This helps avoid a lock during the movie player's read method, since it needs
to sync with the current playback position which would otherwise need to get
the movie decoder's current position.
- Don't try to use float audio or extended channel layouts if the hardware does not support them
- Add channel layout resampling support to ffmpeg_decoder
- Fix rindex overflow
- Fix audio sample size bugs (was using sample_fmt and channel count of the decoder, instead of the resampled settings). We didn't notice this bug before, because the OpenAL MovieAudioFactory tries to resample to a format of the same byte size.
- Add support for play/pause and seeking controls (not used by cutscenes in OpenMW)
- Closing the video when arriving at the stream end is now handled by the user (we may also want to keep the video open and seek back)
The video player now has a standalone demo, at https://github.com/scrawl/ogre-ffmpeg-videoplayer
- Split video player to separate source files.
- Move video player engine sources to extern/ (repository will be set up on github soon).
- Audio is handled in a MovieAudioFactory, implemented by the user (here in MWSound subsystem).
- Handle conversion of unsupported channel layouts via ffmpeg's swresample.
