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1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 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_RTP_HEADER_EXTENSION_H_ | 11 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSION_H_ |
12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSION_H_ | 12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSION_H_ |
13 | 13 |
14 #include <initializer_list> | |
15 #include <string> | 14 #include <string> |
16 | 15 |
| 16 #include "webrtc/base/array_view.h" |
17 #include "webrtc/base/basictypes.h" | 17 #include "webrtc/base/basictypes.h" |
18 #include "webrtc/base/checks.h" | 18 #include "webrtc/base/checks.h" |
19 #include "webrtc/config.h" | 19 #include "webrtc/config.h" |
20 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" | 20 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" |
21 | 21 |
22 namespace webrtc { | 22 namespace webrtc { |
23 | 23 |
24 const uint16_t kRtpOneByteHeaderExtensionId = 0xBEDE; | 24 const uint16_t kRtpOneByteHeaderExtensionId = 0xBEDE; |
25 | 25 |
26 const size_t kRtpOneByteHeaderLength = 4; | 26 const size_t kRtpOneByteHeaderLength = 4; |
(...skipping 10 matching lines...) Expand all Loading... |
37 const int kPlayoutDelayGranularityMs = 10; | 37 const int kPlayoutDelayGranularityMs = 10; |
38 // Maximum playout delay value in milliseconds. | 38 // Maximum playout delay value in milliseconds. |
39 const int kPlayoutDelayMaxMs = 40950; | 39 const int kPlayoutDelayMaxMs = 40950; |
40 | 40 |
41 class RtpHeaderExtensionMap { | 41 class RtpHeaderExtensionMap { |
42 public: | 42 public: |
43 static constexpr RTPExtensionType kInvalidType = kRtpExtensionNone; | 43 static constexpr RTPExtensionType kInvalidType = kRtpExtensionNone; |
44 static constexpr uint8_t kInvalidId = 0; | 44 static constexpr uint8_t kInvalidId = 0; |
45 | 45 |
46 RtpHeaderExtensionMap(); | 46 RtpHeaderExtensionMap(); |
47 RtpHeaderExtensionMap(std::initializer_list<RtpExtension>); | 47 explicit RtpHeaderExtensionMap(rtc::ArrayView<const RtpExtension> extensions); |
48 | 48 |
49 template <typename Extension> | 49 template <typename Extension> |
50 bool Register(uint8_t id) { | 50 bool Register(uint8_t id) { |
51 return Register(id, Extension::kId, Extension::kValueSizeBytes, | 51 return Register(id, Extension::kId, Extension::kValueSizeBytes, |
52 Extension::kUri); | 52 Extension::kUri); |
53 } | 53 } |
54 bool RegisterByType(uint8_t id, RTPExtensionType type); | 54 bool RegisterByType(uint8_t id, RTPExtensionType type); |
55 bool RegisterByUri(uint8_t id, const std::string& uri); | 55 bool RegisterByUri(uint8_t id, const std::string& uri); |
56 | 56 |
57 bool IsRegistered(RTPExtensionType type) const { | 57 bool IsRegistered(RTPExtensionType type) const { |
58 return GetId(type) != kInvalidId; | 58 return GetId(type) != kInvalidId; |
59 } | 59 } |
60 // Return kInvalidType if not found. | 60 // Return kInvalidType if not found. |
61 RTPExtensionType GetType(uint8_t id) const { | 61 RTPExtensionType GetType(uint8_t id) const { |
62 RTC_DCHECK_GE(id, kMinId); | 62 RTC_DCHECK_GE(id, kMinId); |
63 RTC_DCHECK_LE(id, kMaxId); | 63 RTC_DCHECK_LE(id, kMaxId); |
64 return types_[id]; | 64 return types_[id]; |
65 } | 65 } |
66 // Return kInvalidId if not found. | 66 // Return kInvalidId if not found. |
67 uint8_t GetId(RTPExtensionType type) const { | 67 uint8_t GetId(RTPExtensionType type) const { |
68 RTC_DCHECK_GT(type, kRtpExtensionNone); | 68 RTC_DCHECK_GT(type, kRtpExtensionNone); |
69 RTC_DCHECK_LT(type, kRtpExtensionNumberOfExtensions); | 69 RTC_DCHECK_LT(type, kRtpExtensionNumberOfExtensions); |
70 return ids_[type]; | 70 return ids_[type]; |
71 } | 71 } |
72 | 72 |
73 size_t GetTotalLengthInBytes() const; | 73 size_t GetTotalLengthInBytes() const; |
74 | 74 |
75 // TODO(danilchap): Remove use of the functions below. | 75 // TODO(danilchap): Remove use of the functions below. |
76 void Erase() { *this = RtpHeaderExtensionMap(); } | |
77 int32_t Register(RTPExtensionType type, uint8_t id) { | 76 int32_t Register(RTPExtensionType type, uint8_t id) { |
78 return RegisterByType(id, type) ? 0 : -1; | 77 return RegisterByType(id, type) ? 0 : -1; |
79 } | 78 } |
80 int32_t Deregister(RTPExtensionType type); | 79 int32_t Deregister(RTPExtensionType type); |
81 int32_t GetType(uint8_t id, RTPExtensionType* type) const { | 80 int32_t GetType(uint8_t id, RTPExtensionType* type) const { |
82 *type = GetType(id); | 81 *type = GetType(id); |
83 return *type == kInvalidType ? -1 : 0; | 82 return *type == kInvalidType ? -1 : 0; |
84 } | 83 } |
85 void GetCopy(RtpHeaderExtensionMap* copy) const { *copy = *this; } | 84 void GetCopy(RtpHeaderExtensionMap* copy) const { *copy = *this; } |
86 | 85 |
87 private: | 86 private: |
88 static constexpr uint8_t kMinId = 1; | 87 static constexpr uint8_t kMinId = 1; |
89 static constexpr uint8_t kMaxId = 14; | 88 static constexpr uint8_t kMaxId = 14; |
90 bool Register(uint8_t id, | 89 bool Register(uint8_t id, |
91 RTPExtensionType type, | 90 RTPExtensionType type, |
92 size_t value_size, | 91 size_t value_size, |
93 const char* uri); | 92 const char* uri); |
94 | 93 |
95 size_t total_values_size_bytes_ = 0; | 94 size_t total_values_size_bytes_ = 0; |
96 RTPExtensionType types_[kMaxId + 1]; | 95 RTPExtensionType types_[kMaxId + 1]; |
97 uint8_t ids_[kRtpExtensionNumberOfExtensions]; | 96 uint8_t ids_[kRtpExtensionNumberOfExtensions]; |
98 }; | 97 }; |
| 98 |
99 } // namespace webrtc | 99 } // namespace webrtc |
100 | 100 |
101 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSION_H_ | 101 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSION_H_ |
102 | 102 |
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