Coda: imx53 plays video with incorrect colors

[Fabio Estevam]

Hi Philipp,

Thanks for your reply.

On Mon, Jan 18, 2021 at 9:40 AM Philipp Zabel <p.zabel at pengutronix.de> wrote:

> The driver could be modified to switch the DP->DI0/DC->DI1 mapping
> around to DP->DI1/DC->DI0 when required. As a simple test, you can
> switch statically with:

It does change the colors but still does not play the video with the
correct colors. Looks like it plays in black-and-white now.

> Or, as a workaround, add a v4l2convert element and use the IC to convert
> to BGRx between decoder and kmssink.

Yes, I have tried to do this, but it says that v4l2convert does not
support bt601 colorimetry, and then a segfault occurs:

# gst-launch-1.0 filesrc location=/media/clip.mp4 ! qtdemux !
h264parse ! v4l2h264dec ! v4l2convert ! video/x-raw,format=BGRx !
kmssink
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /GstPipeline:pipeline0/v4l2convert:v4l2convert0:
Device '/dev/video4' does not support bt601 colorimetry
Additional debug info:
../sys/v4l2/gstv4l2object.c(4032): gst_v4l2_object_set_format_full ():
/GstPipeline:pipeline0/v4l2convert:v4l2convert0:
Device wants 2:4:5:4 colorimetry
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Caught SIGSEGV
exec gdb failed: No such file or directory
Spinning.  Please run 'gdb gst-launch-1.0 217' to continue debugging,
Ctrl-C to quit, or Ctrl-\ to dump core.

Is the Gstreamer pipeline above correct?

Thanks