[Development] The dark side of QtMultimedia - strikes back

Massimo Callegari massimocallegari at yahoo.it
Sat Jul 4 22:19:28 CEST 2015


On Saturday 04 July 2015 18:36:35 Massimo Callegari wrote:
> I've built Qt 5.5.0 for the Raspberry Pi 2, with gstreamer-1.0 support, 
> and installed the GST OMX plugin, for hardware decoding.
> Ran the player example on EGLFS and that's the result: omxplayer works 
>> like a charm and QtMultimedia doesn't.
>> Attached the player example log with GST_DEBUG="omx:4" on.
>> It shows that QtMultimedia is actually using gstreamer + OMX.
>> 
>> I don't understand if things are tested before declaring them "supported".
>> I quote: " A lot of work has also gone into Qt Multimedia. On Linux, we 
>> have now added gstreamer 1.0 support and lots of bugs have been fixed 
>> for the other platforms."

>Can you try the same on a platform that has open source drivers? The problem 
>may not be in QtMultimedia at all, but with those OMX plugins or the 
>proprietary OpenMAX backend.

Thiago, as I said the reference player, omxplayer (on which Kodi is based), works perfectly with the same files, and it's an open source project:https://github.com/huceke/omxplayer
I believe it proves that gstreamer + omx is working properly.
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