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DM368 1080P60 and de-interlacing

TIguru
Expert 1430 points

Team,

Is the DM368 capable of performing the following:

" Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Input 1080i60, then de-interlace, scale down to 800x350, and then send out 54MB/s stream across the USB to a Host PC?  Do I need to do compression?  I prefer not to.  At most maybe a simple MJPEG to get the rate down a little."

 

Any help you can offer will be greatly appreciated.

  • 0
    TI__Mastermind 19985 points

    Hi,

    Enrique Encarnacion said:
    Input 1080i60, then de-interlace, scale down to 800x350, and then send out 54MB/s stream across the USB to a Host PC?  Do I need to do compression?  I prefer not to.  At most maybe a simple MJPEG to get the rate down a little."

     

    54MB/sec on USB is not possible. We have a USB2.0 host which limits to theoretical 60MB/s bus bandwidth. Realistically, on any USB2.0 host, the payload throughput cant go to 54MB/sec.

    So we need to use compression. Now MJPEG compressions should be good and we can stream out the MJPEG content at 30fps without any problems on USB. We have tested upto 8 - 10MB/sec which is a good quality compression for a 720P framesize.

    Hope this helps.

    Regards,

    Anshuman

    PS: Please mark this post as verified, if you think it has answred your question. Thanks.

  • 0
    TI__Mastermind 43875 points

    Enrique,

    800x350 @60 uncompressed would only require about 34MB/s, which might help you reach your USB goal.

    BR,

    Steve