diff --git a/.gitignore b/.gitignore index 92ac52b..0162613 100644 --- a/.gitignore +++ b/.gitignore @@ -20,3 +20,4 @@ build lib/linux-x86_64 +/ffmpeg-audio/.qtcreator diff --git a/ffmpeg-audio/CMakeLists.txt b/ffmpeg-audio/CMakeLists.txt new file mode 100644 index 0000000..7080a2a --- /dev/null +++ b/ffmpeg-audio/CMakeLists.txt @@ -0,0 +1,29 @@ +cmake_minimum_required(VERSION 3.14) + +project(ffmpeg_audio LANGUAGES C CXX) + +set(CMAKE_CXX_STANDARD 17) +set(CMAKE_CXX_STANDARD_REQUIRED ON) + +add_library(ffmpeg_audio SHARED + ffmpeg_audio.cpp + ffmpeg_audio.h +) + +add_executable(demo_ffmpeg_audio + demo_ffmpeg_audio.c +) + +if(WIN32) + set(FFMPEG_LIB ${CMAKE_CURRENT_SOURCE_DIR}/ffmpeg-win/lib) + set(FFMPEG_INC ${CMAKE_CURRENT_SOURCE_DIR}/ffmpeg-win/include) + include_directories(${FFMPEG_INC}) + target_link_directories(ffmpeg_audio PRIVATE ${FFMPEG_LIB}) + set(FFMPEG_LIBRARIES avcodec.lib avformat.lib swresample.lib avutil.lib avdevice.lib avfilter.lib swscale.lib) + target_link_directories(demo_ffmpeg_audio PRIVATE ${FFMPEG_LIB}) +endif() + +target_link_libraries(ffmpeg_audio PRIVATE ${FFMPEG_LIBRARIES}) +target_compile_definitions(ffmpeg_audio PRIVATE LIB_COMPILE) + +target_link_Libraries(demo_ffmpeg_audio PRIVATE ffmpeg_audio ${FFMPEG_LIBRARIES}) diff --git a/ffmpeg-audio/demo_ffmpeg_audio.c b/ffmpeg-audio/demo_ffmpeg_audio.c new file mode 100644 index 0000000..e49cd46 --- /dev/null +++ b/ffmpeg-audio/demo_ffmpeg_audio.c @@ -0,0 +1,207 @@ +#include "ffmpeg_audio.h" + +#include +#include +#include +#include + +#ifdef WIN32 +#define fprintf fprintf_s +#endif + +static void write_u16_le(FILE *f, uint16_t v) { + fputc((int)(v & 0xff), f); + fputc((int)((v >> 8) & 0xff), f); +} + +static void write_u32_le(FILE *f, uint32_t v) { + fputc((int)(v & 0xff), f); + fputc((int)((v >> 8) & 0xff), f); + fputc((int)((v >> 16) & 0xff), f); + fputc((int)((v >> 24) & 0xff), f); +} + +static int write_wav_header(FILE *f, + int sample_rate, + int channels, + int bits_per_sample, + uint32_t data_size) { + uint32_t byte_rate = + (uint32_t)(sample_rate * channels * bits_per_sample / 8); + uint16_t block_align = + (uint16_t)(channels * bits_per_sample / 8); + + fwrite("RIFF", 1, 4, f); + write_u32_le(f, 36 + data_size); + fwrite("WAVE", 1, 4, f); + + fwrite("fmt ", 1, 4, f); + write_u32_le(f, 16); /* fmt chunk size */ + write_u16_le(f, 1); /* PCM */ + write_u16_le(f, (uint16_t)channels); + write_u32_le(f, (uint32_t)sample_rate); + write_u32_le(f, byte_rate); + write_u16_le(f, block_align); + write_u16_le(f, (uint16_t)bits_per_sample); + + fwrite("data", 1, 4, f); + write_u32_le(f, data_size); + + return ferror(f) ? 0 : 1; +} + +static int rewrite_wav_header(FILE *f, + int sample_rate, + int channels, + int bits_per_sample, + uint32_t data_size) { + if (fseek(f, 0, SEEK_SET) != 0) { + return 0; + } + + return write_wav_header(f, + sample_rate, + channels, + bits_per_sample, + data_size); +} + +int main(int argc, char **argv) { + const char *infile; + const char *outfile; + + fmpg_instance * ac = NULL; + fmpg_decoder * dec = NULL; + FILE *out = NULL; + + int stream; + fmpg_audio_info info; + uint64_t total_written = 0; + + if (argc != 3) { + fprintf(stderr, "usage: %s input-audio output.wav\n", argv[0]); + return 1; + } + + infile = argv[1]; + outfile = argv[2]; + + ac = ac_init(); + if (!ac) { + fprintf(stderr, "ac_init failed\n"); + return 1; + } + + if (!ac_open_file(ac, infile)) { + fprintf(stderr, "could not open input file: %s\n", infile); + ac_free(ac); + return 1; + } + + stream = ac_get_default_audio_stream(ac); + if (stream < 0) { + fprintf(stderr, "no audio stream found\n"); + ac_free(ac); + return 1; + } + + memset(&info, 0, sizeof(info)); + if (!ac_get_audio_info(ac, stream, &info)) { + fprintf(stderr, "could not get audio info\n"); + ac_free(ac); + return 1; + } + + dec = ac_create_decoder(ac, stream); + if (!dec) { + fprintf(stderr, "could not create decoder\n"); + ac_free(ac); + return 1; + } + + out = fopen(outfile, "wb"); + if (!out) { + fprintf(stderr, "could not open output file: %s\n", outfile); + ac_free_decoder(dec); + ac_free(ac); + return 1; + } + + /* + * We do not know the final WAV data size yet. + * Write a placeholder header first and patch it at the end. + */ + if (!write_wav_header(out, + info.sample_rate, + info.channels, + 32, + 0)) { + fprintf(stderr, "could not write WAV header\n"); + fclose(out); + ac_free_decoder(dec); + ac_free(ac); + return 1; + } + + for (;;) { + fmpg_package * pkg = ac_read_package(ac); + + if (!pkg) { + break; + } + + if (ac_package_stream_index(pkg) == stream) { + if (ac_decode_package(pkg, dec)) { + const uint8_t *buf = ac_decoder_buffer(dec); + int size = ac_decoder_buffer_size(dec); + + if (buf && size > 0) { + fwrite(buf, 1, (size_t)size, out); + total_written += (uint64_t)size; + } + } + } + + ac_free_package(pkg); + } + + /* + * Drain delayed samples from the decoder and resampler. + */ + while (ac_flush_decoder(dec)) { + const uint8_t *buf = ac_decoder_buffer(dec); + int size = ac_decoder_buffer_size(dec); + + if (buf && size > 0) { + fwrite(buf, 1, (size_t)size, out); + total_written += (uint64_t)size; + } + } + + if (total_written > 0xffffffffu) { + fprintf(stderr, + "warning: WAV data larger than 4GB; classic WAV header " + "will overflow\n"); + } + + if (!rewrite_wav_header(out, + info.sample_rate, + info.channels, + 32, + (uint32_t)total_written)) { + fprintf(stderr, "could not rewrite WAV header\n"); + } + + fclose(out); + ac_free_decoder(dec); + ac_free(ac); + + printf("wrote %s\n", outfile); + printf("sample rate: %d\n", info.sample_rate); + printf("channels: %d\n", info.channels); + printf("sample bits: %d\n", 32); + printf("data bytes: %llu\n", + (unsigned long long)total_written); + + return 0; +} diff --git a/ffmpeg-audio/ffmpeg-win/LICENSE b/ffmpeg-audio/ffmpeg-win/LICENSE new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/ffmpeg-audio/ffmpeg-win/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/ffmpeg-audio/ffmpeg-win/README.txt b/ffmpeg-audio/ffmpeg-win/README.txt new file mode 100644 index 0000000..c1511e6 --- /dev/null +++ b/ffmpeg-audio/ffmpeg-win/README.txt @@ -0,0 +1,914 @@ +FFmpeg 64-bit shared Windows build from www.gyan.dev + +Version: 8.1-full_build-www.gyan.dev + +License: GPL v3 + +Source Code: https://github.com/FFmpeg/FFmpeg/commit/9047fa1b08 + +External Assets +frei0r plugins: https://www.gyan.dev/ffmpeg/builds/ffmpeg-frei0r-plugins +lensfun database: https://www.gyan.dev/ffmpeg/builds/ffmpeg-lensfun-db +whisper models: https://huggingface.co/ggerganov/whisper.cpp/tree/main + +release-full build configuration: + +ARCH x86 (generic) +big-endian no +runtime cpu detection yes +standalone assembly yes +x86 assembler nasm +MMX enabled yes +MMXEXT enabled yes +SSE enabled yes +SSSE3 enabled yes +AESNI enabled yes +CLMUL enabled yes +AVX enabled yes +AVX2 enabled yes +AVX-512 enabled yes +AVX-512ICL enabled yes +XOP enabled yes +FMA3 enabled yes +FMA4 enabled yes +i686 features enabled yes +CMOV is fast yes +EBX available yes +EBP available yes +debug symbols yes +strip symbols yes +optimize for size no +optimizations yes +static no +shared yes +network support yes +threading support pthreads +safe bitstream reader yes +texi2html enabled no +perl enabled yes +pod2man enabled yes +makeinfo enabled yes +makeinfo supports HTML yes +experimental features yes +xmllint enabled yes + +External libraries: +avisynth libgsm libsvtav1 +bzlib libharfbuzz libsvtjpegxs +cairo libilbc libtheora +chromaprint libjxl libtwolame +frei0r liblc3 libuavs3d +gmp liblensfun libvidstab +gnutls libmodplug libvmaf +iconv libmp3lame libvo_amrwbenc +ladspa libmysofa libvorbis +lcms2 liboapv libvpx +libaom libopencore_amrnb libvvenc +libaribb24 libopencore_amrwb libwebp +libaribcaption libopenjpeg libx264 +libass libopenmpt libx265 +libbluray libopus libxavs2 +libbs2b libplacebo libxevd +libcaca libqrencode libxeve +libcdio libquirc libxml2 +libcodec2 librav1e libxvid +libdav1d librist libzimg +libdavs2 librubberband libzmq +libdvdnav libshaderc libzvbi +libdvdread libshine lzma +libflite libsnappy mediafoundation +libfontconfig libsoxr openal +libfreetype libspeex sdl2 +libfribidi libsrt whisper +libgme libssh zlib + +External libraries providing hardware acceleration: +amf d3d12va nvdec +cuda dxva2 nvenc +cuda_llvm ffnvcodec opencl +cuvid libmfx vaapi +d3d11va libvpl vulkan + +Libraries: +avcodec avformat swscale +avdevice avutil +avfilter swresample + +Programs: +ffmpeg ffplay ffprobe + +Enabled decoders: +aac fmvc pcm_u32be +aac_fixed fourxm pcm_u32le +aac_latm fraps pcm_u8 +aasc frwu pcm_vidc +ac3 ftr pcx +ac3_fixed g2m pdv +acelp_kelvin g723_1 pfm +adpcm_4xm g728 pgm +adpcm_adx g729 pgmyuv +adpcm_afc gdv pgssub +adpcm_agm gem pgx +adpcm_aica gif phm +adpcm_argo gremlin_dpcm photocd +adpcm_circus gsm pictor +adpcm_ct gsm_ms pixlet +adpcm_dtk h261 pjs +adpcm_ea h263 png +adpcm_ea_maxis_xa h263i ppm +adpcm_ea_r1 h263p prores +adpcm_ea_r2 h264 prores_raw +adpcm_ea_r3 h264_amf prosumer +adpcm_ea_xas h264_cuvid psd +adpcm_g722 h264_qsv ptx +adpcm_g726 hap qcelp +adpcm_g726le hca qdm2 +adpcm_ima_acorn hcom qdmc +adpcm_ima_alp hdr qdraw +adpcm_ima_amv hevc qoa +adpcm_ima_apc hevc_amf qoi +adpcm_ima_apm hevc_cuvid qpeg +adpcm_ima_cunning hevc_qsv qtrle +adpcm_ima_dat4 hnm4_video r10k +adpcm_ima_dk3 hq_hqa r210 +adpcm_ima_dk4 hqx ra_144 +adpcm_ima_ea_eacs huffyuv ra_288 +adpcm_ima_ea_sead hymt ralf +adpcm_ima_escape iac rasc +adpcm_ima_hvqm2 idcin rawvideo +adpcm_ima_hvqm4 idf realtext +adpcm_ima_iss iff_ilbm rka +adpcm_ima_magix ilbc rl2 +adpcm_ima_moflex imc roq +adpcm_ima_mtf imm4 roq_dpcm +adpcm_ima_oki imm5 rpza +adpcm_ima_pda indeo2 rscc +adpcm_ima_qt indeo3 rtv1 +adpcm_ima_rad indeo4 rv10 +adpcm_ima_smjpeg indeo5 rv20 +adpcm_ima_ssi interplay_acm rv30 +adpcm_ima_wav interplay_dpcm rv40 +adpcm_ima_ws interplay_video rv60 +adpcm_ima_xbox ipu s302m +adpcm_ms jacosub sami +adpcm_mtaf jpeg2000 sanm +adpcm_n64 jpegls sbc +adpcm_psx jv scpr +adpcm_psxc kgv1 screenpresso +adpcm_sanyo kmvc sdx2_dpcm +adpcm_sbpro_2 lagarith sga +adpcm_sbpro_3 lead sgi +adpcm_sbpro_4 libaom_av1 sgirle +adpcm_swf libaribb24 sheervideo +adpcm_thp libaribcaption shorten +adpcm_thp_le libcodec2 simbiosis_imx +adpcm_vima libdav1d sipr +adpcm_xa libdavs2 siren +adpcm_xmd libgsm smackaud +adpcm_yamaha libgsm_ms smacker +adpcm_zork libilbc smc +agm libjxl smvjpeg +ahx libjxl_anim snow +aic liblc3 sol_dpcm +alac libopencore_amrnb sonic +alias_pix libopencore_amrwb sp5x +als libopus speedhq +amrnb libspeex speex +amrwb libsvtjpegxs srgc +amv libuavs3d srt +anm libvorbis ssa +ansi libvpx_vp8 stl +anull libvpx_vp9 subrip +apac libxevd subviewer +ape libzvbi_teletext subviewer1 +apng loco sunrast +aptx lscr svq1 +aptx_hd m101 svq3 +apv mace3 tak +arbc mace6 targa +argo magicyuv targa_y216 +ass mdec tdsc +asv1 media100 text +asv2 metasound theora +atrac1 microdvd thp +atrac3 mimic tiertexseqvideo +atrac3al misc4 tiff +atrac3p mjpeg tmv +atrac3pal mjpeg_cuvid truehd +atrac9 mjpeg_qsv truemotion1 +aura mjpegb truemotion2 +aura2 mlp truemotion2rt +av1 mmvideo truespeech +av1_amf mobiclip tscc +av1_cuvid motionpixels tscc2 +av1_qsv movtext tta +avrn mp1 twinvq +avrp mp1float txd +avs mp2 ulti +avui mp2float utvideo +bethsoftvid mp3 v210 +bfi mp3adu v210x +bink mp3adufloat v308 +binkaudio_dct mp3float v408 +binkaudio_rdft mp3on4 v410 +bintext mp3on4float vb +bitpacked mpc7 vble +bmp mpc8 vbn +bmv_audio mpeg1_cuvid vc1 +bmv_video mpeg1video vc1_cuvid +bonk mpeg2_cuvid vc1_qsv +brender_pix mpeg2_qsv vc1image +c93 mpeg2video vcr1 +cavs mpeg4 vmdaudio +cbd2_dpcm mpeg4_cuvid vmdvideo +ccaption mpegvideo vmix +cdgraphics mpl2 vmnc +cdtoons msa1 vnull +cdxl mscc vorbis +cfhd msmpeg4v1 vp3 +cinepak msmpeg4v2 vp4 +clearvideo msmpeg4v3 vp5 +cljr msnsiren vp6 +cllc msp2 vp6a +comfortnoise msrle vp6f +cook mss1 vp7 +cpia mss2 vp8 +cri msvideo1 vp8_cuvid +cscd mszh vp8_qsv +cyuv mts2 vp9 +dca mv30 vp9_amf +dds mvc1 vp9_cuvid +derf_dpcm mvc2 vp9_qsv +dfa mvdv vplayer +dfpwm mvha vqa +dirac mwsc vqc +dnxhd mxpeg vvc +dolby_e nellymoser vvc_qsv +dpx notchlc wady_dpcm +dsd_lsbf nuv wavarc +dsd_lsbf_planar on2avc wavpack +dsd_msbf opus wbmp +dsd_msbf_planar osq wcmv +dsicinaudio paf_audio webp +dsicinvideo paf_video webvtt +dss_sp pam wmalossless +dst pbm wmapro +dvaudio pcm_alaw wmav1 +dvbsub pcm_bluray wmav2 +dvdsub pcm_dvd wmavoice +dvvideo pcm_f16le wmv1 +dxa pcm_f24le wmv2 +dxtory pcm_f32be wmv3 +dxv pcm_f32le wmv3image +eac3 pcm_f64be wnv1 +eacmv pcm_f64le wrapped_avframe +eamad pcm_lxf ws_snd1 +eatgq pcm_mulaw xan_dpcm +eatgv pcm_s16be xan_wc3 +eatqi pcm_s16be_planar xan_wc4 +eightbps pcm_s16le xbin +eightsvx_exp pcm_s16le_planar xbm +eightsvx_fib pcm_s24be xface +escape124 pcm_s24daud xl +escape130 pcm_s24le xma1 +evrc pcm_s24le_planar xma2 +exr pcm_s32be xpm +fastaudio pcm_s32le xsub +ffv1 pcm_s32le_planar xwd +ffvhuff pcm_s64be y41p +ffwavesynth pcm_s64le ylc +fic pcm_s8 yop +fits pcm_s8_planar yuv4 +flac pcm_sga zero12v +flashsv pcm_u16be zerocodec +flashsv2 pcm_u16le zlib +flic pcm_u24be zmbv +flv pcm_u24le + +Enabled encoders: +a64multi hevc_mf pcm_s32le +a64multi5 hevc_nvenc pcm_s32le_planar +aac hevc_qsv pcm_s64be +aac_mf hevc_vaapi pcm_s64le +ac3 hevc_vulkan pcm_s8 +ac3_fixed huffyuv pcm_s8_planar +ac3_mf jpeg2000 pcm_u16be +adpcm_adx jpegls pcm_u16le +adpcm_argo libaom_av1 pcm_u24be +adpcm_g722 libcodec2 pcm_u24le +adpcm_g726 libgsm pcm_u32be +adpcm_g726le libgsm_ms pcm_u32le +adpcm_ima_alp libilbc pcm_u8 +adpcm_ima_amv libjxl pcm_vidc +adpcm_ima_apm libjxl_anim pcx +adpcm_ima_qt liblc3 pfm +adpcm_ima_ssi libmp3lame pgm +adpcm_ima_wav liboapv pgmyuv +adpcm_ima_ws libopencore_amrnb phm +adpcm_ms libopenjpeg png +adpcm_swf libopus ppm +adpcm_yamaha librav1e prores +alac libshine prores_aw +alias_pix libspeex prores_ks +amv libsvtav1 prores_ks_vulkan +anull libsvtjpegxs qoi +apng libtheora qtrle +aptx libtwolame r10k +aptx_hd libvo_amrwbenc r210 +ass libvorbis ra_144 +asv1 libvpx_vp8 rawvideo +asv2 libvpx_vp9 roq +av1_amf libvvenc roq_dpcm +av1_d3d12va libwebp rpza +av1_mf libwebp_anim rv10 +av1_nvenc libx264 rv20 +av1_qsv libx264rgb s302m +av1_vaapi libx265 sbc +av1_vulkan libxavs2 sgi +avrp libxeve smc +avui libxvid snow +bitpacked ljpeg speedhq +bmp magicyuv srt +cfhd mjpeg ssa +cinepak mjpeg_qsv subrip +cljr mjpeg_vaapi sunrast +comfortnoise mlp svq1 +dca movtext targa +dfpwm mp2 text +dnxhd mp2fixed tiff +dpx mp3_mf truehd +dvbsub mpeg1video tta +dvdsub mpeg2_qsv ttml +dvvideo mpeg2_vaapi utvideo +dxv mpeg2video v210 +eac3 mpeg4 v308 +exr msmpeg4v2 v408 +ffv1 msmpeg4v3 v410 +ffv1_vulkan msrle vbn +ffvhuff msvideo1 vc2 +fits nellymoser vnull +flac opus vorbis +flashsv pam vp8_vaapi +flashsv2 pbm vp9_qsv +flv pcm_alaw vp9_vaapi +g723_1 pcm_bluray wavpack +gif pcm_dvd wbmp +h261 pcm_f32be webvtt +h263 pcm_f32le wmav1 +h263p pcm_f64be wmav2 +h264_amf pcm_f64le wmv1 +h264_d3d12va pcm_mulaw wmv2 +h264_mf pcm_s16be wrapped_avframe +h264_nvenc pcm_s16be_planar xbm +h264_qsv pcm_s16le xface +h264_vaapi pcm_s16le_planar xsub +h264_vulkan pcm_s24be xwd +hap pcm_s24daud y41p +hdr pcm_s24le yuv4 +hevc_amf pcm_s24le_planar zlib +hevc_d3d12va pcm_s32be zmbv + +Enabled hwaccels: +av1_d3d11va hevc_dxva2 vc1_dxva2 +av1_d3d11va2 hevc_nvdec vc1_nvdec +av1_d3d12va hevc_vaapi vc1_vaapi +av1_dxva2 hevc_vulkan vp8_nvdec +av1_nvdec mjpeg_nvdec vp8_vaapi +av1_vaapi mjpeg_vaapi vp9_d3d11va +av1_vulkan mpeg1_nvdec vp9_d3d11va2 +dpx_vulkan mpeg2_d3d11va vp9_d3d12va +ffv1_vulkan mpeg2_d3d11va2 vp9_dxva2 +h263_vaapi mpeg2_d3d12va vp9_nvdec +h264_d3d11va mpeg2_dxva2 vp9_vaapi +h264_d3d11va2 mpeg2_nvdec vp9_vulkan +h264_d3d12va mpeg2_vaapi vvc_vaapi +h264_dxva2 mpeg4_nvdec wmv3_d3d11va +h264_nvdec mpeg4_vaapi wmv3_d3d11va2 +h264_vaapi prores_raw_vulkan wmv3_d3d12va +h264_vulkan prores_vulkan wmv3_dxva2 +hevc_d3d11va vc1_d3d11va wmv3_nvdec +hevc_d3d11va2 vc1_d3d11va2 wmv3_vaapi +hevc_d3d12va vc1_d3d12va + +Enabled parsers: +aac dvdsub mpegaudio +aac_latm evc mpegvideo +ac3 ffv1 opus +adx flac png +ahx ftr pnm +amr g723_1 prores +apv g729 prores_raw +av1 gif qoi +avs2 gsm rv34 +avs3 h261 sbc +bmp h263 sipr +cavsvideo h264 tak +cook hdr vc1 +cri hevc vorbis +dca ipu vp3 +dirac jpeg2000 vp8 +dnxhd jpegxl vp9 +dnxuc jpegxs vvc +dolby_e lcevc webp +dpx misc4 xbm +dvaudio mjpeg xma +dvbsub mlp xwd +dvd_nav mpeg4video + +Enabled demuxers: +aa ico pcm_f64be +aac idcin pcm_f64le +aax idf pcm_mulaw +ac3 iff pcm_s16be +ac4 ifv pcm_s16le +ace ilbc pcm_s24be +acm image2 pcm_s24le +act image2_alias_pix pcm_s32be +adf image2_brender_pix pcm_s32le +adp image2pipe pcm_s8 +ads image_bmp_pipe pcm_u16be +adx image_cri_pipe pcm_u16le +aea image_dds_pipe pcm_u24be +afc image_dpx_pipe pcm_u24le +aiff image_exr_pipe pcm_u32be +aix image_gem_pipe pcm_u32le +alp image_gif_pipe pcm_u8 +amr image_hdr_pipe pcm_vidc +amrnb image_j2k_pipe pdv +amrwb image_jpeg_pipe pjs +anm image_jpegls_pipe pmp +apac image_jpegxl_pipe pp_bnk +apc image_jpegxs_pipe pva +ape image_pam_pipe pvf +apm image_pbm_pipe