mirror of
https://github.com/hrydgard/ppsspp.git
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Henrik RydgårdandClaude Opus 5.5
d0e3141f43
The ffmpeg submodule held prebuilt libraries for every platform next to the sources (about 1.5 GB checked out), and nothing uses those any more. Only the needed sources are copied in, from the submodule's commit, along with every header and template they include. The path is new, so checking out commits on either side of this works. It's also cut down to what PPSSPP uses: the H.264, AAC, MP3, ATRAC3 and ATRAC3+ decoders, the H.264 parser, the demuxers as before, and the FFV1 encoder, AVI muxer and file protocol for AVI dumping. config.h takes its CONFIG_ values from FFmpeg 3.0.2's own configure run with just those enabled. The raw H.264 demuxer stays even though nothing opens raw H.264: probing PSMF data uses it to identify the video stream's codec, which otherwise comes out as none. On top of that: - The files nothing links (configure would build them, but they're never pulled out of the static library, going by the GCC link map) are left out: mostly libavutil's crypto and hashing and the alternative DCT/IDCT/FFT versions. - libswresample isn't built, now that nothing uses it. - The H.264 decoder only does 8-bit video, which is all the PSP has. The SPS parser rejects any other bit depth, and the DSP files no longer build their 9- to 16-bit variants, which the linker kept because the init functions pick one by bit depth at run time. That's 160 files to compile instead of 277, and 391 of FFmpeg's vendored, about 5.8 MB. The README in ext/ffmpeg has what was done, the PPSSPP patches in the copy, how to add a component, and the tradeoffs. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
190 lines
7.7 KiB
C
190 lines
7.7 KiB
C
/*
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* H26L/H264/AVC/JVT/14496-10/... encoder/decoder
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* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* @brief
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* H264 / AVC / MPEG4 part10 codec data table
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* @author Michael Niedermayer <michaelni@gmx.at>
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*/
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#ifndef AVCODEC_H264DATA_H
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#define AVCODEC_H264DATA_H
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#include <stdint.h>
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#include "libavutil/rational.h"
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#include "h264.h"
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static const uint8_t golomb_to_pict_type[5] = {
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AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, AV_PICTURE_TYPE_I,
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AV_PICTURE_TYPE_SP, AV_PICTURE_TYPE_SI
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};
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static const uint8_t golomb_to_intra4x4_cbp[48] = {
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47, 31, 15, 0, 23, 27, 29, 30, 7, 11, 13, 14, 39, 43, 45, 46,
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16, 3, 5, 10, 12, 19, 21, 26, 28, 35, 37, 42, 44, 1, 2, 4,
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8, 17, 18, 20, 24, 6, 9, 22, 25, 32, 33, 34, 36, 40, 38, 41
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};
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static const uint8_t golomb_to_inter_cbp[48] = {
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0, 16, 1, 2, 4, 8, 32, 3, 5, 10, 12, 15, 47, 7, 11, 13,
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14, 6, 9, 31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46,
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17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41
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};
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static const uint8_t zigzag_scan[16+1] = {
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0 + 0 * 4, 1 + 0 * 4, 0 + 1 * 4, 0 + 2 * 4,
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1 + 1 * 4, 2 + 0 * 4, 3 + 0 * 4, 2 + 1 * 4,
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1 + 2 * 4, 0 + 3 * 4, 1 + 3 * 4, 2 + 2 * 4,
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3 + 1 * 4, 3 + 2 * 4, 2 + 3 * 4, 3 + 3 * 4,
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};
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static const uint8_t chroma_dc_scan[4] = {
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(0 + 0 * 2) * 16, (1 + 0 * 2) * 16,
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(0 + 1 * 2) * 16, (1 + 1 * 2) * 16,
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};
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static const uint8_t chroma422_dc_scan[8] = {
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(0 + 0 * 2) * 16, (0 + 1 * 2) * 16,
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(1 + 0 * 2) * 16, (0 + 2 * 2) * 16,
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(0 + 3 * 2) * 16, (1 + 1 * 2) * 16,
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(1 + 2 * 2) * 16, (1 + 3 * 2) * 16,
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};
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typedef struct IMbInfo {
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uint16_t type;
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uint8_t pred_mode;
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uint8_t cbp;
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} IMbInfo;
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static const IMbInfo i_mb_type_info[26] = {
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{ MB_TYPE_INTRA4x4, -1, -1 },
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{ MB_TYPE_INTRA16x16, 2, 0 },
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{ MB_TYPE_INTRA16x16, 1, 0 },
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{ MB_TYPE_INTRA16x16, 0, 0 },
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{ MB_TYPE_INTRA16x16, 3, 0 },
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{ MB_TYPE_INTRA16x16, 2, 16 },
