYPE_CPE, 5, AAC_CHANNEL_SIDE }, // CPE6 = TpSiL and TpSiR,
{ TYPE_SCE, 3, AAC_CHANNEL_SIDE }, // SCE4 = TpC,
{ TYPE_CPE, 6, AAC_CHANNEL_BACK }, // CPE7 = TpBL and TpBR,
{ TYPE_SCE, 4, AAC_CHANNEL_BACK }, // SCE5 = TpBC,
{ TYPE_SCE, 5, AAC_CHANNEL_FRONT }, // SCE6 = BtFC,
{ TYPE_CPE, 7, AAC_CHANNEL_FRONT }, // CPE8 = BtFL and BtFR
},
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, { TYPE_CPE, 2, AAC_CHANNEL_FRONT }, },
{ { 0, } },
};
const int16_t ff_aac_channel_map[3][4][6] = {
{
{ AV_CHAN_FRONT_CENTER, AV_CHAN_FRONT_LEFT_OF_CENTER, AV_CHAN_FRONT_RIGHT_OF_CENTER, AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT, AV_CHAN_NONE },
{ AV_CHAN_UNUSED, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
{ AV_CHAN_UNUSED, AV_CHAN_SIDE_LEFT, AV_CHAN_SIDE_RIGHT, AV_CHAN_BACK_LEFT, AV_CHAN_BACK_RIGHT, AV_CHAN_BACK_CENTER },
{ AV_CHAN_LOW_FREQUENCY, AV_CHAN_LOW_FREQUENCY_2, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
},
{
{ AV_CHAN_TOP_FRONT_CENTER, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_FRONT_LEFT, AV_CHAN_TOP_FRONT_RIGHT, AV_CHAN_NONE },
{ AV_CHAN_UNUSED, AV_CHAN_TOP_SIDE_LEFT, AV_CHAN_TOP_SIDE_RIGHT, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_CENTER},
{ AV_CHAN_UNUSED, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_BACK_LEFT, AV_CHAN_TOP_BACK_RIGHT, AV_CHAN_TOP_BACK_CENTER},
{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE},
},
{
{ AV_CHAN_BOTTOM_FRONT_CENTER, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_BOTTOM_FRONT_LEFT, AV_CHAN_BOTTOM_FRONT_RIGHT, AV_CHAN_NONE },
{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
},
};
#if FF_API_OLD_CHANNEL_LAYOUT
const uint64_t ff_aac_channel_layout[] = {
AV_CH_LAYOUT_MONO,
AV_CH_LAYOUT_STEREO,
AV_CH_LAYOUT_SURROUND,
AV_CH_LAYOUT_4POINT0,
AV_CH_LAYOUT_5POINT0_BACK,
AV_CH_LAYOUT_5POINT1_BACK,
AV_CH_LAYOUT_7POINT1_WIDE_BACK,
AV_CH_LAYOUT_6POINT1_BACK,
AV_CH_LAYOUT_7POINT1,
AV_CH_LAYOUT_22POINT2,
AV_CH_LAYOUT_7POINT1_TOP_BACK,
0,
};
#endif
const AVChannelLayout ff_aac_ch_layout[] = {
AV_CHANNEL_LAYOUT_MONO,
AV_CHANNEL_LAYOUT_STEREO,
AV_CHANNEL_LAYOUT_SURROUND,
AV_CHANNEL_LAYOUT_4POINT0,
AV_CHANNEL_LAYOUT_5POINT0_BACK,
AV_CHANNEL_LAYOUT_5POINT1_BACK,
AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK,
AV_CHANNEL_LAYOUT_6POINT1_BACK,
AV_CHANNEL_LAYOUT_7POINT1,
AV_CHANNEL_LAYOUT_22POINT2,
AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK,
{ 0 },
};

4
libavcodec/aacdec_fixed.c
View File

@ -465,8 +465,8 @@ const FFCodec ff_aac_fixed_decoder = {
},
.p.capabilities = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(aac_channel_layout)
.p.ch_layouts = aac_ch_layout,
CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(ff_aac_channel_layout)
.p.ch_layouts = ff_aac_ch_layout,
.p.priv_class = &aac_decoder_class,
.p.profiles = NULL_IF_CONFIG_SMALL(ff_aac_profiles),
