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Andreas Rheinhardt c0d483cecb avcodec/aptx: Use AVCodecContext.frame_size according to the API 
Currently the APTX (HD) codecs set frame_size if unset and check
whether it is divisible by block_size (corresponding to block_align
as used by other codecs). But this is based upon a misunderstanding
of the API: frame_size is not in bytes, but in samples.

Said value is also not intended to be set by the user at all,
but set by encoders and (possibly) decoders if the number of channels
in a frame is constant. The latter condition is not fulfilled here,
so only set it for encoders. Given that the encoder can handle any
number of samples as long as it is divisible by four and given that
it worked to set a custom frame size before, the encoders accept
any multiple of four; otherwise the value is set to the value
that it already had for APTX: 1024 samples (per channel).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-09-19 17:05:33 +02:00
compat
doc doc/filters: add speechnorm examples 2022-09-18 19:43:42 +02:00
ffbuild
fftools fftools/ffplay: fix rotation incorrect when frame contains the displaymatrix 2022-09-15 16:16:16 +08:00
libavcodec avcodec/aptx: Use AVCodecContext.frame_size according to the API 2022-09-19 17:05:33 +02:00
libavdevice
libavfilter avfilter/af_afftdn: add double sample format support 2022-09-18 22:43:58 +02:00
libavformat avformat/ape: fix overflow in total_blocks 2022-09-16 18:04:20 +02:00
libavutil x86/tx_float: add asm call versions of the 2pt and 4pt transforms 2022-09-19 06:01:06 +02:00
libpostproc
libswresample swsresample/swresample: error out on invalid layouts 2022-09-14 09:52:33 -03:00
libswscale swscale/la: Add output_lasx.c file. 2022-09-10 22:56:39 +02:00
presets
tests avcodec/utils: Support APTX (HD) in av_get_audio_frame_duration() 2022-09-19 17:05:33 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for Jpeg2000 2022-09-16 21:30:59 +02:00
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Changelog avformat: add LAF demuxer 2022-09-16 10:02:19 +02:00
configure configure: Remove obsolete APTX decoder dependencies 2022-09-18 22:43:47 +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.