why h264 encoder can't encode 1080*720 or 1920*1080 in davinci_dm365 platform?

Hi all;

I use the encoder demo in "dvsdk_2_10_01_1->dvtb_4_10_03". I chave hanged the frame source to be come from a image sensor.
I changed the colorspace of the result yuv image to be ColorSpace_YUV420PSEMI, And is encoded ok if i use mpeg4 encoder in every resolution.

But when i use h264 encoder, it only succeeds in 640*480 or 720*480 resolution while int other resolution failed. why?

Does any one has Any idea?
thanks.

the video code is as follow.

/******************************************************************************
 * videoThrFxn
 ******************************************************************************/
Void *videoThrFxn(Void *arg)
{
    VideoEnv               *envp                = (VideoEnv *) arg;
    Void                   *status              = THREAD_SUCCESS;
    VIDENC1_Params          defaultParams       = Venc1_Params_DEFAULT;
    VIDENC1_DynamicParams   defaultDynParams    = Venc1_DynamicParams_DEFAULT;
    Venc1_Handle            hVe1                = NULL;
    Engine_Handle           hEngine             = NULL;
    BufTab_Handle           hBufTab             = NULL;
    Int                     frameCnt            = 0;
    Buffer_Handle           hCapBuf, hDstBuf;
    VIDENC1_Params         *params;
    VIDENC1_DynamicParams  *dynParams;
    Int                     fifoRet;
    Int                     bufIdx,i;
   //g_colorSpace is global and is set to be ColorSpace_YUV420PSEMI
    ColorSpace_Type         colorSpace = g_colorSpace;
    Bool                    localBufferAlloc = FALSE;
    /* Open the codec engine */
    hEngine = Engine_open(envp->engineName, NULL, NULL);

    if (hEngine == NULL) {
        printf("Failed to open codec engine %s\n", envp->engineName);
        cleanup(THREAD_FAILURE);
    }
   
    /* Use supplied params if any, otherwise use defaults */
    //indeed we use the defaultparams
    params = envp->params ? envp->params : &defaultParams;
    dynParams = envp->dynParams ? envp->dynParams : &defaultDynParams;

    /* Set up codec parameters */
    params->maxWidth          = envp->imageWidth;
    params->maxHeight         = envp->imageHeight;
    params->encodingPreset    = XDM_HIGH_SPEED;
   if (colorSpace ==  ColorSpace_YUV420PSEMI) {
        params->inputChromaFormat =XDM_YUV_420SP;
    } else {
        params->inputChromaFormat = XDM_YUV_422ILE;
    }
     
    params->reconChromaFormat = XDM_YUV_420SP;
    params->maxFrameRate      = envp->videoFrameRate;

    /* Set up codec parameters depending on bit rate */
    if (envp->videoBitRate < 0) {
        /* Variable bit rate */
        params->rateControlPreset = IVIDEO_NONE;
        params->maxBitRate        = 0;
    }
    else {
        /* Constant bit rate */
        params->rateControlPreset = IVIDEO_STORAGE;
        params->maxBitRate        = envp->videoBitRate;
    }

    dynParams->targetBitRate   = params->maxBitRate;
    dynParams->inputWidth      = params->maxWidth;
    dynParams->inputHeight     = params->maxHeight;   
    dynParams->refFrameRate    = params->maxFrameRate;
    dynParams->targetFrameRate = params->maxFrameRate;
    dynParams->interFrameInterval = 0;
    /* Create the video encoder */
    hVe1 = Venc1_create(hEngine, envp->videoEncoder, params, dynParams);
    if (hVe1 == NULL) {
        ERR("Failed to create video encoder: %s\n", envp->videoEncoder);
        cleanup(THREAD_FAILURE);
    }
    /* Store the output buffer size in the environment */
    envp->outBufSize = Venc1_getOutBufSize(hVe1);

    /* Signal that the codec is created and output buffer size available */
    Rendezvous_meet(envp->hRendezvousWriter);

    /* Signal that initialization is done and wait for other threads */
    Rendezvous_meet(envp->hRendezvousInit);
    while (!gblGetQuit()) {
        /* Pause processing? */
        Pause_test(envp->hPauseProcess);

        /* Get a buffer to encode from the capture thread */
        fifoRet = Fifo_get(envp->hCaptureOutFifo, &hCapBuf);

        /* Get a buffer to encode to from the writer thread */
        fifoRet = Fifo_get(envp->hWriterOutFifo, &hDstBuf);

        /* Make sure the whole buffer is used for input */
        BufferGfx_resetDimensions(hCapBuf);
        /* Decode the video buffer */
        if (Venc1_process(hVe1, hCapBuf, hDstBuf) < 0) {
            ERR("Failed to encode video buffer\n");
            cleanup(THREAD_FAILURE);
        }
        /* Send encoded buffer to writer thread for filesystem output */
        if (Fifo_put(envp->hWriterInFifo, hDstBuf) < 0) {
            ERR("Failed to send buffer to display thread\n");
            cleanup(THREAD_FAILURE);
        }

        /* Return buffer to capture thread */       
        if (Fifo_put(envp->hCaptureInFifo, hCapBuf) < 0) {
            ERR("Failed to send buffer to display thread\n");
            cleanup(THREAD_FAILURE);
        }
       
        /* Increment statistics for the user interface */
        gblIncVideoBytesProcessed(Buffer_getNumBytesUsed(hDstBuf));
        frameCnt++;
    }

cleanup:
    ......
    return status;
}
/******************************************************************************
 * end of videoThrFxn
 ******************************************************************************/

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