.flush = flush,

36
libavcodec/aacdec_template.c
View File

@ -283,10 +283,10 @@ static int assign_channels(struct elem_to_channel e2c_vec[MAX_ELEM_ID], uint8_t
if (pos == AAC_CHANNEL_LFE) {
while (nb_channels) {
if (aac_channel_map[layer][pos - 1][j] == AV_CHAN_NONE)
if (ff_aac_channel_map[layer][pos - 1][j] == AV_CHAN_NONE)
return -1;
e2c_vec[i] = (struct elem_to_channel) {
.av_position = 1ULL << aac_channel_map[layer][pos - 1][j],
.av_position = 1ULL << ff_aac_channel_map[layer][pos - 1][j],
.syn_ele = layout_map[i][0],
.elem_id = layout_map[i][1],
.aac_position = pos
@ -302,12 +302,12 @@ static int assign_channels(struct elem_to_channel e2c_vec[MAX_ELEM_ID], uint8_t
}
while (nb_channels & 1) {
if (aac_channel_map[layer][pos - 1][0] == AV_CHAN_NONE)
if (ff_aac_channel_map[layer][pos - 1][0] == AV_CHAN_NONE)
return -1;
if (aac_channel_map[layer][pos - 1][0] == AV_CHAN_UNUSED)
if (ff_aac_channel_map[layer][pos - 1][0] == AV_CHAN_UNUSED)
break;
e2c_vec[i] = (struct elem_to_channel) {
.av_position = 1ULL << aac_channel_map[layer][pos - 1][0],
.av_position = 1ULL << ff_aac_channel_map[layer][pos - 1][0],
.syn_ele = layout_map[i][0],
.elem_id = layout_map[i][1],
.aac_position = pos
@ -319,21 +319,21 @@ static int assign_channels(struct elem_to_channel e2c_vec[MAX_ELEM_ID], uint8_t
j = (pos != AAC_CHANNEL_SIDE) && nb_channels <= 3 ? 3 : 1;
while (nb_channels >= 2) {
if (aac_channel_map[layer][pos - 1][j] == AV_CHAN_NONE ||
aac_channel_map[layer][pos - 1][j+1] == AV_CHAN_NONE)
if (ff_aac_channel_map[layer][pos - 1][j] == AV_CHAN_NONE ||
ff_aac_channel_map[layer][pos - 1][j+1] == AV_CHAN_NONE)
return -1;
i += assign_pair(e2c_vec, layout_map, i,
1ULL << aac_channel_map[layer][pos - 1][j],
1ULL << aac_channel_map[layer][pos - 1][j+1],
1ULL << ff_aac_channel_map[layer][pos - 1][j],
1ULL << ff_aac_channel_map[layer][pos - 1][j+1],
pos, layout);
j += 2;
nb_channels -= 2;
}
while (nb_channels & 1) {
if (aac_channel_map[layer][pos - 1][5] == AV_CHAN_NONE)
if (ff_aac_channel_map[layer][pos - 1][5] == AV_CHAN_NONE)
return -1;
e2c_vec[i] = (struct elem_to_channel) {
.av_position = 1ULL << aac_channel_map[layer][pos - 1][5],
.av_position = 1ULL << ff_aac_channel_map[layer][pos - 1][5],
.syn_ele = layout_map[i][0],
.elem_id = layout_map[i][1],
.aac_position = pos
@ -552,8 +552,8 @@ static int set_default_channel_config(AACContext *ac, AVCodecContext *avctx,
channel_config);
return AVERROR_INVALIDDATA;
}
*tags = tags_per_config[channel_config];
memcpy(layout_map, aac_channel_layout_map[channel_config - 1],
*tags = ff_tags_per_config[channel_config];
memcpy(layout_map, ff_aac_channel_layout_map[channel_config - 1],
*tags * sizeof(*layout_map));
/*
@ -661,7 +661,7 @@ static ChannelElement *get_che(AACContext *ac, int type, int elem_id)
* SCE[0] CPE[0] CPE[1] LFE[0].
