2ec560606b
This also includes: - Creating new packetizer and depacketizer interfaces. - Moved VP8 packetization was H264 packetization and depacketization to these interfaces. This is a work in progress and should be continued to get this 100% generic. This also required changing the return type for RtpFormatVp8::NextPacket(), which now returns bool instead of the index of the first partition. - Created a Create() factory method for packetizers and depacketizers. R=niklas.enbom@webrtc.org, pbos@webrtc.org Review URL: https://webrtc-codereview.appspot.com/21009004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@6804 4adac7df-926f-26a2-2b94-8c16560cd09d
138 lines
3.7 KiB
C++
138 lines
3.7 KiB
C++
/*
|
|
* 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/interface/module_common_types.h"
|
|
#include "webrtc/modules/video_coding/main/source/packet.h"
|
|
|
|
#include <assert.h>
|
|
|
|
namespace webrtc {
|
|
|
|
VCMPacket::VCMPacket()
|
|
:
|
|
payloadType(0),
|
|
timestamp(0),
|
|
ntp_time_ms_(0),
|
|
seqNum(0),
|
|
dataPtr(NULL),
|
|
sizeBytes(0),
|
|
markerBit(false),
|
|
frameType(kFrameEmpty),
|
|
codec(kVideoCodecUnknown),
|
|
isFirstPacket(false),
|
|
completeNALU(kNaluUnset),
|
|
insertStartCode(false),
|
|
width(0),
|
|
height(0),
|
|
codecSpecificHeader() {
|
|
}
|
|
|
|
VCMPacket::VCMPacket(const uint8_t* ptr,
|
|
const uint32_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, uint32_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 = kFrameEmpty;
|
|
codec = kVideoCodecUnknown;
|
|
isFirstPacket = false;
|
|
completeNALU = kNaluUnset;
|
|
insertStartCode = false;
|
|
width = 0;
|
|
height = 0;
|
|
memset(&codecSpecificHeader, 0, sizeof(RTPVideoHeader));
|
|
}
|
|
|
|
void VCMPacket::CopyCodecSpecifics(const RTPVideoHeader& videoHeader) {
|
|
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 kRtpVideoH264:
|
|
isFirstPacket = videoHeader.isFirstPacket;
|
|
if (isFirstPacket)
|
|
insertStartCode = true;
|
|
|
|
if (videoHeader.codecHeader.H264.single_nalu) {
|
|
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
|