Fbdevsink Low Framerate on Raspberry Pi

[Dave Johnstone]

Hi Sam,

I am experiencing a flash on screen when playback starts, this is just a 
single frame - I'm now using omxh264dec and glimagesink.  I reported it 
as a bug but, after investigation, the devs tell me it is a Broadcom 
problem and so it's unable to be fixed from this end.  Do you experience 
this flash in your use case?  Do you have a work-around?

The Gnome Bugzilla reference is 768116.

Best regards,

Dave.


On 13/06/2016 10:40 PM, Samuel Hurst wrote:
> Hi Dave,
>
> On 13/06/16 13:59, Dave Johnstone wrote:
>> I am trying to display HD video (MJPEG or Quicktime Animation Codec) on
>> a Raspberry Pi2 but experiencing very low framerates.  Is it possible to
>> achieve reasonable framerates (25+fps) on the Pi perhaps with hardware
>> acceleration?  I am not using an X server, I need to use the framebuffer
>> only.  I have looked at glimagesink but this seems to require X.  Is it
>> possible to use glimagesink directly on the framebuffer as GLES works at
>> a good speed directly on the FB?
> I'm currently using a Raspberry Pi 2 with only a framebuffer and can
> reliably get 50fps H.264 video decode using hardware acceleration using
> gst-omx for hardware decoding and glimagesink. In my case, glimagesink
> is using EGL. I can't give you any information as to how well it'll
> tackle MJPEG, but gst-omx does seem to have elements for it so I'd
> assume it works fine.
>
> https://cgit.freedesktop.org/gstreamer/gst-omx
>
> I'd recommend using very recent versions of GStreamer as there's been a
> fair few patches recently which have really helped boost performance
> specifically on the Pi.
>
> -Sam
>
>
>
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