• Andreas Rheinhardt's avatar
    dump_extra: Don't add extradata if it already exists · 3469cfab
    Andreas Rheinhardt authored
    The dump_extra bitstream filter currently simply adds the extradata to
    the packets indicated by the user without checking whether said
    extradata already exists in the packets. Besides wasting space
    duplicated extradata in the same packet/access unit is also forbidden
    for some codecs, e.g. MPEG-2.
    
    This check has been added to be able to use the mpeg2_qsv encoder (which
    only adds the sequence headers to the first packet) in broadcast
    scenarios where repeating sequence headers are required.
    
    The check used here is not perfect: E.g. dump_extra would add the
    extradata to a H.264 access unit consisting of an access unit delimiter,
    SPS, PPS and slices.
    
    Fixes #8007.
    Signed-off-by: 's avatarAndreas Rheinhardt <andreas.rheinhardt@gmail.com>
    Signed-off-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
    3469cfab
dump_extradata_bsf.c 3.45 KB