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Side by Side Diff: media/cast/net/rtp_sender/rtp_packetizer/test/rtp_header_parser.cc

Issue 112133002: Cast:Moving netwrok sender related code to a designated folder (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 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 #include "media/cast/rtp_sender/rtp_packetizer/test/rtp_header_parser.h" 5 #include "media/cast/net/rtp_sender/rtp_packetizer/test/rtp_header_parser.h"
6 6
7 #include <cstddef> 7 #include <cstddef>
8 8
9 #include "net/base/big_endian.h" 9 #include "net/base/big_endian.h"
10 10
11 namespace media { 11 namespace media {
12 namespace cast { 12 namespace cast {
13 13
14 static const uint8 kCastKeyFrameBitMask = 0x80; 14 static const uint8 kCastKeyFrameBitMask = 0x80;
15 static const uint8 kCastReferenceFrameIdBitMask = 0x40; 15 static const uint8 kCastReferenceFrameIdBitMask = 0x40;
16 static const size_t kRtpCommonHeaderLength = 12; 16 static const size_t kRtpCommonHeaderLength = 12;
17 static const size_t kRtpCastHeaderLength = 12; 17 static const size_t kRtpCastHeaderLength = 12;
18 18
19 19
20 RtpHeaderParser::RtpHeaderParser(const uint8* rtp_data, 20 RtpHeaderParser::RtpHeaderParser(const uint8* rtp_data,
21 size_t rtp_data_length) 21 size_t rtp_data_length)
22 : rtp_data_begin_(rtp_data), 22 : rtp_data_begin_(rtp_data),
23 length_(rtp_data_length) {} 23 length_(rtp_data_length) {}
24 24
25 RtpHeaderParser::~RtpHeaderParser() {} 25 RtpHeaderParser::~RtpHeaderParser() {}
26 26
27 bool RtpHeaderParser::Parse(RtpCastHeader* parsed_packet) const { 27 bool RtpHeaderParser::Parse(RtpCastTestHeader* parsed_packet) const {
28 if (length_ < kRtpCommonHeaderLength + kRtpCastHeaderLength) 28 if (length_ < kRtpCommonHeaderLength + kRtpCastHeaderLength)
29 return false; 29 return false;
30 if (!ParseCommon(parsed_packet)) return false; 30 if (!ParseCommon(parsed_packet)) return false;
31 return ParseCast(parsed_packet); 31 return ParseCast(parsed_packet);
32 } 32 }
33 33
34 bool RtpHeaderParser::ParseCommon(RtpCastHeader* parsed_packet) const { 34 bool RtpHeaderParser::ParseCommon(RtpCastTestHeader* parsed_packet) const {
35 const uint8 version = rtp_data_begin_[0] >> 6; 35 const uint8 version = rtp_data_begin_[0] >> 6;
36 if (version != 2) { 36 if (version != 2) {
37 return false; 37 return false;
38 } 38 }
39 39
40 const uint8 num_csrcs = rtp_data_begin_[0] & 0x0f; 40 const uint8 num_csrcs = rtp_data_begin_[0] & 0x0f;
41 const bool marker = ((rtp_data_begin_[1] & 0x80) == 0) ? false : true; 41 const bool marker = ((rtp_data_begin_[1] & 0x80) == 0) ? false : true;
42 const uint8 payload_type = rtp_data_begin_[1] & 0x7f; 42 const uint8 payload_type = rtp_data_begin_[1] & 0x7f;
43 const uint16 sequence_number = (rtp_data_begin_[2] << 8) + 43 const uint16 sequence_number = (rtp_data_begin_[2] << 8) +
44 rtp_data_begin_[3]; 44 rtp_data_begin_[3];
45 45
46 const uint8* ptr = &rtp_data_begin_[4]; 46 const uint8* ptr = &rtp_data_begin_[4];
47 47
48 net::BigEndianReader big_endian_reader(ptr, 8); 48 net::BigEndianReader big_endian_reader(ptr, 8);
49 uint32 rtp_timestamp, ssrc; 49 uint32 rtp_timestamp, ssrc;
50 big_endian_reader.ReadU32(&rtp_timestamp); 50 big_endian_reader.ReadU32(&rtp_timestamp);
51 big_endian_reader.ReadU32(&ssrc); 51 big_endian_reader.ReadU32(&ssrc);
52 52
53 const uint8 csrc_octs = num_csrcs * 4; 53 const uint8 csrc_octs = num_csrcs * 4;
54 54
55 parsed_packet->webrtc.header.markerBit = marker; 55 parsed_packet->marker = marker;
56 parsed_packet->webrtc.header.payloadType = payload_type; 56 parsed_packet->payload_type = payload_type;
57 parsed_packet->webrtc.header.sequenceNumber = sequence_number; 57 parsed_packet->sequence_number = sequence_number;
58 parsed_packet->webrtc.header.timestamp = rtp_timestamp; 58 parsed_packet->rtp_timestamp = rtp_timestamp;
59 parsed_packet->webrtc.header.ssrc = ssrc; 59 parsed_packet->ssrc = ssrc;
60 parsed_packet->webrtc.header.numCSRCs = num_csrcs; 60 parsed_packet->num_csrcs = num_csrcs;
61 61
62 parsed_packet->webrtc.type.Audio.numEnergy = 62 parsed_packet->audio_num_energy = parsed_packet->num_csrcs;
63 parsed_packet->webrtc.header.numCSRCs;
64 63
65 parsed_packet->webrtc.header.headerLength = 12 + csrc_octs; 64 parsed_packet->header_length = 12 + csrc_octs;
66 return true; 65 return true;
67 } 66 }
68 67
69 bool RtpHeaderParser::ParseCast(RtpCastHeader* parsed_packet) const { 68 bool RtpHeaderParser::ParseCast(RtpCastTestHeader* parsed_packet) const {
70 const uint8* data = rtp_data_begin_ + kRtpCommonHeaderLength; 69 const uint8* data = rtp_data_begin_ + kRtpCommonHeaderLength;
71 parsed_packet->is_key_frame = (data[0] & kCastKeyFrameBitMask); 70 parsed_packet->is_key_frame = (data[0] & kCastKeyFrameBitMask);
72 parsed_packet->is_reference = (data[0] & kCastReferenceFrameIdBitMask); 71 parsed_packet->is_reference = (data[0] & kCastReferenceFrameIdBitMask);
73 parsed_packet->frame_id = frame_id_wrap_helper_.MapTo32bitsFrameId(data[1]); 72 parsed_packet->frame_id = frame_id_wrap_helper_.MapTo32bitsFrameId(data[1]);
74 73
75 net::BigEndianReader big_endian_reader(data + 2, 8); 74 net::BigEndianReader big_endian_reader(data + 2, 8);
76 big_endian_reader.ReadU16(&parsed_packet->packet_id); 75 big_endian_reader.ReadU16(&parsed_packet->packet_id);
77 big_endian_reader.ReadU16(&parsed_packet->max_packet_id); 76 big_endian_reader.ReadU16(&parsed_packet->max_packet_id);
78 77
79 if (parsed_packet->is_reference) { 78 if (parsed_packet->is_reference) {
80 parsed_packet->reference_frame_id = 79 parsed_packet->reference_frame_id =
81 reference_frame_id_wrap_helper_.MapTo32bitsFrameId(data[6]); 80 reference_frame_id_wrap_helper_.MapTo32bitsFrameId(data[6]);
82 } 81 }
83 return true; 82 return true;
84 } 83 }
85 84
86 } // namespace cast 85 } // namespace cast
87 } // namespace media 86 } // namespace media
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