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1 /* | 1 /* |
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2013 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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47 // supplied in |prev_mode|. If there is a DTMF event to play, |play_dtmf| | 47 // supplied in |prev_mode|. If there is a DTMF event to play, |play_dtmf| |
48 // should be set to true. The output variable |reset_decoder| will be set to | 48 // should be set to true. The output variable |reset_decoder| will be set to |
49 // true if a reset is required; otherwise it is left unchanged (i.e., it can | 49 // true if a reset is required; otherwise it is left unchanged (i.e., it can |
50 // remain true if it was true before the call). | 50 // remain true if it was true before the call). |
51 Operations GetDecisionSpecialized(const SyncBuffer& sync_buffer, | 51 Operations GetDecisionSpecialized(const SyncBuffer& sync_buffer, |
52 const Expand& expand, | 52 const Expand& expand, |
53 size_t decoder_frame_length, | 53 size_t decoder_frame_length, |
54 const RTPHeader* packet_header, | 54 const RTPHeader* packet_header, |
55 Modes prev_mode, | 55 Modes prev_mode, |
56 bool play_dtmf, | 56 bool play_dtmf, |
57 bool* reset_decoder) override; | 57 bool* reset_decoder, |
| 58 size_t generated_noise_samples) override; |
58 | 59 |
59 // Returns the operation to do given that the expected packet is not | 60 // Returns the operation to do given that the expected packet is not |
60 // available, but a packet further into the future is at hand. | 61 // available, but a packet further into the future is at hand. |
61 virtual Operations FuturePacketAvailable( | 62 virtual Operations FuturePacketAvailable( |
62 const SyncBuffer& sync_buffer, | 63 const SyncBuffer& sync_buffer, |
63 const Expand& expand, | 64 const Expand& expand, |
64 size_t decoder_frame_length, | 65 size_t decoder_frame_length, |
65 Modes prev_mode, | 66 Modes prev_mode, |
66 uint32_t target_timestamp, | 67 uint32_t target_timestamp, |
67 uint32_t available_timestamp, | 68 uint32_t available_timestamp, |
68 bool play_dtmf); | 69 bool play_dtmf, |
| 70 size_t generated_noise_samples); |
69 | 71 |
70 // Returns the operation to do given that the expected packet is available. | 72 // Returns the operation to do given that the expected packet is available. |
71 virtual Operations ExpectedPacketAvailable(Modes prev_mode, bool play_dtmf); | 73 virtual Operations ExpectedPacketAvailable(Modes prev_mode, bool play_dtmf); |
72 | 74 |
73 // Returns the operation given that no packets are available (except maybe | 75 // Returns the operation given that no packets are available (except maybe |
74 // a DTMF event, flagged by setting |play_dtmf| true). | 76 // a DTMF event, flagged by setting |play_dtmf| true). |
75 virtual Operations NoPacket(bool play_dtmf); | 77 virtual Operations NoPacket(bool play_dtmf); |
76 | 78 |
77 private: | 79 private: |
78 // Returns the operation given that the next available packet is a comfort | 80 // Returns the operation given that the next available packet is a comfort |
79 // noise payload (RFC 3389 only, not codec-internal). | 81 // noise payload (RFC 3389 only, not codec-internal). |
80 Operations CngOperation(Modes prev_mode, uint32_t target_timestamp, | 82 Operations CngOperation(Modes prev_mode, |
81 uint32_t available_timestamp); | 83 uint32_t target_timestamp, |
| 84 uint32_t available_timestamp, |
| 85 size_t generated_noise_samples); |
82 | 86 |
83 // Checks if enough time has elapsed since the last successful timescale | 87 // Checks if enough time has elapsed since the last successful timescale |
84 // operation was done (i.e., accelerate or preemptive expand). | 88 // operation was done (i.e., accelerate or preemptive expand). |
85 bool TimescaleAllowed() const { return timescale_hold_off_ == 0; } | 89 bool TimescaleAllowed() const { return timescale_hold_off_ == 0; } |
86 | 90 |
87 // Checks if the current (filtered) buffer level is under the target level. | 91 // Checks if the current (filtered) buffer level is under the target level. |
88 bool UnderTargetLevel() const; | 92 bool UnderTargetLevel() const; |
89 | 93 |
90 // Checks if |timestamp_leap| is so long into the future that a reset due | 94 // Checks if |timestamp_leap| is so long into the future that a reset due |
91 // to exceeding kReinitAfterExpands will be done. | 95 // to exceeding kReinitAfterExpands will be done. |
92 bool ReinitAfterExpands(uint32_t timestamp_leap) const; | 96 bool ReinitAfterExpands(uint32_t timestamp_leap) const; |
93 | 97 |
94 // Checks if we still have not done enough expands to cover the distance from | 98 // Checks if we still have not done enough expands to cover the distance from |
95 // the last decoded packet to the next available packet, the distance beeing | 99 // the last decoded packet to the next available packet, the distance beeing |
96 // conveyed in |timestamp_leap|. | 100 // conveyed in |timestamp_leap|. |
97 bool PacketTooEarly(uint32_t timestamp_leap) const; | 101 bool PacketTooEarly(uint32_t timestamp_leap) const; |
98 | 102 |
99 // Checks if num_consecutive_expands_ >= kMaxWaitForPacket. | 103 // Checks if num_consecutive_expands_ >= kMaxWaitForPacket. |
100 bool MaxWaitForPacket() const; | 104 bool MaxWaitForPacket() const; |
101 | 105 |
102 RTC_DISALLOW_COPY_AND_ASSIGN(DecisionLogicNormal); | 106 RTC_DISALLOW_COPY_AND_ASSIGN(DecisionLogicNormal); |
103 }; | 107 }; |
104 | 108 |
105 } // namespace webrtc | 109 } // namespace webrtc |
106 #endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_DECISION_LOGIC_NORMAL_H_ | 110 #endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_DECISION_LOGIC_NORMAL_H_ |
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