Moving src/webrtc into src/.
In order to eliminate the WebRTC Subtree mirror in Chromium, WebRTC is moving the content of the src/webrtc directory up to the src/ directory. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38 Reviewed-on: https://webrtc-review.googlesource.com/1560 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19845}
This commit is contained in:
committed by
Commit Bot
parent
6674846b4a
commit
bb547203bf
73
modules/rtp_rtcp/source/rtcp_packet/pli.cc
Normal file
73
modules/rtp_rtcp/source/rtcp_packet/pli.cc
Normal file
@ -0,0 +1,73 @@
|
||||
/*
|
||||
* Copyright (c) 2015 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/rtp_rtcp/source/rtcp_packet/pli.h"
|
||||
|
||||
#include "webrtc/modules/rtp_rtcp/source/rtcp_packet/common_header.h"
|
||||
#include "webrtc/rtc_base/checks.h"
|
||||
#include "webrtc/rtc_base/logging.h"
|
||||
|
||||
namespace webrtc {
|
||||
namespace rtcp {
|
||||
constexpr uint8_t Pli::kFeedbackMessageType;
|
||||
// RFC 4585: Feedback format.
|
||||
//
|
||||
// Common packet format:
|
||||
//
|
||||
// 0 1 2 3
|
||||
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
// |V=2|P| FMT | PT | length |
|
||||
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
// | SSRC of packet sender |
|
||||
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
// | SSRC of media source |
|
||||
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
// : Feedback Control Information (FCI) :
|
||||
// : :
|
||||
|
||||
//
|
||||
// Picture loss indication (PLI) (RFC 4585).
|
||||
// FCI: no feedback control information.
|
||||
bool Pli::Parse(const CommonHeader& packet) {
|
||||
RTC_DCHECK_EQ(packet.type(), kPacketType);
|
||||
RTC_DCHECK_EQ(packet.fmt(), kFeedbackMessageType);
|
||||
|
||||
if (packet.payload_size_bytes() < kCommonFeedbackLength) {
|
||||
LOG(LS_WARNING) << "Packet is too small to be a valid PLI packet";
|
||||
return false;
|
||||
}
|
||||
|
||||
ParseCommonFeedback(packet.payload());
|
||||
return true;
|
||||
}
|
||||
|
||||
size_t Pli::BlockLength() const {
|
||||
return kHeaderLength + kCommonFeedbackLength;
|
||||
}
|
||||
|
||||
bool Pli::Create(uint8_t* packet,
|
||||
size_t* index,
|
||||
size_t max_length,
|
||||
RtcpPacket::PacketReadyCallback* callback) const {
|
||||
while (*index + BlockLength() > max_length) {
|
||||
if (!OnBufferFull(packet, index, callback))
|
||||
return false;
|
||||
}
|
||||
|
||||
CreateHeader(kFeedbackMessageType, kPacketType, HeaderLength(), packet,
|
||||
index);
|
||||
CreateCommonFeedback(packet + *index);
|
||||
*index += kCommonFeedbackLength;
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace rtcp
|
||||
} // namespace webrtc
|
||||
Reference in New Issue
Block a user