Multiple video streams problem on DM648

Hi,

Sorry for the delayed response!!

I am assuming you are using TI's PSP VPORT driver.

To dig this problem could you answer the following:

1. Which version of PSP driver are you using?

2. How are you connecting the 4 video to DM648 - which VPORTs are you using?

3. Could you share the driver configuration?

These will give me some insight in to the problem.

Regards,

Sivaraj R

1. I use TI's PSP VPORT driver version pspdrivers_1_10_00 from dvsdk_1_11_00_00_DM648.

2. Four TVP5150AM1 convert NTSC to BT656 format. These BT656 streams come to VPORT0 A and B and VPORT1 A and B. I use VPORT2  to send composed video to video-port of DaVinci DM6446 processor.

3.What do you mean "driver configuration"? Below is a source code of minimal version (built from VPORT exapmle) that does not work (VPORTx_init is ommited)

/*
 *  Copyright 2008 by Texas Instruments Incorporated.
 *  All rights reserved. Property of Texas Instruments Incorporated.
 *  Restricted rights to use, duplicate or disclose this code are
 *  granted through contract.
 *
 *  @(#) dvsdk_1_11_00_00 1.11.00.00 061808 (biosdvsdk-c00x)
 */
/*
 * ======== video_preview.c ========
 *
 */

#include "51xx/tvp51xx.h"

#define CAP_PARAMS_PORT_5150(enableDualChan) {                          \
    enableDualChan,             /* enableDualChan                  */   \
    VPORT_POLARITY_ACTIVE_HIGH, /* vport control pin 1 polarity    */   \
    VPORT_POLARITY_ACTIVE_HIGH, /* vport control pin 2 polarity    */   \
    VPORT_POLARITY_ACTIVE_HIGH, /* vport control pin 3 polarity    */   \
    &TVP5150_Fxns,                                                      \
    &TVP5150_Fxns,                                                      \
}

/* Video Port configuration parameters for Capture.*/
VPORT_PortParams vCapParamsPort = CAP_PARAMS_PORT_5150(TRUE);

/* Video Port configuration parameters for display.*/
VPORT_PortParams vDisParamsPort = DIS_PARAMS_PORT_RAW_DEFAULT;

/* Vport Capture driver configuration. Using embedded sync. */
static VPORTCAP_Params vCapParamsChan  = CAP_PARAMS_CHAN_BT656_DEFAULT(NTSC);

#define CAP_PARAMS_TVP5150_EMBEDDED_DEFAULT(mode, afmt) {               \
    TVP5150_MODE_##mode##,              /* Mode            */           \
    TVP5150_AFMT_##afmt##,              /* Analog format   */           \
    TRUE                                /* enableBT656Sync */           \
}
/* TVP5150 EDC driver configuration.
   Using embedded sync and Composite Analog Channel A for all 8 decoders. */
static TVP5150_ConfParams vCapParamsTVP51XX[MAX_CAP_CHAN] = {
    CAP_PARAMS_TVP5150_EMBEDDED_DEFAULT(NTSC,COMPOSITE_A),
    CAP_PARAMS_TVP5150_EMBEDDED_DEFAULT(NTSC,COMPOSITE_A),
    CAP_PARAMS_TVP5150_EMBEDDED_DEFAULT(NTSC,COMPOSITE_A),
    CAP_PARAMS_TVP5150_EMBEDDED_DEFAULT(NTSC,COMPOSITE_A),
    CAP_PARAMS_TVP5150_EMBEDDED_DEFAULT(NTSC,COMPOSITE_A),
    CAP_PARAMS_TVP5150_EMBEDDED_DEFAULT(NTSC,COMPOSITE_A),
    CAP_PARAMS_TVP5150_EMBEDDED_DEFAULT(NTSC,COMPOSITE_A),
    CAP_PARAMS_TVP5150_EMBEDDED_DEFAULT(NTSC,COMPOSITE_A)
};

/* Vport Display driver configuration.  Using embedded sync. */
static VPORTDIS_Params vDisParamsChan = DIS_PARAMS_CHAN_BT656_DEFAULT(NTSC);

/* heap ID defined in the BIOS configuration file */
extern Int DDR2;

/* EDMA3 handle: set as side-effect of calling edma3init() */
extern EDMA3_DRV_Handle hEdma;
/* Defined in an edma3drv "sample" library */
extern EDMA3_DRV_Result edma3init();

/* Number frame buffers per driver */
#define FRAME_BUFF_CNT 3

/*
 * ======== main ========
 */
void main() {
    EDMA3_DRV_Result    result = EDMA3_DRV_SOK;
    /* SOC level and EVM level muxing and configuration code will come here */
    result = edma3init();
    if(EDMA3_DRV_SOK != result)
    {
        printf("Can't initialized EDMA3\n");
        fflush(stdout);
        exit(0);
    }
    return;
}

/*
 * ======== video_preview ========
 */
void video_preview(void) {
    FVID_Frame *frameBuffPtr = NULL;
    FVID_Frame *frameBuffPtr1 = NULL;
    FVID_Frame *frameBuffPtr2 = NULL;

