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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_CAST_NET_RTP_RTP_PARSER_H_ | 5 #ifndef MEDIA_CAST_NET_RTP_RTP_PARSER_H_ |
6 #define MEDIA_CAST_NET_RTP_RTP_PARSER_H_ | 6 #define MEDIA_CAST_NET_RTP_RTP_PARSER_H_ |
7 | 7 |
8 #include "media/cast/net/cast_transport_defines.h" | 8 #include "media/cast/net/cast_transport_defines.h" |
9 #include "media/cast/net/rtp/rtp_defines.h" | 9 #include "media/cast/net/rtp/rtp_defines.h" |
10 | 10 |
11 namespace media { | 11 namespace media { |
12 namespace cast { | 12 namespace cast { |
13 | 13 |
14 // TODO(miu): RtpParser and RtpPacketizer should be consolidated into a single | 14 // TODO(miu): RtpParser and RtpPacketizer should be consolidated into a single |
15 // module that handles all RTP/Cast packet serialization and deserialization | 15 // module that handles all RTP/Cast packet serialization and deserialization |
16 // throughout the media/cast library. | 16 // throughout the media/cast library. |
17 class RtpParser { | 17 class RtpParser { |
18 public: | 18 public: |
19 RtpParser(uint32 expected_sender_ssrc, uint8 expected_payload_type); | 19 RtpParser(uint32_t expected_sender_ssrc, uint8_t expected_payload_type); |
20 | 20 |
21 virtual ~RtpParser(); | 21 virtual ~RtpParser(); |
22 | 22 |
23 // Parses the |packet|, expecting an RTP header along with a Cast header at | 23 // Parses the |packet|, expecting an RTP header along with a Cast header at |
24 // the beginning of the the RTP payload. This method populates the structure | 24 // the beginning of the the RTP payload. This method populates the structure |
25 // pointed to by |rtp_header| and sets the |payload_data| pointer and | 25 // pointed to by |rtp_header| and sets the |payload_data| pointer and |
26 // |payload_size| to the memory region within |packet| containing the Cast | 26 // |payload_size| to the memory region within |packet| containing the Cast |
27 // payload data. Returns false if the data appears to be invalid, is not from | 27 // payload data. Returns false if the data appears to be invalid, is not from |
28 // the expected sender (as identified by the SSRC field), or is not the | 28 // the expected sender (as identified by the SSRC field), or is not the |
29 // expected payload type. | 29 // expected payload type. |
30 bool ParsePacket(const uint8* packet, | 30 bool ParsePacket(const uint8_t* packet, |
31 size_t length, | 31 size_t length, |
32 RtpCastHeader* rtp_header, | 32 RtpCastHeader* rtp_header, |
33 const uint8** payload_data, | 33 const uint8_t** payload_data, |
34 size_t* payload_size); | 34 size_t* payload_size); |
35 | 35 |
36 static bool ParseSsrc(const uint8* packet, size_t length, uint32* ssrc); | 36 static bool ParseSsrc(const uint8_t* packet, size_t length, uint32_t* ssrc); |
37 | 37 |
38 private: | 38 private: |
39 const uint32 expected_sender_ssrc_; | 39 const uint32_t expected_sender_ssrc_; |
40 const uint8 expected_payload_type_; | 40 const uint8_t expected_payload_type_; |
41 FrameIdWrapHelper frame_id_wrap_helper_; | 41 FrameIdWrapHelper frame_id_wrap_helper_; |
42 | 42 |
43 DISALLOW_COPY_AND_ASSIGN(RtpParser); | 43 DISALLOW_COPY_AND_ASSIGN(RtpParser); |
44 }; | 44 }; |
45 | 45 |
46 } // namespace cast | 46 } // namespace cast |
47 } // namespace media | 47 } // namespace media |
48 | 48 |
49 #endif // MEDIA_CAST_NET_RTP_RTP_PARSER_H_ | 49 #endif // MEDIA_CAST_NET_RTP_RTP_PARSER_H_ |
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