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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 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_PACKET_H_ | 10 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_PACKET_H_ |
11 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_PACKET_H_ | 11 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_PACKET_H_ |
12 | 12 |
13 #include <vector> | 13 #include <vector> |
14 | 14 |
15 #include "webrtc/api/array_view.h" | 15 #include "webrtc/api/array_view.h" |
16 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" | 16 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" |
17 #include "webrtc/rtc_base/basictypes.h" | 17 #include "webrtc/rtc_base/basictypes.h" |
18 #include "webrtc/rtc_base/copyonwritebuffer.h" | 18 #include "webrtc/rtc_base/copyonwritebuffer.h" |
19 | 19 |
20 namespace webrtc { | 20 namespace webrtc { |
21 struct RTPHeader; | |
22 class RtpHeaderExtensionMap; | 21 class RtpHeaderExtensionMap; |
23 class Random; | 22 class Random; |
24 | 23 |
25 namespace rtp { | 24 namespace rtp { |
26 class Packet { | 25 class Packet { |
27 public: | 26 public: |
28 using ExtensionType = RTPExtensionType; | 27 using ExtensionType = RTPExtensionType; |
29 using ExtensionManager = RtpHeaderExtensionMap; | 28 using ExtensionManager = RtpHeaderExtensionMap; |
30 static constexpr size_t kMaxExtensionHeaders = 14; | 29 static constexpr size_t kMaxExtensionHeaders = 14; |
31 static constexpr int kMinExtensionId = 1; | 30 static constexpr int kMinExtensionId = 1; |
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42 void IdentifyExtensions(const ExtensionManager& extensions); | 41 void IdentifyExtensions(const ExtensionManager& extensions); |
43 | 42 |
44 // Header. | 43 // Header. |
45 bool Marker() const; | 44 bool Marker() const; |
46 uint8_t PayloadType() const; | 45 uint8_t PayloadType() const; |
47 uint16_t SequenceNumber() const; | 46 uint16_t SequenceNumber() const; |
48 uint32_t Timestamp() const; | 47 uint32_t Timestamp() const; |
49 uint32_t Ssrc() const; | 48 uint32_t Ssrc() const; |
50 std::vector<uint32_t> Csrcs() const; | 49 std::vector<uint32_t> Csrcs() const; |
51 | 50 |
52 // TODO(danilchap): Remove this function when all code update to use RtpPacket | |
53 // directly. Function is there just for easier backward compatibilty. | |
54 void GetHeader(RTPHeader* header) const; | |
55 | |
56 size_t headers_size() const; | 51 size_t headers_size() const; |
57 | 52 |
58 // Payload. | 53 // Payload. |
59 size_t payload_size() const; | 54 size_t payload_size() const; |
60 size_t padding_size() const; | 55 size_t padding_size() const; |
61 rtc::ArrayView<const uint8_t> payload() const; | 56 rtc::ArrayView<const uint8_t> payload() const; |
62 | 57 |
63 // Buffer. | 58 // Buffer. |
64 rtc::CopyOnWriteBuffer Buffer() const; | 59 rtc::CopyOnWriteBuffer Buffer() const; |
65 size_t capacity() const; | 60 size_t capacity() const; |
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120 | 115 |
121 protected: | 116 protected: |
122 // |extensions| required for SetExtension/ReserveExtension functions during | 117 // |extensions| required for SetExtension/ReserveExtension functions during |
123 // packet creating and used if available in Parse function. | 118 // packet creating and used if available in Parse function. |
124 // Adding and getting extensions will fail until |extensions| is | 119 // Adding and getting extensions will fail until |extensions| is |
125 // provided via constructor or IdentifyExtensions function. | 120 // provided via constructor or IdentifyExtensions function. |
126 Packet(); | 121 Packet(); |
127 explicit Packet(const ExtensionManager* extensions); | 122 explicit Packet(const ExtensionManager* extensions); |
128 Packet(const Packet&); | 123 Packet(const Packet&); |
129 Packet(const ExtensionManager* extensions, size_t capacity); | 124 Packet(const ExtensionManager* extensions, size_t capacity); |
130 virtual ~Packet(); | 125 ~Packet(); |
131 | 126 |
132 Packet& operator=(const Packet&) = default; | 127 Packet& operator=(const Packet&) = default; |
133 | 128 |
134 private: | 129 private: |
135 struct ExtensionInfo { | 130 struct ExtensionInfo { |
136 ExtensionType type; | 131 ExtensionType type; |
137 uint16_t offset; | 132 uint16_t offset; |
138 uint8_t length; | 133 uint8_t length; |
139 }; | 134 }; |
140 | 135 |
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197 auto buffer = AllocateExtension(Extension::kId, Extension::kValueSizeBytes); | 192 auto buffer = AllocateExtension(Extension::kId, Extension::kValueSizeBytes); |
198 if (buffer.empty()) | 193 if (buffer.empty()) |
199 return false; | 194 return false; |
200 memset(buffer.data(), 0, Extension::kValueSizeBytes); | 195 memset(buffer.data(), 0, Extension::kValueSizeBytes); |
201 return true; | 196 return true; |
202 } | 197 } |
203 } // namespace rtp | 198 } // namespace rtp |
204 } // namespace webrtc | 199 } // namespace webrtc |
205 | 200 |
206 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_PACKET_H_ | 201 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_PACKET_H_ |
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