* If we seem to have encountered such a stream, transfer
* the LFE[0] element to the SCE[1]'s mapping */
if (ac->tags_mapped == tags_per_config[ac->oc[1].m4ac.chan_config] - 1 && (type == TYPE_LFE || type == TYPE_SCE)) {
if (ac->tags_mapped == ff_tags_per_config[ac->oc[1].m4ac.chan_config] - 1 && (type == TYPE_LFE || type == TYPE_SCE)) {
if (!ac->warned_remapping_once && (type != TYPE_LFE || elem_id != 0)) {
av_log(ac->avctx, AV_LOG_WARNING,
"This stream seems to incorrectly report its last channel as %s[%d], mapping to LFE[0]\n",
@ -683,7 +683,7 @@ static ChannelElement *get_che(AACContext *ac, int type, int elem_id)
* SCE[0] CPE[0] SCE[1].
* If we seem to have encountered such a stream, transfer
* the SCE[1] element to the LFE[0]'s mapping */
if (ac->tags_mapped == tags_per_config[ac->oc[1].m4ac.chan_config] - 1 && (type == TYPE_LFE || type == TYPE_SCE)) {
if (ac->tags_mapped == ff_tags_per_config[ac->oc[1].m4ac.chan_config] - 1 && (type == TYPE_LFE || type == TYPE_SCE)) {
if (!ac->warned_remapping_once && (type != TYPE_SCE || elem_id != 1)) {
av_log(ac->avctx, AV_LOG_WARNING,
"This stream seems to incorrectly report its last channel as %s[%d], mapping to SCE[1]\n",
@ -3091,9 +3091,9 @@ static int aac_decode_er_frame(AVCodecContext *avctx, void *data,
chan_config);
return AVERROR_INVALIDDATA;
}
for (i = 0; i < tags_per_config[chan_config]; i++) {
const int elem_type = aac_channel_layout_map[chan_config-1][i][0];
const int elem_id = aac_channel_layout_map[chan_config-1][i][1];
for (i = 0; i < ff_tags_per_config[chan_config]; i++) {
const int elem_type = ff_aac_channel_layout_map[chan_config-1][i][0];
const int elem_id = ff_aac_channel_layout_map[chan_config-1][i][1];
if (!(che=get_che(ac, elem_type, elem_id))) {
av_log(ac->avctx, AV_LOG_ERROR,
"channel element %d.%d is not allocated\n",

95
libavcodec/aacdectab.h
View File

@ -1,7 +1,5 @@
/*
* AAC decoder data
* Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
* Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
*
* This file is part of FFmpeg.
*
@ -30,99 +28,20 @@
#ifndef AVCODEC_AACDECTAB_H
#define AVCODEC_AACDECTAB_H
#include "libavutil/channel_layout.h"
#include "aac.h"
#include <stdint.h>
static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 5, 5, 16, 5, 0 };
#include "libavutil/channel_layout.h"
static const uint8_t aac_channel_layout_map[16][16][3] = {
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, },
{ { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_FRONT }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
{ { 0, } },
{ { 0, } },
{ { 0, } },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
{
{ TYPE_SCE, 0, AAC_CHANNEL_FRONT }, // SCE1 = FC,
{ TYPE_CPE, 0, AAC_CHANNEL_FRONT }, // CPE1 = FLc and FRc,
{ TYPE_CPE, 1, AAC_CHANNEL_FRONT }, // CPE2 = FL and FR,
{ TYPE_CPE, 2, AAC_CHANNEL_BACK }, // CPE3 = SiL and SiR,
{ TYPE_CPE, 3, AAC_CHANNEL_BACK }, // CPE4 = BL and BR,
{ TYPE_SCE, 1, AAC_CHANNEL_BACK }, // SCE2 = BC,
