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https://github.com/LadybirdBrowser/ladybird
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39d865b403
This allows us to avoid returning a PlaybackStream in cases where the async initialization fails. This is a step towards more graceful fallbacks when audio fails in AudioMixingSink.
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
/*
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* Copyright (c) 2025, Ryszard Goc <ryszardgoc@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include "PlaybackStream.h"
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#include <AK/Error.h>
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#include <AK/NonnullRefPtr.h>
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namespace Audio {
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class PlaybackStreamWASAPI final : public PlaybackStream {
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public:
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static NonnullRefPtr<CreatePromise> create(OutputState initial_output_state, u32 target_latency_ms, AudioDataRequestCallback&&);
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virtual SampleSpecification sample_specification() const override;
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// The overrun callback must be realtime safe. The buffer size might be small.
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virtual void set_underrun_callback(Function<void()>) override;
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virtual NonnullRefPtr<Core::ThreadedPromise<AK::Duration>> resume() override;
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virtual NonnullRefPtr<Core::ThreadedPromise<void>> drain_buffer_and_suspend() override;
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virtual NonnullRefPtr<Core::ThreadedPromise<void>> discard_buffer_and_suspend() override;
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virtual AK::Duration total_time_played() const override;
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virtual NonnullRefPtr<Core::ThreadedPromise<void>> set_volume(double) override;
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private:
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struct AudioState;
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explicit PlaybackStreamWASAPI(NonnullRefPtr<AudioState>);
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static ALWAYS_INLINE AK::Duration total_time_played_with_com_initialized(AudioState& state);
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~PlaybackStreamWASAPI();
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NonnullRefPtr<AudioState> m_state;
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};
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}
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