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
******************************************************************************/