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{ MB_TYPE_INTRA16x16, 1, 16 },
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{ MB_TYPE_INTRA16x16, 0, 16 },
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{ MB_TYPE_INTRA16x16, 3, 16 },
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{ MB_TYPE_INTRA16x16, 2, 32 },
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{ MB_TYPE_INTRA16x16, 1, 32 },
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{ MB_TYPE_INTRA16x16, 0, 32 },
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{ MB_TYPE_INTRA16x16, 3, 32 },
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{ MB_TYPE_INTRA16x16, 2, 15 + 0 },
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{ MB_TYPE_INTRA16x16, 1, 15 + 0 },
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{ MB_TYPE_INTRA16x16, 0, 15 + 0 },
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{ MB_TYPE_INTRA16x16, 3, 15 + 0 },
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{ MB_TYPE_INTRA16x16, 2, 15 + 16 },
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{ MB_TYPE_INTRA16x16, 1, 15 + 16 },
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{ MB_TYPE_INTRA16x16, 0, 15 + 16 },
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{ MB_TYPE_INTRA16x16, 3, 15 + 16 },
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{ MB_TYPE_INTRA16x16, 2, 15 + 32 },
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{ MB_TYPE_INTRA16x16, 1, 15 + 32 },
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{ MB_TYPE_INTRA16x16, 0, 15 + 32 },
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{ MB_TYPE_INTRA16x16, 3, 15 + 32 },
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{ MB_TYPE_INTRA_PCM, -1, -1 },
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};
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typedef struct PMbInfo {
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uint16_t type;
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uint8_t partition_count;
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} PMbInfo;
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static const PMbInfo p_mb_type_info[5] = {
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{ MB_TYPE_16x16 | MB_TYPE_P0L0, 1 },
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{ MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2 },
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{ MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2 },
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{ MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 4 },
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{ MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_REF0, 4 },
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};
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static const PMbInfo p_sub_mb_type_info[4] = {
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{ MB_TYPE_16x16 | MB_TYPE_P0L0, 1 },
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{ MB_TYPE_16x8 | MB_TYPE_P0L0, 2 },
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{ MB_TYPE_8x16 | MB_TYPE_P0L0, 2 },
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{ MB_TYPE_8x8 | MB_TYPE_P0L0, 4 },
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};
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static const PMbInfo b_mb_type_info[23] = {
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{ MB_TYPE_DIRECT2 | MB_TYPE_L0L1, 1, },
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{ MB_TYPE_16x16 | MB_TYPE_P0L0, 1, },
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{ MB_TYPE_16x16 | MB_TYPE_P0L1, 1, },
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{ MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1, 1, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L1 | MB_TYPE_P1L0, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L1 | MB_TYPE_P1L0, 2, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0, 2, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 4, },
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};
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static const PMbInfo b_sub_mb_type_info[13] = {
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{ MB_TYPE_DIRECT2, 1, },
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{ MB_TYPE_16x16 | MB_TYPE_P0L0, 1, },
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{ MB_TYPE_16x16 | MB_TYPE_P0L1, 1, },
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{ MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1, 1, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
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{ MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 4, },
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{ MB_TYPE_8x8 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 4, },
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{ MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 4, },
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};
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static const AVRational ff_h264_pixel_aspect[17] = {
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{ 0, 1 },
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{ 1, 1 },
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{ 12, 11 },
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{ 10, 11 },
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{ 16, 11 },
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{ 40, 33 },
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{ 24, 11 },
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{ 20, 11 },
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{ 32, 11 },
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{ 80, 33 },
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{ 18, 11 },
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{ 15, 11 },
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{ 64, 33 },
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{ 160, 99 },
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{ 4, 3 },
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{ 3, 2 },
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{ 2, 1 },
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};
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#endif /* AVCODEC_H264DATA_H */
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