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How to force Intra frames in H.264 encoder?
It can be done using forceFrame parameter of dynamicParams.
Set the following:
SET dynamicParams.forceFrame = IVIDEO_IDR_FRAME;
Call VIDENC1_control() for XDM_SETPARAMS. This will set Force IDR Frame parameter
call VIDENC1_process(). This will generate an IDR frame
而并不执行以下步骤：
SET dynamicParams.forceFrame = IVIDEO_NA_FRAME;
Call VIDENC1_control() for XDM_SETPARAMS. This will set the original parameters for encoding and remove force IDR frame.
call VIDENC1_process(). This will resume normal encoding
printf( "dynParams->forceFrame=%d\n", dynParams->forceFrame );
encStatus.data.buf = NULL;
dynParams->forceFrame = IVIDEO_IDR_FRAME;//test for all IDR
printf( "dynParams->forceFrame=%d\n", dynParams->forceFrame );
status = VIDENC1_control(hEncode, XDM_SETPARAMS, dynParams, &encStatus);