qcp +apng image_pcx_pipe qoa +aptx image_pfm_pipe r3d +aptx_hd image_pgm_pipe rawvideo +apv image_pgmyuv_pipe rcwt +aqtitle image_pgx_pipe realtext +argo_asf image_phm_pipe redspark +argo_brp image_photocd_pipe rka +argo_cvg image_pictor_pipe rl2 +asf image_png_pipe rm +asf_o image_ppm_pipe roq +ass image_psd_pipe rpl +ast image_qdraw_pipe rsd +au image_qoi_pipe rso +av1 image_sgi_pipe rtp +avi image_sunrast_pipe rtsp +avisynth image_svg_pipe s337m +avr image_tiff_pipe sami +avs image_vbn_pipe sap +avs2 image_webp_pipe sbc +avs3 image_xbm_pipe sbg +bethsoftvid image_xpm_pipe scc +bfi image_xwd_pipe scd +bfstm imf sdns +bink ingenient sdp +binka ipmovie sdr2 +bintext ipu sds +bit ircam sdx +bitpacked iss segafilm +bmv iv8 ser +boa ivf sga +bonk ivr shorten +brstm jacosub siff +c93 jpegxl_anim simbiosis_imx +caf jv sln +cavsvideo kux smacker +cdg kvag smjpeg +cdxl laf smush +cine lc3 sol +codec2 libgme sox +codec2raw libmodplug spdif +concat libopenmpt srt +dash live_flv stl +data lmlm4 str +daud loas subviewer +dcstr lrc subviewer1 +derf luodat sup +dfa lvf svag +dfpwm lxf svs +dhav m4v swf +dirac matroska tak +dnxhd mca tedcaptions +dsf mcc thp +dsicin mgsts threedostr +dss microdvd tiertexseq +dts mjpeg tmv +dtshd mjpeg_2000 truehd +dv mlp tta +dvbsub mlv tty +dvbtxt mm txd +dvdvideo mmf ty +dxa mods usm +ea moflex v210 +ea_cdata mov v210x +eac3 mp3 vag +epaf mpc vc1 +evc mpc8 vc1t +ffmetadata mpegps vividas +filmstrip mpegts vivo +fits mpegtsraw vmd +flac mpegvideo vobsub +flic mpjpeg voc +flv mpl2 vpk +fourxm mpsub vplayer +frm msf vqf +fsb msnwc_tcp vvc +fwse msp w64 +g722 mtaf wady +g723_1 mtv wav +g726 musx wavarc +g726le mv wc3 +g728 mvi webm_dash_manifest +g729 mxf webvtt +gdv mxg wsaud +genh nc wsd +gif nistsphere wsvqa +gsm nsp wtv +gxf nsv wv +h261 nut wve +h263 nuv xa +h264 obu xbin +hca ogg xmd +hcom oma xmv +hevc osq xvag +hls paf xwma +hnm pcm_alaw yop +hxvs pcm_f32be yuv4mpegpipe +iamf pcm_f32le + +Enabled muxers: +a64 h263 pcm_s24be +ac3 h264 pcm_s24le +ac4 hash pcm_s32be +adts hds pcm_s32le +adx hevc pcm_s8 +aea hls pcm_u16be +aiff iamf pcm_u16le +alp ico pcm_u24be +amr ilbc pcm_u24le +amv image2 pcm_u32be +apm image2pipe pcm_u32le +apng ipod pcm_u8 +aptx ircam pcm_vidc +aptx_hd ismv psp +apv ivf rawvideo +argo_asf jacosub rcwt +argo_cvg kvag rm +asf latm roq +asf_stream lc3 rso +ass lrc rtp +ast m4v rtp_mpegts +au matroska rtsp +avi matroska_audio sap +avif mcc sbc +avm2 md5 scc +avs2 microdvd segafilm +avs3 mjpeg segment +bit mkvtimestamp_v2 smjpeg +caf mlp smoothstreaming +cavsvideo mmf sox +chromaprint mov spdif +codec2 mp2 spx +codec2raw mp3 srt +crc mp4 stream_segment +dash mpeg1system streamhash +data mpeg1vcd sup +daud mpeg1video swf +dfpwm mpeg2dvd tee +dirac mpeg2svcd tg2 +dnxhd mpeg2video tgp +dts mpeg2vob truehd +dv mpegts tta +eac3 mpjpeg ttml +evc mxf uncodedframecrc +f4v mxf_d10 vc1 +ffmetadata mxf_opatom vc1t +fifo null voc +filmstrip nut vvc +fits obu w64 +flac oga wav +flv ogg webm +framecrc ogv webm_chunk +framehash oma webm_dash_manifest +framemd5 opus webp +g722 pcm_alaw webvtt +g723_1 pcm_f32be whip +g726 pcm_f32le wsaud +g726le pcm_f64be wtv +gif pcm_f64le wv +gsm pcm_mulaw yuv4mpegpipe +gxf pcm_s16be +h261 pcm_s16le + +Enabled protocols: +async http rtmp +bluray httpproxy rtmpe +cache https rtmps +concat icecast rtmpt +concatf ipfs_gateway rtmpte +crypto ipns_gateway rtmpts +data librist rtp +dtls libsrt srtp +fd libssh subfile +ffrtmpcrypt libzmq tcp +ffrtmphttp md5 tee +file mmsh tls +ftp mmst udp +gopher pipe udplite +gophers prompeg + +Enabled filters: +a3dscope decimate perlin +aap deconvolve perms +abench dedot perspective +abitscope deesser phase +acompressor deflate photosensitivity +acontrast deflicker pixdesctest +acopy deinterlace_d3d12 pixelize +acrossfade deinterlace_qsv pixscope +acrossover deinterlace_vaapi pp7 +acrusher dejudder premultiply +acue delogo premultiply_dynamic +addroi denoise_vaapi prewitt +adeclick deshake prewitt_opencl +adeclip deshake_opencl procamp_vaapi +adecorrelate despill program_opencl +adelay detelecine pseudocolor +adenorm dialoguenhance psnr +aderivative dilation pullup +adrawgraph dilation_opencl qp +adrc displace qrencode +adynamicequalizer doubleweave qrencodesrc +adynamicsmooth drawbox quirc +aecho drawbox_vaapi random +aemphasis drawgraph readeia608 +aeval drawgrid readvitc +aevalsrc drawtext realtime +aexciter drawvg remap +afade drmeter remap_opencl +afdelaysrc dynaudnorm removegrain +afftdn earwax removelogo +afftfilt ebur128 repeatfields +afir edgedetect replaygain +afireqsrc elbg reverse +afirsrc entropy rgbashift +aformat epx rgbtestsrc +afreqshift eq roberts +afwtdn equalizer roberts_opencl +agate erosion rotate +agraphmonitor erosion_opencl rubberband +ahistogram estdif sab +aiir exposure scale +aintegral extractplanes scale2ref +ainterleave extrastereo scale_cuda +alatency fade scale_d3d11 +alimiter feedback scale_d3d12 +allpass fftdnoiz scale_qsv +allrgb fftfilt scale_vaapi +allyuv field scale_vulkan +aloop fieldhint scdet +alphaextract fieldmatch scdet_vulkan +alphamerge fieldorder scharr +amerge fillborders scroll +ametadata find_rect segment +amf_capture firequalizer select +amix flanger selectivecolor +amovie flip_vulkan sendcmd +amplify flite separatefields +amultiply floodfill setdar +anequalizer format setfield +anlmdn fps setparams +anlmf framepack setpts +anlms framerate setrange +anoisesrc framestep setsar +anull freezedetect settb +anullsink freezeframes sharpness_vaapi +anullsrc frei0r shear +apad frei0r_src showcqt +aperms fspp showcwt +aphasemeter fsync showfreqs +aphaser gblur showinfo +aphaseshift gblur_vulkan showpalette +apsnr geq showspatial +apsyclip gfxcapture showspectrum +apulsator gradfun showspectrumpic +arealtime gradients showvolume +aresample graphmonitor showwaves +areverse grayworld showwavespic +arls greyedge shuffleframes +arnndn guided shufflepixels +asdr haas shuffleplanes +asegment haldclut sidechaincompress +aselect haldclutsrc sidechaingate +asendcmd hdcd sidedata +asetnsamples headphone sierpinski +asetpts hflip signalstats +asetrate hflip_vulkan signature +asettb highpass silencedetect +ashowinfo highshelf silenceremove +asidedata hilbert sinc +asisdr histeq sine +asoftclip histogram siti +aspectralstats hqdn3d smartblur +asplit hqx smptebars +ass hstack smptehdbars +astats hstack_qsv sobel +astreamselect hstack_vaapi sobel_opencl +asubboost hsvhold sofalizer +asubcut hsvkey spectrumsynth +asupercut hue speechnorm +asuperpass huesaturation split +asuperstop hwdownload spp +atadenoise hwmap sr_amf +atempo hwupload ssim +atilt hwupload_cuda ssim360 +atrim hysteresis stereo3d +avectorscope iccdetect stereotools +avgblur iccgen stereowiden +avgblur_opencl identity streamselect +avgblur_vulkan idet subtitles +avsynctest il super2xsai +axcorrelate inflate superequalizer +azmq interlace surround +backgroundkey interlace_vulkan swaprect +bandpass interleave swapuv +bandreject join tblend +bass kerndeint telecine +bbox kirsch testsrc +bench ladspa testsrc2 +bilateral lagfun thistogram +bilateral_cuda latency threshold +biquad lenscorrection thumbnail +bitplanenoise lensfun thumbnail_cuda +blackdetect libplacebo tile +blackdetect_vulkan libvmaf tiltandshift +blackframe life tiltshelf +blend limitdiff tinterlace +blend_vulkan limiter tlut2 +blockdetect loop tmedian +blurdetect loudnorm tmidequalizer +bm3d lowpass tmix +boxblur lowshelf tonemap +boxblur_opencl lumakey tonemap_opencl +bs2b lut tonemap_vaapi +bwdif lut1d tpad +bwdif_cuda lut2 transpose +bwdif_vulkan lut3d transpose_opencl +cas lutrgb transpose_vaapi +ccrepack lutyuv transpose_vulkan +cellauto mandelbrot treble +channelmap maskedclamp tremolo +channelsplit maskedmax trim +chorus maskedmerge unpremultiply +chromaber_vulkan maskedmin unsharp +chromahold maskedthreshold unsharp_opencl +chromakey maskfun untile +chromakey_cuda mcdeint uspp +chromanr mcompand v360 +chromashift median vaguedenoiser +ciescope mergeplanes varblur +codecview mestimate vectorscope +color mestimate_d3d12 vflip +color_vulkan metadata vflip_vulkan +colorbalance midequalizer vfrdet +colorchannelmixer minterpolate vibrance +colorchart mix vibrato +colorcontrast monochrome vidstabdetect +colorcorrect morpho vidstabtransform +colordetect movie vif +colorhold mpdecimate vignette +colorize mptestsrc virtualbass +colorkey msad vmafmotion +colorkey_opencl multiply volume +colorlevels negate volumedetect +colormap nlmeans vpp_amf +colormatrix nlmeans_opencl vpp_qsv +colorspace nlmeans_vulkan vstack +colorspace_cuda nnedi vstack_qsv +colorspectrum noformat vstack_vaapi +colortemperature noise w3fdif +compand normalize waveform +compensationdelay null weave +concat nullsink whisper +convolution nullsrc xbr +convolution_opencl openclsrc xcorrelate +convolve oscilloscope xfade +copy overlay xfade_opencl +corr overlay_cuda xfade_vulkan +cover_rect overlay_opencl xmedian +crop overlay_qsv xpsnr +cropdetect overlay_vaapi xstack +crossfeed overlay_vulkan xstack_qsv +crystalizer owdenoise xstack_vaapi +cue pad yadif +curves pad_cuda yadif_cuda +datascope pad_opencl yaepblur +dblur pad_vaapi yuvtestsrc +dcshift pal100bars zmq +dctdnoiz pal75bars zoneplate +ddagrab palettegen zoompan +deband paletteuse zscale +deblock pan + +Enabled bsfs: +aac_adtstoasc h264_metadata pcm_rechunk +ahx_to_mp2 h264_mp4toannexb pgs_frame_merge +apv_metadata h264_redundant_pps prores_metadata +av1_frame_merge hapqa_extract remove_extradata +av1_frame_split hevc_metadata setts +av1_metadata hevc_mp4toannexb showinfo +chomp imx_dump_header smpte436m_to_eia608 +dca_core lcevc_metadata text2movsub +dovi_rpu media100_to_mjpegb trace_headers +dts2pts mjpeg2jpeg truehd_core +dump_extradata mjpega_dump_header vp9_metadata +dv_error_marker mov2textsub vp9_raw_reorder +eac3_core mpeg2_metadata vp9_superframe +eia608_to_smpte436m mpeg4_unpack_bframes vp9_superframe_split +evc_frame_merge noise vvc_metadata +extract_extradata null vvc_mp4toannexb +filter_units opus_metadata + +Enabled indevs: +dshow lavfi openal +gdigrab libcdio vfwcap + +Enabled outdevs: +caca + +release-full external libraries' versions: + +AMF v1.5.0-1-gd0b3e6d +aom v3.13.1-302-g935aaa9b71 +aribcaption 1.1.1 +AviSynthPlus v3.7.5-265-ga371d0ac +bs2b 3.1.0 +cairo 1.18.5 +chromaprint 1.6.0 +codec2 1.2.0-106-g96e8a19c +dav1d 1.5.3-21-g241a6b2 +davs2 1.7-1-gb41cf11 +dvdnav 7.0.0-1-gcf11277 +dvdread 7.0.1-47-ga66aec4 +ffnvcodec n13.0.19.0-2-g876af32 +flite v2.2-55-g6c9f20d +frei0r v2.5.5 +gsm 1.0.24 +ladspa-sdk 1.17 +lame 3.100 +lc3 1.1.3 +lcms2 2.16 +lensfun v0.3.95-1925-g268821c0 +libcdio-paranoia 10.2 +libgme 0.6.4 +libilbc v3.0.4-346-g6adb26d4a4 +libjxl v0.11-snapshot-526-g58e60a05 +libopencore-amrnb 0.1.6 +libopencore-amrwb 0.1.6 +libplacebo v7.360.0-11-g33b5dfa +libsoxr 0.1.3 +libssh 0.11.3 +libtheora v1.2.0 +libwebp v1.6.0-150-gf342dfc +openal-soft latest +openapv v0.2.1.2 +openmpt libopenmpt-0.6.26-29-ge17075292 +opus v1.6.1-9-g2d862ea1 +qrencode 4.1.1 +quirc 1.2 +rav1e p20250624-3-g564ae3b +rist 0.2.12 +rubberband v1.8.1 +SDL release-2.32.0-166-g3c28e8ecc +shaderc v2026.1-5-g9e83db1 +shine 3.1.1 +snappy 1.2.2 +speex Speex-1.2.1-51-g0589522 +srt v1.5.5-rc.1 +SVT-AV1 v4.0.1-131-g003643d4 +SVT-JPEG-XS v0.9.0-40-gb1b2278 +twolame 0.4.0 +uavs3d v1.1-50-g0e20d2c +VAAPI 2.24.0. +vidstab v1.1.1-24-g92bc0b0 +vmaf v3.0.0-125-g7e16db0a +vo-amrwbenc 0.1.3 +vorbis v1.3.7-23-g8de70016 +VPL 2.16 +vpx v1.16.0-61-ge1dd14963 +vulkan-loader v1.4.346 +vvenc v1.14.0-37-g7482e14 +whisper.cpp 1.8.3 +x264 v0.165.3223 +x265 4.1-240-g8be7dbf81 +xavs2 1.4 +xevd 0.5.0 +xeve 0.5.1 +xvid v1.3.7 +zeromq 4.3.5 +zimg release-3.0.6-213-gbf3f425 +zvbi v0.2.44-4-g41477c9 + diff --git a/ffmpeg-audio/ffmpeg-win/bin/avcodec-62.dll b/ffmpeg-audio/ffmpeg-win/bin/avcodec-62.dll new file mode 100644 index 0000000..6ede448 Binary files /dev/null and b/ffmpeg-audio/ffmpeg-win/bin/avcodec-62.dll differ diff --git a/ffmpeg-audio/ffmpeg-win/bin/avdevice-62.dll b/ffmpeg-audio/ffmpeg-win/bin/avdevice-62.dll new file mode 100644 index 0000000..f5ae6be Binary files /dev/null and b/ffmpeg-audio/ffmpeg-win/bin/avdevice-62.dll differ diff --git a/ffmpeg-audio/ffmpeg-win/bin/avfilter-11.dll b/ffmpeg-audio/ffmpeg-win/bin/avfilter-11.dll new file mode 100644 index 0000000..22d7006 Binary files /dev/null and b/ffmpeg-audio/ffmpeg-win/bin/avfilter-11.dll differ diff --git a/ffmpeg-audio/ffmpeg-win/bin/avformat-62.dll b/ffmpeg-audio/ffmpeg-win/bin/avformat-62.dll new file mode 100644 index 0000000..79bc6fe Binary files /dev/null and b/ffmpeg-audio/ffmpeg-win/bin/avformat-62.dll differ diff --git a/ffmpeg-audio/ffmpeg-win/bin/avutil-60.dll b/ffmpeg-audio/ffmpeg-win/bin/avutil-60.dll new file mode 100644 index 0000000..2603514 Binary files /dev/null and b/ffmpeg-audio/ffmpeg-win/bin/avutil-60.dll differ diff --git a/ffmpeg-audio/ffmpeg-win/bin/swresample-6.dll b/ffmpeg-audio/ffmpeg-win/bin/swresample-6.dll new file mode 100644 index 0000000..0097efb Binary files /dev/null and b/ffmpeg-audio/ffmpeg-win/bin/swresample-6.dll differ diff --git a/ffmpeg-audio/ffmpeg-win/bin/swscale-9.dll b/ffmpeg-audio/ffmpeg-win/bin/swscale-9.dll new file mode 100644 index 0000000..ede7539 Binary files /dev/null and b/ffmpeg-audio/ffmpeg-win/bin/swscale-9.dll differ diff --git a/ffmpeg-audio/ffmpeg-win/include/libavcodec/ac3_parser.h b/ffmpeg-audio/ffmpeg-win/include/libavcodec/ac3_parser.h new file mode 100644 index 0000000..ff8cc4c --- /dev/null +++ b/ffmpeg-audio/ffmpeg-win/include/libavcodec/ac3_parser.h @@ -0,0 +1,36 @@ +/* + * AC-3 parser prototypes + * Copyright (c) 2003 Fabrice Bellard + * 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 + */ + +#ifndef AVCODEC_AC3_PARSER_H +#define AVCODEC_AC3_PARSER_H + +#include +#include + +/** + * Extract the bitstream ID and the frame size from AC-3 data. + */ +int av_ac3_parse_header(const uint8_t *buf, size_t size, + uint8_t *bitstream_id, uint16_t *frame_size); + + +#endif /* AVCODEC_AC3_PARSER_H */ diff --git a/ffmpeg-audio/ffmpeg-win/include/libavcodec/adts_parser.h b/ffmpeg-audio/ffmpeg-win/include/libavcodec/adts_parser.h new file mode 100644 index 0000000..f85becd --- /dev/null +++ b/ffmpeg-audio/ffmpeg-win/include/libavcodec/adts_parser.h @@ -0,0 +1,37 @@ +/* + * 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 + */ + +#ifndef AVCODEC_ADTS_PARSER_H +#define AVCODEC_ADTS_PARSER_H + +#include +#include + +#define AV_AAC_ADTS_HEADER_SIZE 7 + +/** + * Extract the number of samples and frames from AAC data. + * @param[in] buf pointer to AAC data buffer + * @param[out] samples Pointer to where number of samples is written + * @param[out] frames Pointer to where number of frames is written + * @return Returns 0 on success, error code on failure. + */ +int av_adts_header_parse(const uint8_t *buf, uint32_t *samples, + uint8_t *frames); + +#endif /* AVCODEC_ADTS_PARSER_H */ diff --git a/ffmpeg-audio/ffmpeg-win/include/libavcodec/avcodec.h b/ffmpeg-audio/ffmpeg-win/include/libavcodec/avcodec.h new file mode 100644 index 0000000..6824bfc --- /dev/null +++ b/ffmpeg-audio/ffmpeg-win/include/libavcodec/avcodec.h @@ -0,0 +1,2995 @@ +/* + * copyright (c) 2001 Fabrice Bellard + * + * 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 + */ + +#ifndef AVCODEC_AVCODEC_H +#define AVCODEC_AVCODEC_H + +/** + * @file + * @ingroup libavc + * Libavcodec external API header + */ + +#include "libavutil/samplefmt.h" +#include "libavutil/attributes.h" +#include "libavutil/avutil.h" +#include "libavutil/buffer.h" +#include "libavutil/channel_layout.h" +#include "libavutil/dict.h" +#include "libavutil/frame.h" +#include "libavutil/log.h" +#include "libavutil/pixfmt.h" +#include "libavutil/rational.h" + +#include "codec.h" +#include "codec_id.h" +#include "defs.h" +#include "packet.h" +#include "version_major.h" +#ifndef HAVE_AV_CONFIG_H +/* When included as part of the ffmpeg build, only include the major version + * to avoid unnecessary rebuilds. When included externally, keep including + * the full version information. */ +#include "version.h" + +#include "codec_desc.h" +#include "codec_par.h" +#endif + +struct AVCodecParameters; + +/** + * @defgroup libavc libavcodec + * Encoding/Decoding Library + * + * @{ + * + * @defgroup lavc_decoding Decoding + * @{ + * @} + * + * @defgroup lavc_encoding Encoding + * @{ + * @} + * + * @defgroup lavc_codec Codecs + * @{ + * @defgroup lavc_codec_native Native Codecs + * @{ + * @} + * @defgroup lavc_codec_wrappers External library wrappers + * @{ + * @} + * @defgroup lavc_codec_hwaccel Hardware Accelerators bridge + * @{ + * @} + * @} + * @defgroup lavc_internal Internal + * @{ + * @} + * @} + */ + +/** + * @ingroup libavc + * @defgroup lavc_encdec send/receive encoding and decoding API overview + * @{ + * + * The avcodec_send_packet()/avcodec_receive_frame()/avcodec_send_frame()/ + * avcodec_receive_packet() functions provide an encode/decode API, which + * decouples input and output. + * + * The API is very similar for encoding/decoding and audio/video, and works as + * follows: + * - Set up and open the AVCodecContext as usual. + * - Send valid input: + * - For decoding, call avcodec_send_packet() to give the decoder raw + * compressed data in an AVPacket. + * - For encoding, call avcodec_send_frame() to give the encoder an AVFrame + * containing uncompressed audio or video. + * + * In both cases, it is recommended that AVPackets and AVFrames are + * refcounted, or libavcodec might have to copy the input data. (libavformat + * always returns refcounted AVPackets, and av_frame_get_buffer() allocates + * refcounted AVFrames.) + * - Receive output in a loop. Periodically call one of the avcodec_receive_*() + * functions and process their output: + * - For decoding, call avcodec_receive_frame(). On success, it will return + * an AVFrame containing uncompressed audio or video data. + * - For encoding, call avcodec_receive_packet(). On success, it will return + * an AVPacket with a compressed frame. + * + * Repeat this call until it returns AVERROR(EAGAIN) or an error. The + * AVERROR(EAGAIN) return value means that new input data is required to + * return new output. In this case, continue with sending input. For each + * input frame/packet, the codec will typically return 1 output frame/packet, + * but it can also be 0 or more than 1. + * + * At the beginning of decoding or encoding, the codec might accept multiple + * input frames/packets without returning a frame, until its internal buffers + * are filled. This situation is handled transparently if you follow the steps + * outlined above. + * + * In theory, sending input can result in EAGAIN - this should happen only if + * not all output was received. You can use this to structure alternative decode + * or encode loops other than the one suggested above. For example, you could + * try sending new input on each iteration, and try to receive output if that + * returns EAGAIN. + * + * End of stream situations. These require "flushing" (aka draining) the codec, + * as the codec might buffer multiple frames or packets internally for + * performance or out of necessity (consider B-frames). + * This is handled as follows: + * - Instead of valid input, send NULL to the avcodec_send_packet() (decoding) + * or avcodec_send_frame() (encoding) functions. This will enter draining + * mode. + * - Call avcodec_receive_frame() (decoding) or avcodec_receive_packet() + * (encoding) in a loop until AVERROR_EOF is returned. The functions will + * not return AVERROR(EAGAIN), unless you forgot to enter draining mode. + * - Before decoding can be resumed again, the codec has to be reset with + * avcodec_flush_buffers(). + * + * Using the API as outlined above is highly recommended. But it is also + * possible to call functions outside of this rigid schema. For example, you can + * call avcodec_send_packet() repeatedly without calling + * avcodec_receive_frame(). In this case, avcodec_send_packet() will succeed + * until the codec's internal buffer has been filled up (which is typically of + * size 1 per output frame, after initial input), and then reject input with + * AVERROR(EAGAIN). Once it starts rejecting input, you have no choice but to + * read at least some output. + * + * Not all codecs will follow a rigid and predictable dataflow; the only + * guarantee is that an AVERROR(EAGAIN) return value on a send/receive call on + * one end implies that a receive/send call on the other end will succeed, or + * at least will not fail with AVERROR(EAGAIN). In general, no codec will + * permit unlimited buffering of input or output. + * + * A codec is not allowed to return AVERROR(EAGAIN) for both sending and receiving. This + * would be an invalid state, which could put the codec user into an endless + * loop. The API has no concept of time either: it cannot happen that trying to + * do avcodec_send_packet() results in AVERROR(EAGAIN), but a repeated call 1 second + * later accepts the packet (with no other receive/flush API calls involved). + * The API is a strict state machine, and the passage of time is not supposed + * to influence it. Some timing-dependent behavior might still be deemed + * acceptable in certain cases. But it must never result in both send/receive + * returning EAGAIN at the same time at any point. It must also absolutely be + * avoided that the current state is "unstable" and can "flip-flop" between + * the send/receive APIs allowing progress. For example, it's not allowed that + * the codec randomly decides that it actually wants to consume a packet now + * instead of returning a frame, after it just returned AVERROR(EAGAIN) on an + * avcodec_send_packet() call. + * @} + */ + +/** + * @defgroup lavc_core Core functions/structures. + * @ingroup libavc + * + * Basic definitions, functions for querying libavcodec capabilities, + * allocating core structures, etc. + * @{ + */ + +/** + * @ingroup lavc_encoding + */ +typedef struct RcOverride{ + int start_frame; + int end_frame; + int qscale; // If this is 0 then quality_factor will be used instead. + float quality_factor; +} RcOverride; + +/* encoding support + These flags can be passed in AVCodecContext.flags before initialization. + Note: Not everything is supported yet. +*/ + +/** + * Allow decoders to produce frames with data planes that are not aligned + * to CPU requirements (e.g. due to cropping). + */ +#define AV_CODEC_FLAG_UNALIGNED (1 << 0) +/** + * Use fixed qscale. + */ +#define AV_CODEC_FLAG_QSCALE (1 << 1) +/** + * 4 MV per MB allowed / advanced prediction for H.263. + */ +#define AV_CODEC_FLAG_4MV (1 << 2) +/** + * Output even those frames that might be corrupted. + */ +#define AV_CODEC_FLAG_OUTPUT_CORRUPT (1 << 3) +/** + * Use qpel MC. + */ +#define AV_CODEC_FLAG_QPEL (1 << 4) +/** + * Request the encoder to output reconstructed frames, i.e.\ frames that would + * be produced by decoding the encoded bitstream. These frames may be retrieved + * by calling avcodec_receive_frame() immediately after a successful call to + * avcodec_receive_packet(). + * + * Should only be used with encoders flagged with the + * @ref AV_CODEC_CAP_ENCODER_RECON_FRAME capability. + * + * @note + * Each reconstructed frame returned by the encoder corresponds to the last + * encoded packet, i.e. the frames are returned in coded order rather than + * presentation order. + * + * @note + * Frame parameters (like pixel format or dimensions) do not have to match the + * AVCodecContext values. Make sure to use the values from the returned frame. + */ +#define AV_CODEC_FLAG_RECON_FRAME (1 << 6) +/** + * @par decoding + * Request the decoder to propagate each packet's AVPacket.opaque and + * AVPacket.opaque_ref to its corresponding output AVFrame. + * + * @par encoding: + * Request the encoder to propagate each frame's AVFrame.opaque and + * AVFrame.opaque_ref values to its corresponding output AVPacket. + * + * @par + * May only be set on encoders that have the + * @ref AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE capability flag. + * + * @note + * While in typical cases one input frame produces exactly one output packet + * (perhaps after a delay), in general the mapping of frames to packets is + * M-to-N, so + * - Any number of input frames may be associated with any given output packet. + * This includes zero - e.g. some encoders may output packets that carry only + * metadata about the whole stream. + * - A given input frame may be associated with any number of output packets. + * Again this includes zero - e.g. some encoders may drop frames under certain + * conditions. + * . + * This implies that when using this flag, the caller must NOT assume that + * - a given input frame's opaques will necessarily appear on some output packet; + * - every output packet will have some non-NULL opaque value. + * . + * When an output packet contains multiple frames, the opaque values will be + * taken from the first of those. + * + * @note + * The converse holds for decoders, with frames and packets switched. + */ +#define AV_CODEC_FLAG_COPY_OPAQUE (1 << 7) +/** + * Signal to the encoder that the values of AVFrame.duration are valid and + * should be used (typically for transferring them to output packets). + * + * If this flag is not set, frame durations are ignored. + */ +#define AV_CODEC_FLAG_FRAME_DURATION (1 << 8) +/** + * Use internal 2pass ratecontrol in first pass mode. + */ +#define AV_CODEC_FLAG_PASS1 (1 << 9) +/** + * Use internal 2pass ratecontrol in second pass mode. + */ +#define AV_CODEC_FLAG_PASS2 (1 << 10) +/** + * loop filter. + */ +#define AV_CODEC_FLAG_LOOP_FILTER (1 << 11) +/** + * Only decode/encode grayscale. + */ +#define AV_CODEC_FLAG_GRAY (1 << 13) +/** + * error[?] variables will be set during encoding. + */ +#define AV_CODEC_FLAG_PSNR (1 << 15) +/** + * Use interlaced DCT. + */ +#define AV_CODEC_FLAG_INTERLACED_DCT (1 << 18) +/** + * Force low delay. + */ +#define AV_CODEC_FLAG_LOW_DELAY (1 << 19) +/** + * Place global headers in extradata instead of every keyframe. + */ +#define AV_CODEC_FLAG_GLOBAL_HEADER (1 << 22) +/** + * Use only bitexact stuff (except (I)DCT). + */ +#define AV_CODEC_FLAG_BITEXACT (1 << 23) +/* Fx : Flag for H.263+ extra options */ +/** + * H.263 advanced intra coding / MPEG-4 AC prediction + */ +#define AV_CODEC_FLAG_AC_PRED (1 << 24) +/** + * interlaced motion estimation + */ +#define AV_CODEC_FLAG_INTERLACED_ME (1 << 29) +#define AV_CODEC_FLAG_CLOSED_GOP (1U << 31) + +/** + * Allow non spec compliant speedup tricks. + */ +#define AV_CODEC_FLAG2_FAST (1 << 0) +/** + * Skip bitstream encoding. + */ +#define AV_CODEC_FLAG2_NO_OUTPUT (1 << 2) +/** + * Place global headers at every keyframe instead of in extradata. + */ +#define AV_CODEC_FLAG2_LOCAL_HEADER (1 << 3) + +/** + * Input bitstream might be truncated at a packet boundaries + * instead of only at frame boundaries. + */ +#define AV_CODEC_FLAG2_CHUNKS (1 << 15) +/** + * Discard cropping information from SPS. + */ +#define AV_CODEC_FLAG2_IGNORE_CROP (1 << 16) + +/** + * Show all frames before the first keyframe + */ +#define AV_CODEC_FLAG2_SHOW_ALL (1 << 22) +/** + * Export motion vectors through frame side data + */ +#define AV_CODEC_FLAG2_EXPORT_MVS (1 << 28) +/** + * Do not skip samples and export skip information as frame side data + */ +#define AV_CODEC_FLAG2_SKIP_MANUAL (1 << 29) +/** + * Do not reset ASS ReadOrder field on flush (subtitles decoding) + */ +#define AV_CODEC_FLAG2_RO_FLUSH_NOOP (1 << 30) +/** + * Generate/parse ICC profiles on encode/decode, as appropriate for the type of + * file. No effect on codecs which cannot contain embedded ICC profiles, or + * when compiled without support for lcms2. + */ +#define AV_CODEC_FLAG2_ICC_PROFILES (1U << 31) + +/* Exported side data. + These flags can be passed in AVCodecContext.export_side_data before initialization. +*/ +/** + * Export motion vectors through frame side data + */ +#define AV_CODEC_EXPORT_DATA_MVS (1 << 0) +/** + * Export encoder Producer Reference Time through packet side data + */ +#define AV_CODEC_EXPORT_DATA_PRFT (1 << 1) +/** + * Decoding only. + * Export the AVVideoEncParams structure through frame side data. + */ +#define AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS (1 << 2) +/** + * Decoding only. + * Do not apply film grain, export it instead. + */ +#define AV_CODEC_EXPORT_DATA_FILM_GRAIN (1 << 3) + +/** + * Decoding only. + * Do not apply picture enhancement layers, export them instead. + */ +#define AV_CODEC_EXPORT_DATA_ENHANCEMENTS (1 << 4) + +/** + * The decoder will keep a reference to the frame and may reuse it later. + */ +#define AV_GET_BUFFER_FLAG_REF (1 << 0) + +/** + * The encoder will keep a reference to the packet and may reuse it later. + */ +#define AV_GET_ENCODE_BUFFER_FLAG_REF (1 << 0) + +/** + * The decoder will bypass frame threading and return the next frame as soon as + * possible. Note that this may deliver frames earlier than the advertised + * `AVCodecContext.delay`. No effect when frame threading is disabled, or on + * encoding. + */ +#define AV_CODEC_RECEIVE_FRAME_FLAG_SYNCHRONOUS (1 << 0) + +/** + * main external API structure. + * New fields can be added to the end with minor version bumps. + * Removal, reordering and changes to existing fields require a major + * version bump. + * You can use AVOptions (av_opt* / av_set/get*()) to access these fields from user + * applications. + * The name string for AVOptions options matches the associated command line + * parameter name and can be found in libavcodec/options_table.h + * The AVOption/command line parameter names differ in some cases from the C + * structure field names for historic reasons or brevity. + * sizeof(AVCodecContext) must not be used outside libav*. + */ +typedef struct AVCodecContext { + /** + * information on struct for av_log + * - set by avcodec_alloc_context3 + */ + const AVClass *av_class; + int log_level_offset; + + enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */ + const struct AVCodec *codec; + enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */ + + /** + * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). + * This is used to work around some encoder bugs. + * A demuxer should set this to what is stored in the field used to identify the codec. + * If there are multiple such fields in a container then the demuxer should choose the one + * which maximizes the information about the used codec. + * If the codec tag field in a container is larger than 32 bits then the demuxer should + * remap the longer ID to 32 bits with a table or other structure. Alternatively a new + * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated + * first. + * - encoding: Set by user, if not then the default based on codec_id will be used. + * - decoding: Set by user, will be converted to uppercase by libavcodec during init. + */ + unsigned int codec_tag; + + void *priv_data; + + /** + * Private context used for internal data. + * + * Unlike priv_data, this is not codec-specific. It is used in general + * libavcodec functions. + */ + struct AVCodecInternal *internal; + + /** + * Private data of the user, can be used to carry app specific stuff. + * - encoding: Set by user. + * - decoding: Set by user. + */ + void *opaque; + + /** + * the average bitrate + * - encoding: Set by user; unused for constant quantizer encoding. + * - decoding: Set by user, may be overwritten by libavcodec + * if this info is available in the stream + */ + int64_t bit_rate; + + /** + * AV_CODEC_FLAG_*. + * - encoding: Set by user. + * - decoding: Set by user. + */ + int flags; + + /** + * AV_CODEC_FLAG2_* + * - encoding: Set by user. + * - decoding: Set by user. + */ + int flags2; + + /** + * Out-of-band global headers that may be used by some codecs. + * + * - decoding: Should be set by the caller when available (typically from a + * demuxer) before opening the decoder; some decoders require this to be + * set and will fail to initialize otherwise. + * + * The array must be allocated with the av_malloc() family of functions; + * allocated size must be at least AV_INPUT_BUFFER_PADDING_SIZE bytes + * larger than extradata_size. + * + * - encoding: May be set by the encoder in avcodec_open2() (possibly + * depending on whether the AV_CODEC_FLAG_GLOBAL_HEADER flag is set). + * + * After being set, the array is owned by the codec and freed in + * avcodec_free_context(). + */ + uint8_t *extradata; + int extradata_size; + + /** + * This is the fundamental unit of time (in seconds) in terms + * of which frame timestamps are represented. For fixed-fps content, + * timebase should be 1/framerate and timestamp increments should be + * identically 1. + * This often, but not always is the inverse of the frame rate or field rate + * for video. 