Ruslan Burakov | 493a650 | 2019-02-27 15:32:48 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2019 The WebRTC project authors. All Rights Reserved. |
| 3 | * |
| 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 |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #ifndef MEDIA_BASE_DELAYABLE_H_ |
| 12 | #define MEDIA_BASE_DELAYABLE_H_ |
| 13 | |
| 14 | #include <stdint.h> |
| 15 | |
| 16 | #include "absl/types/optional.h" |
| 17 | |
| 18 | namespace cricket { |
| 19 | |
| 20 | // Delayable is used by user code through ApplyConstraints algorithm. Its |
| 21 | // methods must take precendence over similar functional in |syncable.h|. |
| 22 | class Delayable { |
| 23 | public: |
| 24 | virtual ~Delayable() {} |
| 25 | // Set base minimum delay of the receive stream with specified ssrc. |
| 26 | // Base minimum delay sets lower bound on minimum delay value which |
| 27 | // determines minimum delay until audio playout. |
| 28 | // Returns false if there is no stream with given ssrc. |
| 29 | virtual bool SetBaseMinimumPlayoutDelayMs(uint32_t ssrc, int delay_ms) = 0; |
| 30 | |
| 31 | // Returns current value of base minimum delay in milliseconds. |
| 32 | virtual absl::optional<int> GetBaseMinimumPlayoutDelayMs( |
| 33 | uint32_t ssrc) const = 0; |
| 34 | }; |
| 35 | |
| 36 | } // namespace cricket |
| 37 | |
| 38 | #endif // MEDIA_BASE_DELAYABLE_H_ |