Does gst-omx support Raspberry Pi for simultaneously H.264 video decoding and coding?

[Miguel Domingues]

I'm using gst-rpicamsrc which provides video/x-h264 format. See:
https://github.com/thaytan/gst-rpicamsrc

rpicamsrc ! video/x-h264, width=1920, height=1080, framerate=25/1 !
h264parse ! omxh264dec ! video/x-raw ! videorate ! video/x-raw,
framerate=5/1 ! videoscale ! video/x-raw, width=768, height=432 !
omxh264enc ! video/x-h264 ! matroskamux ! multisocketsink

The above is just part of a much bigger pipeline, that have motion
detection, recording and more.
It was written by looking at a bunch of C source files and is not tested,
but the general structure is that.
I've attached the diagram of the full pipeline.


Miguel Domingues

On Wed, Jan 27, 2016 at 1:52 PM, Peter Maersk-Moller <pmaersk at gmail.com>
wrote:

> Hi Miguel.
>
> The RPI camera does not encode H.264. It delivers raw video over its CSI-2
> connector. Then the PI might encode it. Are you sure you decode encoded
> H.264? If yes, then you encode, decode and encode again, which is
> impressing. Can you share your pipeline/script?
>
> Best regards
> Peter
>
>
> On Wed, Jan 27, 2016 at 2:24 PM, Miguel Domingues <
> miguelbrazaodomingues at gmail.com> wrote:
>
>> Hi,
>>
>> Yes it does, at least I have a pipeline that decodes the rpi camera h264
>> source, then does some processing with the raw video, and then re-encodes
>> using the omx h264 encoder.
>>
>> Miguel
>>
>> Miguel Domingues
>>
>> On Wed, Jan 27, 2016 at 7:49 AM, zhang007z <zhang007z at gmail.com> wrote:
>>
>>> My issue as title, in addition to this problem, I want to know that
>>> gst-omx
>>> also supports what chip for H.264 decoding or coding?
>>>
>>> if anybody have any idea for me, thank you in advance.
>>>
>>>
>>>
>>> --
>>> View this message in context:
>>> http://gstreamer-devel.966125.n4.nabble.com/Does-gst-omx-support-Raspberry-Pi-for-simultaneously-H-264-video-decoding-and-coding-tp4675494.html
>>> Sent from the GStreamer-devel mailing list archive at Nabble.com.
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>> gstreamer-devel at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>>
>>
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>
>>
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20160127/4ba345b0/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: pipeline.png
Type: image/png
Size: 351897 bytes
Desc: not available
URL: <http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20160127/4ba345b0/attachment-0001.png>