webrtc/modules/rtp_rtcp/source/rtp_dependency_descriptor_extension.cc
Danil Chapovalov 6ed60e39dc Implement Dependency Descriptor writer
Bug: webrtc:10342
Change-Id: I561825265c0990864e1d16aeed4afbdd98871940
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/153350
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29232}
2019-09-19 08:51:40 +00:00

50 lines
1.8 KiB
C++

/*
* Copyright (c) 2019 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 "modules/rtp_rtcp/source/rtp_dependency_descriptor_extension.h"
#include <cstdint>
#include "api/array_view.h"
#include "common_video/generic_frame_descriptor/generic_frame_info.h"
#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
#include "modules/rtp_rtcp/source/rtp_dependency_descriptor_reader.h"
#include "modules/rtp_rtcp/source/rtp_dependency_descriptor_writer.h"
#include "rtc_base/numerics/divide_round.h"
namespace webrtc {
constexpr RTPExtensionType RtpDependencyDescriptorExtension::kId;
constexpr char RtpDependencyDescriptorExtension::kUri[];
bool RtpDependencyDescriptorExtension::Parse(
rtc::ArrayView<const uint8_t> data,
const FrameDependencyStructure* structure,
DependencyDescriptor* descriptor) {
RtpDependencyDescriptorReader reader(data, structure, descriptor);
return reader.ParseSuccessful();
}
size_t RtpDependencyDescriptorExtension::ValueSize(
const FrameDependencyStructure& structure,
const DependencyDescriptor& descriptor) {
RtpDependencyDescriptorWriter writer(/*data=*/{}, structure, descriptor);
return DivideRoundUp(writer.ValueSizeBits(), 8);
}
bool RtpDependencyDescriptorExtension::Write(
rtc::ArrayView<uint8_t> data,
const FrameDependencyStructure& structure,
const DependencyDescriptor& descriptor) {
RtpDependencyDescriptorWriter writer(data, structure, descriptor);
return writer.Write();
}
} // namespace webrtc