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1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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34 size_t length() const; | 34 size_t length() const; |
35 | 35 |
36 private: | 36 private: |
37 std::unique_ptr<uint8_t[]> data_; | 37 std::unique_ptr<uint8_t[]> data_; |
38 size_t length_; | 38 size_t length_; |
39 size_t header_length_; | 39 size_t header_length_; |
40 }; | 40 }; |
41 | 41 |
42 class ProducerFec { | 42 class ProducerFec { |
43 public: | 43 public: |
44 explicit ProducerFec(ForwardErrorCorrection* fec); | 44 ProducerFec(); |
danilchap
2016/08/22 13:00:41
Isn't this reducing genearlization or ProducerFec
brandtr
2016/08/23 08:19:11
Correct, ProducerFec will only support Ulpfec. (In
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45 ~ProducerFec(); | 45 ~ProducerFec(); |
46 | 46 |
47 static std::unique_ptr<RedPacket> BuildRedPacket(const uint8_t* data_buffer, | 47 static std::unique_ptr<RedPacket> BuildRedPacket(const uint8_t* data_buffer, |
48 size_t payload_length, | 48 size_t payload_length, |
49 size_t rtp_header_length, | 49 size_t rtp_header_length, |
50 int red_payload_type); | 50 int red_payload_type); |
51 | 51 |
52 void SetFecParameters(const FecProtectionParams* params, | 52 void SetFecParameters(const FecProtectionParams* params, |
53 int num_first_partition); | 53 int num_first_partition); |
54 | 54 |
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70 // |min_num_media_packets_|. This condition tries to capture the effect | 70 // |min_num_media_packets_|. This condition tries to capture the effect |
71 // that, for the same amount of protection/overhead, longer codes | 71 // that, for the same amount of protection/overhead, longer codes |
72 // (e.g. (2k,2m) vs (k,m)) are generally more effective at recovering losses. | 72 // (e.g. (2k,2m) vs (k,m)) are generally more effective at recovering losses. |
73 bool MinimumMediaPacketsReached() const; | 73 bool MinimumMediaPacketsReached() const; |
74 | 74 |
75 // Returns true if there are generated FEC packets available. | 75 // Returns true if there are generated FEC packets available. |
76 bool FecAvailable() const; | 76 bool FecAvailable() const; |
77 | 77 |
78 size_t NumAvailableFecPackets() const; | 78 size_t NumAvailableFecPackets() const; |
79 | 79 |
80 size_t MaxPacketOverhead() const; | |
81 | |
80 // Returns generated FEC packets with RED headers added. | 82 // Returns generated FEC packets with RED headers added. |
81 std::vector<std::unique_ptr<RedPacket>> GetFecPacketsAsRed( | 83 std::vector<std::unique_ptr<RedPacket>> GetFecPacketsAsRed( |
82 int red_payload_type, | 84 int red_payload_type, |
83 int ulpfec_payload_type, | 85 int ulpfec_payload_type, |
84 uint16_t first_seq_num, | 86 uint16_t first_seq_num, |
85 size_t rtp_header_length); | 87 size_t rtp_header_length); |
86 | 88 |
87 private: | 89 private: |
88 void DeleteMediaPackets(); | 90 void DeleteMediaPackets(); |
89 int Overhead() const; | 91 int Overhead() const; |
90 ForwardErrorCorrection* fec_; | 92 ForwardErrorCorrection fec_; |
91 ForwardErrorCorrection::PacketList media_packets_; | 93 ForwardErrorCorrection::PacketList media_packets_; |
92 std::list<ForwardErrorCorrection::Packet*> generated_fec_packets_; | 94 std::list<ForwardErrorCorrection::Packet*> generated_fec_packets_; |
93 int num_protected_frames_; | 95 int num_protected_frames_; |
94 int num_important_packets_; | 96 int num_important_packets_; |
95 int min_num_media_packets_; | 97 int min_num_media_packets_; |
96 FecProtectionParams params_; | 98 FecProtectionParams params_; |
97 FecProtectionParams new_params_; | 99 FecProtectionParams new_params_; |
98 }; | 100 }; |
99 | 101 |
100 } // namespace webrtc | 102 } // namespace webrtc |
101 | 103 |
102 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_PRODUCER_FEC_H_ | 104 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_PRODUCER_FEC_H_ |
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