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>
153 lines
3.6 KiB
C
153 lines
3.6 KiB
C
/*
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* Copyright (c) 2013 Vittorio Giovara <vittorio.giovara@gmail.com>
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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 AVUTIL_STEREO3D_H
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#define AVUTIL_STEREO3D_H
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#include <stdint.h>
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#include "frame.h"
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/**
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* List of possible 3D Types
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*/
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enum AVStereo3DType {
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/**
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* Video is not stereoscopic (and metadata has to be there).
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*/
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AV_STEREO3D_2D,
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/**
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* Views are next to each other.
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*
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* LLLLRRRR
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* LLLLRRRR
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* LLLLRRRR
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* ...
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*/
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AV_STEREO3D_SIDEBYSIDE,
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/**
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* Views are on top of each other.
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*
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* LLLLLLLL
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* LLLLLLLL
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* RRRRRRRR
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* RRRRRRRR
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*/
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AV_STEREO3D_TOPBOTTOM,
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/**
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* Views are alternated temporally.
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*
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* frame0 frame1 frame2 ...
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* LLLLLLLL RRRRRRRR LLLLLLLL
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* LLLLLLLL RRRRRRRR LLLLLLLL
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* LLLLLLLL RRRRRRRR LLLLLLLL
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* ... ... ...
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*/
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AV_STEREO3D_FRAMESEQUENCE,
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/**
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* Views are packed in a checkerboard-like structure per pixel.
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*
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* LRLRLRLR
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* RLRLRLRL
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* LRLRLRLR
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* ...
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*/
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AV_STEREO3D_CHECKERBOARD,
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/**
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* Views are next to each other, but when upscaling
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* apply a checkerboard pattern.
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*
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* LLLLRRRR L L L L R R R R
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* LLLLRRRR => L L L L R R R R
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* LLLLRRRR L L L L R R R R
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* LLLLRRRR L L L L R R R R
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*/
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AV_STEREO3D_SIDEBYSIDE_QUINCUNX,
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/**
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* Views are packed per line, as if interlaced.
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*
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* LLLLLLLL
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* RRRRRRRR
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* LLLLLLLL
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* ...
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*/
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AV_STEREO3D_LINES,
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/**
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* Views are packed per column.
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*
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* LRLRLRLR
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* LRLRLRLR
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* LRLRLRLR
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* ...
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*/
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AV_STEREO3D_COLUMNS,
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};
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/**
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* Inverted views, Right/Bottom represents the left view.
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*/
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#define AV_STEREO3D_FLAG_INVERT (1 << 0)
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/**
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* Stereo 3D type: this structure describes how two videos are packed
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* within a single video surface, with additional information as needed.
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*
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* @note The struct must be allocated with av_stereo3d_alloc() and
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* its size is not a part of the public ABI.
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*/
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typedef struct AVStereo3D {
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/**
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* How views are packed within the video.
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*/
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enum AVStereo3DType type;
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/**
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* Additional information about the frame packing.
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*/
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int flags;
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} AVStereo3D;
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/**
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* Allocate an AVStereo3D structure and set its fields to default values.
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* The resulting struct can be freed using av_freep().
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*
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* @return An AVStereo3D filled with default values or NULL on failure.
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*/
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AVStereo3D *av_stereo3d_alloc(void);
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/**
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* Allocate a complete AVFrameSideData and add it to the frame.
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*
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* @param frame The frame which side data is added to.
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*
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* @return The AVStereo3D structure to be filled by caller.
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*/
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AVStereo3D *av_stereo3d_create_side_data(AVFrame *frame);
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#endif /* AVUTIL_STEREO3D_H */
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