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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 #include "webrtc/base/checks.h" | 11 #include "webrtc/base/checks.h" |
12 #include "webrtc/common_types.h" | 12 #include "webrtc/common_types.h" |
13 | 13 |
14 #include <limits> | |
15 #include <string.h> | 14 #include <string.h> |
16 | 15 |
17 namespace webrtc { | 16 namespace webrtc { |
18 | 17 |
19 StreamDataCounters::StreamDataCounters() : first_packet_time_ms(-1) {} | 18 StreamDataCounters::StreamDataCounters() : first_packet_time_ms(-1) {} |
20 | 19 |
21 RTPHeaderExtension::RTPHeaderExtension() | 20 RTPHeaderExtension::RTPHeaderExtension() |
22 : hasTransmissionTimeOffset(false), | 21 : hasTransmissionTimeOffset(false), |
23 transmissionTimeOffset(0), | 22 transmissionTimeOffset(0), |
24 hasAbsoluteSendTime(false), | 23 hasAbsoluteSendTime(false), |
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53 startBitrate(0), | 52 startBitrate(0), |
54 maxBitrate(0), | 53 maxBitrate(0), |
55 minBitrate(0), | 54 minBitrate(0), |
56 targetBitrate(0), | 55 targetBitrate(0), |
57 maxFramerate(0), | 56 maxFramerate(0), |
58 qpMax(0), | 57 qpMax(0), |
59 numberOfSimulcastStreams(0), | 58 numberOfSimulcastStreams(0), |
60 simulcastStream(), | 59 simulcastStream(), |
61 spatialLayers(), | 60 spatialLayers(), |
62 mode(kRealtimeVideo), | 61 mode(kRealtimeVideo), |
63 expect_encode_from_texture(false), | |
64 codecSpecific() {} | 62 codecSpecific() {} |
65 | 63 |
66 VideoCodecVP8* VideoCodec::VP8() { | 64 VideoCodecVP8* VideoCodec::VP8() { |
67 RTC_DCHECK_EQ(codecType, kVideoCodecVP8); | 65 RTC_DCHECK_EQ(codecType, kVideoCodecVP8); |
68 return &codecSpecific.VP8; | 66 return &codecSpecific.VP8; |
69 } | 67 } |
70 | 68 |
71 const VideoCodecVP8& VideoCodec::VP8() const { | 69 const VideoCodecVP8& VideoCodec::VP8() const { |
72 RTC_DCHECK_EQ(codecType, kVideoCodecVP8); | 70 RTC_DCHECK_EQ(codecType, kVideoCodecVP8); |
73 return codecSpecific.VP8; | 71 return codecSpecific.VP8; |
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86 VideoCodecH264* VideoCodec::H264() { | 84 VideoCodecH264* VideoCodec::H264() { |
87 RTC_DCHECK_EQ(codecType, kVideoCodecH264); | 85 RTC_DCHECK_EQ(codecType, kVideoCodecH264); |
88 return &codecSpecific.H264; | 86 return &codecSpecific.H264; |
89 } | 87 } |
90 | 88 |
91 const VideoCodecH264& VideoCodec::H264() const { | 89 const VideoCodecH264& VideoCodec::H264() const { |
92 RTC_DCHECK_EQ(codecType, kVideoCodecH264); | 90 RTC_DCHECK_EQ(codecType, kVideoCodecH264); |
93 return codecSpecific.H264; | 91 return codecSpecific.H264; |
94 } | 92 } |
95 | 93 |
96 static const char* kPayloadNameVp8 = "VP8"; | |
97 static const char* kPayloadNameVp9 = "VP9"; | |
98 static const char* kPayloadNameH264 = "H264"; | |
99 static const char* kPayloadNameI420 = "I420"; | |
100 static const char* kPayloadNameRED = "RED"; | |
101 static const char* kPayloadNameULPFEC = "ULPFEC"; | |
102 static const char* kPayloadNameGeneric = "Generic"; | |
103 | |
104 rtc::Optional<std::string> CodecTypeToPayloadName(VideoCodecType type) { | |
105 switch (type) { | |
106 case kVideoCodecVP8: | |
107 return rtc::Optional<std::string>(kPayloadNameVp8); | |
108 case kVideoCodecVP9: | |