{ TYPE_LFE, 0, AAC_CHANNEL_LFE }, // LFE1 = LFE1,
{ TYPE_LFE, 1, AAC_CHANNEL_LFE }, // LFE2 = LFE2,
{ TYPE_SCE, 2, AAC_CHANNEL_FRONT }, // SCE3 = TpFC,
{ TYPE_CPE, 4, AAC_CHANNEL_FRONT }, // CPE5 = TpFL and TpFR,
{ TYPE_CPE, 5, AAC_CHANNEL_SIDE }, // CPE6 = TpSiL and TpSiR,
{ TYPE_SCE, 3, AAC_CHANNEL_SIDE }, // SCE4 = TpC,
{ TYPE_CPE, 6, AAC_CHANNEL_BACK }, // CPE7 = TpBL and TpBR,
{ TYPE_SCE, 4, AAC_CHANNEL_BACK }, // SCE5 = TpBC,
{ TYPE_SCE, 5, AAC_CHANNEL_FRONT }, // SCE6 = BtFC,
{ TYPE_CPE, 7, AAC_CHANNEL_FRONT }, // CPE8 = BtFL and BtFR
},
{ { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, { TYPE_CPE, 2, AAC_CHANNEL_FRONT }, },
{ { 0, } },
};
extern const int8_t ff_tags_per_config[16];
static const int16_t aac_channel_map[3][4][6] = {
{
{ AV_CHAN_FRONT_CENTER, AV_CHAN_FRONT_LEFT_OF_CENTER, AV_CHAN_FRONT_RIGHT_OF_CENTER, AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT, AV_CHAN_NONE },
{ AV_CHAN_UNUSED, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
{ AV_CHAN_UNUSED, AV_CHAN_SIDE_LEFT, AV_CHAN_SIDE_RIGHT, AV_CHAN_BACK_LEFT, AV_CHAN_BACK_RIGHT, AV_CHAN_BACK_CENTER },
{ AV_CHAN_LOW_FREQUENCY, AV_CHAN_LOW_FREQUENCY_2, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
},
{
{ AV_CHAN_TOP_FRONT_CENTER, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_FRONT_LEFT, AV_CHAN_TOP_FRONT_RIGHT, AV_CHAN_NONE },
{ AV_CHAN_UNUSED, AV_CHAN_TOP_SIDE_LEFT, AV_CHAN_TOP_SIDE_RIGHT, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_CENTER},
{ AV_CHAN_UNUSED, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_BACK_LEFT, AV_CHAN_TOP_BACK_RIGHT, AV_CHAN_TOP_BACK_CENTER},
{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE},
},
{
{ AV_CHAN_BOTTOM_FRONT_CENTER, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_BOTTOM_FRONT_LEFT, AV_CHAN_BOTTOM_FRONT_RIGHT, AV_CHAN_NONE },
{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
{ AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE },
},
};
extern const uint8_t ff_aac_channel_layout_map[16][16][3];
extern const int16_t ff_aac_channel_map[3][4][6];
#if FF_API_OLD_CHANNEL_LAYOUT
static const uint64_t aac_channel_layout[] = {
AV_CH_LAYOUT_MONO,
AV_CH_LAYOUT_STEREO,
AV_CH_LAYOUT_SURROUND,
AV_CH_LAYOUT_4POINT0,
AV_CH_LAYOUT_5POINT0_BACK,
AV_CH_LAYOUT_5POINT1_BACK,
AV_CH_LAYOUT_7POINT1_WIDE_BACK,
AV_CH_LAYOUT_6POINT1_BACK,
AV_CH_LAYOUT_7POINT1,
AV_CH_LAYOUT_22POINT2,
AV_CH_LAYOUT_7POINT1_TOP_BACK,
0,
};
extern const uint64_t ff_aac_channel_layout[];
#endif
static const AVChannelLayout aac_ch_layout[] = {
AV_CHANNEL_LAYOUT_MONO,
AV_CHANNEL_LAYOUT_STEREO,
AV_CHANNEL_LAYOUT_SURROUND,
AV_CHANNEL_LAYOUT_4POINT0,
AV_CHANNEL_LAYOUT_5POINT0_BACK,
AV_CHANNEL_LAYOUT_5POINT1_BACK,
AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK,
AV_CHANNEL_LAYOUT_6POINT1_BACK,
AV_CHANNEL_LAYOUT_7POINT1,
AV_CHANNEL_LAYOUT_22POINT2,
AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK,
{ 0 },
};
extern const AVChannelLayout ff_aac_ch_layout[];
#endif /* AVCODEC_AACDECTAB_H */