[libav-bugs] [Bug 530] New: Wrong FPS is detected for some DVDs

bugzilla-daemon at aruru.libav.org bugzilla-daemon at aruru.libav.org
Mon Jun 17 16:17:02 CEST 2013


           Summary: Wrong FPS is detected for some DVDs
           Product: Libav
           Version: 9
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: general
        AssignedTo: bugzilla at libav.org
        ReportedBy: nikoli at lavabit.com

$ mpv dvd://1 -dvd-device dvd -v -frames 1 2>/dev/null|grep -i -e fps -e
Trying demuxer: edl
Trying demuxer: cue
Trying demuxer: mkv
Trying demuxer: lavf
[V] filefmt:19  fourcc:0x0  size:720x480  fps:24.083  ftime:=0.0415
VIDEO:  720x480  24.083 fps  9800.0 kbps (1225.0 kB/s)
$ mpv dvd://1 -dvd-device dvd -v -demuxer mpegps -frames 1 2>/dev/null|grep -i
-e fps -e demuxer
Trying demuxer: mpegps
VIDEO:  MPEG2  720x480  (aspect 2)  29.970 fps  9800.0 kbps (1225.0 kbyte/s)
[V] filefmt:1  fourcc:0x10000002  size:720x480  fps:29.970  ftime:=0.0334
VIDEO:  720x480  29.970 fps  9800.0 kbps (1225.0 kB/s)
$ avprobe dvd/VIDEO_TS/VTS_01_1.VOB 
avprobe version 9.7, Copyright (c) 2007-2013 the Libav developers
  built on Jun 17 2013 15:36:37 with gcc 4.6.3 (Gentoo Hardened 4.6.3 p1.13,
Input #0, mpeg, from 'dvd/VIDEO_TS/VTS_01_1.VOB':
  Duration: 00:00:56.77, start: 0.280633, bitrate: 151248 kb/s
    Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [PAR 8:9 DAR
4:3], 9800 kb/s, 24.08 fps, 59.94 tbr, 90k tbn, 59.94 tbc
    Stream #0.1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
    Stream #0.2[0x20]: Subtitle: dvdsub
# avprobe output
$ mediainfo -f dvd/VIDEO_TS/VTS_01_1.VOB |grep -i fps
Frame rate                               : 29.970 fps

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