Update extradata/stream param on segment change code

- Improved support for audio extradata
- Support for aspect ratio changes and general stream properties
Update ffmpeg for build fix
Update ffmpeg for missing chapters
Update ffmpeg for a few edition enhancements
Update ffmpeg
Add DVH3 FourCC for DV Video
Switch audio to refcounted frames
Add an option to disable loading external mkv segments
Update ffmpeg for more ordered chapter fixes
Fix ordered chapter regression
Update ffmpeg for potential h264 performance fix
Update ffmpeg for small subtitle fix on segment change
Add (unofficial) language code for brazillian portuguese
Update version and changelog
Update developer_info
dxva2n: fix a crash when closing the video
Fix crash with unsupported media type changes (ie. vorbis)