Wrapping: return wrapping process status
Wrapping: fix packets writting when input/output packet size asymmetry (comparing streams durations)
Wrapping: feed the wrapper when waiting for data (from the same stream) to complete wrapping
Wrapping: fix double ticks_per_frame compensation into video codec
Transcoding: fix the audio output frame size problem when variable audio frame size in input
Transcoding: in AudioTransform, reset previous processed audio frame size attribute only when the current frame size is re-initialized