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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 #ifndef MEDIA_CAST_TRANSPORT_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_ | 5 #ifndef MEDIA_CAST_TRANSPORT_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_ |
6 #define MEDIA_CAST_TRANSPORT_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_ | 6 #define MEDIA_CAST_TRANSPORT_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_ |
7 | 7 |
8 #include <cmath> | 8 #include <cmath> |
9 #include <list> | 9 #include <list> |
10 #include <map> | 10 #include <map> |
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48 // This object is only called from the main cast thread. | 48 // This object is only called from the main cast thread. |
49 // This class break encoded audio and video frames into packets and add an RTP | 49 // This class break encoded audio and video frames into packets and add an RTP |
50 // header to each packet. | 50 // header to each packet. |
51 class RtpPacketizer { | 51 class RtpPacketizer { |
52 public: | 52 public: |
53 RtpPacketizer(PacedSender* const transport, | 53 RtpPacketizer(PacedSender* const transport, |
54 PacketStorage* packet_storage, | 54 PacketStorage* packet_storage, |
55 RtpPacketizerConfig rtp_packetizer_config); | 55 RtpPacketizerConfig rtp_packetizer_config); |
56 ~RtpPacketizer(); | 56 ~RtpPacketizer(); |
57 | 57 |
58 // The video_frame objects ownership is handled by the main cast thread. | 58 void SendFrameAsPackets(const EncodedFrame& frame); |
59 // |capture_time| is only used for scheduling of outgoing packets. | |
60 void IncomingEncodedVideoFrame(const EncodedVideoFrame* video_frame, | |
61 const base::TimeTicks& capture_time); | |
62 | |
63 // The audio_frame objects ownership is handled by the main cast thread. | |
64 // |recorded_time| is only used for scheduling of outgoing packets. | |
65 void IncomingEncodedAudioFrame(const EncodedAudioFrame* audio_frame, | |
66 const base::TimeTicks& recorded_time); | |
67 | 59 |
68 // Return the next sequence number, and increment by one. Enables unique | 60 // Return the next sequence number, and increment by one. Enables unique |
69 // incremental sequence numbers for every packet (including retransmissions). | 61 // incremental sequence numbers for every packet (including retransmissions). |
70 uint16 NextSequenceNumber(); | 62 uint16 NextSequenceNumber(); |
71 | 63 |
72 size_t send_packet_count() const { return send_packet_count_; } | 64 size_t send_packet_count() const { return send_packet_count_; } |
73 size_t send_octet_count() const { return send_octet_count_; } | 65 size_t send_octet_count() const { return send_octet_count_; } |
74 | 66 |
75 private: | 67 private: |
76 void Cast(bool is_key, | |
77 uint32 frame_id, | |
78 uint32 reference_frame_id, | |
79 uint32 timestamp, | |
80 const std::string& data, | |
81 const base::TimeTicks& capture_time); | |
82 | |
83 void BuildCommonRTPheader(Packet* packet, bool marker_bit, uint32 time_stamp); | 68 void BuildCommonRTPheader(Packet* packet, bool marker_bit, uint32 time_stamp); |
84 | 69 |
85 RtpPacketizerConfig config_; | 70 RtpPacketizerConfig config_; |
86 PacedSender* const transport_; // Not owned by this class. | 71 PacedSender* const transport_; // Not owned by this class. |
87 PacketStorage* packet_storage_; | 72 PacketStorage* packet_storage_; |
88 | 73 |
89 uint16 sequence_number_; | 74 uint16 sequence_number_; |
90 uint32 rtp_timestamp_; | 75 uint32 rtp_timestamp_; |
91 uint16 packet_id_; | 76 uint16 packet_id_; |
92 | 77 |
93 size_t send_packet_count_; | 78 size_t send_packet_count_; |
94 size_t send_octet_count_; | 79 size_t send_octet_count_; |
95 }; | 80 }; |
96 | 81 |
97 } // namespace transport | 82 } // namespace transport |
98 } // namespace cast | 83 } // namespace cast |
99 } // namespace media | 84 } // namespace media |
100 | 85 |
101 #endif // MEDIA_CAST_TRANSPORT_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_ | 86 #endif // MEDIA_CAST_TRANSPORT_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_ |
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