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Add API to get the number of packets discarded by the video jitter buffer due to being too late.

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BUG=
TEST=

Review URL: http://webrtc-codereview.appspot.com/200001

git-svn-id: http://webrtc.googlecode.com/svn/trunk@723 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
stefan@webrtc.org
2011-10-11 07:53:43 +00:00
parent 06887aebae
commit 791eec7424
13 changed files with 506 additions and 205 deletions
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11
src/modules/video_coding/main/source/jitter_buffer.cc
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@@ -81,6 +81,7 @@ VCMJitterBuffer::VCMJitterBuffer(WebRtc_Word32 vcmId, WebRtc_Word32 receiverId,
_dropCount(0),
_numConsecutiveOldFrames(0),
_numConsecutiveOldPackets(0),
_discardedPackets(0),
_jitterEstimate(vcmId, receiverId),
_rttMs(0),
_nackMode(kNoNack),
@@ -134,6 +135,7 @@ VCMJitterBuffer::operator=(const VCMJitterBuffer& rhs)
_dropCount = rhs._dropCount;
_numConsecutiveOldFrames = rhs._numConsecutiveOldFrames;
_numConsecutiveOldPackets = rhs._numConsecutiveOldPackets;
_discardedPackets = rhs._discardedPackets;
_jitterEstimate = rhs._jitterEstimate;
_delayEstimate = rhs._delayEstimate;
_waitingForCompletion = rhs._waitingForCompletion;
@@ -210,6 +212,7 @@ VCMJitterBuffer::Start()
_numConsecutiveOldFrames = 0;
_numConsecutiveOldPackets = 0;
_discardedPackets = 0;
_frameEvent.Reset(); // start in a non-signaled state
_packetEvent.Reset(); // start in a non-signaled state
@@ -438,6 +441,11 @@ VCMJitterBuffer::GetFrameStatistics(WebRtc_UWord32& receivedDeltaFrames,
return 0;
}
WebRtc_UWord32 VCMJitterBuffer::DiscardedPackets() const {
CriticalSectionScoped cs(_critSect);
return _discardedPackets;
}
// Gets frame to use for this timestamp. If no match, get empty frame.
WebRtc_Word32
VCMJitterBuffer::GetFrame(const VCMPacket& packet, VCMEncodedFrame*& frame)
@@ -448,11 +456,12 @@ VCMJitterBuffer::GetFrame(const VCMPacket& packet, VCMEncodedFrame*& frame)
}
_critSect.Enter();
// Make sure that old empty packets are inserted.
if (LatestTimestamp(static_cast<WebRtc_UWord32>(_lastDecodedTimeStamp),
packet.timestamp) == _lastDecodedTimeStamp
&& packet.sizeBytes > 0)
// Make sure that old Empty packets are inserted.
{
_discardedPackets++; // Only counts discarded media packets
// Trying to get an old frame.
_numConsecutiveOldPackets++;
if (_numConsecutiveOldPackets > kMaxConsecutiveOldPackets)