mirror of
https://github.com/hrydgard/ppsspp.git
synced 2026-11-02 20:42:29 +01:00
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>
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/*
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* Image format
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* Copyright (c) 2014 Michael Niedermayer
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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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#ifndef AVFORMAT_IMG2_H
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#define AVFORMAT_IMG2_H
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#include <stdint.h>
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#include "avformat.h"
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#include "libavutil/opt.h"
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#if HAVE_GLOB
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#include <glob.h>
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#endif
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enum PatternType {
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PT_GLOB_SEQUENCE,
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PT_GLOB,
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PT_SEQUENCE,
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PT_NONE,
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PT_DEFAULT
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};
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typedef struct VideoDemuxData {
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const AVClass *class; /**< Class for private options. */
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int img_first;
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int img_last;
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int img_number;
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int64_t pts;
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int img_count;
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int is_pipe;
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int split_planes; /**< use independent file for each Y, U, V plane */
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char path[1024];
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char *pixel_format; /**< Set by a private option. */
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int width, height; /**< Set by a private option. */
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AVRational framerate; /**< Set by a private option. */
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int loop;
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int pattern_type; /**< PatternType */
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int use_glob;
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#if HAVE_GLOB
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glob_t globstate;
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#endif
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int start_number;
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int start_number_range;
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int frame_size;
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int ts_from_file;
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} VideoDemuxData;
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typedef struct IdStrMap {
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enum AVCodecID id;
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const char *str;
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} IdStrMap;
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extern const IdStrMap ff_img_tags[];
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extern const AVOption ff_img_options[];
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int ff_img_read_header(AVFormatContext *s1);
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int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt);
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#endif
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