omxh264dec and textoverlay

[Sebastian Dröge]

On Mon, 2016-09-05 at 02:46 -0700, imeshns wrote:
> I have raspberry pi 3 and 2016-05-27-raspbian-jessie. When I create
> test with
> gst-inspect-1.0:
> 
> GST_DEBUG=3 gst-launch-1.0 rtspsrc location=rtsp://... ! rtph264depay
> !
> h264parse ! omxh264dec ! textoverlay ! glimagesink
> 
> everyting is okey and video can play, but if I only adds attribute
> text="test" to the textoverlay, the debugger shows me errors:
> [...]
> 0:00:01.646814813  1120 0x70c0f920 ERROR                default
> video-frame.c:138:gst_video_frame_map_id: failed to map video frame
> plane 0
> 
> Is there any solution to overlay text on the glimagesink with
> hardware acceleration "omxh264dec" on raspberry pi?

Which version of GStreamer is that with (also of gst-omx)? 1.8 and
newer should be able to handle this properly by delaying the overlaying
to the sink.


Independent of that, even in older versions this shouldn't fail like
that but just be extremely slow.

-- 
Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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