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Andreas Rheinhardt 0d81c0a10e avformat: Redo cleanup of demuxers upon read_header() failure If reading the header fails, the demuxer's read_close() function (if existing) is not called automatically; instead several demuxers call it via "goto fail" in read_header(). This commit intends to change this by adding an internal flag for demuxers that can be used to set on a per-AVInputFormat basis whether read_close() should be called generically after an error during read_header(). The flag controlling this behaviour needs to be added because it might be unsafe to call read_close() generally (e.g. this might lead to read_close() being called twice and this might e.g. lead to double-frees if av_free() is used instead of av_freep(); or a size field has not been reset after freeing the elements (see the mov demuxer for an example of this)). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>		3 years ago
compat	avfilter: compress CUDA PTX code if possible	3 years ago
doc	avfilter/fps: remove unconventional acronyms	3 years ago
ffbuild	avfilter: compress CUDA PTX code if possible	3 years ago
fftools	ffmpeg: silence a thread_safe_callbacks deprecation warning	3 years ago
libavcodec	avcodec/mjpegdec: Try to continue decoding on zero quant matrix value	3 years ago
libavdevice	avdevice/libcdio: fix AVStream.cur_dts usage	3 years ago
libavfilter	avfilter/f_metadata: do not return the frame early if there is no metadata	3 years ago
libavformat	avformat: Redo cleanup of demuxers upon read_header() failure	3 years ago
libavutil	avutil/tx: avoid negative left shifts	3 years ago
libpostproc	Bump major versions of all libraries.	4 years ago
libswresample	Bump major versions of all libraries.	4 years ago
libswscale	sws: move updating the palette higher up	3 years ago
presets	…
tests	sws: separate the calls to scaled vs unscaled conversion	3 years ago
tools	tools/target_dec_fuzzer: move maximum variables into function	3 years ago
.gitattributes	…
.gitignore	avfilter: compress CUDA PTX code if possible	3 years ago
.mailmap	mailmap: add entry for myself	4 years ago
.travis.yml	Merge commit '899ee03088d55152a48830df0899887f055da1de'	6 years ago
CONTRIBUTING.md	…
COPYING.GPLv2	…
COPYING.GPLv3	…
COPYING.LGPLv2.1	…
COPYING.LGPLv3	…
CREDITS	…
Changelog	avformat: add a concat protocol that takes a line break delimited list of resources	3 years ago
INSTALL.md	…
LICENSE.md	avfilter/vf_geq: Relicense to LGPL	5 years ago
MAINTAINERS	avformat: add Argonaut Games CVG demuxer	4 years ago
Makefile	libavresample: Remove deprecated library	4 years ago
README.md	…
RELEASE	Bump Versions before release/4.4 branch	4 years ago
configure	avfilter/scale_cuda: add support for pixel format conversion	3 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 analysis 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

Coding examples are available in the doc/examples directory.

License

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

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.