The fork of ffmpeg

This fork adds option -bitrate_ctrl_socket to MediaCodec encoders, which enables the user to change the bitrate on fly.

An example of ffmpeg execution:

ffmpeg -listen 1 -i rtmp://0.0.0.0:1935/live/myStream -c:v hevc_mediacodec -bitrate_ctrl_socket /run/bitrate.sock -b:v 8M -f rtsp rtsp://127.0.0.1:1935/live/reEncoded

An example of changing the bitrate to 1 Mbps:

printf '%016X' 1000000 | xxd -r -p | socat -u STDIN UNIX:/run/bitrate.sock

Building

cd /tmp
git clone https://github.com/xaionaro/termux-packages
cd termux-packages
./scripts/run-docker.sh ./scripts/setup-android-sdk.sh
curl https://raw.githubusercontent.com/gouravkhunger/termux-packages/20070/fix-glib/packages/glib/build.sh > packages/glib/build.sh
./scripts/run-docker.sh env TERMUX_FORCE_BUILD_DEPENDENCIES=true ./build-package.sh glib
./scripts/run-docker.sh rm -f /data/data/.built-packages/glib
./scripts/run-docker.sh ./build-package.sh glib
./scripts/run-docker.sh ./build-package.sh ffmpeg
ls -ld ../output/ffmpeg*deb

Merging to the upstream

The patch was suggested here: https://ffmpeg.org/pipermail/ffmpeg-devel/2024-May/328280.html

Original README.md

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.