Fbdevsink Low Framerate on Raspberry Pi

[Samuel Hurst]

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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