1080p @ 60fps for the iMX 6 Quad?

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1080p @ 60fps for the iMX 6 Quad?

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blee99
Contributor I

I am attempting to do video encoding and streaming simultaneously on the iMX 6 Quad. Currently, this is the pipeline that I am using:

gst-launch-1.0 -v videotestsrc num-buffers=300 ! video/x-raw,format=YUY2,width=1280,height=720,framerate=60/1!    videoconvert ! video/x-raw,format=I420 ! \
   tee name=t \
   t. ! queue ! imxvpuenc_h264 ! h264parse ! mp4mux ! filesink location="test-3.mp4" \
   t. ! queue ! imxipuvideosink

* Note that the videotestsrc is to simulate a camera that has a YUY2 output format. 

I can't go beyond 720p @ 60fps [this includes any frame-rate for 1080p as well]. Is this a performance bottleneck due to the hardware or the pipeline that I have setup? Because I am getting warning messages like this:

   WARNING: from element /GstPipeline:pipeline0/GstImxIpuVideoSink:imxipuvideosink0: A lot of buffers are being       dropped.
   Additional debug info:
   gstbasesink.c(2902): gst_base_sink_is_too_late (): /GstPipeline:pipeline0/GstImxIpuVideoSink:imxipuvideosink0:
   There may be a timestamping problem, or this computer is too slow.

Also, if anyone has an iMX 8 board, could you attempt to run 1080p @ 60fps and see whether this pipeline has any performance issues? 

gst-launch-1.0 -v videotestsrc num-buffers=300 ! video/x-raw,format=YUY2,width=1920,height=1080,framerate=60/1!    videoconvert ! video/x-raw,format=I420 ! \
   tee name=t \
   t. ! queue ! imxvpuenc_h264 ! h264parse ! mp4mux ! filesink location="test-3.mp4" \
   t. ! queue ! imxipuvideosink

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joanxie
NXP TechSupport
NXP TechSupport

imx6q can support vpu encoder up to 1080p@30, maybe you can use unit test to test first, for current bsp, imx8 doesn't use imxvpuenc_h264 anymore, use vpuenc_h264, and imx8mm can support 1080p@60 encoding

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