• Improve audio and video synchronization to achieve more uniform mixing when muxing with subtitles or data tracks.
• Improve invalid input data hadling to avoid freeze when "failed to run h264_mp4toannexb bitstream filter" error occurs.
  Now properly exits with error.
• Add support for uyvy as input color format.
• Improve B-frame settings in AV1 encoding. ( #120 )
• Automatically disable --parallel when number of encoders is 1 when using --parallel auto.