mirror of
https://github.com/hrydgard/ppsspp.git
synced 2026-11-01 20:18:15 +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>
152 lines
7.0 KiB
C
152 lines
7.0 KiB
C
/*
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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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#undef _GNU_SOURCE
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#define _XOPEN_SOURCE 600 /* XSI-compliant version of strerror_r */
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#include "avutil.h"
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#include "avstring.h"
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#include "common.h"
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struct error_entry {
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int num;
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const char *tag;
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const char *str;
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};
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#define ERROR_TAG(tag) AVERROR_##tag, #tag
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#define EERROR_TAG(tag) AVERROR(tag), #tag
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#define AVERROR_INPUT_AND_OUTPUT_CHANGED (AVERROR_INPUT_CHANGED | AVERROR_OUTPUT_CHANGED)
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static const struct error_entry error_entries[] = {
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{ ERROR_TAG(BSF_NOT_FOUND), "Bitstream filter not found" },
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{ ERROR_TAG(BUG), "Internal bug, should not have happened" },
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{ ERROR_TAG(BUG2), "Internal bug, should not have happened" },
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{ ERROR_TAG(BUFFER_TOO_SMALL), "Buffer too small" },
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{ ERROR_TAG(DECODER_NOT_FOUND), "Decoder not found" },
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{ ERROR_TAG(DEMUXER_NOT_FOUND), "Demuxer not found" },
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{ ERROR_TAG(ENCODER_NOT_FOUND), "Encoder not found" },
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{ ERROR_TAG(EOF), "End of file" },
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{ ERROR_TAG(EXIT), "Immediate exit requested" },
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{ ERROR_TAG(EXTERNAL), "Generic error in an external library" },
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{ ERROR_TAG(FILTER_NOT_FOUND), "Filter not found" },
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{ ERROR_TAG(INPUT_CHANGED), "Input changed" },
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{ ERROR_TAG(INVALIDDATA), "Invalid data found when processing input" },
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{ ERROR_TAG(MUXER_NOT_FOUND), "Muxer not found" },
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{ ERROR_TAG(OPTION_NOT_FOUND), "Option not found" },
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{ ERROR_TAG(OUTPUT_CHANGED), "Output changed" },
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{ ERROR_TAG(PATCHWELCOME), "Not yet implemented in FFmpeg, patches welcome" },
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{ ERROR_TAG(PROTOCOL_NOT_FOUND), "Protocol not found" },
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{ ERROR_TAG(STREAM_NOT_FOUND), "Stream not found" },
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{ ERROR_TAG(UNKNOWN), "Unknown error occurred" },
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{ ERROR_TAG(EXPERIMENTAL), "Experimental feature" },
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{ ERROR_TAG(INPUT_AND_OUTPUT_CHANGED), "Input and output changed" },
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{ ERROR_TAG(HTTP_BAD_REQUEST), "Server returned 400 Bad Request" },
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{ ERROR_TAG(HTTP_UNAUTHORIZED), "Server returned 401 Unauthorized (authorization failed)" },
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{ ERROR_TAG(HTTP_FORBIDDEN), "Server returned 403 Forbidden (access denied)" },
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{ ERROR_TAG(HTTP_NOT_FOUND), "Server returned 404 Not Found" },
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{ ERROR_TAG(HTTP_OTHER_4XX), "Server returned 4XX Client Error, but not one of 40{0,1,3,4}" },
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{ ERROR_TAG(HTTP_SERVER_ERROR), "Server returned 5XX Server Error reply" },
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#if !HAVE_STRERROR_R
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{ EERROR_TAG(E2BIG), "Argument list too long" },
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{ EERROR_TAG(EACCES), "Permission denied" },
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{ EERROR_TAG(EAGAIN), "Resource temporarily unavailable" },
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{ EERROR_TAG(EBADF), "Bad file descriptor" },
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{ EERROR_TAG(EBUSY), "Device or resource busy" },
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{ EERROR_TAG(ECHILD), "No child processes" },
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{ EERROR_TAG(EDEADLK), "Resource deadlock avoided" },
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{ EERROR_TAG(EDOM), "Numerical argument out of domain" },
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{ EERROR_TAG(EEXIST), "File exists" },
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{ EERROR_TAG(EFAULT), "Bad address" },
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{ EERROR_TAG(EFBIG), "File too large" },
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{ EERROR_TAG(EILSEQ), "Illegal byte sequence" },
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{ EERROR_TAG(EINTR), "Interrupted system call" },
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{ EERROR_TAG(EINVAL), "Invalid argument" },
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{ EERROR_TAG(EIO), "I/O error" },
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{ EERROR_TAG(EISDIR), "Is a directory" },
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{ EERROR_TAG(EMFILE), "Too many open files" },
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{ EERROR_TAG(EMLINK), "Too many links" },
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{ EERROR_TAG(ENAMETOOLONG), "File name too long" },
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{ EERROR_TAG(ENFILE), "Too many open files in system" },
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{ EERROR_TAG(ENODEV), "No such device" },
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{ EERROR_TAG(ENOENT), "No such file or directory" },
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{ EERROR_TAG(ENOEXEC), "Exec format error" },
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{ EERROR_TAG(ENOLCK), "No locks available" },
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{ EERROR_TAG(ENOMEM), "Cannot allocate memory" },
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{ EERROR_TAG(ENOSPC), "No space left on device" },
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{ EERROR_TAG(ENOSYS), "Function not implemented" },
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{ EERROR_TAG(ENOTDIR), "Not a directory" },
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{ EERROR_TAG(ENOTEMPTY), "Directory not empty" },
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{ EERROR_TAG(ENOTTY), "Inappropriate I/O control operation" },
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{ EERROR_TAG(ENXIO), "No such device or address" },
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{ EERROR_TAG(EPERM), "Operation not permitted" },
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{ EERROR_TAG(EPIPE), "Broken pipe" },
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{ EERROR_TAG(ERANGE), "Result too large" },
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{ EERROR_TAG(EROFS), "Read-only file system" },
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{ EERROR_TAG(ESPIPE), "Illegal seek" },
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{ EERROR_TAG(ESRCH), "No such process" },
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{ EERROR_TAG(EXDEV), "Cross-device link" },
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#endif
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};
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int av_strerror(int errnum, char *errbuf, size_t errbuf_size)
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{
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int ret = 0, i;
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const struct error_entry *entry = NULL;
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for (i = 0; i < FF_ARRAY_ELEMS(error_entries); i++) {
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if (errnum == error_entries[i].num) {
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entry = &error_entries[i];
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break;
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}
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}
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if (entry) {
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av_strlcpy(errbuf, entry->str, errbuf_size);
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} else {
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#if HAVE_STRERROR_R
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ret = AVERROR(strerror_r(AVUNERROR(errnum), errbuf, errbuf_size));
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#else
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ret = -1;
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#endif
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if (ret < 0)
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snprintf(errbuf, errbuf_size, "Error number %d occurred", errnum);
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}
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return ret;
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}
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#ifdef TEST
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#undef printf
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int main(void)
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{
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int i;
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for (i = 0; i < FF_ARRAY_ELEMS(error_entries); i++) {
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const struct error_entry *entry = &error_entries[i];
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printf("%d: %s [%s]\n", entry->num, av_err2str(entry->num), entry->tag);
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}
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for (i = 0; i < 256; i++) {
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printf("%d: %s\n", -i, av_err2str(-i));
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}
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return 0;
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}
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#endif /* TEST */
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