Try mov tags if the fourcc in V_MS/VFW mkv files cannot be found in bmp tags.

Fixes decoding of broken mkv files containing ProRes video from ticket #3434.
Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Try mov tags if the fourcc in V_MS/VFW mkv files cannot be found in bmp tags.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avformat/mpegtsenc: Allow DTS audio copy to TS streams

This doesn't allow encoding of DTS or TrueHD. It just sets the correct
stream ID in the TS output file when a DTS or TrueHD audio stream is copied.

Fixes ticket #1398

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/mlvdec: process ff_get_wav_header return value

Fixes CID1206640.

Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/mlvdec: print unsigned chunk size

Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
lavf/mpeg.h: Remove an unused definition.

Fixes a warning when compiling mpegts.c.