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  1. Qt
  2. QTBUG-87213

Windows/WMF: A lot of issues when playing several videos in parallel

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    Details

    • Type: Bug
    • Status: Reported
    • Priority: P3: Somewhat important
    • Resolution: Unresolved
    • Affects Version/s: 5.14.2, 5.15.1
    • Fix Version/s: None
    • Component/s: Multimedia
    • Labels:
      None
    • Platform/s:
      Windows

      Description

      There are a lot of issues reproduced with attached example:

      • sometimes only a few videos are playing
      • sometimes all videos blink
      • sometimes app hangs or crashes

      usually it's accompanied by warnings:

      [7816] Failed to get IMFMetadataProvider from source
      [7816] Failed to get IMFMetadataProvider from source
      [7816] Failed to get IMFMetadataProvider from source
      [7816] Failed to get IMFMetadataProvider from source
      [7816] Failed to get IMFMetadataProvider from source
      [7816] Failed to get IMFMetadataProvider from source
      [7816] handleSessionEvent: serious error =  -1072875852
      [7816] handleSessionEvent: serious error =  -1072875852
      [7816] handleSessionEvent: serious error =  -1072875852
      [7816] handleSessionEvent: serious error =  -1072875852
      [7816] handleSessionEvent: serious error =  -1072875852
      [7816] handleSessionEvent: serious error =  -1072875852
      

      and process allocates more than 1Gb memory on start.
      I've checked on Win10 both with native OpenGL and ANGLE.

      With ANGLE there are additional warnings:

      [6836] D3D11: Removing Device.
      [6836] Cannot find EGLConfig, returning null config
      [6836] QWindowsEGLContext: Failed to create context, eglError: 300e, this: 0x100a8d50
      [6836] Cannot find EGLConfig, returning null config
      [6836] QWindowsEGLContext: Failed to create context, eglError: 300e, this: 0x100a5570
      [6836] Cannot find EGLConfig, returning null config
      [6836] QWindowsEGLContext: Failed to create context, eglError: 300e, this: 0x100a5120
      

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            Assignee:
            valentyn.doroshchuk Valentyn Doroshchuk
            Reporter:
            studiosus Vladimir Belyavsky
            Votes:
            2 Vote for this issue
            Watchers:
            2 Start watching this issue

              Dates

              Created:
              Updated:

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