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Marton Balint cde3c5fc0c avfilter/f_loop: fix aloop activate logic 
The logic did not follow the documented behaviour and that caused skipping of
some audio in the loop and in the leftover buffer.

Example command line which should produce a smooth sine wave for the whole
duration of the output:

ffmpeg -f lavfi -i "sine=r=48000:f=480:d=4" -af "aloop=loop=4:start=48000:size=48000" out.wav

Fixes ticket #11283.

Signed-off-by: Marton Balint <cus@passwd.hu>
(cherry picked from commit fe18ed3f2a)
2024-11-17 22:54:08 +01:00
compat avfilter: add chromakey_cuda filter 2022-07-10 17:20:15 +02:00
doc Update for 5.1.6 2024-07-25 20:30:30 +02:00
ffbuild
fftools fftools/ffmpeg: Check read() for failure 2024-07-21 18:55:33 +02:00
libavcodec avcodec/libx265: unbreak build for X265_BUILD >= 213 2024-10-06 13:31:01 +02:00
libavdevice configure: improve check for POSIX ioctl 2024-09-01 20:12:39 -04:00
libavfilter avfilter/f_loop: fix aloop activate logic 2024-11-17 22:54:08 +01:00
libavformat avformat/libzmq: fix check for zmq protocol prefix 2024-09-02 23:28:11 +02:00
libavutil avutil/wchar_filename: re-introduce explicit cast of void* to char* 2024-10-27 10:00:43 +01:00
libpostproc Bump Versions for 5.1 branch 2022-07-13 00:27:37 +02:00
libswresample swsresample/swresample: error out on invalid layouts 2024-07-29 23:52:50 +02:00
libswscale swscale/output: Fix integer overflows in yuv2rgba64_X_c_template 2024-07-22 10:42:21 +02:00
presets
tests fate/subtitles: Ignore line endings for sub-scc test 2024-04-14 03:24:49 +02:00
tools tools/coverity: Phase 1 study of anti-halicogenic for coverity av_rescale() 2024-07-21 20:02:25 +02:00
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Makefile Makefile: Prompt for reconfigure on lavc/hwaccels.h modification 2022-07-01 00:34:38 +02:00
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RELEASE Update for 5.1.6 2024-07-25 20:30:30 +02:00
RELEASE_NOTES RELEASE_NOTES: Based on the version from 5.0 2022-07-20 18:24:16 +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 means to alter decoded audio and video through a directed graph of connected 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.