1/time_base is not the average frame rate if the frame rate is not + * constant. + * + * Like containers, elementary streams also can store timestamps, 1/time_base + * is the unit in which these timestamps are specified. + * As example of such codec time base see ISO/IEC 14496-2:2001(E) + * vop_time_increment_resolution and fixed_vop_rate + * (fixed_vop_rate == 0 implies that it is different from the framerate) + * + * - encoding: MUST be set by user. + * - decoding: unused. + */ + AVRational time_base; + + /** + * Timebase in which pkt_dts/pts and AVPacket.dts/pts are expressed. + * - encoding: unused. + * - decoding: set by user. + */ + AVRational pkt_timebase; + + /** + * - decoding: For codecs that store a framerate value in the compressed + * bitstream, the decoder may export it here. { 0, 1} when + * unknown. + * - encoding: May be used to signal the framerate of CFR content to an + * encoder. + */ + AVRational framerate; + + /** + * Codec delay. + * + * Encoding: Number of frames delay there will be from the encoder input to + * the decoder output. (we assume the decoder matches the spec) + * Decoding: Number of frames delay in addition to what a standard decoder + * as specified in the spec would produce. + * + * Video: + * Number of frames the decoded output will be delayed relative to the + * encoded input. + * + * Audio: + * For encoding, this field is unused (see initial_padding). + * + * For decoding, this is the number of samples the decoder needs to + * output before the decoder's output is valid. When seeking, you should + * start decoding this many samples prior to your desired seek point. + * + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + */ + int delay; + + + /* video only */ + /** + * picture width / height. + * + * @note Those fields may not match the values of the last + * AVFrame output by avcodec_receive_frame() due frame + * reordering. + * + * - encoding: MUST be set by user. + * - decoding: May be set by the user before opening the decoder if known e.g. + * from the container. Some decoders will require the dimensions + * to be set by the caller. During decoding, the decoder may + * overwrite those values as required while parsing the data. + */ + int width, height; + + /** + * Bitstream width / height, may be different from width/height e.g. when + * the decoded frame is cropped before being output or lowres is enabled. + * + * @note Those field may not match the value of the last + * AVFrame output by avcodec_receive_frame() due frame + * reordering. + * + * - encoding: unused + * - decoding: May be set by the user before opening the decoder if known + * e.g. from the container. During decoding, the decoder may + * overwrite those values as required while parsing the data. + */ + int coded_width, coded_height; + + /** + * sample aspect ratio (0 if unknown) + * That is the width of a pixel divided by the height of the pixel. + * Numerator and denominator must be relatively prime and smaller than 256 for some video standards. + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + AVRational sample_aspect_ratio; + + /** + * Pixel format, see AV_PIX_FMT_xxx. + * May be set by the demuxer if known from headers. + * May be overridden by the decoder if it knows better. + * + * @note This field may not match the value of the last + * AVFrame output by avcodec_receive_frame() due frame + * reordering. + * + * - encoding: Set by user. + * - decoding: Set by user if known, overridden by libavcodec while + * parsing the data. + */ + enum AVPixelFormat pix_fmt; + + /** + * Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx. + * - encoding: unused. + * - decoding: Set by libavcodec before calling get_format() + */ + enum AVPixelFormat sw_pix_fmt; + + /** + * Chromaticity coordinates of the source primaries. + * - encoding: Set by user + * - decoding: Set by libavcodec + */ + enum AVColorPrimaries color_primaries; + + /** + * Color Transfer Characteristic. + * - encoding: Set by user + * - decoding: Set by libavcodec + */ + enum AVColorTransferCharacteristic color_trc; + + /** + * YUV colorspace type. + * - encoding: Set by user + * - decoding: Set by libavcodec + */ + enum AVColorSpace colorspace; + + /** + * MPEG vs JPEG YUV range. + * - encoding: Set by user to override the default output color range value, + * If not specified, libavcodec sets the color range depending on the + * output format. + * - decoding: Set by libavcodec, can be set by the user to propagate the + * color range to components reading from the decoder context. + */ + enum AVColorRange color_range; + + /** + * This defines the location of chroma samples. + * - encoding: Set by user + * - decoding: Set by libavcodec + */ + enum AVChromaLocation chroma_sample_location; + + /** Field order + * - encoding: set by libavcodec + * - decoding: Set by user. + */ + enum AVFieldOrder field_order; + + /** + * number of reference frames + * - encoding: Set by user. + * - decoding: Set by lavc. + */ + int refs; + + /** + * Size of the frame reordering buffer in the decoder. + * For MPEG-2 it is 1 IPB or 0 low delay IP. + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + */ + int has_b_frames; + + /** + * slice flags + * - encoding: unused + * - decoding: Set by user. + */ + int slice_flags; +#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display +#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG-2 field pics) +#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1) + + /** + * If non NULL, 'draw_horiz_band' is called by the libavcodec + * decoder to draw a horizontal band. It improves cache usage. Not + * all codecs can do that. You must check the codec capabilities + * beforehand. + * When multithreading is used, it may be called from multiple threads + * at the same time; threads might draw different parts of the same AVFrame, + * or multiple AVFrames, and there is no guarantee that slices will be drawn + * in order. + * The function is also used by hardware acceleration APIs. + * It is called at least once during frame decoding to pass + * the data needed for hardware render. + * In that mode instead of pixel data, AVFrame points to + * a structure specific to the acceleration API. The application + * reads the structure and can change some fields to indicate progress + * or mark state. + * - encoding: unused + * - decoding: Set by user. + * @param height the height of the slice + * @param y the y position of the slice + * @param type 1->top field, 2->bottom field, 3->frame + * @param offset offset into the AVFrame.data from which the slice should be read + */ + void (*draw_horiz_band)(struct AVCodecContext *s, + const AVFrame *src, int offset[AV_NUM_DATA_POINTERS], + int y, int type, int height); + + /** + * Callback to negotiate the pixel format. Decoding only, may be set by the + * caller before avcodec_open2(). + * + * Called by some decoders to select the pixel format that will be used for + * the output frames. This is mainly used to set up hardware acceleration, + * then the provided format list contains the corresponding hwaccel pixel + * formats alongside the "software" one. The software pixel format may also + * be retrieved from \ref sw_pix_fmt. + * + * This callback will be called when the coded frame properties (such as + * resolution, pixel format, etc.) change and more than one output format is + * supported for those new properties. If a hardware pixel format is chosen + * and initialization for it fails, the callback may be called again + * immediately. + * + * This callback may be called from different threads if the decoder is + * multi-threaded, but not from more than one thread simultaneously. + * + * @param fmt list of formats which may be used in the current + * configuration, terminated by AV_PIX_FMT_NONE. + * @warning Behavior is undefined if the callback returns a value other + * than one of the formats in fmt or AV_PIX_FMT_NONE. + * @return the chosen format or AV_PIX_FMT_NONE + */ + enum AVPixelFormat (*get_format)(struct AVCodecContext *s, const enum AVPixelFormat * fmt); + + /** + * maximum number of B-frames between non-B-frames + * Note: The output will be delayed by max_b_frames+1 relative to the input. + * - encoding: Set by user. + * - decoding: unused + */ + int max_b_frames; + + /** + * qscale factor between IP and B-frames + * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset). + * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). + * - encoding: Set by user. + * - decoding: unused + */ + float b_quant_factor; + + /** + * qscale offset between IP and B-frames + * - encoding: Set by user. + * - decoding: unused + */ + float b_quant_offset; + + /** + * qscale factor between P- and I-frames + * If > 0 then the last P-frame quantizer will be used (q = lastp_q * factor + offset). + * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). + * - encoding: Set by user. + * - decoding: unused + */ + float i_quant_factor; + + /** + * qscale offset between P and I-frames + * - encoding: Set by user. + * - decoding: unused + */ + float i_quant_offset; + + /** + * luminance masking (0-> disabled) + * - encoding: Set by user. + * - decoding: unused + */ + float lumi_masking; + + /** + * temporary complexity masking (0-> disabled) + * - encoding: Set by user. + * - decoding: unused + */ + float temporal_cplx_masking; + + /** + * spatial complexity masking (0-> disabled) + * - encoding: Set by user. + * - decoding: unused + */ + float spatial_cplx_masking; + + /** + * p block masking (0-> disabled) + * - encoding: Set by user. + * - decoding: unused + */ + float p_masking; + + /** + * darkness masking (0-> disabled) + * - encoding: Set by user. + * - decoding: unused + */ + float dark_masking; + + /** + * noise vs. sse weight for the nsse comparison function + * - encoding: Set by user. + * - decoding: unused + */ + int nsse_weight; + + /** + * motion estimation comparison function + * - encoding: Set by user. + * - decoding: unused + */ + int me_cmp; + /** + * subpixel motion estimation comparison function + * - encoding: Set by user. + * - decoding: unused + */ + int me_sub_cmp; + /** + * macroblock comparison function (not supported yet) + * - encoding: Set by user. + * - decoding: unused + */ + int mb_cmp; + /** + * interlaced DCT comparison function + * - encoding: Set by user. + * - decoding: unused + */ + int ildct_cmp; +#define FF_CMP_SAD 0 +#define FF_CMP_SSE 1 +#define FF_CMP_SATD 2 +#define FF_CMP_DCT 3 +#define FF_CMP_PSNR 4 +#define FF_CMP_BIT 5 +#define FF_CMP_RD 6 +#define FF_CMP_ZERO 7 +#define FF_CMP_VSAD 8 +#define FF_CMP_VSSE 9 +#define FF_CMP_NSSE 10 +#define FF_CMP_W53 11 +#define FF_CMP_W97 12 +#define FF_CMP_DCTMAX 13 +#define FF_CMP_DCT264 14 +#define FF_CMP_MEDIAN_SAD 15 +#define FF_CMP_CHROMA 256 + + /** + * ME diamond size & shape + * - encoding: Set by user. + * - decoding: unused + */ + int dia_size; + + /** + * amount of previous MV predictors (2a+1 x 2a+1 square) + * - encoding: Set by user. + * - decoding: unused + */ + int last_predictor_count; + + /** + * motion estimation prepass comparison function + * - encoding: Set by user. + * - decoding: unused + */ + int me_pre_cmp; + + /** + * ME prepass diamond size & shape + * - encoding: Set by user. + * - decoding: unused + */ + int pre_dia_size; + + /** + * subpel ME quality + * - encoding: Set by user. + * - decoding: unused + */ + int me_subpel_quality; + + /** + * maximum motion estimation search range in subpel units + * If 0 then no limit. + * + * - encoding: Set by user. + * - decoding: unused + */ + int me_range; + + /** + * macroblock decision mode + * - encoding: Set by user. + * - decoding: unused + */ + int mb_decision; +#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp +#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits +#define FF_MB_DECISION_RD 2 ///< rate distortion + + /** + * custom intra quantization matrix + * Must be allocated with the av_malloc() family of functions, and will be freed in + * avcodec_free_context(). + * - encoding: Set/allocated by user, freed by libavcodec. Can be NULL. + * - decoding: Set/allocated/freed by libavcodec. + */ + uint16_t *intra_matrix; + + /** + * custom inter quantization matrix + * Must be allocated with the av_malloc() family of functions, and will be freed in + * avcodec_free_context(). + * - encoding: Set/allocated by user, freed by libavcodec. Can be NULL. + * - decoding: Set/allocated/freed by libavcodec. + */ + uint16_t *inter_matrix; + + /** + * custom intra quantization matrix + * - encoding: Set by user, can be NULL. + * - decoding: unused. + */ + uint16_t *chroma_intra_matrix; + +#if FF_API_INTRA_DC_PRECISION + /** + * precision of the intra DC coefficient - 8 + * - encoding: Set by user. + * - decoding: Set by libavcodec + * @deprecated Use the MPEG-2 encoder's private option "intra_dc_precision" instead. + */ + attribute_deprecated + int intra_dc_precision; +#endif + + /** + * minimum MB Lagrange multiplier + * - encoding: Set by user. + * - decoding: unused + */ + int mb_lmin; + + /** + * maximum MB Lagrange multiplier + * - encoding: Set by user. + * - decoding: unused + */ + int mb_lmax; + + /** + * - encoding: Set by user. + * - decoding: unused + */ + int bidir_refine; + + /** + * minimum GOP size + * - encoding: Set by user. + * - decoding: unused + */ + int keyint_min; + + /** + * the number of pictures in a group of pictures, or 0 for intra_only + * - encoding: Set by user. + * - decoding: unused + */ + int gop_size; + + /** + * Note: Value depends upon the compare function used for fullpel ME. + * - encoding: Set by user. + * - decoding: unused + */ + int mv0_threshold; + + /** + * Number of slices. + * Indicates number of picture subdivisions. Used for parallelized + * decoding. + * - encoding: Set by user + * - decoding: unused + */ + int slices; + + /* audio only */ + int sample_rate; ///< samples per second + + /** + * audio sample format + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + enum AVSampleFormat sample_fmt; ///< sample format + + /** + * Audio channel layout. + * - encoding: must be set by the caller, to one of AVCodec.ch_layouts. + * - decoding: may be set by the caller if known e.g. from the container. + * The decoder can then override during decoding as needed. + */ + AVChannelLayout ch_layout; + + /* The following data should not be initialized. */ + /** + * Number of samples per channel in an audio frame. + * + * - encoding: set by libavcodec in avcodec_open2(). Each submitted frame + * except the last must contain exactly frame_size samples per channel. + * May be 0 when the codec has AV_CODEC_CAP_VARIABLE_FRAME_SIZE set, then the + * frame size is not restricted. + * - decoding: may be set by some decoders to indicate constant frame size + */ + int frame_size; + + /** + * number of bytes per packet if constant and known or 0 + * Used by some WAV based audio codecs. + */ + int block_align; + + /** + * Audio cutoff bandwidth (0 means "automatic") + * - encoding: Set by user. + * - decoding: unused + */ + int cutoff; + + /** + * Type of service that the audio stream conveys. + * - encoding: Set by user. + * - decoding: Set by libavcodec. + */ + enum AVAudioServiceType audio_service_type; + + /** + * desired sample format + * - encoding: Not used. + * - decoding: Set by user. + * Decoder will decode to this format if it can. + */ + enum AVSampleFormat request_sample_fmt; + + /** + * Audio only. The number of "priming" samples (padding) inserted by the + * encoder at the beginning of the audio. I.e. this number of leading + * decoded samples must be discarded by the caller to get the original audio + * without leading padding. + * + * - decoding: unused + * - encoding: Set by libavcodec. The timestamps on the output packets are + * adjusted by the encoder so that they always refer to the + * first sample of the data actually contained in the packet, + * including any added padding. E.g. if the timebase is + * 1/samplerate and the timestamp of the first input sample is + * 0, the timestamp of the first output packet will be + * -initial_padding. + */ + int initial_padding; + + /** + * Audio only. The amount of padding (in samples) appended by the encoder to + * the end of the audio. I.e. this number of decoded samples must be + * discarded by the caller from the end of the stream to get the original + * audio without any trailing padding. + * + * - decoding: unused + * - encoding: unused + */ + int trailing_padding; + + /** + * Number of samples to skip after a discontinuity + * - decoding: unused + * - encoding: set by libavcodec + */ + int seek_preroll; + + /** + * This callback is called at the beginning of each frame to get data + * buffer(s) for it. There may be one contiguous buffer for all the data or + * there may be a buffer per each data plane or anything in between. What + * this means is, you may set however many entries in buf[] you feel necessary. + * Each buffer must be reference-counted using the AVBuffer API (see description + * of buf[] below). + * + * The following fields will be set in the frame before this callback is + * called: + * - format + * - width, height (video only) + * - sample_rate, channel_layout, nb_samples (audio only) + * Their values may differ from the corresponding values in + * AVCodecContext. This callback must use the frame values, not the codec + * context values, to calculate the required buffer size. + * + * This callback must fill the following fields in the frame: + * - data[] + * - linesize[] + * - extended_data: + * * if the data is planar audio with more than 8 channels, then this + * callback must allocate and fill extended_data to contain all pointers + * to all data planes. data[] must hold as many pointers as it can. + * extended_data must be allocated with av_malloc() and will be freed in + * av_frame_unref(). + * * otherwise extended_data must point to data + * - buf[] must contain one or more pointers to AVBufferRef structures. Each of + * the frame's data and extended_data pointers must be contained in these. That + * is, one AVBufferRef for each allocated chunk of memory, not necessarily one + * AVBufferRef per data[] entry. See: av_buffer_create(), av_buffer_alloc(), + * and