0fc37d7dec
BUG=webrtc:5260 Review-Url: https://codereview.webrtc.org/2023803002 Cr-Commit-Position: refs/heads/master@{#12965}
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_
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#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_
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#include "webrtc/base/basictypes.h"
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#include "webrtc/base/constructormagic.h"
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#include "webrtc/modules/rtp_rtcp/source/rtcp_packet/psfb.h"
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namespace webrtc {
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namespace rtcp {
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class CommonHeader;
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// Reference picture selection indication (RPSI) (RFC 4585).
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// Assumes native bit string stores PictureId (VP8, VP9).
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class Rpsi : public Psfb {
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public:
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static constexpr uint8_t kFeedbackMessageType = 3;
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Rpsi();
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~Rpsi() override {}
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// Parse assumes header is already parsed and validated.
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bool Parse(const CommonHeader& packet);
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void WithPayloadType(uint8_t payload);
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void WithPictureId(uint64_t picture_id);
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uint8_t payload_type() const { return payload_type_; }
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uint64_t picture_id() const { return picture_id_; }
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protected:
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bool Create(uint8_t* packet,
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size_t* index,
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size_t max_length,
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RtcpPacket::PacketReadyCallback* callback) const override;
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private:
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size_t BlockLength() const override { return block_length_; }
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static size_t CalculateBlockLength(uint8_t bitstring_size_bytes);
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uint8_t payload_type_;
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uint64_t picture_id_;
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size_t block_length_;
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RTC_DISALLOW_COPY_AND_ASSIGN(Rpsi);
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};
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} // namespace rtcp
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} // namespace webrtc
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#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_
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