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Diffstat (limited to 'webrtc/modules/video_coding/packet.cc')
-rw-r--r-- | webrtc/modules/video_coding/packet.cc | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/webrtc/modules/video_coding/packet.cc b/webrtc/modules/video_coding/packet.cc new file mode 100644 index 0000000000..e25de2ed6c --- /dev/null +++ b/webrtc/modules/video_coding/packet.cc @@ -0,0 +1,153 @@ +/* + * 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 |