av_buffer_ref(). + * - extended_buf and nb_extended_buf must be allocated with av_malloc() by + * this callback and filled with the extra buffers if there are more + * buffers than buf[] can hold. extended_buf will be freed in + * av_frame_unref(). + * Decoders will generally initialize the whole buffer before it is output + * but it can in rare error conditions happen that uninitialized data is passed + * through. \important The buffers returned by get_buffer* should thus not contain sensitive + * data. + * + * If AV_CODEC_CAP_DR1 is not set then get_buffer2() must call + * avcodec_default_get_buffer2() instead of providing buffers allocated by + * some other means. + * + * Each data plane must be aligned to the maximum required by the target + * CPU. + * + * @see avcodec_default_get_buffer2() + * + * Video: + * + * If AV_GET_BUFFER_FLAG_REF is set in flags then the frame may be reused + * (read and/or written to if it is writable) later by libavcodec. + * + * avcodec_align_dimensions2() should be used to find the required width and + * height, as they normally need to be rounded up to the next multiple of 16. + * + * Some decoders do not support linesizes changing between frames. + * + * If frame multithreading is used, this callback may be called from a + * different thread, but not from more than one at once. Does not need to be + * reentrant. + * + * @see avcodec_align_dimensions2() + * + * Audio: + * + * Decoders request a buffer of a particular size by setting + * AVFrame.nb_samples prior to calling get_buffer2(). The decoder may, + * however, utilize only part of the buffer by setting AVFrame.nb_samples + * to a smaller value in the output frame. + * + * As a convenience, av_samples_get_buffer_size() and + * av_samples_fill_arrays() in libavutil may be used by custom get_buffer2() + * functions to find the required data size and to fill data pointers and + * linesize. In AVFrame.linesize, only linesize[0] may be set for audio + * since all planes must be the same size. + * + * @see av_samples_get_buffer_size(), av_samples_fill_arrays() + * + * - encoding: unused + * - decoding: Set by libavcodec, user can override. + */ + int (*get_buffer2)(struct AVCodecContext *s, AVFrame *frame, int flags); + + /* - encoding parameters */ + /** + * number of bits the bitstream is allowed to diverge from the reference. + * the reference can be CBR (for CBR pass1) or VBR (for pass2) + * - encoding: Set by user; unused for constant quantizer encoding. + * - decoding: unused + */ + int bit_rate_tolerance; + + /** + * Global quality for codecs which cannot change it per frame. + * This should be proportional to MPEG-1/2/4 qscale. + * - encoding: Set by user. + * - decoding: unused + */ + int global_quality; + + /** + * - encoding: Set by user. + * - decoding: unused + */ + int compression_level; +#define FF_COMPRESSION_DEFAULT -1 + + float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0) + float qblur; ///< amount of qscale smoothing over time (0.0-1.0) + + /** + * minimum quantizer + * - encoding: Set by user. + * - decoding: unused + */ + int qmin; + + /** + * maximum quantizer + * - encoding: Set by user. + * - decoding: unused + */ + int qmax; + + /** + * maximum quantizer difference between frames + * - encoding: Set by user. + * - decoding: unused + */ + int max_qdiff; + + /** + * decoder bitstream buffer size + * - encoding: Set by user. + * - decoding: May be set by libavcodec. + */ + int rc_buffer_size; + + /** + * ratecontrol override, see RcOverride + * - encoding: Allocated/set/freed by user. + * - decoding: unused + */ + int rc_override_count; + RcOverride *rc_override; + + /** + * maximum bitrate + * - encoding: Set by user. + * - decoding: Set by user, may be overwritten by libavcodec. + */ + int64_t rc_max_rate; + + /** + * minimum bitrate + * - encoding: Set by user. + * - decoding: unused + */ + int64_t rc_min_rate; + + /** + * Ratecontrol attempt to use, at maximum, of what can be used without an underflow. + * - encoding: Set by user. + * - decoding: unused. + */ + float rc_max_available_vbv_use; + + /** + * Ratecontrol attempt to use, at least, times the amount needed to prevent a vbv overflow. + * - encoding: Set by user. + * - decoding: unused. + */ + float rc_min_vbv_overflow_use; + + /** + * Number of bits which should be loaded into the rc buffer before decoding starts. + * - encoding: Set by user. + * - decoding: unused + */ + int rc_initial_buffer_occupancy; + + /** + * trellis RD quantization + * - encoding: Set by user. + * - decoding: unused + */ + int trellis; + + /** + * pass1 encoding statistics output buffer + * - encoding: Set by libavcodec. + * - decoding: unused + */ + char *stats_out; + + /** + * pass2 encoding statistics input buffer + * Concatenated stuff from stats_out of pass1 should be placed here. + * - encoding: Allocated/set/freed by user. + * - decoding: unused + */ + char *stats_in; + + /** + * Work around bugs in encoders which sometimes cannot be detected automatically. + * - encoding: Set by user + * - decoding: Set by user + */ + int workaround_bugs; +#define FF_BUG_AUTODETECT 1 ///< autodetection +#define FF_BUG_XVID_ILACE 4 +#define FF_BUG_UMP4 8 +#define FF_BUG_NO_PADDING 16 +#define FF_BUG_AMV 32 +#define FF_BUG_QPEL_CHROMA 64 +#define FF_BUG_STD_QPEL 128 +#define FF_BUG_QPEL_CHROMA2 256 +#define FF_BUG_DIRECT_BLOCKSIZE 512 +#define FF_BUG_EDGE 1024 +#define FF_BUG_HPEL_CHROMA 2048 +#define FF_BUG_DC_CLIP 4096 +#define FF_BUG_MS 8192 ///< Work around various bugs in Microsoft's broken decoders. +#define FF_BUG_TRUNCATED 16384 +#define FF_BUG_IEDGE 32768 + + /** + * strictly follow the standard (MPEG-4, ...). + * - encoding: Set by user. + * - decoding: Set by user. + * Setting this to STRICT or higher means the encoder and decoder will + * generally do stupid things, whereas setting it to unofficial or lower + * will mean the encoder might produce output that is not supported by all + * spec-compliant decoders. Decoders don't differentiate between normal, + * unofficial and experimental (that is, they always try to decode things + * when they can) unless they are explicitly asked to behave stupidly + * (=strictly conform to the specs) + * This may only be set to one of the FF_COMPLIANCE_* values in defs.h. + */ + int strict_std_compliance; + + /** + * error concealment flags + * - encoding: unused + * - decoding: Set by user. + */ + int error_concealment; +#define FF_EC_GUESS_MVS 1 +#define FF_EC_DEBLOCK 2 +#define FF_EC_FAVOR_INTER 256 + + /** + * debug + * - encoding: Set by user. + * - decoding: Set by user. + */ + int debug; +#define FF_DEBUG_PICT_INFO 1 +#define FF_DEBUG_RC 2 +#define FF_DEBUG_BITSTREAM 4 +#define FF_DEBUG_MB_TYPE 8 +#define FF_DEBUG_QP 16 +#define FF_DEBUG_DCT_COEFF 0x00000040 +#define FF_DEBUG_SKIP 0x00000080 +#define FF_DEBUG_STARTCODE 0x00000100 +#define FF_DEBUG_ER 0x00000400 +#define FF_DEBUG_MMCO 0x00000800 +#define FF_DEBUG_BUGS 0x00001000 +#define FF_DEBUG_BUFFERS 0x00008000 +#define FF_DEBUG_THREADS 0x00010000 +#define FF_DEBUG_GREEN_MD 0x00800000 +#define FF_DEBUG_NOMC 0x01000000 + + /** + * Error recognition; may misdetect some more or less valid parts as errors. + * This is a bitfield of the AV_EF_* values defined in defs.h. + * + * - encoding: Set by user. + * - decoding: Set by user. + */ + int err_recognition; + + /** + * Hardware accelerator in use + * - encoding: unused. + * - decoding: Set by libavcodec + */ + const struct AVHWAccel *hwaccel; + + /** + * Legacy hardware accelerator context. + * + * For some hardware acceleration methods, the caller may use this field to + * signal hwaccel-specific data to the codec. The struct pointed to by this + * pointer is hwaccel-dependent and defined in the respective header. Please + * refer to the FFmpeg HW accelerator documentation to know how to fill + * this. + * + * In most cases this field is optional - the necessary information may also + * be provided to libavcodec through @ref hw_frames_ctx or @ref + * hw_device_ctx (see avcodec_get_hw_config()). However, in some cases it + * may be the only method of signalling some (optional) information. + * + * The struct and its contents are owned by the caller. + * + * - encoding: May be set by the caller before avcodec_open2(). Must remain + * valid until avcodec_free_context(). + * - decoding: May be set by the caller in the get_format() callback. + * Must remain valid until the next get_format() call, + * or avcodec_free_context() (whichever comes first). + */ + void *hwaccel_context; + + /** + * A reference to the AVHWFramesContext describing the input (for encoding) + * or output (decoding) frames. The reference is set by the caller and + * afterwards owned (and freed) by libavcodec - it should never be read by + * the caller after being set. + * + * - decoding: This field should be set by the caller from the get_format() + * callback. The previous reference (if any) will always be + * unreffed by libavcodec before the get_format() call. + * + * If the default get_buffer2() is used with a hwaccel pixel + * format, then this AVHWFramesContext will be used for + * allocating the frame buffers. + * + * - encoding: For hardware encoders configured to use a hwaccel pixel + * format, this field should be set by the caller to a reference + * to the AVHWFramesContext describing input frames. + * AVHWFramesContext.format must be equal to + * AVCodecContext.pix_fmt. + * + * This field should be set before avcodec_open2() is called. + */ + AVBufferRef *hw_frames_ctx; + + /** + * A reference to the AVHWDeviceContext describing the device which will + * be used by a hardware encoder/decoder. The reference is set by the + * caller and afterwards owned (and freed) by libavcodec. + * + * This should be used if either the codec device does not require + * hardware frames or any that are used are to be allocated internally by + * libavcodec. If the user wishes to supply any of the frames used as + * encoder input or decoder output then hw_frames_ctx should be used + * instead. When hw_frames_ctx is set in get_format() for a decoder, this + * field will be ignored while decoding the associated stream segment, but + * may again be used on a following one after another get_format() call. + * + * For both encoders and decoders this field should be set before + * avcodec_open2() is called and must not be written to thereafter. + * + * Note that some decoders may require this field to be set initially in + * order to support hw_frames_ctx at all - in that case, all frames + * contexts used must be created on the same device. + */ + AVBufferRef *hw_device_ctx; + + /** + * Bit set of AV_HWACCEL_FLAG_* flags, which affect hardware accelerated + * decoding (if active). + * - encoding: unused + * - decoding: Set by user (either before avcodec_open2(), or in the + * AVCodecContext.get_format callback) + */ + int hwaccel_flags; + + /** + * Video decoding only. Sets the number of extra hardware frames which + * the decoder will allocate for use by the caller. This must be set + * before avcodec_open2() is called. + * + * Some hardware decoders require all frames that they will use for + * output to be defined in advance before decoding starts. For such + * decoders, the hardware frame pool must therefore be of a fixed size. + * The extra frames set here are on top of any number that the decoder + * needs internally in order to operate normally (for example, frames + * used as reference pictures). + */ + int extra_hw_frames; + + /** + * error + * - encoding: Set by libavcodec if flags & AV_CODEC_FLAG_PSNR. + * - decoding: unused + */ + uint64_t error[AV_NUM_DATA_POINTERS]; + + /** + * DCT algorithm, see FF_DCT_* below + * - encoding: Set by user. + * - decoding: unused + */ + int dct_algo; +#define FF_DCT_AUTO 0 +#define FF_DCT_FASTINT 1 +#define FF_DCT_INT 2 +#define FF_DCT_MMX 3 +#define FF_DCT_ALTIVEC 5 +#define FF_DCT_FAAN 6 +#define FF_DCT_NEON 7 + + /** + * IDCT algorithm, see FF_IDCT_* below. + * - encoding: Set by user. + * - decoding: Set by user. + */ + int idct_algo; +#define FF_IDCT_AUTO 0 +#define FF_IDCT_INT 1 +#define FF_IDCT_SIMPLE 2 +#define FF_IDCT_SIMPLEMMX 3 +#define FF_IDCT_ARM 7 +#define FF_IDCT_ALTIVEC 8 +#define FF_IDCT_SIMPLEARM 10 +#define FF_IDCT_XVID 14 +#define FF_IDCT_SIMPLEARMV5TE 16 +#define FF_IDCT_SIMPLEARMV6 17 +#define FF_IDCT_FAAN 20 +#define FF_IDCT_SIMPLENEON 22 +#define FF_IDCT_SIMPLEAUTO 128 + + /** + * bits per sample/pixel from the demuxer (needed for huffyuv). + * - encoding: Set by libavcodec. + * - decoding: Set by user. + */ + int bits_per_coded_sample; + + /** + * Bits per sample/pixel of internal libavcodec pixel/sample format. + * - encoding: set by user. + * - decoding: set by libavcodec. + */ + int bits_per_raw_sample; + + /** + * thread count + * is used to decide how many independent tasks should be passed to execute() + * - encoding: Set by user. + * - decoding: Set by user. + */ + int thread_count; + + /** + * Which multithreading methods to use. + * Use of FF_THREAD_FRAME will increase decoding delay by one frame per thread, + * so clients which cannot provide future frames should not use it. + * + * - encoding: Set by user, otherwise the default is used. + * - decoding: Set by user, otherwise the default is used. + */ + int thread_type; +#define FF_THREAD_FRAME 1 ///< Decode more than one frame at once +#define FF_THREAD_SLICE 2 ///< Decode more than one part of a single frame at once + + /** + * Which multithreading methods are in use by the codec. + * - encoding: Set by libavcodec. + * - decoding: Set by libavcodec. + */ + int active_thread_type; + + /** + * The codec may call this to execute several independent things. + * It will return only after finishing all tasks. + * The user may replace this with some multithreaded implementation, + * the default implementation will execute the parts serially. + * @param count the number of things to execute + * - encoding: Set by libavcodec, user can override. + * - decoding: Set by libavcodec, user can override. + */ + int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size); + + /** + * The codec may call this to execute several independent things. + * It will return only after finishing all tasks. + * The user may replace this with some multithreaded implementation, + * the default implementation will execute the parts serially. + * @param c context passed also to func + * @param count the number of things to execute + * @param arg2 argument passed unchanged to func + * @param ret return values of executed functions, must have space for "count" values. May be NULL. + * @param func function that will be called count times, with jobnr from 0 to count-1. + * threadnr will be in the range 0 to c->thread_count-1 < MAX_THREADS and so that no + * two instances of func executing at the same time will have the same threadnr. + * @return always 0 currently, but code should handle a future improvement where when any call to func + * returns < 0 no further calls to func may be done and < 0 is returned. + * - encoding: Set by libavcodec, user can override. + * - decoding: Set by libavcodec, user can override. + */ + int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count); + + /** + * profile + * - encoding: Set by user. + * - decoding: Set by libavcodec. + * See the AV_PROFILE_* defines in defs.h. + */ + int profile; + + /** + * Encoding level descriptor. + * - encoding: Set by user, corresponds to a specific level defined by the + * codec, usually corresponding to the profile level, if not specified it + * is set to AV_LEVEL_UNKNOWN. + * - decoding: Set by libavcodec. + * See AV_LEVEL_* in defs.h. + */ + int level; + +#if FF_API_CODEC_PROPS + /** + * Properties of the stream that gets decoded + * - encoding: unused + * - decoding: set by libavcodec + */ + attribute_deprecated + unsigned properties; +#define FF_CODEC_PROPERTY_LOSSLESS 0x00000001 +#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS 0x00000002 +#define FF_CODEC_PROPERTY_FILM_GRAIN 0x00000004 +#endif + + /** + * Skip loop filtering for selected frames. + * - encoding: unused + * - decoding: Set by user. + */ + enum AVDiscard skip_loop_filter; + + /** + * Skip IDCT/dequantization for selected frames. + * - encoding: unused + * - decoding: Set by user. + */ + enum AVDiscard skip_idct; + + /** + * Skip decoding for selected frames. + * - encoding: unused + * - decoding: Set by user. + */ + enum AVDiscard skip_frame; + + /** + * Skip processing alpha if supported by codec. + * Note that if the format uses pre-multiplied alpha (common with VP6, + * and recommended due to better video quality/compression) + * the image will look as if alpha-blended onto a black background. + * However for formats that do not use pre-multiplied alpha + * there might be serious artefacts (though e.g. libswscale currently + * assumes pre-multiplied alpha anyway). + * + * - decoding: set by user + * - encoding: unused + */ + int