• Jan Ekström's avatar
    avformat/movenc: implicitly enable negative CTS offsets for ismv · 1931761f
    Jan Ekström authored
    ISMV lacks any sort of edit list support, as well as tfxd is
    effectively the PTS of the fragment for most intents and purposes.
    
    Thus, if b-frames are requested without negative CTS offsets you
    end up with N frames' worth of delay (tfxd PTS plus the CTS offset
    of the first sample). Negative CTS offsets enable the first sample
    to have CTS=DTS, and thus a/v desync due to b-frame reorder delay
    is avoided.
    1931761f
ismv 420 Bytes