• Alexandre Colucci's avatar
    Fix VC-1 playback with pulldown content · 2506ad9f
    Alexandre Colucci authored
    The attached patch fixes the jerky playback of VC-1 content with pulldown. The pulldown flags were incorrectly set. They must be correct in order to display the frames with the correct timing as mentioned in the specifications: "SMPTE 421M: VC-1 Compressed Video Bitstream Format and Decoding Process". More precisely the following tables:
    
    Table 20: Progressive P picture layer bitstream for Advanced Profile
    Table 22: Progressive B picture layer bitstream for Advanced Profile
    Table 23: Progressive Skipped picture layer bitstream for Advanced Profile
    Table 82: Interlaced Frame I and BI picture layer bitstream for Advanced Profile
    Table 83: Interlaced Frame P picture layer bitstream for Advanced Profile
    Table 84: Interlaced Frame B picture layer bitstream for Advanced Profile
    Table 85: Picture Layer bitstream for Field 1 of Interlace Field Picture for Advanced Profile
    Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
    2506ad9f
vc1.c 36.4 KB