b507daf411
This makes the delay manager interface significantly simpler and easier to expose. Bug: None Change-Id: Ie3d37c3b869eb17ca421a76e9d1af8f0a1a36ee5 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/364781 Commit-Queue: Jakob Ivarsson <jakobi@webrtc.org> Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43186}
71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
/*
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* Copyright (c) 2024 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_AUDIO_CODING_NETEQ_DELAY_CONSTRAINTS_H_
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#define MODULES_AUDIO_CODING_NETEQ_DELAY_CONSTRAINTS_H_
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namespace webrtc {
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class DelayConstraints {
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public:
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DelayConstraints(int max_packets_in_buffer, int base_minimum_delay_ms);
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// Returns the delay (in ms) clamped to the range of valid delays.
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int Clamp(int delay_ms) const;
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// Notifies the DelayManager of how much audio data is carried in each packet.
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bool SetPacketAudioLength(int length_ms);
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// Accessors and mutators.
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// Assuming `delay` is in valid range.
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bool SetMinimumDelay(int delay_ms);
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bool SetMaximumDelay(int delay_ms);
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bool SetBaseMinimumDelay(int delay_ms);
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int GetBaseMinimumDelay() const;
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// These accessors are only intended for testing purposes.
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int effective_minimum_delay_ms_for_test() const {
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return effective_minimum_delay_ms_;
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}
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private:
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// Provides value which minimum delay can't exceed based on current buffer
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// size and given `maximum_delay_ms_`. Lower bound is a constant 0.
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int MinimumDelayUpperBound() const;
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// Updates `effective_minimum_delay_ms_` delay based on current
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// `minimum_delay_ms_`, `base_minimum_delay_ms_`, `maximum_delay_ms_` and
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// buffer size.
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void UpdateEffectiveMinimumDelay();
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// Makes sure that `delay_ms` is less than maximum delay, if any maximum
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// is set. Also, if possible check `delay_ms` to be less than 75% of
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// `max_packets_in_buffer_`.
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bool IsValidMinimumDelay(int delay_ms) const;
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// Checks that `delay_ms` is in the range of valid base minimum delays.
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bool IsValidBaseMinimumDelay(int delay_ms) const;
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// TODO(jakobi): set maximum buffer delay instead of number of packets.
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const int max_packets_in_buffer_;
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int base_minimum_delay_ms_;
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int effective_minimum_delay_ms_; // Used as lower bound for target delay.
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int minimum_delay_ms_; // Externally set minimum delay.
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int maximum_delay_ms_; // Externally set maximum delay. No maximum
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// delay is enforced if <= 0.
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int packet_len_ms_ = 0;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_CODING_NETEQ_DELAY_CONSTRAINTS_H_
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