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problem with VIDDEC2_process

miscellanea
Prodigy 220 points

I have a sequence with P P P ... I frames in which P frame occurs before SPS and IDR.

When I decode the first P frame by calling VIDDEC2_process(hVd->hDecode, &inBufDesc, &outBufDesc, &inArgs, &outArgs).

The VIDDEC2_process returns with outArgs.outBufsInUseFlag = 1.

I found the following from user guide:

outBufsInUseFlag - Flag to indicate that the outBufs provided with the process() call are in use. No outBufs are required to be supplied with the next process() call.

So my question is, what should I do in next process?

I have tried the following, all fails.

A. VIDDEC2_process(hVd->hDecode, &inBufDesc, NULL, &inArgs, &outArgs)

B.

outBufDesc.numBufs = 0;

VIDDEC2_process(hVd->hDecode, &inBufDesc, &outBufDesc, &inArgs, &outArgs)

C.

outBufDesc.bufs = NULL;

VIDDEC2_process(hVd->hDecode, &inBufDesc, &outBufDesc, &inArgs, &outArgs)