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Marton Balint 56c58b99d0 avformat/mpegts: cache PID discard values 
discard_pid can be quite expensive, so let's cache it and recalculate it on
every packet start.

ffmpeg -y -i samples/MPEG-VOB/sdtv/RAI.ts -c copy -map 0✌️0 -map 0🅰️0 -f mpegts /dev/null

Before:
   1685 decicycles in handle_packet,  523483 runs,    805 skips

After:
    883 decicycles in handle_packet,  523505 runs,    783 skips

Signed-off-by: Marton Balint <cus@passwd.hu>
2019-02-04 21:43:30 +01:00
compat additional math.h functions for djgpp 2018-11-28 22:16:07 +11:00
doc doc/filters: correct headphone examples 2019-02-04 10:37:11 +05:30
ffbuild Merge commit '17b6c7efb471e8ff1b8a7271f6531ba1d52bf69c' 2017-11-12 01:02:02 -03:00
fftools ffmpeg_opt: Print a warning if more than one -vf/-af option was specified. 2019-01-15 00:27:05 +01:00
libavcodec avcodec/mpeg4_unpack_bframes_bsf: Use avpriv_find_start_code 2019-02-04 19:59:21 +01:00
libavdevice libavdevice/gdigrab: fix HIDPI support for mouse positioning 2019-01-30 21:55:22 +01:00
libavfilter avfilter/vf_mix: always output frame if array is filled 2019-02-02 18:54:54 +01:00
libavformat avformat/mpegts: cache PID discard values 2019-02-04 21:43:30 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil lavu/imgutils: Use FFABS() instead of abs() for ptrdiff_t. 2019-02-01 23:19:25 +01:00
libpostproc postproc/postprocess_template: remove FF_REG_sp from clobber list 2018-12-22 17:41:44 +01:00
libswresample Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libswscale swscale/yuv2rgb: Return a more specific error code from ff_yuv2rgb_c_init_tables() 2019-01-01 21:11:47 +01:00
presets
tests tests/checkasm/checkasm: Do not define an unused function. 2019-01-31 20:16:17 +01:00
tools tools/target_dec_fate.list: add entries upto 1214 2019-01-28 01:09:38 +01:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore Remove the ffserver program 2018-01-06 18:31:37 +00:00
.travis.yml Merge commit '4809781586d1c956005f72946a2aab5915eab350' 2017-10-28 15:08:31 -03:00
Changelog avcodec: add ARBC decoder 2019-01-27 13:53:29 +01:00
configure libavfilter: add transpose_vaapi filter 2019-01-23 23:29:40 +00:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md Merge commit '4fef648d10bf3bcfd4b8fa5755c1128966a2427c' 2017-03-15 22:07:47 +01:00
MAINTAINERS MAINTAINERS: add myself to the PPC section 2019-02-04 19:14:20 +01:00
Makefile Makefile: Allow "make clean" to delete compat/atomics/pthread/stdatomic.o 2018-12-28 14:04:10 +01:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE RELEASE: bump to 4.1.git 2018-11-02 00:55:49 +01:00

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.