Gerard Sole (12021-12-15):
> Adds support for concat demuxer to copy the side data information
> from the input file to the resulting file. It will behave like the
> metadata copy, where the metadata of the first file is kept in the
> the output file.
> 
> Extract the current code that already performs the stream side_data
> copy into a separate method and reuse the method in the concat demuxer.
> 
> Signed-off-by: Gerard Sole <g.sole.ca@gmail.com>
> ---
>  libavformat/concatdec.c                             | 1 +
>  libavformat/internal.h                              | 9 +++++++++
>  libavformat/utils.c                                 | 9 +++++++++
>  tests/ref/fate/concat-demuxer-extended-lavf-mxf     | 2 +-
>  tests/ref/fate/concat-demuxer-extended-lavf-mxf_d10 | 2 +-
>  tests/ref/fate/concat-demuxer-simple1-lavf-mxf      | 1 +
>  tests/ref/fate/concat-demuxer-simple1-lavf-mxf_d10  | 1 +
>  tests/ref/fate/concat-demuxer-simple2-lavf-ts       | 1 +
>  8 files changed, 24 insertions(+), 2 deletions(-)

Applied, thanks, and again sorry for the delay.

Regards,

-- 
  Nicolas George