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1 /* | 1 /* |
2 * libjingle | 2 * libjingle |
3 * Copyright 2010 Google Inc. | 3 * Copyright 2010 Google Inc. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions are met: | 6 * modification, are permitted provided that the following conditions are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright notice, | 8 * 1. Redistributions of source code must retain the above copyright notice, |
9 * this list of conditions and the following disclaimer. | 9 * this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright notice, | 10 * 2. Redistributions in binary form must reproduce the above copyright notice, |
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49 enum RtpDumpPacketFilter { | 49 enum RtpDumpPacketFilter { |
50 PF_NONE = 0x0, | 50 PF_NONE = 0x0, |
51 PF_RTPHEADER = 0x1, | 51 PF_RTPHEADER = 0x1, |
52 PF_RTPPACKET = 0x3, // includes header | 52 PF_RTPPACKET = 0x3, // includes header |
53 // PF_RTCPHEADER = 0x4, // TODO(juberti) | 53 // PF_RTCPHEADER = 0x4, // TODO(juberti) |
54 PF_RTCPPACKET = 0xC, // includes header | 54 PF_RTCPPACKET = 0xC, // includes header |
55 PF_ALL = 0xF | 55 PF_ALL = 0xF |
56 }; | 56 }; |
57 | 57 |
58 struct RtpDumpFileHeader { | 58 struct RtpDumpFileHeader { |
59 RtpDumpFileHeader(uint32 start_ms, uint32 s, uint16 p); | 59 RtpDumpFileHeader(uint32_t start_ms, uint32_t s, uint16_t p); |
60 void WriteToByteBuffer(rtc::ByteBuffer* buf); | 60 void WriteToByteBuffer(rtc::ByteBuffer* buf); |
61 | 61 |
62 static const char kFirstLine[]; | 62 static const char kFirstLine[]; |
63 static const size_t kHeaderLength = 16; | 63 static const size_t kHeaderLength = 16; |
64 uint32 start_sec; // start of recording, the seconds part. | 64 uint32_t start_sec; // start of recording, the seconds part. |
65 uint32 start_usec; // start of recording, the microseconds part. | 65 uint32_t start_usec; // start of recording, the microseconds part. |
66 uint32 source; // network source (multicast address). | 66 uint32_t source; // network source (multicast address). |
67 uint16 port; // UDP port. | 67 uint16_t port; // UDP port. |
68 uint16 padding; // 2 bytes padding. | 68 uint16_t padding; // 2 bytes padding. |
69 }; | 69 }; |
70 | 70 |
71 struct RtpDumpPacket { | 71 struct RtpDumpPacket { |
72 RtpDumpPacket() {} | 72 RtpDumpPacket() {} |
73 | 73 |
74 RtpDumpPacket(const void* d, size_t s, uint32 elapsed, bool rtcp) | 74 RtpDumpPacket(const void* d, size_t s, uint32_t elapsed, bool rtcp) |
75 : elapsed_time(elapsed), | 75 : elapsed_time(elapsed), original_data_len((rtcp) ? 0 : s) { |
76 original_data_len((rtcp) ? 0 : s) { | |
77 data.resize(s); | 76 data.resize(s); |
78 memcpy(&data[0], d, s); | 77 memcpy(&data[0], d, s); |
79 } | 78 } |
80 | 79 |
81 // In the rtpdump file format, RTCP packets have their data len set to zero, | 80 // In the rtpdump file format, RTCP packets have their data len set to zero, |
82 // since RTCP has an internal length field. | 81 // since RTCP has an internal length field. |
83 bool is_rtcp() const { return original_data_len == 0; } | 82 bool is_rtcp() const { return original_data_len == 0; } |
84 bool IsValidRtpPacket() const; | 83 bool IsValidRtpPacket() const; |
85 bool IsValidRtcpPacket() const; | 84 bool IsValidRtcpPacket() const; |
86 // Get the payload type, sequence number, timestampe, and SSRC of the RTP | 85 // Get the payload type, sequence number, timestampe, and SSRC of the RTP |
87 // packet. Return true and set the output parameter if successful. | 86 // packet. Return true and set the output parameter if successful. |