skip_alpha; + + /** + * Number of macroblock rows at the top which are skipped. + * - encoding: unused + * - decoding: Set by user. + */ + int skip_top; + + /** + * Number of macroblock rows at the bottom which are skipped. + * - encoding: unused + * - decoding: Set by user. + */ + int skip_bottom; + + /** + * low resolution decoding, 1-> 1/2 size, 2->1/4 size + * - encoding: unused + * - decoding: Set by user. + */ + int lowres; + + /** + * AVCodecDescriptor + * - encoding: unused. + * - decoding: set by libavcodec. + */ + const struct AVCodecDescriptor *codec_descriptor; + + /** + * Character encoding of the input subtitles file. + * - decoding: set by user + * - encoding: unused + */ + char *sub_charenc; + + /** + * Subtitles character encoding mode. Formats or codecs might be adjusting + * this setting (if they are doing the conversion themselves for instance). + * - decoding: set by libavcodec + * - encoding: unused + */ + int sub_charenc_mode; +#define FF_SUB_CHARENC_MODE_DO_NOTHING -1 ///< do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for instance) +#define FF_SUB_CHARENC_MODE_AUTOMATIC 0 ///< libavcodec will select the mode itself +#define FF_SUB_CHARENC_MODE_PRE_DECODER 1 ///< the AVPacket data needs to be recoded to UTF-8 before being fed to the decoder, requires iconv +#define FF_SUB_CHARENC_MODE_IGNORE 2 ///< neither convert the subtitles, nor check them for valid UTF-8 + + /** + * Header containing style information for text subtitles. + * For SUBTITLE_ASS subtitle type, it should contain the whole ASS + * [Script Info] and [V4+ Styles] section, plus the [Events] line and + * the Format line following. It shouldn't include any Dialogue line. + * + * - encoding: May be set by the caller before avcodec_open2() to an array + * allocated with the av_malloc() family of functions. + * - decoding: May be set by libavcodec in avcodec_open2(). + * + * After being set, the array is owned by the codec and freed in + * avcodec_free_context(). + */ + int subtitle_header_size; + uint8_t *subtitle_header; + + /** + * dump format separator. + * can be ", " or "\n " or anything else + * - encoding: Set by user. + * - decoding: Set by user. + */ + uint8_t *dump_separator; + + /** + * ',' separated list of allowed decoders. + * If NULL then all are allowed + * - encoding: unused + * - decoding: set by user + */ + char *codec_whitelist; + + /** + * Additional data associated with the entire coded stream. + * + * - decoding: may be set by user before calling avcodec_open2(). + * - encoding: may be set by libavcodec after avcodec_open2(). + */ + AVPacketSideData *coded_side_data; + int nb_coded_side_data; + + /** + * Bit set of AV_CODEC_EXPORT_DATA_* flags, which affects the kind of + * metadata exported in frame, packet, or coded stream side data by + * decoders and encoders. + * + * - decoding: set by user + * - encoding: set by user + */ + int export_side_data; + + /** + * The number of pixels per image to maximally accept. + * + * - decoding: set by user + * - encoding: set by user + */ + int64_t max_pixels; + + /** + * Video decoding only. Certain video codecs support cropping, meaning that + * only a sub-rectangle of the decoded frame is intended for display. This + * option controls how cropping is handled by libavcodec. + * + * When set to 1 (the default), libavcodec will apply cropping internally. + * I.e. it will modify the output frame width/height fields and offset the + * data pointers (only by as much as possible while preserving alignment, or + * by the full amount if the AV_CODEC_FLAG_UNALIGNED flag is set) so that + * the frames output by the decoder refer only to the cropped area. The + * crop_* fields of the output frames will be zero. + * + * When set to 0, the width/height fields of the output frames will be set + * to the coded dimensions and the crop_* fields will describe the cropping + * rectangle. Applying the cropping is left to the caller. + * + * @warning When hardware acceleration with opaque output frames is used, + * libavcodec is unable to apply cropping from the top/left border. + * + * @note when this option is set to zero, the width/height fields of the + * AVCodecContext and output AVFrames have different meanings. The codec + * context fields store display dimensions (with the coded dimensions in + * coded_width/height), while the frame fields store the coded dimensions + * (with the display dimensions being determined by the crop_* fields). + */ + int apply_cropping; + + /** + * The percentage of damaged samples to discard a frame. + * + * - decoding: set by user + * - encoding: unused + */ + int discard_damaged_percentage; + + /** + * The number of samples per frame to maximally accept. + * + * - decoding: set by user + * - encoding: set by user + */ + int64_t max_samples; + + /** + * This callback is called at the beginning of each packet to get a data + * buffer for it. + * + * The following field will be set in the packet before this callback is + * called: + * - size + * This callback must use the above value to calculate the required buffer size, + * which must padded by at least AV_INPUT_BUFFER_PADDING_SIZE bytes. + * + * In some specific cases, the encoder may not use the entire buffer allocated by this + * callback. This will be reflected in the size value in the packet once returned by + * avcodec_receive_packet(). + * + * This callback must fill the following fields in the packet: + * - data: alignment requirements for AVPacket apply, if any. Some architectures and + * encoders may benefit from having aligned data. + * - buf: must contain a pointer to an AVBufferRef structure. The packet's + * data pointer must be contained in it. See: av_buffer_create(), av_buffer_alloc(), + * and av_buffer_ref(). + * + * If AV_CODEC_CAP_DR1 is not set then get_encode_buffer() must call + * avcodec_default_get_encode_buffer() instead of providing a buffer allocated by + * some other means. + * + * The flags field may contain a combination of AV_GET_ENCODE_BUFFER_FLAG_ flags. + * They may be used for example to hint what use the buffer may get after being + * created. + * Implementations of this callback may ignore flags they don't understand. + * If AV_GET_ENCODE_BUFFER_FLAG_REF is set in flags then the packet may be reused + * (read and/or written to if it is writable) later by libavcodec. + * + * This callback must be thread-safe, as when frame threading is used, it may + * be called from multiple threads simultaneously. + * + * @see avcodec_default_get_encode_buffer() + * + * - encoding: Set by libavcodec, user can override. + * - decoding: unused + */ + int (*get_encode_buffer)(struct AVCodecContext *s, AVPacket *pkt, int flags); + + /** + * Frame counter, set by libavcodec. + * + * - decoding: total number of frames returned from the decoder so far. + * - encoding: total number of frames passed to the encoder so far. + * + * @note the counter is not incremented if encoding/decoding resulted in + * an error. + */ + int64_t frame_num; + + /** + * Decoding only. May be set by the caller before avcodec_open2() to an + * av_malloc()'ed array (or via AVOptions). Owned and freed by the decoder + * afterwards. + * + * Side data attached to decoded frames may come from several sources: + * 1. coded_side_data, which the decoder will for certain types translate + * from packet-type to frame-type and attach to frames; + * 2. side data attached to an AVPacket sent for decoding (same + * considerations as above); + * 3. extracted from the coded bytestream. + * The first two cases are supplied by the caller and typically come from a + * container. + * + * This array configures decoder behaviour in cases when side data of the + * same type is present both in the coded bytestream and in the + * user-supplied side data (items 1. and 2. above). In all cases, at most + * one instance of each side data type will be attached to output frames. By + * default it will be the bytestream side data. Adding an + * AVPacketSideDataType value to this array will flip the preference for + * this type, thus making the decoder prefer user-supplied side data over + * bytestream. In case side data of the same type is present both in + * coded_data and attacked to a packet, the packet instance always has + * priority. + * + * The array may also contain a single -1, in which case the preference is + * switched for all side data types. + */ + int *side_data_prefer_packet; + /** + * Number of entries in side_data_prefer_packet. + */ + unsigned nb_side_data_prefer_packet; + + /** + * Array containing static side data, such as HDR10 CLL / MDCV structures. + * Side data entries should be allocated by usage of helpers defined in + * libavutil/frame.h. + * + * - encoding: may be set by user before calling avcodec_open2() for + * encoder configuration. Afterwards owned and freed by the + * encoder. + * - decoding: may be set by libavcodec in avcodec_open2(). + */ + AVFrameSideData **decoded_side_data; + int nb_decoded_side_data; + + /** + * Indicates how the alpha channel of the video is represented. + * - encoding: Set by user + * - decoding: Set by libavcodec + */ + enum AVAlphaMode alpha_mode; +} AVCodecContext; + +/** + * @defgroup lavc_hwaccel AVHWAccel + * + * @note Nothing in this structure should be accessed by the user. At some + * point in future it will not be externally visible at all. + * + * @{ + */ +typedef struct AVHWAccel { + /** + * Name of the hardware accelerated codec. + * The name is globally unique among encoders and among decoders (but an + * encoder and a decoder can share the same name). + */ + const char *name; + + /** + * Type of codec implemented by the hardware accelerator. + * + * See AVMEDIA_TYPE_xxx + */ + enum AVMediaType type; + + /** + * Codec implemented by the hardware accelerator. + * + * See AV_CODEC_ID_xxx + */ + enum AVCodecID id; + + /** + * Supported pixel format. + * + * Only hardware accelerated formats are supported here. + */ + enum AVPixelFormat pix_fmt; + + /** + * Hardware accelerated codec capabilities. + * see AV_HWACCEL_CODEC_CAP_* + */ + int capabilities; +} AVHWAccel; + +/** + * HWAccel is experimental and is thus avoided in favor of non experimental + * codecs + */ +#define AV_HWACCEL_CODEC_CAP_EXPERIMENTAL 0x0200 + +/** + * Hardware acceleration should be used for decoding even if the codec level + * used is unknown or higher than the maximum supported level reported by the + * hardware driver. + * + * It's generally a good idea to pass this flag unless you have a specific + * reason not to, as hardware tends to under-report supported levels. + */ +#define AV_HWACCEL_FLAG_IGNORE_LEVEL (1 << 0) + +/** + * Hardware acceleration can output YUV pixel formats with a different chroma + * sampling than 4:2:0 and/or other than 8 bits per component. + */ +#define AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH (1 << 1) + +/** + * Hardware acceleration should still be attempted for decoding when the + * codec profile does not match the reported capabilities of the hardware. + * + * For example, this can be used to try to decode baseline profile H.264 + * streams in hardware - it will often succeed, because many streams marked + * as baseline profile actually conform to constrained baseline profile. + * + * @warning If the stream is actually not supported then the behaviour is + * undefined, and may include returning entirely incorrect output + * while indicating success. + */ +#define AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH (1 << 2) + +/** + * Some hardware decoders (namely nvdec) can either output direct decoder + * surfaces, or make an on-device copy and return said copy. + * There is a hard limit on how many decoder surfaces there can be, and it + * cannot be accurately guessed ahead of time. + * For some processing chains, this can be okay, but others will run into the + * limit and in turn produce very confusing errors that require fine tuning of + * more or less obscure options by the user, or in extreme cases cannot be + * resolved at all without inserting an avfilter that forces a copy. + * + * Thus, the hwaccel will by default make a copy for safety and resilience. + * If a users really wants to minimize the amount of copies, they can set this + * flag and ensure their processing chain does not exhaust the surface pool. + */ +#define AV_HWACCEL_FLAG_UNSAFE_OUTPUT (1 << 3) + +/** + * @} + */ + +enum AVSubtitleType { + SUBTITLE_NONE, + + SUBTITLE_BITMAP, ///< A bitmap, pict will be set + + /** + * Plain text, the text field must be set by the decoder and is + * authoritative. ass and pict fields may contain approximations. + */ + SUBTITLE_TEXT, + + /** + * Formatted text, the ass field must be set by the decoder and is + * authoritative. pict and text fields may contain approximations. + */ + SUBTITLE_ASS, +}; + +#define AV_SUBTITLE_FLAG_FORCED 0x00000001 + +typedef struct AVSubtitleRect { + int x; ///< top left corner of pict, undefined when pict is not set + int y; ///< top left corner of pict, undefined when pict is not set + int w; ///< width of pict, undefined when pict is not set + int h; ///< height of pict, undefined when pict is not set + int nb_colors; ///< number of colors in pict, undefined when pict is not set + + /** + * data+linesize for the bitmap of this subtitle. + * Can be set for text/ass as well once they are rendered. + */ + uint8_t *data[4]; + int linesize[4]; + + int flags; + enum AVSubtitleType type; + + char *text; ///< 0 terminated plain UTF-8 text + + /** + * 0 terminated ASS/SSA compatible event line. + * The presentation of this is unaffected by the other values in this + * struct. + */ + char *ass; +} AVSubtitleRect; + +typedef struct AVSubtitle { + uint16_t format; /* 0 = graphics */ + uint32_t start_display_time; /* relative to packet pts, in ms */ + uint32_t end_display_time; /* relative to packet pts, in ms */ + unsigned num_rects; + AVSubtitleRect **rects; + int64_t pts; ///< Same as packet pts, in AV_TIME_BASE +} AVSubtitle; + +/** + * Return the LIBAVCODEC_VERSION_INT constant. + */ +unsigned avcodec_version(void); + +/** + * Return the libavcodec build-time configuration. + */ +const char *avcodec_configuration(void); + +/** + * Return the libavcodec license. + */ +const char *avcodec_license(void); + +/** + * Allocate an AVCodecContext and set its fields to default values. The + * resulting struct should be freed with avcodec_free_context(). + * + * @param codec if non-NULL, allocate private data and initialize defaults + * for the given codec. It is illegal to then call avcodec_open2() + * with a different codec. + * If NULL, then the codec-specific defaults won't be initialized, + * which may result in suboptimal default settings (this is + * important mainly for encoders, e.g. libx264). + * + * @return An AVCodecContext filled with default values or NULL on failure. + */ +AVCodecContext *avcodec_alloc_context3(const AVCodec *codec); + +/** + * Free the codec context and everything associated with it and write NULL to + * the provided pointer. + */ +void avcodec_free_context(AVCodecContext **avctx); + +/** + * Get the AVClass for AVCodecContext. It can be used in combination with + * AV_OPT_SEARCH_FAKE_OBJ for examining options. + * + * @see av_opt_find(). + */ +const AVClass *avcodec_get_class(void); + +/** + * Get the AVClass for AVSubtitleRect. It can be used in combination with + * AV_OPT_SEARCH_FAKE_OBJ for examining options. + * + * @see av_opt_find(). + */ +const AVClass *avcodec_get_subtitle_rect_class(void); + +/** + * Fill the parameters struct based on the values from the supplied codec + * context. Any allocated fields in par are freed and replaced with duplicates + * of the corresponding fields in codec. + * + * @return >= 0 on success, a negative AVERROR code on failure + */ +int avcodec_parameters_from_context(struct AVCodecParameters *par, + const AVCodecContext *codec); + +/** + * Fill the codec context based on the values from the supplied codec + * parameters. Any allocated fields in codec that have a corresponding field in + * par are freed and replaced with duplicates of the corresponding field in par. + * Fields in codec that do not have a counterpart in par are not touched. + * + * @return >= 0 on success, a negative AVERROR code on failure. + */ +int avcodec_parameters_to_context(AVCodecContext *codec, + const struct AVCodecParameters *par); + +/** + * Initialize the AVCodecContext to use the given AVCodec. Prior to using this + * function the context has to be allocated with avcodec_alloc_context3(). + * + * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), + * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for + * retrieving a codec. + * + * Depending on the codec, you might need to set options in the codec context + * also for decoding (e.g. width, height, or the pixel or audio sample format in + * the case the information is not available in the bitstream, as when decoding + * raw audio or