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the demo program of scene change detection

hank hsieh
Prodigy 10 points


Hi,

I am working on dm814x with DVR_RDK v03.50.00.06, and recently study SCD (scene change detection).

It is strange about the 317 line of demo_vcap_venc_vdec_vdis.c:

#if defined(TI_814X_BUILD) || defined(TI_8107_BUILD)
        vsysParams.enableScd     = FALSE; <====
        vsysParams.numDeis       = 1;
        vsysParams.numSwMs       = 2;
        vsysParams.numDisplays   = 2;
        vsysParams.enableAVsync  = TRUE;
#else
        vsysParams.enableScd     = TRUE;
        vsysParams.numDeis       = 2;
        vsysParams.numSwMs       = 2;
        vsysParams.numDisplays   = 3;
        vsysParams.enableAVsync  = TRUE;
#endif

I set the vsysParams.enableScd to be TURE, but it seems no effect.
the function OSA_semWait (#224 of demo_scd_bits_wr.c) is never returned:
    while(!gScd_ctrl.exitWrThr)
    {
        status = OSA_semWait(&gScd_ctrl.wrSem, OSA_TIMEOUT_FOREVER);
        if(status!=OSA_SOK)
            break;

        trackChId = gScd_ctrl.chIdTrack;             /* so that channel to be displayed/tracked is not changed by parallel threads */

        status = Vcap_getAlgResultBuffer(&bitsBuf, TIMEOUT_NO_WAIT);
    ...

   }