88 bool GetRtpPayloadType(int* pt) const; | 87 bool GetRtpPayloadType(int* pt) const; |
89 bool GetRtpSeqNum(int* seq_num) const; | 88 bool GetRtpSeqNum(int* seq_num) const; |
90 bool GetRtpTimestamp(uint32* ts) const; | 89 bool GetRtpTimestamp(uint32_t* ts) const; |
91 bool GetRtpSsrc(uint32* ssrc) const; | 90 bool GetRtpSsrc(uint32_t* ssrc) const; |
92 bool GetRtpHeaderLen(size_t* len) const; | 91 bool GetRtpHeaderLen(size_t* len) const; |
93 // Get the type of the RTCP packet. Return true and set the output parameter | 92 // Get the type of the RTCP packet. Return true and set the output parameter |
94 // if successful. | 93 // if successful. |
95 bool GetRtcpType(int* type) const; | 94 bool GetRtcpType(int* type) const; |
96 | 95 |
97 static const size_t kHeaderLength = 8; | 96 static const size_t kHeaderLength = 8; |
98 uint32 elapsed_time; // Milliseconds since the start of recording. | 97 uint32_t elapsed_time; // Milliseconds since the start of recording. |
99 std::vector<uint8> data; // The actual RTP or RTCP packet. | 98 std::vector<uint8_t> data; // The actual RTP or RTCP packet. |
100 size_t original_data_len; // The original length of the packet; may be | 99 size_t original_data_len; // The original length of the packet; may be |
101 // greater than data.size() if only part of the | 100 // greater than data.size() if only part of the |
102 // packet was recorded. | 101 // packet was recorded. |
103 }; | 102 }; |
104 | 103 |
105 class RtpDumpReader { | 104 class RtpDumpReader { |
106 public: | 105 public: |
107 explicit RtpDumpReader(rtc::StreamInterface* stream) | 106 explicit RtpDumpReader(rtc::StreamInterface* stream) |
108 : stream_(stream), | 107 : stream_(stream), |
109 file_header_read_(false), | 108 file_header_read_(false), |
110 first_line_and_file_header_len_(0), | 109 first_line_and_file_header_len_(0), |
111 start_time_ms_(0), | 110 start_time_ms_(0), |
112 ssrc_override_(0) { | 111 ssrc_override_(0) { |
113 } | 112 } |
114 virtual ~RtpDumpReader() {} | 113 virtual ~RtpDumpReader() {} |
115 | 114 |
116 // Use the specified ssrc, rather than the ssrc from dump, for RTP packets. | 115 // Use the specified ssrc, rather than the ssrc from dump, for RTP packets. |
117 void SetSsrc(uint32 ssrc); | 116 void SetSsrc(uint32_t ssrc); |
118 virtual rtc::StreamResult ReadPacket(RtpDumpPacket* packet); | 117 virtual rtc::StreamResult ReadPacket(RtpDumpPacket* packet); |
119 | 118 |
120 protected: | 119 protected: |
121 rtc::StreamResult ReadFileHeader(); | 120 rtc::StreamResult ReadFileHeader(); |
122 bool RewindToFirstDumpPacket() { | 121 bool RewindToFirstDumpPacket() { |
123 return stream_->SetPosition(first_line_and_file_header_len_); | 122 return stream_->SetPosition(first_line_and_file_header_len_); |
124 } | 123 } |
125 | 124 |
126 private: | 125 private: |
127 // Check if its matches "#!rtpplay1.0 address/port\n". | 126 // Check if its matches "#!rtpplay1.0 address/port\n". |
128 bool CheckFirstLine(const std::string& first_line); | 127 bool CheckFirstLine(const std::string& first_line); |
129 | 128 |
130 rtc::StreamInterface* stream_; | 129 rtc::StreamInterface* stream_; |
131 bool file_header_read_; | 130 bool file_header_read_; |
132 size_t first_line_and_file_header_len_; | 131 size_t first_line_and_file_header_len_; |
133 uint32 start_time_ms_; | 132 uint32_t start_time_ms_; |
134 uint32 ssrc_override_; | 133 uint32_t ssrc_override_; |
135 | 134 |
136 RTC_DISALLOW_COPY_AND_ASSIGN(RtpDumpReader); | 135 RTC_DISALLOW_COPY_AND_ASSIGN(RtpDumpReader); |
137 }; | 136 }; |
138 | 137 |
