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Andreas Rheinhardt 90f647c29b avformat/utils: Preserve integrity of linked list 
1. Instead of relying on ff_packet_list_get to get the oldest element in
an AVPacketList, ff_read_packet used its own ad-hoc code. Said code
forgot to set the end of the list to NULL if the last element of the
list has been removed, thereby leaving the list in an inconsistent state.
2. Furthermore, if the list was not empty, the oldest element of the
list would always be copied into another packet structure before it was
known whether the oldest entry of the list would be removed. This makes
the ownership confusing and potentially copies unnecessarily.

Both of these issues have been fixed. ff_packet_list_get is used now.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-09-18 22:53:00 +02:00
compat compat/cuda: Change inclusion guards 2019-08-05 12:07:09 +02:00
doc doc: various spelling, grammar and formatting fixes 2019-09-18 10:39:18 +05:30
ffbuild build: add support for building CUDA files with clang 2019-08-04 19:08:08 +02:00
fftools fftools/ffmpeg_opt: Fix signed integer overflow 2019-09-17 14:41:07 +02:00
libavcodec avcodec/hevcdec: Fix memleak of a53_caption 2019-09-16 22:51:26 +02:00
libavdevice libavdevice: Update the class name as uniform style 2019-08-15 09:29:55 +08:00
libavfilter avfilter/vf_v360: add mercator projection 2019-09-17 22:18:30 +02:00
libavformat avformat/utils: Preserve integrity of linked list 2019-09-18 22:53:00 +02:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avutil/mips: refactor msa SLDI_Bn_0 and SLDI_Bn macros. 2019-09-16 00:04:18 +02:00
libpostproc Bump minor versions again on master to keep 4.2 versions separate from master 2019-07-21 18:36:31 +02:00
libswresample Bump minor versions again on master to keep 4.2 versions separate from master 2019-07-21 18:36:31 +02:00
libswscale swscale/swscale: delete unwanted assignments 2019-09-09 18:16:06 +02:00
presets
tests checkasm/opusdsp: declare opus_deemphasis as a function returning a float 2019-09-18 11:42:06 -03:00
tools tools/target_dec_fuzzer: Adjust threshold for binkvideo 2019-09-17 14:45:08 +02:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore tools/python: add script to convert TensorFlow model (.pb) to native model (.model) 2019-07-01 10:23:47 -03:00
.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
Changelog lavc/g729dec: Support decoding Sipro ACELP.KELVIN. 2019-09-16 20:57:53 +02:00
configure configure: check for a sufficiently recent enough AMF version 2019-09-09 09:56:12 +02:00
CONTRIBUTING.md
COPYING.GPLv2
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CREDITS
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md LICENSE: Add missing libraries that need --enable-version3. 2019-08-12 02:25:39 +02:00
MAINTAINERS MAINTAINERS: add myself to OMX 2019-08-23 17:07:05 -07:00
Makefile tools: Add fuzzer for demuxers 2019-05-31 22:44:30 +02:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE RELEASE: Update value for post 4.2 branch 2019-07-21 18:37:32 +02:00

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.