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/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/modules/video_coding/packet.h"
#include <assert.h>
#include "webrtc/modules/include/module_common_types.h"
namespace webrtc {
VCMPacket::VCMPacket()
: payloadType(0),
timestamp(0),
ntp_time_ms_(0),
seqNum(0),
dataPtr(NULL),
sizeBytes(0),
markerBit(false),
frameType(kEmptyFrame),
codec(kVideoCodecUnknown),
isFirstPacket(false),
completeNALU(kNaluUnset),
insertStartCode(false),
width(0),
height(0),
codecSpecificHeader() {}
VCMPacket::VCMPacket(const uint8_t* ptr,
const size_t size,
const WebRtcRTPHeader& rtpHeader)
: payloadType(rtpHeader.header.payloadType),
timestamp(rtpHeader.header.timestamp),
ntp_time_ms_(rtpHeader.ntp_time_ms),
seqNum(rtpHeader.header.sequenceNumber),
dataPtr(ptr),
sizeBytes(size),
markerBit(rtpHeader.header.markerBit),
frameType(rtpHeader.frameType),
codec(kVideoCodecUnknown),
isFirstPacket(rtpHeader.type.Video.isFirstPacket),
completeNALU(kNaluComplete),
insertStartCode(false),
width(rtpHeader.type.Video.width),
height(rtpHeader.type.Video.height),
codecSpecificHeader(rtpHeader.type.Video) {
CopyCodecSpecifics(rtpHeader.type.Video);
}
VCMPacket::VCMPacket(const uint8_t* ptr,
size_t size,
uint16_t seq,
uint32_t ts,
bool mBit)
: payloadType(0),
timestamp(ts),
ntp_time_ms_(0),
seqNum(seq),
dataPtr(ptr),
sizeBytes(size),
markerBit(mBit),
frameType(kVideoFrameDelta),
codec(kVideoCodecUnknown),
isFirstPacket(false),
completeNALU(kNaluComplete),
insertStartCode(false),
width(0),
height(0),
codecSpecificHeader() {}
void VCMPacket::Reset() {
payloadType = 0;
timestamp = 0;
ntp_time_ms_ = 0;
seqNum = 0;
dataPtr = NULL;
sizeBytes = 0;
markerBit = false;
frameType = kEmptyFrame;
codec = kVideoCodecUnknown;
isFirstPacket = false;
completeNALU = kNaluUnset;
insertStartCode = false;
width = 0;
height = 0;
memset(&codecSpecificHeader, 0, sizeof(RTPVideoHeader));
}
void VCMPacket::CopyCodecSpecifics(const RTPVideoHeader& videoHeader) {
if (markerBit) {
codecSpecificHeader.rotation = videoHeader.rotation;
}
switch (videoHeader.codec) {
case kRtpVideoVp8:
// Handle all packets within a frame as depending on the previous packet
// TODO(holmer): This should be changed to make fragments independent
// when the VP8 RTP receiver supports fragments.
if (isFirstPacket && markerBit)
completeNALU = kNaluComplete;
else if (isFirstPacket)
completeNALU = kNaluStart;
else if (markerBit)
completeNALU = kNaluEnd;
else
completeNALU = kNaluIncomplete;
codec = kVideoCodecVP8;
return;
case kRtpVideoVp9:
if (isFirstPacket && markerBit)
completeNALU = kNaluComplete;
else if (isFirstPacket)
completeNALU = kNaluStart;
else if (markerBit)
completeNALU = kNaluEnd;
else
completeNALU = kNaluIncomplete;
codec = kVideoCodecVP9;
return;
case kRtpVideoH264:
isFirstPacket = videoHeader.isFirstPacket;
if (isFirstPacket)
insertStartCode = true;
if (isFirstPacket && markerBit) {
completeNALU = kNaluComplete;
} else if (isFirstPacket) {
completeNALU = kNaluStart;
} else if (markerBit) {
completeNALU = kNaluEnd;
} else {
completeNALU = kNaluIncomplete;
}
codec = kVideoCodecH264;
return;
case kRtpVideoGeneric:
case kRtpVideoNone:
codec = kVideoCodecUnknown;
return;
}
}
} // namespace webrtc
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