139 // RtpDumpLoopReader reads RTP dump packets from the input stream and rewinds | 138 // RtpDumpLoopReader reads RTP dump packets from the input stream and rewinds |
140 // the stream when it ends. RtpDumpLoopReader maintains the elapsed time, the | 139 // the stream when it ends. RtpDumpLoopReader maintains the elapsed time, the |
141 // RTP sequence number and the RTP timestamp properly. RtpDumpLoopReader can | 140 // RTP sequence number and the RTP timestamp properly. RtpDumpLoopReader can |
142 // handle both RTP dump and RTCP dump. We assume that the dump does not mix | 141 // handle both RTP dump and RTCP dump. We assume that the dump does not mix |
143 // RTP packets and RTCP packets. | 142 // RTP packets and RTCP packets. |
144 class RtpDumpLoopReader : public RtpDumpReader { | 143 class RtpDumpLoopReader : public RtpDumpReader { |
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157 | 156 |
158 // During the second and later loops, update the elapsed time of the dump | 157 // During the second and later loops, update the elapsed time of the dump |
159 // packet. If the dumped packet is a RTP packet, update its RTP sequence | 158 // packet. If the dumped packet is a RTP packet, update its RTP sequence |
160 // number and timestamp as well. | 159 // number and timestamp as well. |
161 void UpdateDumpPacket(RtpDumpPacket* packet); | 160 void UpdateDumpPacket(RtpDumpPacket* packet); |
162 | 161 |
163 int loop_count_; | 162 int loop_count_; |
164 // How much to increase the elapsed time, RTP sequence number, RTP timestampe | 163 // How much to increase the elapsed time, RTP sequence number, RTP timestampe |
165 // for each loop. They are calcualted with the variables below during the | 164 // for each loop. They are calcualted with the variables below during the |
166 // first loop. | 165 // first loop. |
167 uint32 elapsed_time_increases_; | 166 uint32_t elapsed_time_increases_; |
168 int rtp_seq_num_increase_; | 167 int rtp_seq_num_increase_; |
169 uint32 rtp_timestamp_increase_; | 168 uint32_t rtp_timestamp_increase_; |
170 // How many RTP packets and how many payload frames in the input stream. RTP | 169 // How many RTP packets and how many payload frames in the input stream. RTP |
171 // packets belong to the same frame have the same RTP timestamp, different | 170 // packets belong to the same frame have the same RTP timestamp, different |
172 // dump timestamp, and different RTP sequence number. | 171 // dump timestamp, and different RTP sequence number. |
173 uint32 packet_count_; | 172 uint32_t packet_count_; |
174 uint32 frame_count_; | 173 uint32_t frame_count_; |
175 // The elapsed time, RTP sequence number, and RTP timestamp of the first and | 174 // The elapsed time, RTP sequence number, and RTP timestamp of the first and |
176 // the previous dump packets in the input stream. | 175 // the previous dump packets in the input stream. |
177 uint32 first_elapsed_time_; | 176 uint32_t first_elapsed_time_; |
178 int first_rtp_seq_num_; | 177 int first_rtp_seq_num_; |
179 uint32 first_rtp_timestamp_; | 178 uint32_t first_rtp_timestamp_; |
180 uint32 prev_elapsed_time_; | 179 uint32_t prev_elapsed_time_; |
181 int prev_rtp_seq_num_; | 180 int prev_rtp_seq_num_; |
182 uint32 prev_rtp_timestamp_; | 181 uint32_t prev_rtp_timestamp_; |
183 | 182 |
184 RTC_DISALLOW_COPY_AND_ASSIGN(RtpDumpLoopReader); | 183 RTC_DISALLOW_COPY_AND_ASSIGN(RtpDumpLoopReader); |
185 }; | 184 }; |
186 | 185 |
187 class RtpDumpWriter { | 186 class RtpDumpWriter { |
188 public: | 187 public: |
189 explicit RtpDumpWriter(rtc::StreamInterface* stream); | 188 explicit RtpDumpWriter(rtc::StreamInterface* stream); |
