mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
8a9eac7e42
A lot of the stuff in ASV1Context is actually only used by decoders or encoders, but not both: Of the seven contexts in ASV1Context, only the BswapDSPContext is used by both. So splitting makes sense. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
/*
|
|
* Copyright (c) 2003 Michael Niedermayer
|
|
*
|
|
* 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
|
|
* ASUS V1/V2 encoder/decoder common data
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "libavutil/attributes.h"
|
|
|
|
#include "asv.h"
|
|
#include "avcodec.h"
|
|
#include "bswapdsp.h"
|
|
|
|
const uint8_t ff_asv_scantab[64] = {
|
|
0x00, 0x08, 0x01, 0x09, 0x10, 0x18, 0x11, 0x19,
|
|
0x02, 0x0A, 0x03, 0x0B, 0x12, 0x1A, 0x13, 0x1B,
|
|
0x04, 0x0C, 0x05, 0x0D, 0x20, 0x28, 0x21, 0x29,
|
|
0x06, 0x0E, 0x07, 0x0F, 0x14, 0x1C, 0x15, 0x1D,
|
|
0x22, 0x2A, 0x23, 0x2B, 0x30, 0x38, 0x31, 0x39,
|
|
0x16, 0x1E, 0x17, 0x1F, 0x24, 0x2C, 0x25, 0x2D,
|
|
0x32, 0x3A, 0x33, 0x3B, 0x26, 0x2E, 0x27, 0x2F,
|
|
0x34, 0x3C, 0x35, 0x3D, 0x36, 0x3E, 0x37, 0x3F,
|
|
};
|
|
|
|
const uint8_t ff_asv_ccp_tab[17][2] = {
|
|
{ 0x2, 2 }, { 0x7, 5 }, { 0xB, 5 }, { 0x3, 5 },
|
|
{ 0xD, 5 }, { 0x5, 5 }, { 0x9, 5 }, { 0x1, 5 },
|
|
{ 0xE, 5 }, { 0x6, 5 }, { 0xA, 5 }, { 0x2, 5 },
|
|
{ 0xC, 5 }, { 0x4, 5 }, { 0x8, 5 }, { 0x3, 2 },
|
|
{ 0xF, 5 }, // EOB
|
|
};
|
|
|
|
const uint8_t ff_asv_level_tab[7][2] = {
|
|
{ 3, 4 }, { 3, 3 }, { 3, 2 }, { 0, 3 }, { 2, 2 }, { 2, 3 }, { 2, 4 }
|
|
};
|
|
|
|
const uint8_t ff_asv_dc_ccp_tab[8][2] = {
|
|
{ 0x2, 2 }, { 0xB, 4 }, { 0xF, 4 }, { 0x3, 4 },
|
|
{ 0x5, 3 }, { 0x7, 4 }, { 0x1, 3 }, { 0x0, 2 },
|
|
};
|
|
|
|
const uint8_t ff_asv_ac_ccp_tab[16][2] = {
|
|
{ 0x00, 2 }, { 0x37, 6 }, { 0x05, 4 }, { 0x17, 6 },
|
|
{ 0x02, 3 }, { 0x27, 6 }, { 0x0F, 6 }, { 0x07, 6 },
|
|
{ 0x06, 3 }, { 0x2F, 6 }, { 0x01, 4 }, { 0x1F, 5 },
|
|
{ 0x09, 4 }, { 0x0D, 4 }, { 0x0B, 4 }, { 0x03, 4 },
|
|
};
|
|
|
|
const uint16_t ff_asv2_level_tab[63][2] = {
|
|
{ 0x3F0, 10 }, { 0x3D0, 10 }, { 0x3B0, 10 }, { 0x390, 10 }, { 0x370, 10 },
|
|
{ 0x350, 10 }, { 0x330, 10 }, { 0x310, 10 }, { 0x2F0, 10 }, { 0x2D0, 10 },
|
|
{ 0x2B0, 10 }, { 0x290, 10 }, { 0x270, 10 }, { 0x250, 10 }, { 0x230, 10 },
|
|
{ 0x210, 10 },
|
|
{ 0x0F8, 8 }, { 0x0E8, 8 }, { 0x0D8, 8 }, { 0x0C8, 8 }, { 0x0B8, 8 },
|
|
{ 0x0A8, 8 }, { 0x098, 8 }, { 0x088, 8 },
|
|
{ 0x03C, 6 }, { 0x034, 6 }, { 0x02C, 6 }, { 0x024, 6 },
|
|
{ 0x00E, 4 }, { 0x00A, 4 },
|
|
{ 0x003, 2 },
|
|
{ 0x000, 5 },
|
|
{ 0x001, 2 },
|
|
{ 0x002, 4 }, { 0x006, 4 },
|
|
{ 0x004, 6 }, { 0x00C, 6 }, { 0x014, 6 }, { 0x01C, 6 },
|
|
{ 0x008, 8 }, { 0x018, 8 }, { 0x028, 8 }, { 0x038, 8 }, { 0x048, 8 },
|
|
{ 0x058, 8 }, { 0x068, 8 }, { 0x078, 8 },
|
|
{ 0x010, 10 }, { 0x030, 10 }, { 0x050, 10 }, { 0x070, 10 }, { 0x090, 10 },
|
|
{ 0x0B0, 10 }, { 0x0D0, 10 }, { 0x0F0, 10 }, { 0x110, 10 }, { 0x130, 10 },
|
|
{ 0x150, 10 }, { 0x170, 10 }, { 0x190, 10 }, { 0x1B0, 10 }, { 0x1D0, 10 },
|
|
{ 0x1F0, 10 }
|
|
};
|
|
|
|
av_cold void ff_asv_common_init(AVCodecContext *avctx)
|
|
{
|
|
ASVCommonContext *const a = avctx->priv_data;
|
|
|
|
ff_bswapdsp_init(&a->bbdsp);
|
|
|
|
a->mb_width = (avctx->width + 15) / 16;
|
|
a->mb_height = (avctx->height + 15) / 16;
|
|
a->mb_width2 = (avctx->width + 0) / 16;
|
|
a->mb_height2 = (avctx->height + 0) / 16;
|
|
|
|
a->avctx = avctx;
|
|
}
|