Merge "m4v_h263: check header first before decoding a frame." into lmp-dev

            mSignalledError = true;

            return;

        }

        // Need to check if header contains new info, e.g., width/height, etc.

        VopHeaderInfo header_info;

        uint8_t *bitstreamTmp = bitstream;

        if (PVDecodeVopHeader(

                    mHandle, &bitstreamTmp, &timestamp, &tmp,

                    &header_info, &useExtTimestamp,

                    outHeader->pBuffer) != PV_TRUE) {

            ALOGE("failed to decode vop header.");

            notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);

            mSignalledError = true;

            return;

        }

        if (handlePortSettingsChange()) {

            return;

        }

        // The PV decoder is lying to us, sometimes it'll claim to only have

        // consumed a subset of the buffer when it clearly consumed all of it.

        // ignore whatever it says...

        if (PVDecodeVideoFrame(

                    mHandle, &bitstream, &timestamp, &tmp,

                    &useExtTimestamp,

                    outHeader->pBuffer) != PV_TRUE) {

        if (PVDecodeVopBody(mHandle, &tmp) != PV_TRUE) {

            ALOGE("failed to decode video frame.");

            notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);