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Nachiket Tarate ef0f5d1be6 libavformat/mov: add support for 'cens', 'cbc1' and 'cbcs' encryption schemes specified in Common Encryption (CENC) standard 
correct implementation of 'cenc' encryption scheme to support
decryption of partial cipher blocks at the end of subsamples

https://www.iso.org/standard/68042.html

Signed-off-by: Nachiket Tarate <nachiket.programmer@gmail.com>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
2021-10-13 11:23:44 +08:00
compat
doc avformat/libsrt: add snddropdelay parameter for srt 2021-10-11 18:43:47 +08:00
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fftools fftools/ffmpeg, ffmpeg_opt: Allocate (In|Out)putStream.pkt early 2021-10-08 16:03:21 +02:00
libavcodec libavcodec/adts_header: add frame_length field and avpriv function to parse AAC ADTS header 2021-10-13 11:23:37 +08:00
libavdevice avdevice/caca: Don't free AVOpt-enabled string manually 2021-10-09 14:18:12 +02:00
libavfilter Revert "avfilter/vf_idet: reduce noisyness if the filter has been auto inserted" 2021-10-11 15:24:00 +02:00
libavformat libavformat/mov: add support for 'cens', 'cbc1' and 'cbcs' encryption schemes specified in Common Encryption (CENC) standard 2021-10-13 11:23:44 +08:00
libavutil avutil/detection_bbox: Fix av_detection_bbox_alloc failed if nb_bboxes == 0 2021-10-08 10:11:59 +08:00
libpostproc libpostproc/postprocess_template: Don't reimplement FFSWAP 2021-10-02 17:13:42 +02:00
libswresample swresample/aarch64: fix relocation out of range error 2021-09-25 21:55:29 +03:00
libswscale swscale/swscale: Pass slice location into unscaled code also for dst scaling 2021-10-03 20:38:29 +02:00
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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.