[FFmpeg-devel] Add support for j2ki/mxf

[Matthieu Bouron]

Hello there,

The following patchset add support for j2ki/mxf files (which store frames
using the separate fields / segmented frame layouts, ie: fields are
stored in seperate frames) through the insertion of filters at the
ffmpeg/ffplay level. It differs from my original attempt which introduced
modifications at the decoder level, which in my opinion was wrong and
introduced several limitations, such as:

  * only the libopenjpeg decoder was supported
  * frame-multithreading was permantly disabled

The development branch can be found at:
https://github.com/mbouron/FFmpeg/tree/lavfi_mxfdec_j2ki

Best regards,
Matthieu