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  1. Qt
  2. QTBUG-77169

playing Wildlife.wmv gives only black in Quick Video element

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Details

    • Bug
    • Resolution: Duplicate
    • P3: Somewhat important
    • None
    • 5.12.4, 5.13.0
    • Multimedia
    • None
    • Linux/X11, Linux/Other display system

    Description

      When I try to play Wildlife.wmv I get only black in Quick Video element. I'm not sure where this file originates from, it seems to be some sort of Microsoft example file (the one starting with horses running at a beach, SHA1 7c7c984066753d5cc52e97f26f4f7892df67bacb). Playing this does neither work on my desktop machine (Qt 5.13.0, X11) nor on my target device (Qt 5.12.4, EGLFS), both running gstreamer 1.16.0. Playing other WMV files works perfectly in the same program, as well playing the file in ffplay or gst-play-1.0.

      Using ffprobe on the file gives this:

      Input #0, asf, from 'Media1/Wildlife.wmv':    0KB sq=    0B f=0/0   
        Metadata:
          SfOriginalFPS   : 299700
          WMFSDKVersion   : 11.0.6001.7000
          WMFSDKNeeded    : 0.0.0.0000
          comment         : Footage: Small World Productions, Inc; Tourism New Zealand | Producer: Gary F. Spradling | Music: Steve Ball
          title           : Wildlife in HD
          copyright       : © 2008 Microsoft Corporation
          IsVBR           : 0
          DeviceConformanceTemplate: AP@L3
        Duration: 00:00:30.09, start: 0.000000, bitrate: 6977 kb/s
          Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 2 channels, fltp, 192 kb/s
          Stream #0:1(eng): Video: vc1 (Advanced) (WVC1 / 0x31435657), yuv420p, 1280x720, 5942 kb/s, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc
         1.86 A-V:  0.003 fd=   1 aq=  115KB vq= 8332KB sq=    0B f=0/0   
      

      Videos that work include these:

        Metadata:
          WMFSDKNeeded    : 0.0.0.0000
          DeviceConformanceTemplate: MP
          WMFSDKVersion   : 12.0.7601.17514
          IsVBR           : 0
        Duration: 00:00:08.23, start: 0.000000, bitrate: 24400 kb/s
          Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1440x1080, 90k tbr, 90k tbn, 90k tbc
          Metadata:
            comment         : Movie/video screen capture
          Stream #0:1(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 48000 Hz, 2 channels, fltp, 192 kb/s
          Stream #0:2(eng): Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p, 1440x1080, 24000 kb/s, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc
      
        Metadata:
          Application     : Windows Movie Maker 2.1.4026.0
          WMFSDKVersion   : 11.0.5721.5265
          WMFSDKNeeded    : 0.0.0.0000
          IsVBR           : 0
          DeviceConformanceTemplate: MP@HL
        Duration: 00:09:56.47, start: 0.000000, bitrate: 759 kb/s
          Stream #0:0(ger): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 2 channels, fltp, 64 kb/s
          Stream #0:1(ger): Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p, 856x480, 704 kb/s, SAR 160:160 DAR 107:60, 25 fps, 25 tbr, 1k tbn, 1k tbc
      [wmv3 @ 0x564329843900] Extra data: 8 bits left, value: 0
      

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              valentyn.doroshchuk Valentyn Doroshchuk
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                Updated:
                Resolved:

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