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Delay between 2 dm6467t's connected through network, processing h264

Gerard Guerrero
Intellectual 270 points

Hi,

I've been doing some tests to measure the delay between encode and decode, with the following network connection schema:

dm6467t encoder(h264) -> pc -> dm6467t decoder(h264)

The connections are made over ethernet, and the pc has been configured to forward all ip traffic.

I've measured delays of about 6 seconds between the captured image and the decoded image.

Has anyone run such a test? Can that delay be improved?

I've used the default encoder configuration which is supplied with the dvsdk 3.10.00.12.

Thanks!

  • 0
    TI__Expert 3220 points

    Hello,

    If I understand you correctly, you are sending encoded frames over tcp/ip and back to the EVM. The performance depends on many variables, including network performance, packet size, protocol used and bitrate. If you want to test the "delay between encode and decode" the encodedecode demo which doesn't use the network is a better measurement.

    Regards, Niclas

  • 0 in reply to Niclas
    Prodigy 20 points

         I have come across the same problem,my delay is about 1.8 seconds.first : to the h264fhdvenc dynparams Maxdelay and OutbufSize can make delay. you can modify these two params of the h264fhdvenc. second :the other bufs also make delay ,such as capture. third, tsmux ....also.

    wish you to slove it.