190 | 189 |
191 // Filter to control what packets we actually record. | 190 // Filter to control what packets we actually record. |
192 void set_packet_filter(int filter); | 191 void set_packet_filter(int filter); |
193 // Write a RTP or RTCP packet. The parameters data points to the packet and | 192 // Write a RTP or RTCP packet. The parameters data points to the packet and |
194 // data_len is its length. | 193 // data_len is its length. |
195 rtc::StreamResult WriteRtpPacket(const void* data, size_t data_len) { | 194 rtc::StreamResult WriteRtpPacket(const void* data, size_t data_len) { |
196 return WritePacket(data, data_len, GetElapsedTime(), false); | 195 return WritePacket(data, data_len, GetElapsedTime(), false); |
197 } | 196 } |
198 rtc::StreamResult WriteRtcpPacket(const void* data, size_t data_len) { | 197 rtc::StreamResult WriteRtcpPacket(const void* data, size_t data_len) { |
199 return WritePacket(data, data_len, GetElapsedTime(), true); | 198 return WritePacket(data, data_len, GetElapsedTime(), true); |
200 } | 199 } |
201 rtc::StreamResult WritePacket(const RtpDumpPacket& packet) { | 200 rtc::StreamResult WritePacket(const RtpDumpPacket& packet) { |
202 return WritePacket(&packet.data[0], packet.data.size(), packet.elapsed_time, | 201 return WritePacket(&packet.data[0], packet.data.size(), packet.elapsed_time, |
203 packet.is_rtcp()); | 202 packet.is_rtcp()); |
204 } | 203 } |
205 uint32 GetElapsedTime() const; | 204 uint32_t GetElapsedTime() const; |
206 | 205 |
207 bool GetDumpSize(size_t* size) { | 206 bool GetDumpSize(size_t* size) { |
208 // Note that we use GetPosition(), rather than GetSize(), to avoid flush the | 207 // Note that we use GetPosition(), rather than GetSize(), to avoid flush the |
209 // stream per write. | 208 // stream per write. |
210 return stream_ && size && stream_->GetPosition(size); | 209 return stream_ && size && stream_->GetPosition(size); |
211 } | 210 } |
212 | 211 |
213 protected: | 212 protected: |
214 rtc::StreamResult WriteFileHeader(); | 213 rtc::StreamResult WriteFileHeader(); |
215 | 214 |
216 private: | 215 private: |
217 rtc::StreamResult WritePacket(const void* data, size_t data_len, | 216 rtc::StreamResult WritePacket(const void* data, |
218 uint32 elapsed, bool rtcp); | 217 size_t data_len, |
| 218 uint32_t elapsed, |
| 219 bool rtcp); |
219 size_t FilterPacket(const void* data, size_t data_len, bool rtcp); | 220 size_t FilterPacket(const void* data, size_t data_len, bool rtcp); |
220 rtc::StreamResult WriteToStream(const void* data, size_t data_len); | 221 rtc::StreamResult WriteToStream(const void* data, size_t data_len); |
221 | 222 |
222 rtc::StreamInterface* stream_; | 223 rtc::StreamInterface* stream_; |
223 int packet_filter_; | 224 int packet_filter_; |
224 bool file_header_written_; | 225 bool file_header_written_; |
225 uint32 start_time_ms_; // Time when the record starts. | 226 uint32_t start_time_ms_; // Time when the record starts. |
226 // If writing to the stream takes longer than this many ms, log a warning. | 227 // If writing to the stream takes longer than this many ms, log a warning. |
227 uint32 warn_slow_writes_delay_; | 228 uint32_t warn_slow_writes_delay_; |
228 RTC_DISALLOW_COPY_AND_ASSIGN(RtpDumpWriter); | 229 RTC_DISALLOW_COPY_AND_ASSIGN(RtpDumpWriter); |
229 }; | 230 }; |
230 | 231 |
231 } // namespace cricket | 232 } // namespace cricket |
232 | 233 |
233 #endif // TALK_MEDIA_BASE_RTPDUMP_H_ | 234 #endif // TALK_MEDIA_BASE_RTPDUMP_H_ |
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