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Jörg Krause 56b8d10676 configure: Refactor setting of feature test macro _XOPEN_SOURCE Some C libraries, eg glibc, uclibc, and musl, uses feature test macros to expose definitions conforming to the standards ISO C, POSIX and extensions. According to which feature test macros are defined by the user or the compiler, a header file, eg <features.h>, used by these libraries internally defines various other macros. glibc and uclibc also defines release test macros, eg __GLIBC__ and __UCLIBC__ in <features.h>. musl does not have (and does not want) a macro __MUSL__. Therefore it is not possible to check for the musl library. However, building FFmpeg with musl needs the feature test macro _XOPEN_SOURCE=600 to be defined. Signed-off-by: Jörg Krause <jkrause@posteo.de> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>		10 years ago
compat	Merge commit 'f929ab0569ff31ed5a59b0b0adb7ce09df3fca39'	10 years ago
doc	avcodec/dv_profile: deprecate internal function that shouldn't be public	10 years ago
libavcodec	avcodec/webvttdec: add some memory checks	10 years ago
libavdevice	avdevice/lavfi: dont assign variables to themselfs	10 years ago
libavfilter	avfilter/vf_scale: Allow chroma samples to be above and to the left of luma samples	10 years ago
libavformat	avformat/assenc: mux all extradata at once	10 years ago
libavresample	Add missing "const" all over the place.	10 years ago
libavutil	lavu/bprint: add const to av_bprint_is_complete() argument.	10 years ago
libpostproc	postproc/postprocess: Avoid some ifs in do_a_deblock_C()	10 years ago
libswresample	libswresample: move condition to start of loop.	10 years ago
libswscale	swscale: Allow chroma samples to be above and to the left of luma samples	10 years ago
presets	presets: remove moldering iPod presets	11 years ago
tests	tests/utils: make arguments const that arent changed	10 years ago
tools	tools/crypto_bench: fix build when AV_READ_TIME is unavailable	10 years ago
.gitignore	avcodec: export motion vectors in frame side data on demand	10 years ago
COPYING.GPLv2	…
COPYING.GPLv3	Add configure option to upgrade (L)GPL to version 3.	16 years ago
COPYING.LGPLv2.1	cosmetics: Delete empty lines at end of file.	13 years ago
COPYING.LGPLv3	Add configure option to upgrade (L)GPL to version 3.	16 years ago
CREDITS	CREDITS: redirect to Git log, remove current outdated content	12 years ago
Changelog	rtpenc: HEVC/H.265 support	10 years ago
INSTALL.md	INSTALL: add markdown syntax	11 years ago
LICENSE.md	Merge commit '9e8bbe7d4d1dcd5fec491dbfbb98ed2038a7bed5'	10 years ago
MAINTAINERS	MAINTAINERS: Add 2.4 to maintained releases, drop 2.3	10 years ago
Makefile	Merge commit 'd45ebd4876ab8fc07736a644de07e1b1d11a8e5d'	10 years ago
README.md	Merge commit '96ce6d6f119a16e489941c629a2805204322b717'	10 years ago
RELEASE	RELEASE: update to 2.4.git	10 years ago
RELEASE_NOTES	Changelog/RELEASE_NOTES: prepare for 2.4	10 years ago
arch.mak	Merge commit '8675bcb0addb1c7fb0b04682d1f3f95d5b8dae14'	11 years ago
cmdutils.c	Merge commit '2dd09ebf5597fd5e4a573bee9cccf21ae821f286'	10 years ago
cmdutils.h	ffmpeg: add -devices param	11 years ago
cmdutils_common_opts.h	ffmpeg: add -devices param	11 years ago
cmdutils_opencl.c	cmdutils_opencl: Use av_malloc_array()	11 years ago
common.mak	Merge commit 'afe176265480880e1f702c96a8ba434b0d88728b'	11 years ago
configure	configure: Refactor setting of feature test macro _XOPEN_SOURCE	10 years ago
ffmpeg.c	ffmpeg: Do av_buffersink_set_frame_size() when reconfiguring the filtergraph not just when changing audio resample parameters	10 years ago
ffmpeg.h	ffmpeg: Enable compute_edt only when the subtitles are used for a output stream instead of a filter	10 years ago
ffmpeg_dxva2.c	Merge commit 'a7c5fddac8137654cb503295c4dfb6492df43643'	11 years ago
ffmpeg_filter.c	ffmpeg: Do av_buffersink_set_frame_size() when reconfiguring the filtergraph not just when changing audio resample parameters	10 years ago
ffmpeg_opt.c	ffmpeg_opt: reduce diff to libav in opt_target() by 16 lines	10 years ago
ffmpeg_vda.c	Merge commit '1839fafa951308237c4672ffd9a94f927b26eac7'	11 years ago
ffmpeg_vdpau.c	Merge commit '7671dd7cd7d51bbd637cc46d8f104a141bc355ea'	11 years ago
ffplay.c	ffplay: try to fix build failure on apple	10 years ago
ffprobe.c	Print bits_per_raw_sample for ffprobe -show_streams.	10 years ago
ffserver.c	ffserver: drop custom skip_spaces() impl	10 years ago
library.mak	Merge commit 'bb0babd7054bed7edfd9f4d6b20cdba864de1830'	10 years ago
version.sh	version.sh: Print versions based on the last git tag for release branches	10 years ago

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

libavcodec provides implementation of a wider range of codecs.
libavformat implements streaming protocols, container formats and basic I/O access.
libavutil includes hashers, decompressors and miscellaneous utility functions.
libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
libavdevice provides an abstraction to access capture and playback devices.
libswresample implements audio mixing and resampling routines.
libswscale implements color conversion and scaling routines.

Tools

ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
ffplay is a minimalistic multimedia player.
ffprobe is a simple analisys tool to inspect multimedia content.
Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Conding examples are available in the doc/example directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.