v4l2src ! v4l2h264enc ! filesink Dont work on IMX6 board

[Nicolas Dufresne]

Le mer. 31 juill. 2019 08 h 25, _dmp <dm.pozhidaev at gmail.com> a écrit :

> I have board Fscale IMX6, Mesa 18.1.5, Etnaviv , GStreamer 1.14.4, Qt5.9
> Kernel: Linux 4.19.45
> No Xorg, no Wayland. Only EGLFS.
>

Consider upgrading to GStreamer 1.16.0, there is some fixes in the v4l
element. Unless you have patches your 4.19 kernel, I cannot guarantee it
will work out of the box. Try a 5.2 kernel to increase your chance of
getting this to work (works for me of course).


> My board have no ipu and  gst-imx components activated. So I have no
> hardware image processing unit and have no gst components for hardware
> color
> space converting.  I choice glcolorconvert but it dont work as need...
>

The GPU is unlikely to handle this. Consider patching your kernel with the
OMX m2m staging scaler, that will show up as v4l2convert element.


When reconciling v4l2src and v4l2h264enc, I convert the color space from
> YUY2 to the format that supports IMX6 VPU - NV12. During operation, a CAPS
> negotiation error occurs. As well as an error in the activation of the
> GL-transform. Below is a run log.
>
> https://pastebin.com/raw/YFSWbSYV
>
> I try run pipeline like this:
>
> l_pipelineReadStr = g_strdup_printf( "v4l2src  device=/dev/webcam
> num-buffers=30 ! "
>               " capsfilter caps=\"video/x-raw, format=YUY2,
> pixel-aspect-ratio=1/1, framerate=30/1, width=%1$d, height=%2$d\"
> name=videoconvertcapsfilter ! "
>               " glupload ! "
>               " glcolorconvert name=glcolorconvert_to_qmlglsink_color !
> video/x-raw(memory:GLMemory), format=NV12 !  "
>               " gldownload ! "
>               " queue ! "
>               " v4l2h264enc output-io-mode=dmabuf
> extra-controls=\"controls,h264_level=9,video_bitrate=200000;\" ! "
>               " h264parse ! mp4mux ! filesink
> location=/ext/ssd2/capture.mp4",
>                                                  320, 240 );
>
>
>
> --
> Sent from: http://gstreamer-devel.966125.n4.nabble.com/
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