本分支基于FFmpeg官方2020/7/14的源码修改，主要添加了rtmp对H265/opus的支持，其中H265的支持源自金山云, 我只是做了最新FFmpeg代码的适配，rtmp对opus的支持(codec id定义为13)由本人实现，目前我已经测试通过，功能完全正常。
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
libavcodecprovides implementation of a wider range of codecs.
libavformatimplements streaming protocols, container formats and basic I/O access.
libavutilincludes hashers, decompressors and miscellaneous utility functions.
libavfilterprovides a mean to alter decoded Audio and Video through chain of filters.
libavdeviceprovides an abstraction to access capture and playback devices.
libswresampleimplements audio mixing and resampling routines.
libswscaleimplements color conversion and scaling routines.
The offline documentation is available in the doc/ directory.
Coding examples are available in the doc/examples directory.
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
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.