109 return rtc::Optional<std::string>(kPayloadNameVp9); | |
110 case kVideoCodecH264: | |
111 return rtc::Optional<std::string>(kPayloadNameH264); | |
112 case kVideoCodecI420: | |
113 return rtc::Optional<std::string>(kPayloadNameI420); | |
114 case kVideoCodecRED: | |
115 return rtc::Optional<std::string>(kPayloadNameRED); | |
116 case kVideoCodecULPFEC: | |
117 return rtc::Optional<std::string>(kPayloadNameULPFEC); | |
118 case kVideoCodecGeneric: | |
119 return rtc::Optional<std::string>(kPayloadNameGeneric); | |
120 default: | |
121 return rtc::Optional<std::string>(); | |
122 } | |
123 } | |
124 | |
125 rtc::Optional<VideoCodecType> PayloadNameToCodecType(const std::string& name) { | |
126 if (name == kPayloadNameVp8) | |
127 return rtc::Optional<VideoCodecType>(kVideoCodecVP8); | |
128 if (name == kPayloadNameVp9) | |
129 return rtc::Optional<VideoCodecType>(kVideoCodecVP9); | |
130 if (name == kPayloadNameH264) | |
131 return rtc::Optional<VideoCodecType>(kVideoCodecH264); | |
132 if (name == kPayloadNameI420) | |
133 return rtc::Optional<VideoCodecType>(kVideoCodecI420); | |
134 if (name == kPayloadNameRED) | |
135 return rtc::Optional<VideoCodecType>(kVideoCodecRED); | |
136 if (name == kPayloadNameULPFEC) | |
137 return rtc::Optional<VideoCodecType>(kVideoCodecULPFEC); | |
138 if (name == kPayloadNameGeneric) | |
139 return rtc::Optional<VideoCodecType>(kVideoCodecGeneric); | |
140 return rtc::Optional<VideoCodecType>(); | |
141 } | |
142 | |
143 const size_t BitrateAllocation::kMaxBitrateBps = | |
144 std::numeric_limits<size_t>::max(); | |
145 | |
146 BitrateAllocation::BitrateAllocation() : sum_(0), bitrates_{} {} | |
147 | |
148 bool BitrateAllocation::SetBitrate(size_t spatial_index, | |
149 size_t temporal_index, | |
150 uint32_t bitrate_bps) { | |
151 RTC_DCHECK_LT(spatial_index, static_cast<size_t>(kMaxSpatialLayers)); | |
152 RTC_DCHECK_LT(temporal_index, static_cast<size_t>(kMaxTemporalStreams)); | |
153 RTC_DCHECK_LE(bitrates_[spatial_index][temporal_index], sum_); | |
154 uint64_t new_bitrate_sum_bps = sum_; | |
155 new_bitrate_sum_bps -= bitrates_[spatial_index][temporal_index]; | |
156 new_bitrate_sum_bps += bitrate_bps; | |
157 if (new_bitrate_sum_bps > kMaxBitrateBps) | |
158 return false; | |
159 | |
160 bitrates_[spatial_index][temporal_index] = bitrate_bps; | |
161 sum_ = static_cast<uint32_t>(new_bitrate_sum_bps); | |
162 return true; | |
163 } | |
164 | |
165 uint32_t BitrateAllocation::GetBitrate(size_t spatial_index, | |
166 size_t temporal_index) const { | |
167 RTC_DCHECK_LT(spatial_index, static_cast<size_t>(kMaxSpatialLayers)); | |
168 RTC_DCHECK_LT(temporal_index, static_cast<size_t>(kMaxTemporalStreams)); | |
169 return bitrates_[spatial_index][temporal_index]; | |
170 } | |
171 | |
172 // Get the sum of all the temporal layer for a specific spatial layer. | |
173 uint32_t BitrateAllocation::GetSpatialLayerSum(size_t spatial_index) const { | |
174 RTC_DCHECK_LT(spatial_index, static_cast<size_t>(kMaxSpatialLayers)); | |
175 uint32_t sum = 0; | |
176 for (int i = 0; i < kMaxTemporalStreams; ++i) | |
177 sum += bitrates_[spatial_index][i]; | |
178 return sum; | |
179 } | |
180 | |
181 } // namespace webrtc | 94 } // namespace webrtc |
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