video). + * + * Options in the codec context can be set either by setting them in the options + * AVDictionary, or by setting the values in the context itself, directly or by + * using the av_opt_set() API before calling this function. + * + * Example: + * @code + * av_dict_set(&opts, "b", "2.5M", 0); + * codec = avcodec_find_decoder(AV_CODEC_ID_H264); + * if (!codec) + * exit(1); + * + * context = avcodec_alloc_context3(codec); + * + * if (avcodec_open2(context, codec, opts) < 0) + * exit(1); + * @endcode + * + * In the case AVCodecParameters are available (e.g. when demuxing a stream + * using libavformat, and accessing the AVStream contained in the demuxer), the + * codec parameters can be copied to the codec context using + * avcodec_parameters_to_context(), as in the following example: + * + * @code + * AVStream *stream = ...; + * context = avcodec_alloc_context3(codec); + * if (avcodec_parameters_to_context(context, stream->codecpar) < 0) + * exit(1); + * if (avcodec_open2(context, codec, NULL) < 0) + * exit(1); + * @endcode + * + * @note Always call this function before using decoding routines (such as + * @ref avcodec_receive_frame()). + * + * @param avctx The context to initialize. + * @param codec The codec to open this context for. If a non-NULL codec has been + * previously passed to avcodec_alloc_context3() or + * for this context, then this parameter MUST be either NULL or + * equal to the previously passed codec. + * @param options A dictionary filled with AVCodecContext and codec-private + * options, which are set on top of the options already set in + * avctx, can be NULL. On return this object will be filled with + * options that were not found in the avctx codec context. + * + * @return zero on success, a negative value on error + * @see avcodec_alloc_context3(), avcodec_find_decoder(), avcodec_find_encoder(), + * av_dict_set(), av_opt_set(), av_opt_find(), avcodec_parameters_to_context() + */ +int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options); + +/** + * Free all allocated data in the given subtitle struct. + * + * @param sub AVSubtitle to free. + */ +void avsubtitle_free(AVSubtitle *sub); + +/** + * @} + */ + +/** + * @addtogroup lavc_decoding + * @{ + */ + +/** + * The default callback for AVCodecContext.get_buffer2(). It is made public so + * it can be called by custom get_buffer2() implementations for decoders without + * AV_CODEC_CAP_DR1 set. + */ +int avcodec_default_get_buffer2(AVCodecContext *s, AVFrame *frame, int flags); + +/** + * The default callback for AVCodecContext.get_encode_buffer(). It is made public so + * it can be called by custom get_encode_buffer() implementations for encoders without + * AV_CODEC_CAP_DR1 set. + */ +int avcodec_default_get_encode_buffer(AVCodecContext *s, AVPacket *pkt, int flags); + +/** + * Modify width and height values so that they will result in a memory + * buffer that is acceptable for the codec if you do not use any horizontal + * padding. + * + * May only be used if a codec with AV_CODEC_CAP_DR1 has been opened. + */ +void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height); + +/** + * Modify width and height values so that they will result in a memory + * buffer that is acceptable for the codec if you also ensure that all + * line sizes are a multiple of the respective linesize_align[i]. + * + * May only be used if a codec with AV_CODEC_CAP_DR1 has been opened. + */ +void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, + int linesize_align[AV_NUM_DATA_POINTERS]); + +/** + * Decode a subtitle message. + * Return a negative value on error, otherwise return the number of bytes used. + * If no subtitle could be decompressed, got_sub_ptr is zero. + * Otherwise, the subtitle is stored in *sub. + * Note that AV_CODEC_CAP_DR1 is not available for subtitle codecs. This is for + * simplicity, because the performance difference is expected to be negligible + * and reusing a get_buffer written for video codecs would probably perform badly + * due to a potentially very different allocation pattern. + * + * Some decoders (those marked with AV_CODEC_CAP_DELAY) have a delay between input + * and output. This means that for some packets they will not immediately + * produce decoded output and need to be flushed at the end of decoding to get + * all the decoded data. Flushing is done by calling this function with packets + * with avpkt->data set to NULL and avpkt->size set to 0 until it stops + * returning subtitles. It is safe to flush even those decoders that are not + * marked with AV_CODEC_CAP_DELAY, then no subtitles will be returned. + * + * @note The AVCodecContext MUST have been opened with @ref avcodec_open2() + * before packets may be fed to the decoder. + * + * @param avctx the codec context + * @param[out] sub The preallocated AVSubtitle in which the decoded subtitle will be stored, + * must be freed with avsubtitle_free if *got_sub_ptr is set. + * @param[in,out] got_sub_ptr Zero if no subtitle could be decompressed, otherwise, it is nonzero. + * @param[in] avpkt The input AVPacket containing the input buffer. + */ +int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, + int *got_sub_ptr, const AVPacket *avpkt); + +/** + * Supply raw packet data as input to a decoder. + * + * Internally, this call will copy relevant AVCodecContext fields, which can + * influence decoding per-packet, and apply them when the packet is actually + * decoded. (For example AVCodecContext.skip_frame, which might direct the + * decoder to drop the frame contained by the packet sent with this function.) + * + * @warning The input buffer, avpkt->data must be AV_INPUT_BUFFER_PADDING_SIZE + * larger than the actual read bytes because some optimized bitstream + * readers read 32 or 64 bits at once and could read over the end. + * + * @note The AVCodecContext MUST have been opened with @ref avcodec_open2() + * before packets may be fed to the decoder. + * + * @param avctx codec context + * @param[in] avpkt The input AVPacket. Usually, this will be a single video + * frame, or several complete audio frames. + * Ownership of the packet remains with the caller, and the + * decoder will not write to the packet. The decoder may create + * a reference to the packet data (or copy it if the packet is + * not reference-counted). + * Unlike with older APIs, the packet is always fully consumed, + * and if it contains multiple frames (e.g. some audio codecs), + * will require you to call avcodec_receive_frame() multiple + * times afterwards before you can send a new packet. + * It can be NULL (or an AVPacket with data set to NULL and + * size set to 0); in this case, it is considered a flush + * packet, which signals the end of the stream. Sending the + * first flush packet will return success. Subsequent ones are + * unnecessary and will return AVERROR_EOF. If the decoder + * still has frames buffered, it will return them after sending + * a flush packet. + * + * @retval 0 success + * @retval AVERROR(EAGAIN) input is not accepted in the current state - user + * must read output with avcodec_receive_frame() (once + * all output is read, the packet should be resent, + * and the call will not fail with EAGAIN). + * @retval AVERROR_EOF the decoder has been flushed, and no new packets can be + * sent to it (also returned if more than 1 flush + * packet is sent) + * @retval AVERROR(EINVAL) codec not opened, it is an encoder, or requires flush + * @retval AVERROR(ENOMEM) failed to add packet to internal queue, or similar + * @retval "another negative error code" legitimate decoding errors + */ +int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt); + +/** + * Return decoded output data from a decoder or encoder (when the + * @ref AV_CODEC_FLAG_RECON_FRAME flag is used). + * + * @param avctx codec context + * @param frame This will be set to a reference-counted video or audio + * frame (depending on the decoder type) allocated by the + * codec. Note that the function will always call + * av_frame_unref(frame) before doing anything else. + * @param flags Combination of AV_CODEC_RECEIVE_FRAME_FLAG_* flags. + * + * @retval 0 success, a frame was returned + * @retval AVERROR(EAGAIN) output is not available in this state - user must + * try to send new input + * @retval AVERROR_EOF the codec has been fully flushed, and there will be + * no more output frames + * @retval AVERROR(EINVAL) codec not opened, or it is an encoder without the + * @ref AV_CODEC_FLAG_RECON_FRAME flag enabled + * @retval "other negative error code" legitimate decoding errors + */ +int avcodec_receive_frame_flags(AVCodecContext *avctx, AVFrame *frame, unsigned flags); + +/** + * Alias for `avcodec_receive_frame_flags(avctx, frame, 0)`. + */ +int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame); + +/** + * Supply a raw video or audio frame to the encoder. Use avcodec_receive_packet() + * to retrieve buffered output packets. + * + * @param avctx codec context + * @param[in] frame AVFrame containing the raw audio or video frame to be encoded. + * Ownership of the frame remains with the caller, and the + * encoder will not write to the frame. The encoder may create + * a reference to the frame data (or copy it if the frame is + * not reference-counted). + * It can be NULL, in which case it is considered a flush + * packet. This signals the end of the stream. If the encoder + * still has packets buffered, it will return them after this + * call. Once flushing mode has been entered, additional flush + * packets are ignored, and sending frames will return + * AVERROR_EOF. + * + * For audio: + * If AV_CODEC_CAP_VARIABLE_FRAME_SIZE is set, then each frame + * can have any number of samples. + * If it is not set, frame->nb_samples must be equal to + * avctx->frame_size for all frames except the last. + * The final frame may be smaller than avctx->frame_size. + * @retval 0 success + * @retval AVERROR(EAGAIN) input is not accepted in the current state - user must + * read output with avcodec_receive_packet() (once all + * output is read, the packet should be resent, and the + * call will not fail with EAGAIN). + * @retval AVERROR_EOF the encoder has been flushed, and no new frames can + * be sent to it + * @retval AVERROR(EINVAL) codec not opened, it is a decoder, or requires flush + * @retval AVERROR(ENOMEM) failed to add packet to internal queue, or similar + * @retval "another negative error code" legitimate encoding errors + */ +int avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame); + +/** + * Read encoded data from the encoder. + * + * @param avctx codec context + * @param avpkt This will be set to a reference-counted packet allocated by the + * encoder. Note that the function will always call + * av_packet_unref(avpkt) before doing anything else. + * @retval 0 success + * @retval AVERROR(EAGAIN) output is not available in the current state - user must + * try to send input + * @retval AVERROR_EOF the encoder has been fully flushed, and there will be no + * more output packets + * @retval AVERROR(EINVAL) codec not opened, or it is a decoder + * @retval "another negative error code" legitimate encoding errors + */ +int avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt); + +/** + * Create and return a AVHWFramesContext with values adequate for hardware + * decoding. This is meant to get called from the get_format callback, and is + * a helper for preparing a AVHWFramesContext for AVCodecContext.hw_frames_ctx. + * This API is for decoding with certain hardware acceleration modes/APIs only. + * + * The returned AVHWFramesContext is not initialized. The caller must do this + * with av_hwframe_ctx_init(). + * + * Calling this function is not a requirement, but makes it simpler to avoid + * codec or hardware API specific details when manually allocating frames. + * + * Alternatively to this, an API user can set AVCodecContext.hw_device_ctx, + * which sets up AVCodecContext.hw_frames_ctx fully automatically, and makes + * it unnecessary to call this function or having to care about + * AVHWFramesContext initialization at all. + * + * There are a number of requirements for calling this function: + * + * - It must be called from get_format with the same avctx parameter that was + * passed to get_format. Calling it outside of get_format is not allowed, and + * can trigger undefined behavior. + * - The function is not always supported (see description of return values). + * Even if this function returns successfully, hwaccel initialization could + * fail later. (The degree to which implementations check whether the stream + * is actually supported varies. Some do this check only after the user's + * get_format callback returns.) + * - The hw_pix_fmt must be one of the choices suggested by get_format. If the + * user decides to use a AVHWFramesContext prepared with this API function, + * the user must return the same hw_pix_fmt from get_format. + * - The device_ref passed to this function must support the given hw_pix_fmt. + * - After calling this API function, it is the user's responsibility to + * initialize the AVHWFramesContext (returned by the out_frames_ref parameter), + * and to set AVCodecContext.hw_frames_ctx to it. If done, this must be done + * before returning from get_format (this is implied by the normal + * AVCodecContext.hw_frames_ctx API rules). + * - The AVHWFramesContext parameters may change every time time get_format is + * called. Also, AVCodecContext.hw_frames_ctx is reset before get_format. So + * you are inherently required to go through this process again on every + * get_format call. + * - It is perfectly possible to call this function without actually using + * the resulting AVHWFramesContext. One use-case might be trying to reuse a + * previously initialized AVHWFramesContext, and calling this API function + * only to test whether the required frame parameters have changed. + * - Fields that use dynamically allocated values of any kind must not be set + * by the user unless setting them is explicitly allowed by the documentation. + * If the user sets AVHWFramesContext.free and AVHWFramesContext.user_opaque, + * the new free callback must call the potentially set previous free callback. + * This API call may set any dynamically allocated fields, including the free + * callback. + * + * The function will set at least the following fields on AVHWFramesContext + * (potentially more, depending on hwaccel API): + * + * - All fields set by av_hwframe_ctx_alloc(). + * - Set the format field to hw_pix_fmt. + * - Set the sw_format field to the most suited and most versatile format. (An + * implication is that this will prefer generic formats over opaque formats + * with arbitrary restrictions, if possible.) + * - Set the width/height fields to the coded frame size, rounded up to the + * API-specific minimum alignment. + * - Only _if_ the hwaccel requires a pre-allocated pool: set the initial_pool_size + * field to the number of maximum reference surfaces possible with the codec, + * plus 1 surface for the user to work (meaning the user can safely reference + * at most 1 decoded surface at a time), plus additional buffering introduced + * by frame threading. If the hwaccel does not require pre-allocation, the + * field is left to 0, and the decoder will allocate new surfaces on demand + * during decoding. + * - Possibly AVHWFramesContext.hwctx fields, depending on the underlying + * hardware API. + * + * Essentially, out_frames_ref returns the same as av_hwframe_ctx_alloc(), but + * with basic frame parameters set. + * + * The function is stateless, and does not change the AVCodecContext or the + * device_ref AVHWDeviceContext. + * + * @param avctx The context which is currently calling get_format, and which + * implicitly contains all state needed for filling the returned + * AVHWFramesContext properly. + * @param device_ref A reference to the AVHWDeviceContext describing the device + * which will be used by the hardware decoder. + * @param hw_pix_fmt The hwaccel format you are going to return from get_format. + * @param out_frames_ref On success, set to a reference to an _uninitialized_ + * AVHWFramesContext, created from the given device_ref. + * Fields will be set to values required for decoding. + * Not changed if an error is returned. + * @return zero on success, a negative value on error. The following error codes + * have special semantics: + * AVERROR(ENOENT): the decoder does not support this functionality. Setup + * is always manual, or it is a decoder which does not + * support setting AVCodecContext.hw_frames_ctx at all, + * or it is a software format. + * AVERROR(EINVAL): it is known that hardware decoding is not supported for + * this configuration, or the device_ref is not supported + * for the hwaccel referenced by hw_pix_fmt. + */ +int avcodec_get_hw_frames_parameters(AVCodecContext *avctx, + AVBufferRef *device_ref, + enum AVPixelFormat hw_pix_fmt, + AVBufferRef **out_frames_ref); + +enum