• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 98 subscribers
  • Views 222 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

MPEG4 simultaneous storing and streaming video

Frank D'Aliesio
Intellectual 715 points


My customer would like to store video to an SD card while simultaneously streaming the video out.  He uses the MPEG4 coprocessor of the DM355 and is currently outputting 720x480 at 30fps.  Does he need to reduce the resolution or frame rate to allow the simultaneous storing and streaming with the DM355 or can he increase RAM and/or go to a DM365 or DM368 to handle this requirement?

Thank you,

Frank

  • 0
    TI__Mastermind 19985 points

    Hi Frank,

    Has the customer already tried out doing simultaneous storing and streaming and do they see some issues? The only thing i can think of is that SD card throughput is not keeping up with the streaming data. I would like to know the bitrate that they are using for MPEG4 D1 30fps stream. Based on that we can make out what is the required performance on SD card.

    What is the software stack they are using? I mean which version of DVSDK or LSP they are using. There have been patches for SD card that can give some performance boost.

    Moving to DM365 or DM368 would surely help as the processor speed is faster as compared to DM355 and hence would give a boost to the performance of SD card.

    Frank D'Aliesio said:
    Does he need to reduce the resolution or frame rate to allow the simultaneous storing and streaming with the DM355

    To specifically answer your above question, i think they should just try reducing bitrate of the stream and test if their requirement is met. That will point to the real bottleneck in they system.

    Regards,

    Anshuman

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