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1 /* | 1 /* |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_ | 11 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_ |
12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_ | 12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_ |
13 | 13 |
14 #include "webrtc/base/basictypes.h" | 14 #include "webrtc/base/basictypes.h" |
15 #include "webrtc/base/constructormagic.h" | 15 #include "webrtc/base/constructormagic.h" |
16 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/psfb.h" | 16 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/psfb.h" |
17 #include "webrtc/modules/rtp_rtcp/source/rtcp_utility.h" | |
18 | 17 |
19 namespace webrtc { | 18 namespace webrtc { |
20 namespace rtcp { | 19 namespace rtcp { |
| 20 class CommonHeader; |
| 21 |
21 // Reference picture selection indication (RPSI) (RFC 4585). | 22 // Reference picture selection indication (RPSI) (RFC 4585). |
22 // Assumes native bit string stores PictureId (VP8, VP9). | 23 // Assumes native bit string stores PictureId (VP8, VP9). |
23 class Rpsi : public Psfb { | 24 class Rpsi : public Psfb { |
24 public: | 25 public: |
25 static const uint8_t kFeedbackMessageType = 3; | 26 static constexpr uint8_t kFeedbackMessageType = 3; |
26 Rpsi(); | 27 Rpsi(); |
27 ~Rpsi() override {} | 28 ~Rpsi() override {} |
28 | 29 |
29 // Parse assumes header is already parsed and validated. | 30 // Parse assumes header is already parsed and validated. |
30 bool Parse(const RTCPUtility::RtcpCommonHeader& header, | 31 bool Parse(const CommonHeader& packet); |
31 const uint8_t* payload); // Size of the payload is in the header. | |
32 | 32 |
33 void WithPayloadType(uint8_t payload); | 33 void WithPayloadType(uint8_t payload); |
34 void WithPictureId(uint64_t picture_id); | 34 void WithPictureId(uint64_t picture_id); |
35 | 35 |
36 uint8_t payload_type() const { return payload_type_; } | 36 uint8_t payload_type() const { return payload_type_; } |
37 uint64_t picture_id() const { return picture_id_; } | 37 uint64_t picture_id() const { return picture_id_; } |
38 | 38 |
39 protected: | 39 protected: |
40 bool Create(uint8_t* packet, | 40 bool Create(uint8_t* packet, |
41 size_t* index, | 41 size_t* index, |
42 size_t max_length, | 42 size_t max_length, |
43 RtcpPacket::PacketReadyCallback* callback) const override; | 43 RtcpPacket::PacketReadyCallback* callback) const override; |
44 | 44 |
45 private: | 45 private: |
46 size_t BlockLength() const override { return block_length_; } | 46 size_t BlockLength() const override { return block_length_; } |
47 static size_t CalculateBlockLength(uint8_t bitstring_size_bytes); | 47 static size_t CalculateBlockLength(uint8_t bitstring_size_bytes); |
48 | 48 |
49 uint8_t payload_type_; | 49 uint8_t payload_type_; |
50 uint64_t picture_id_; | 50 uint64_t picture_id_; |
51 size_t block_length_; | 51 size_t block_length_; |
52 | 52 |
53 RTC_DISALLOW_COPY_AND_ASSIGN(Rpsi); | 53 RTC_DISALLOW_COPY_AND_ASSIGN(Rpsi); |
54 }; | 54 }; |
55 } // namespace rtcp | 55 } // namespace rtcp |
56 } // namespace webrtc | 56 } // namespace webrtc |
57 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_ | 57 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_ |
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