    FVID_Handle disChan, capChan, capChan1, capChan2;

    int status = 0;
    int i;

    /* Assign EDMA driver handle to channel params */
    vCapParamsChan.hEdma = hEdma;
    vDisParamsChan.hEdma = hEdma;

    /* allocate both capture and display frame buffers in external heap */
    vCapParamsChan.segId = DDR2;
    vDisParamsChan.segId = DDR2;

    /*
     * Setting num frame buffers to zero signals the video drivers to allow
     * the application to own the buffers.
     */
    vCapParamsChan.numFrmBufs = 0;
    vDisParamsChan.numFrmBufs = 0;

    /* create video input channel */
    if (status == 0) {
      capChan = FVID_create("/VP0CAPTURE/A/0", /* VP0, Channel A, External Decoder 0 */
              IOM_INPUT, &status, (Ptr)&vCapParamsChan, NULL);
    }
    /* create video input channel */
    if (status == 0) {
      capChan1 = FVID_create("/VP0CAPTURE/B/1", /* VP0, Channel B, External Decoder 1 */
              IOM_INPUT, &status, (Ptr)&vCapParamsChan, NULL);
    }

    if (status == 0) {
      capChan2 = FVID_create("/VP1CAPTURE/A/2", /* VP1, Channel A, External Decoder 2 */
              IOM_INPUT, &status, (Ptr)&vCapParamsChan, NULL);
    }

    /* create video output channel, plane 0 */
    if (status == 0) {
      disChan = FVID_create("/VP2DISPLAY", IOM_OUTPUT, /* VP2, External Encoder 0 */
          &status, (Ptr)&vDisParamsChan, NULL);
    }

    /* allocate and prime frame buffers for the capture channel 0 */
    if (status == 0) {
      for (i=0; i < FRAME_BUFF_CNT && status == 0; i++) {
        status = FVID_allocBuffer(capChan, &frameBuffPtr);
        if (status == IOM_COMPLETED)  {
            status = FVID_queue(capChan, &frameBuffPtr);           
        }
      }
    }
   
    /* allocate and prime frame buffers for the capture channel 1 */
    if (status == 0) {
      for (i=0; i < FRAME_BUFF_CNT && status == 0; i++) {
        status = FVID_allocBuffer(capChan1, &frameBuffPtr1);
        if (status == IOM_COMPLETED)  {
            status = FVID_queue(capChan1, &frameBuffPtr1);           
        }
      }
    }

    /* allocate and prime frame buffers for the capture channel 0 */
    if (status == 0) {
      for (i=0; i < FRAME_BUFF_CNT && status == 0; i++) {
        status = FVID_allocBuffer(capChan2, &frameBuffPtr2);
        if (status == IOM_COMPLETED)  {
            status = FVID_queue(capChan2, &frameBuffPtr2);           
        }
      }
    }

    /* allocate and prime frame buffers for the display channel */
    if (status == 0) {
      for (i=0; i < FRAME_BUFF_CNT && status == 0; i++) {
        status = FVID_allocBuffer(disChan, &frameBuffPtr);
        if (status == IOM_COMPLETED)  {
            status = FVID_queue(disChan, &frameBuffPtr);           
        }
      }
    }

    /* configure the TVP5150 video decoder */
    if (status == 0) {

      /* configure video encoder & decoder                  */
//       FVID_control(disChan, VPORT_CMD_EDC_BASE + EDC_CONFIG,
//          (Ptr)&vDisParamsSAA7105);

       status = FVID_control(capChan, VPORT_CMD_EDC_BASE + EDC_CONFIG,
          (Ptr)&vCapParamsTVP51XX[0]);

       status = FVID_control(capChan1, VPORT_CMD_EDC_BASE + EDC_CONFIG,
          (Ptr)&vCapParamsTVP51XX[1]);

       status = FVID_control(capChan2, VPORT_CMD_EDC_BASE + EDC_CONFIG,
          (Ptr)&vCapParamsTVP51XX[2]);

       /* start capture & display operation                  */
       FVID_control(disChan,  VPORT_CMD_START, NULL);
       status = FVID_control(capChan,  VPORT_CMD_START, NULL);
       status = FVID_control(capChan1, VPORT_CMD_START, NULL);
       status = FVID_control(capChan2, VPORT_CMD_START, NULL);
    }

    /* grab first buffer from input queue */
    if (status == 0) {
       FVID_dequeue(disChan, &frameBuffPtr);      
       FVID_dequeue(capChan1, &frameBuffPtr1);
       FVID_dequeue(capChan2, &frameBuffPtr2);      
    }

    /* loop forever performing video capture and display */
    while (status == 0)
    {
       /* grab a fresh video input frame */
       FVID_exchange(capChan, &frameBuffPtr);
       FVID_exchange(capChan1, &frameBuffPtr1);
       FVID_exchange(capChan2, &frameBuffPtr2);
       /* display the video frame */
       FVID_exchange(disChan, &frameBuffPtr);
    }
}

Sivaraj,

Thank you. It works just fine