AVCodecConfig { + AV_CODEC_CONFIG_PIX_FORMAT, ///< AVPixelFormat, terminated by AV_PIX_FMT_NONE + AV_CODEC_CONFIG_FRAME_RATE, ///< AVRational, terminated by {0, 0} + AV_CODEC_CONFIG_SAMPLE_RATE, ///< int, terminated by 0 + AV_CODEC_CONFIG_SAMPLE_FORMAT, ///< AVSampleFormat, terminated by AV_SAMPLE_FMT_NONE + AV_CODEC_CONFIG_CHANNEL_LAYOUT, ///< AVChannelLayout, terminated by {0} + AV_CODEC_CONFIG_COLOR_RANGE, ///< AVColorRange, terminated by AVCOL_RANGE_UNSPECIFIED + AV_CODEC_CONFIG_COLOR_SPACE, ///< AVColorSpace, terminated by AVCOL_SPC_UNSPECIFIED + AV_CODEC_CONFIG_ALPHA_MODE, ///< AVAlphaMode, terminated by AVALPHA_MODE_UNSPECIFIED +}; + +/** + * Retrieve a list of all supported values for a given configuration type. + * + * @param avctx An optional context to use. Values such as + * `strict_std_compliance` may affect the result. If NULL, + * default values are used. + * @param codec The codec to query, or NULL to use avctx->codec. + * @param config The configuration to query. + * @param flags Currently unused; should be set to zero. + * @param out_configs On success, set to a list of configurations, terminated + * by a config-specific terminator, or NULL if all + * possible values are supported. + * @param out_num_configs On success, set to the number of elements in + *out_configs, excluding the terminator. Optional. + */ +int avcodec_get_supported_config(const AVCodecContext *avctx, + const AVCodec *codec, enum AVCodecConfig config, + unsigned flags, const void **out_configs, + int *out_num_configs); + + + +/** + * @defgroup lavc_parsing Frame parsing + * @{ + */ + +enum AVPictureStructure { + AV_PICTURE_STRUCTURE_UNKNOWN, ///< unknown + AV_PICTURE_STRUCTURE_TOP_FIELD, ///< coded as top field + AV_PICTURE_STRUCTURE_BOTTOM_FIELD, ///< coded as bottom field + AV_PICTURE_STRUCTURE_FRAME, ///< coded as frame +}; + +typedef struct AVCodecParserContext { + void *priv_data; + const struct AVCodecParser *parser; + int64_t frame_offset; /* offset of the current frame */ + int64_t cur_offset; /* current offset + (incremented by each av_parser_parse()) */ + int64_t next_frame_offset; /* offset of the next frame */ + /* video info */ + int pict_type; /* XXX: Put it back in AVCodecContext. */ + /** + * This field is used for proper frame duration computation in lavf. + * It signals, how much longer the frame duration of the current frame + * is compared to normal frame duration. + * + * frame_duration = (1 + repeat_pict) * time_base + * + * It is used by codecs like H.264 to display telecined material. + */ + int repeat_pict; /* XXX: Put it back in AVCodecContext. */ + int64_t pts; /* pts of the current frame */ + int64_t dts; /* dts of the current frame */ + + /* private data */ + int64_t last_pts; + int64_t last_dts; + int fetch_timestamp; + +#define AV_PARSER_PTS_NB 4 + int cur_frame_start_index; + int64_t cur_frame_offset[AV_PARSER_PTS_NB]; + int64_t cur_frame_pts[AV_PARSER_PTS_NB]; + int64_t cur_frame_dts[AV_PARSER_PTS_NB]; + + int flags; +#define PARSER_FLAG_COMPLETE_FRAMES 0x0001 +#define PARSER_FLAG_ONCE 0x0002 +/// Set if the parser has a valid file offset +#define PARSER_FLAG_FETCHED_OFFSET 0x0004 +#define PARSER_FLAG_USE_CODEC_TS 0x1000 + + int64_t offset; ///< byte offset from starting packet start + int64_t cur_frame_end[AV_PARSER_PTS_NB]; + + /** + * Set by parser to 1 for key frames and 0 for non-key frames. + * It is initialized to -1, so if the parser doesn't set this flag, + * old-style fallback using AV_PICTURE_TYPE_I picture type as key frames + * will be used. + */ + int key_frame; + + // Timestamp generation support: + /** + * Synchronization point for start of timestamp generation. + * + * Set to >0 for sync point, 0 for no sync point and <0 for undefined + * (default). + * + * For example, this corresponds to presence of H.264 buffering period + * SEI message. + */ + int dts_sync_point; + + /** + * Offset of the current timestamp against last timestamp sync point in + * units of AVCodecContext.time_base. + * + * Set to INT_MIN when dts_sync_point unused. Otherwise, it must + * contain a valid timestamp offset. + * + * Note that the timestamp of sync point has usually a nonzero + * dts_ref_dts_delta, which refers to the previous sync point. Offset of + * the next frame after timestamp sync point will be usually 1. + * + * For example, this corresponds to H.264 cpb_removal_delay. + */ + int dts_ref_dts_delta; + + /** + * Presentation delay of current frame in units of AVCodecContext.time_base. + * + * Set to INT_MIN when dts_sync_point unused. Otherwise, it must + * contain valid non-negative timestamp delta (presentation time of a frame + * must not lie in the past). + * + * This delay represents the difference between decoding and presentation + * time of the frame. + * + * For example, this corresponds to H.264 dpb_output_delay. + */ + int pts_dts_delta; + + /** + * Position of the packet in file. + * + * Analogous to cur_frame_pts/dts + */ + int64_t cur_frame_pos[AV_PARSER_PTS_NB]; + + /** + * Byte position of currently parsed frame in stream. + */ + int64_t pos; + + /** + * Previous frame byte position. + */ + int64_t last_pos; + + /** + * Duration of the current frame. + * For audio, this is in units of 1 / AVCodecContext.sample_rate. + * For all other types, this is in units of AVCodecContext.time_base. + */ + int duration; + + enum AVFieldOrder field_order; + + /** + * Indicate whether a picture is coded as a frame, top field or bottom field. + * + * For example, H.264 field_pic_flag equal to 0 corresponds to + * AV_PICTURE_STRUCTURE_FRAME. An H.264 picture with field_pic_flag + * equal to 1 and bottom_field_flag equal to 0 corresponds to + * AV_PICTURE_STRUCTURE_TOP_FIELD. + */ + enum AVPictureStructure picture_structure; + + /** + * Picture number incremented in presentation or output order. + * This field may be reinitialized at the first picture of a new sequence. + * + * For example, this corresponds to H.264 PicOrderCnt. + */ + int output_picture_number; + + /** + * Dimensions of the decoded video intended for presentation. + */ + int width; + int height; + + /** + * Dimensions of the coded video. + */ + int coded_width; + int coded_height; + + /** + * The format of the coded data, corresponds to enum AVPixelFormat for video + * and for enum AVSampleFormat for audio. + * + * Note that a decoder can have considerable freedom in how exactly it + * decodes the data, so the format reported here might be different from the + * one returned by a decoder. + */ + int format; +} AVCodecParserContext; + +typedef struct AVCodecParser { +#if FF_API_PARSER_CODECID + int codec_ids[7]; /* several codec IDs are permitted */ +#else + enum AVCodecID codec_ids[7]; /* several codec IDs are permitted */ +#endif +#if FF_API_PARSER_PRIVATE + /***************************************************************** + * All fields below this line are not part of the public API. They + * may not be used outside of libavcodec and can be changed and + * removed at will. + * New public fields should be added right above. + ***************************************************************** + */ + attribute_deprecated + int priv_data_size; + attribute_deprecated + int (*parser_init)(AVCodecParserContext *s); + /* This callback never returns an error, a negative value means that + * the frame start was in a previous packet. */ + attribute_deprecated + int (*parser_parse)(AVCodecParserContext *s, + AVCodecContext *avctx, + const uint8_t **poutbuf, int *poutbuf_size, + const uint8_t *buf, int buf_size); + attribute_deprecated + void (*parser_close)(AVCodecParserContext *s); + attribute_deprecated + int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size); +#endif +} AVCodecParser; + +/** + * Iterate over all registered codec parsers. + * + * @param opaque a pointer where libavcodec will store the iteration state. Must + * point to NULL to start the iteration. + * + * @return the next registered codec parser or NULL when the iteration is + * finished + */ +const AVCodecParser *av_parser_iterate(void **opaque); + +#if FF_API_PARSER_CODECID +AVCodecParserContext *av_parser_init(int codec_id); +#else +AVCodecParserContext *av_parser_init(enum AVCodecID codec_id); +#endif + +/** + * Parse a packet. + * + * @param s parser context. + * @param avctx codec context. + * @param poutbuf set to pointer to parsed buffer or NULL if not yet finished. + * @param poutbuf_size set to size of parsed buffer or zero if not yet finished. + * @param buf input buffer. + * @param buf_size buffer size in bytes without the padding. I.e. the full buffer + size is assumed to be buf_size + AV_INPUT_BUFFER_PADDING_SIZE. + To signal EOF, this should be 0 (so that the last frame + can be output). + * @param pts input presentation timestamp. + * @param dts input decoding timestamp. + * @param pos input byte position in stream. + * @return the number of bytes of the input bitstream used. + * + * Example: + * @code + * while(in_len){ + * len = av_parser_parse2(myparser, AVCodecContext, &data, &size, + * in_data, in_len, + * pts, dts, pos); + * in_data += len; + * in_len -= len; + * + * if(size) + * decode_frame(data, size); + * } + * @endcode + */ +int av_parser_parse2(AVCodecParserContext *s, + AVCodecContext *avctx, + uint8_t **poutbuf, int *poutbuf_size, + const uint8_t *buf, int buf_size, + int64_t pts, int64_t dts, + int64_t pos); + +void av_parser_close(AVCodecParserContext *s); + +/** + * @} + * @} + */ + +/** + * @addtogroup lavc_encoding + * @{ + */ + +int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, + const AVSubtitle *sub); + + +/** + * @} + */ + +/** + * @defgroup lavc_misc Utility functions + * @ingroup libavc + * + * Miscellaneous utility functions related to both encoding and decoding + * (or neither). + * @{ + */ + +/** + * @defgroup lavc_misc_pixfmt Pixel formats + * + * Functions for working with pixel formats. + * @{ + */ + +/** + * Return a value representing the fourCC code associated to the + * pixel format pix_fmt, or 0 if no associated fourCC code can be + * found. + */ +unsigned int avcodec_pix_fmt_to_codec_tag(enum AVPixelFormat pix_fmt); + +/** + * Find the best pixel format to convert to given a certain source pixel + * format. When converting from one pixel format to another, information loss + * may occur. For example, when converting from RGB24 to GRAY, the color + * information will be lost. Similarly, other losses occur when converting from + * some formats to other formats. avcodec_find_best_pix_fmt_of_2() searches which of + * the given pixel formats should be used to suffer the least amount of loss. + * The pixel formats from which it chooses one, are determined by the + * pix_fmt_list parameter. + * + * + * @param[in] pix_fmt_list AV_PIX_FMT_NONE terminated array of pixel formats to choose from + * @param[in] src_pix_fmt source pixel format + * @param[in] has_alpha Whether the source pixel format alpha channel is used. + * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur. + * @return The best pixel format to convert to or -1 if none was found. + */ +enum AVPixelFormat avcodec_find_best_pix_fmt_of_list(const enum AVPixelFormat *pix_fmt_list, + enum AVPixelFormat src_pix_fmt, + int has_alpha, int *loss_ptr); + +enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat * fmt); + +/** + * @} + */ + +void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode); + +int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size); +int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count); +//FIXME func typedef + +/** + * Fill AVFrame audio data and linesize pointers. + * + * The buffer buf must be a preallocated buffer with a size big enough + * to contain the specified samples amount. The filled AVFrame data + * pointers will point to this buffer. + * + * AVFrame extended_data channel pointers are allocated if necessary for + * planar audio. + * + * @param frame the AVFrame + * frame->nb_samples must be set prior to calling the + * function. This function fills in frame->data, + * frame->extended_data, frame->linesize[0]. + * @param nb_channels channel count + * @param sample_fmt sample format + * @param buf buffer to use for frame data + * @param buf_size size of buffer + * @param align plane size sample alignment (0 = default) + * @return >=0 on success, negative error code on failure + * @todo return the size in bytes required to store the samples in + * case of success, at the next libavutil bump + */ +int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, + enum AVSampleFormat sample_fmt, const uint8_t *buf, + int buf_size, int align); + +/** + * Reset the internal codec state / flush internal buffers. Should be called + * e.g. when seeking or when switching to a different stream. + * + * @note for decoders, this function just releases any references the decoder + * might keep internally, but the caller's references remain valid. + * + * @note for encoders, this function will only do something if the encoder + * declares support for AV_CODEC_CAP_ENCODER_FLUSH. When called, the encoder + * will drain any remaining packets, and can then be reused for a different + * stream (as opposed to sending a null frame which will leave the encoder + * in a permanent EOF state after draining). This can be desirable if the + * cost of tearing down and replacing the encoder instance is high. + */ +void avcodec_flush_buffers(AVCodecContext *avctx); + +/** + * Return audio frame duration. + * + * @param avctx codec context + * @param frame_bytes size of the frame, or 0 if unknown + * @return frame duration, in samples, if known. 0 if not able to + * determine. + */ +int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes); + +/* memory */ + +/** + * Same behaviour av_fast_malloc but the buffer has additional + * AV_INPUT_BUFFER_PADDING_SIZE at the end which will always be 0. + * + * In addition the whole buffer will initially and after resizes + * be 0-initialized so that no uninitialized data will ever appear. + */ +void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size); + +/** + * Same behaviour av_fast_padded_malloc except that buffer will always + * be 0-initialized after call. + */ +void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size); + +/** + * @return a positive value if s is open (i.e. avcodec_open2() was called on it), + * 0 otherwise. + */ +int avcodec_is_open(AVCodecContext *s); + +/** + * @} + */ + +#endif /* AVCODEC_AVCODEC_H */ diff --git a/ffmpeg-audio/ffmpeg-win/include/libavcodec/avdct.h b/ffmpeg-audio/ffmpeg-win/include/libavcodec/avdct.h new file mode 100644 index 0000000..6411fab --- /dev/null +++ b/ffmpeg-audio/ffmpeg-win/include/libavcodec/avdct.h @@ -0,0 +1,88 @@ +/* + * 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 + */ + +#ifndef AVCODEC_AVDCT_H +#define AVCODEC_AVDCT_H + +#include "libavutil/opt.h" + +/** + * AVDCT context. + * @note function pointers can be NULL if the specific features have been + * disabled at build time. + */ +typedef struct AVDCT { + const AVClass *av_class; + + void (*idct)(int16_t *block /* align 16 */); + + /** + * IDCT input permutation. + * Several optimized IDCTs need a permutated input (relative to the + * normal order of the reference IDCT). + * This permutation must be performed before the idct_put/add. + * Note, normally this can be merged with the zigzag/alternate scan
+ * An example to avoid confusion: + * - (->decode coeffs -> zigzag reorder -> dequant -> reference IDCT -> ...) + * - (x -> reference DCT -> reference IDCT -> x) + * - (x -> reference DCT -> simple_mmx_perm = idct_permutation + * -> simple_idct_mmx -> x) + * - (-> decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant + * -> simple_idct_mmx -> ...) + */ + uint8_t idct_permutation[64]; + + void (*fdct)(int16_t *block /* align 16 */); + + + /** + * DCT algorithm. + * must use AVOptions to set this field. + */ + int dct_algo; + + /** + * IDCT algorithm. + * must use AVOptions to set this field. + */ + int idct_algo; + + void (*get_pixels)(int16_t *block /* align 16 */, + const uint8_t *pixels /* align 8 */, + ptrdiff_t line_size); + + int bits_per_sample; + + void (*get_pixels_unaligned)(int16_t *block /* align 16 */, + const uint8_t *pixels, + ptrdiff_t line_size); +} AVDCT; + +/** + * Allocates a AVDCT context. + * This needs to be initialized with avcodec_dct_init() after optionally + * configuring it with AVOptions. + * + * To free it use av_free() + */ +AVDCT *avcodec_dct_alloc(void); +int avcodec_dct_init(AVDCT *); + +const AVClass *avcodec_dct_get_class(void); + +#endif /* AVCODEC_AVDCT_H */ diff --git a/lib/windows-x86_64.zip b/lib/windows-x86_64.zip index 16c770f..30d53dd 100644 Binary files a/lib/windows-x86_64.zip and b/lib/windows-x86_64.zip differ diff --git a/lib/windows-x86_64/ao-play-async.dll b/lib/windows-x86_64/ao-play-async.dll index d363e77..e19dfba 100644 Binary files a/lib/windows-x86_64/ao-play-async.dll and b/lib/windows-x86_64/ao-play-async.dll differ