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Commit 75f5fc5e authored by Manikanta Kanamarlapudi's avatar Manikanta Kanamarlapudi Committed by Linux Build Service Account
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libstagefright: mpeg2ts: Ignore continuity_counter discontinuity 

The continuity counter is incremented for each ts packet. Any lost
packet results in a discontinuity, and the stock parser flushes the
current frame data leading to corruption if an I-frame is lost.
Avoid flushing on discontinuity to prevent some of this corruption.

CRs-Fixed: 663391

Change-Id: I683269dcb36a1424f6d9a6e543cf9e1ead0103a7
parent e77e78df

media/libstagefright/mpeg2ts/ATSParser.cpp

+1 −17
Original line number Diff line number Diff line
@@ -535,25 +535,9 @@ status_t ATSParser::Stream::parse( 


    if (mExpectedContinuityCounter >= 0

            && (unsigned)mExpectedContinuityCounter != continuity_counter) {

        ALOGI("discontinuity on stream pid 0x%04x", mElementaryPID);

        ALOGI("discontinuity on stream pid 0x%04x, Ignored", mElementaryPID);



        mPayloadStarted = false;

        mBuffer->setRange(0, 0);

        mExpectedContinuityCounter = -1;



#if 0

        // Uncomment this if you'd rather see no corruption whatsoever on

        // screen and suspend updates until we come across another IDR frame.



        if (mStreamType == STREAMTYPE_H264) {

            ALOGI("clearing video queue");

            mQueue->clear(true /* clearFormat */);

        }

#endif



        if (!payload_unit_start_indicator) {

            return OK;

        }

    }



    mExpectedContinuityCounter = (continuity_counter + 1) & 0x0f;