Full HD with gst-omx on Raspberry Pi?

[Matthew Waters]

On 13/10/16 06:40, munezbn.dev wrote:
> Hi Any luck with this? I am also in same boat. I have two videos 720p and
> 1080p
> 720p video plays but it drops frames once in a while. But 1080p video is
> doesnt smooth at all.
>
> I have used gst-omx version 1.2.0 and the latest version 1.9.90 .. 
> I have set gpu_mem =86MB also i have tried playing using gst-launch
> playbin.. 

1.2.0 will not perform zerocopy decoding with gst-plugins-bad 1.9.90 and
will use the CPU memory path instead.

As Sebastian mentioned below, you need 1.9.90 of both gst-omx and
gst-plugins-bad to get the best performance out of the RPi.

Also, it's very likely that your gpu_mem is not large enough for this at
the moment.

Cheers
-Matt

> Peter Maersk-Moller-2 wrote
>> Hi Sebastian.
>>
>> I now have the latest 1.3.90 Git Master running on Raspberry Pi.
>>
>> Trying to do something very simple like the following pipeline
>>
>> gst-launch-1.0 videotestsrc is-live=ue ! 'video/x-raw, width12,
>> height80, frame-rate/1' ! glimagesink
>>
>> Then I see a the video test picture being shown approx. 2 frames per
>> second
>> but with black screen in-between and it complains about being too slow.
>>
>> If I try anything above 1512x1080, such as 1514x1080 or 1920x1080 it will
>> show an initial flicker of a white line being drawn across and the just
>> black screen. So it seems not to be able to play it.
>>
>> When I was displaying video with either autovideosink or eglglessink for
>> gstreamer 1.0.10 it would scale the display to fullscreen using hardware
>> scale of the Pi. But when I play 1.3.90 with glimagesink, no scaling is
>> taking place. What is the appropriate way to get gstreamer 1.3.90 to scale
>> to full screen on a Pi?
>>
>> When I try to play content using the following pipeline for 1.3.90, it
>> complain about being to slow:
>>
>> gst-launch-1.0 tcpclientsrc host2.168.10.50 portP10 ! decodebin !
>> glimagesink
>>
>> The pipeline works well for 1.0.10 and eglglessink or autovideosink
>>
>> WHen I try to play the following pipeline for 1.3.90, it fails:
>>
>> gst-launch-1.0 tcpclientsrc host2.168.10.50 portP10 ! matroskaparse !
>> matroskademux ! h264parse ! queue ! omxh264dec ! queue ! glimagesink
>>
>> Got context from element 'glimagesink0': gst.gl.GLDisplay=ntext,
>> gst.gl.GLDisplay=stGLDisplay)"\(GstGLDisplayEGL\)\ gldisplayegl0";
>>
>> ** (gst-launch-1.0:2770): CRITICAL **: gst_video_frame_map_id: assertion
>> `GST_IS_BUFFER (buffer)' failed
>>
>> (gst-launch-1.0:2770): GStreamer-CRITICAL **: gst_mini_object_unref:
>> assertion `mini_object !=ULL' failed
>> ERROR: from element /GstPipeline:pipeline0/GstGLImageSink:glimagesink0:
>> Failed to upload buffer
>> Additional debug info:
>> gstglimagesink.c(768): gst_glimage_sink_prepare ():
>> /GstPipeline:pipeline0/GstGLImageSink:glimagesink0
>> ERROR: pipeline doesn't want to preroll.
>>
>> Where do I go from here?
>>
>> Thanks in advance for hints and pointers.
>>
>> best regards
>> Peter Maersk-Moller
>>
>>
>>
>>
>>
>> On Thu, Jul 3, 2014 at 10:52 AM, Sebastian Dröge <
>> sebastian@
>> >
>> wrote:
>>
>>> On Fr, 2014-06-27 at 19:33 +0200, Peter Maersk-Moller wrote:
>>>> And the debug is attached to mail ... lets see if the mail list can
>>> accept
>>>> attachments??
>>> From the logs the problem seems to be that your sink does not handle the
>>> resolution and also the decoder is outputting frames in CPU memory. This
>>> is going to be too slow for HD video on the RPi.
>>>
>>> Try a manual pipeline that does not use decodebin but instead just has
>>>
>>> ... ! h264parse ! omxh264dec ! queue ! glimagesink
>>> (or if you're using 1.2 use eglglessink).
>>>
>>> You'll ideally have gst-omx from latest GIT master, compiled for the RPi
>>> and with libgstgl support.
>>>
>>> --
>>> Sebastian Dröge, Centricular Ltd - http://www.centricular.com
>>> Expertise, Straight from the Source
>>>
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>>
>> gstreamer-devel at .freedesktop
>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>>>
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at .freedesktop
>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>
>
>
> --
> View this message in context: http://gstreamer-devel.966125.n4.nabble.com/Full-HD-with-gst-omx-on-Raspberry-Pi-tp4667414p4680018.html
> Sent from the GStreamer-devel mailing list archive at Nabble.com.
>


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 484 bytes
Desc: OpenPGP digital signature
URL: <https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20161013/5e3ee5de/attachment-0001.sig>