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Hardware accelerated video performance

Carol Suman Pinto
Intellectual 500 points

Hi,

I'm using ducati codecs and SGX based videosink on a non-debian based distribution. I followed the steps provided at  http://e2e.ti.com/support/omap/f/849/p/249986/875729.aspx#875729 .

The video performance doesn't seem to be great. The framerate is lesser than the actual framerate. Are the gst ducati plugins and the codecs provided at  https://launchpad.net/~tiomap-dev/+archive/release/  optimized enough for a decent performance? Am i missing out on something?

Thanks in advance,

Carol

  • 0
    TI__Intellectual 1165 points

    Carol,

    Yes, gst-ducati and ducati codecs are optimized enough for either 1080p decode or simultaneous 720P encode and decode.

    However, since you have rebuilt all from scratch on a non-debian distribution, it is easy to overlook a step. When HW decode (gst-ducati) is not functional, decodebin and playbin2 will fallback to SW decode (gst-ffmpeg), with a subpar performance (10 fps or so).

    To double-check that HW codecs are functional, you may run:

    DISPLAY=:0 GST_DEBUG=*:2 gst-launch-0.10 -ev videotestsrc horizontal-speed=4 ! "video/x-raw-yuv, format=(fourcc)NV12, width=1280, height=720, framerate=25/1" ! queue ! ducatih264enc ! ducatih264dec ! queue ! fpsdisplaysink video-sink="dri2videosink" sync=true text-overlay=false signal-fps-measurements=true

    For this 720P enc/dec, the traces should show 25 fps:

    /GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0: last-message = "rendered: 412, dropped: 5, current: 25.00, average: 24.98"

    Regards,
    -- Olivier

  • 0 in reply to Olivier Naudan
    Intellectual 500 points

    Hi Olivier,

    Thank you so much.

    Regards,

    Carol