[FFmpeg-trac] #1065(undetermined:new): H.264/AVC(BDAV BluRay codec family) incorrect framerate recognition

FFmpeg trac at avcodec.org
Wed Mar 14 03:42:31 CET 2012

#1065: H.264/AVC(BDAV BluRay codec family) incorrect framerate recognition
             Reporter:  L.H.V.F.     |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  H.264,       |               Blocked By:
  BDAV, AVC                          |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
 According the''' MediaInfo 0.7.54''' ('''GUI'''), the video is
 '''H.264/AVC - BDAV''' - '''BluRay family codec''', and I have cutted this
 with "'''dd'''" UNIX command, being different the recognition of the
 framerate, by part of ffplay, but in File Information of MediaInfo I
 encounter this:


 ID : 212 (0xD4)
 Menu ID : 59233 (0xE761)
 Format : AVC
 Format/Info : Advanced Video Codec
 Format profile : Main at L3.0
 Format settings, CABAC : Yes
 Format settings, ReFrames : 4 frames
 Codec ID : 27
 Duration : 48s 65ms
 Width : 720 pixels
 Height : 480 pixels
 Display aspect ratio : 4:3
 Frame rate : '''29.970 fps'''
 Standard : NTSC
 Color space : YUV
 Chroma subsampling : 4:2:0
 Bit depth : 8 bits
 Scan type : Interlaced
 Scan order : Top Field First
 Color primaries : BT.601-6 525, BT.1358 525, BT.1700 NTSC, SMPTE 170M
 Transfer characteristics : BT.601-6 525, BT.601-6 625, BT.1358 525,
 BT.1358 625,

 The ffplay, for example, recognizes an wrong framerate, and I'm not sure
 if it affects other players, based in FFmpeg. In conversions, probably
 using FFmpeg lib, the incorrect framerate recognition, give an incorrect
 output of the same, because I can play this normally in my CRT television
 (maximum is 30.000 fps supported), and this incorrect recognition hinders
 a successfully conversion, for example for DVD.
 I hope a possible correction fix for the same, because this is made with
 an proprietary codec lib (H.264/BDAV - BluRay codec family).

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1065>
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