Video Playback issues on QT 5.2, Windows 7, MinGW32
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On my build environment, all video playback fails with the error: DirectShowPlayerService::doRender: Unresolved error code 80040266
This video playback fails on any video file I tried including ogv, webm, mp4.
I also tried the W3Schools HTML5 Video tester in Tabbed Browser sample app and it fails with the same error when I try to play the video.
I build up an Ubuntu 13.1 environment to verify it html5 video support should work I confirmed that the W3Schools HTML5 Video player works fine on Ubuntu.
Anybody know about this issue?
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Hi,
How did you try to show the videos?
This page might provide some clues to the source of your error: http://qt-project.org/wiki/Qt_Multimedia_Backends
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Hello JKSH
I will look into the page you suggested.
For your question, I tried playing the videos many different ways including:
Custom iframe youtube based page that loaded a webm video
YouTube view app loading the same webm video
Called the W3Schools HTML5 Video demo from Tab Browser, Fancy Browser and a custom simple QWebView app
Made a local copy of the W3Schools HTML5 Video HTML and tried many different ways
I tried the Video Player sample app to load several good html5 video formats
All of the tests resulted with the same error message.
To extend my testing, I loaded the MSVC 2012 Tool Kit into my environment and all the videos play fine when I build using this tool kit. Therefore, this issue appears so far to be isolated to MinGW 32bit build environment.
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Hi,
For minGW, the only available backend is the DirectShow backend (dsengine), which will not support many codecs out-of-the-box. Installing codecs for DirectShow solved the problem in my case, except when the video does not include an audio stream.
We are now testing with a MSVC 2012 build, which includes both the WMF and the DS backend. WMF supports more codecs (but might have trouble with h.264). I will post the test results when they 're done.
