libavcodec/mpeg12dec: append CC data to a53_buf_ref

In mpeg_decode_a53_cc() only the A/53 part 4 CC data ("GA94") is saved between
frames. The other formats incorrectly created a larger buffer than they use
since a705bcd763e344fac191e157ffeddc285388b7fa because they did not append to
the previous data.

The a53_buf_ref is added to the frame in mpeg_field_start() which will only be
called in decode_chunks() if not all of the picture data slices are skipped.

For these formats, utilize the data added to the buffer in case frames are skipped
(concatenating the CC data until a frame can be exported), in a similar fashion to
the A/53 part 4 logic.

Reviewed-by: Marth64 <marth64@proxyid.net>
Signed-off-by: Marth64 <marth64@proxyid.net>

0 files changed, 0 insertions, 0 deletions