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Frame_Rate @ 10FPS IPNC_RDK 3.5

Rajesh Kannan
Genius 4480 points
Other Parts Discussed in Thread: DM385

Hi All,

I'm working customized DM385 platform

If I'm passing 30fps encoded data to decoder it's displaying properly

But I'm passing 10fps encoded data to decoder, the playback is as much as faster !!!

Where to control the fps ???

Any relation between fps and decoder ?

Regards,

Rajesh Kannan.S

  • 0
    TI__Guru* 80190 points
    Hello,

    I will notify the IPNC team for help.

    BR
    Margarita
  • 0 in reply to Margarita Gashova
    TI__Expert 8920 points

    Hi,

    You have to implement the rate control at the playback source link.

    You have to provide the bitstream buffers to the IPC Bits Out link at the desired rate.

    For eg, for 10 fps playback you should provide the bistream buffers to the IPC Bits Out link at every 100 msec, you need to insert appropriate delays taking into account the file parse and read overheads.

    regards,

    Anand

  • 0 in reply to Anand Kulkarni71405
    Genius 4480 points
    Hi ,

    I added usleep(100) between BitsIn to BitsOut still it's playing forward...,

    /* IPC Bits In HOST Link params */
    ipcBitsInHostPrm0.baseCreateParams.inQueParams.prevLinkId =
    gVencModuleContext.ipcBitsOutRTOSId;
    ipcBitsInHostPrm0.baseCreateParams.inQueParams.prevLinkQueId = 0;
    MultiCh_ipcBitsInitCreateParams_BitsInHLOS(&ipcBitsInHostPrm0);
    usleep (100);
    OSA_printf("RAJESHKANNAN : ###Effected 100ms delay from Bits_In_Host to Bits_Out### \n");

    /********************************************************************************************************************/
    /************************************************ DECODE PATH *******************************************************/
    /********************************************************************************************************************/

    ipcBitsOutHostPrm.baseCreateParams.inputFrameRate = 10 ;
    ipcBitsOutHostPrm.baseCreateParams.outputFrameRate = 10 ;
    ipcBitsOutHostPrm.baseCreateParams.inQueParams.prevLinkQueId = 0 ;
    ipcBitsOutHostPrm.baseCreateParams.numOutQue = 1 ;
    ipcBitsOutHostPrm.baseCreateParams.outQueParams[0].nextLink = gVdecModuleContext.ipcBitsInRTOSId ;
    ipcBitsOutHostPrm.baseCreateParams.notifyNextLink = TRUE;
    ipcBitsOutHostPrm.baseCreateParams.notifyPrevLink = FALSE;
    ipcBitsOutHostPrm.baseCreateParams.noNotifyMode = FALSE;

    Regards,

    Rajesh Kannan.S
  • 0 in reply to Rajesh Kannan
    TI__Expert 8920 points

    Hi,

    You have introduced 100 microseconds delay and not 100 milliseconds.

    Pl. change the delay to usleep(100000);

    regards,

    Anand

  • 0 in reply to Anand Kulkarni71405
    TI__Expert 8920 points

    Hi,

    The delay should be between 'IpcBitsOutLink_getEmptyVideoBitStreamBufs()' and 'IpcBitsOutLink_putFullVideoBitStreamBufs()' calls in your playback thread.

    This delay will make sure you are putting full bitstream buffer at an interval of 100 msec.

    regards,

    Anand