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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_receiver/rtp_parser/test/rtp_packet_builder.h" | 5 #include "media/cast/rtp_receiver/rtp_parser/test/rtp_packet_builder.h" |
| 6 | 6 |
| 7 #include "base/big_endian.h" |
| 7 #include "base/logging.h" | 8 #include "base/logging.h" |
| 8 #include "net/base/big_endian.h" | |
| 9 | 9 |
| 10 namespace media { | 10 namespace media { |
| 11 namespace cast { | 11 namespace cast { |
| 12 | 12 |
| 13 const uint32 kCastRtpHeaderLength = 7; | 13 const uint32 kCastRtpHeaderLength = 7; |
| 14 const uint32 kGenericRtpHeaderLength = 12; | 14 const uint32 kGenericRtpHeaderLength = 12; |
| 15 static const uint8 kRtpMarkerBitMask = 0x80; | 15 static const uint8 kRtpMarkerBitMask = 0x80; |
| 16 | 16 |
| 17 RtpPacketBuilder::RtpPacketBuilder() | 17 RtpPacketBuilder::RtpPacketBuilder() |
| 18 : is_key_(false), | 18 : is_key_(false), |
| (...skipping 44 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 63 BuildCommonHeader(data, data_length); | 63 BuildCommonHeader(data, data_length); |
| 64 BuildCastHeader(data + kGenericRtpHeaderLength, | 64 BuildCastHeader(data + kGenericRtpHeaderLength, |
| 65 data_length - kGenericRtpHeaderLength); | 65 data_length - kGenericRtpHeaderLength); |
| 66 } | 66 } |
| 67 | 67 |
| 68 void RtpPacketBuilder::BuildCastHeader(uint8* data, uint32 data_length) { | 68 void RtpPacketBuilder::BuildCastHeader(uint8* data, uint32 data_length) { |
| 69 // Build header. | 69 // Build header. |
| 70 DCHECK_LE(kCastRtpHeaderLength, data_length); | 70 DCHECK_LE(kCastRtpHeaderLength, data_length); |
| 71 // Set the first 7 bytes to 0. | 71 // Set the first 7 bytes to 0. |
| 72 memset(data, 0, kCastRtpHeaderLength); | 72 memset(data, 0, kCastRtpHeaderLength); |
| 73 net::BigEndianWriter big_endian_writer(data, 56); | 73 base::BigEndianWriter big_endian_writer(reinterpret_cast<char*>(data), 56); |
| 74 big_endian_writer.WriteU8((is_key_ ? 0x80 : 0) | | 74 big_endian_writer.WriteU8((is_key_ ? 0x80 : 0) | |
| 75 (is_reference_set_ ? 0x40 : 0)); | 75 (is_reference_set_ ? 0x40 : 0)); |
| 76 big_endian_writer.WriteU8(frame_id_); | 76 big_endian_writer.WriteU8(frame_id_); |
| 77 big_endian_writer.WriteU16(packet_id_); | 77 big_endian_writer.WriteU16(packet_id_); |
| 78 big_endian_writer.WriteU16(max_packet_id_); | 78 big_endian_writer.WriteU16(max_packet_id_); |
| 79 if (is_reference_set_) { | 79 if (is_reference_set_) { |
| 80 big_endian_writer.WriteU8(reference_frame_id_); | 80 big_endian_writer.WriteU8(reference_frame_id_); |
| 81 } | 81 } |
| 82 } | 82 } |
| 83 | 83 |
| 84 void RtpPacketBuilder::BuildCommonHeader(uint8* data, uint32 data_length) { | 84 void RtpPacketBuilder::BuildCommonHeader(uint8* data, uint32 data_length) { |
| 85 DCHECK_LE(kGenericRtpHeaderLength, data_length); | 85 DCHECK_LE(kGenericRtpHeaderLength, data_length); |
| 86 net::BigEndianWriter big_endian_writer(data, 96); | 86 base::BigEndianWriter big_endian_writer(reinterpret_cast<char*>(data), 96); |
| 87 big_endian_writer.WriteU8(0x80); | 87 big_endian_writer.WriteU8(0x80); |
| 88 big_endian_writer.WriteU8(payload_type_ | (marker_ ? kRtpMarkerBitMask : 0)); | 88 big_endian_writer.WriteU8(payload_type_ | (marker_ ? kRtpMarkerBitMask : 0)); |
| 89 big_endian_writer.WriteU16(sequence_number_); | 89 big_endian_writer.WriteU16(sequence_number_); |
| 90 big_endian_writer.WriteU32(timestamp_); | 90 big_endian_writer.WriteU32(timestamp_); |
| 91 big_endian_writer.WriteU32(ssrc_); | 91 big_endian_writer.WriteU32(ssrc_); |
| 92 } | 92 } |
| 93 | 93 |
| 94 } // namespace cast | 94 } // namespace cast |
| 95 } // namespace media | 95 } // namespace media |
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