gst_omx_video_enc_set_format: code should not be reached

[Peter Maersk-Moller]

Hi.

Trying to use omxh264enc (1.2.0 with GStreamer 1.6.3) I see, using
gst-inspect-1.0 that the module sink capabilities are reported as:

  video/x-raw
                  width: [ 1, 2147483647 ]
                 height: [ 1, 2147483647 ]
              framerate: [ 0/1, 2147483647/1 ]

Apparently, it does not set limits for format. However it appear that the
modules will only accept I420. Using the following pipeline, it works.


gst-launch-1.0 -v videotestsrc is-live=1 ! \
'video/x-raw,format=I420' ! queue ! omxh264enc ! fakesink

However if the format is replaced with ne of the following formats: RGB,
BGR, ARGB, ABGR, RGBA, BGRA, I get this message:

ERROR: from element /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0:
Internal data flow error.
Additional debug info:
gstbasesrc.c(2943): gst_base_src_loop ():
/GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0:
streaming task paused, reason not-negotiated (-4)

Now if the videoconvert module is add using this pipeline


gst-launch-1.0 -v videotestsrc is-live=1 ! \
'video/x-raw,format=BGRA' ! queue ! omxh264enc ! fakesink

I get the error message:

gst_omx_video_enc_set_format: code should not be reached

Is this a feature or a bug? I would expect that the module at least inform,
using gst-inspect, that it has limitations wrt. formats. But it would be
nice if BGRA (and others) could be supported given the hefty penalty one
has to pay if using videoconvert module on the PI platform.

Best regards
Peter
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