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60 lines
2 KiB
C++
60 lines
2 KiB
C++
/*
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* Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
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* Copyright (c) 2025, Ben Eidson <b.e.eidson@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 <LibWeb/Bindings/OfflineAudioContextPrototype.h>
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#include <LibWeb/HighResolutionTime/DOMHighResTimeStamp.h>
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#include <LibWeb/WebAudio/BaseAudioContext.h>
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#include <LibWeb/WebIDL/Types.h>
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namespace Web::WebAudio {
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// https://webaudio.github.io/web-audio-api/#OfflineAudioContextOptions
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struct OfflineAudioContextOptions {
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WebIDL::UnsignedLong number_of_channels { 1 };
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WebIDL::UnsignedLong length {};
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float sample_rate {};
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};
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// https://webaudio.github.io/web-audio-api/#OfflineAudioContext
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class OfflineAudioContext final : public BaseAudioContext {
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WEB_PLATFORM_OBJECT(OfflineAudioContext, BaseAudioContext);
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GC_DECLARE_ALLOCATOR(OfflineAudioContext);
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public:
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static WebIDL::ExceptionOr<GC::Ref<OfflineAudioContext>> construct_impl(JS::Realm&, OfflineAudioContextOptions const&);
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static WebIDL::ExceptionOr<GC::Ref<OfflineAudioContext>> construct_impl(JS::Realm&,
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WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate);
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virtual ~OfflineAudioContext() override;
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WebIDL::ExceptionOr<GC::Ref<WebIDL::Promise>> start_rendering();
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WebIDL::ExceptionOr<GC::Ref<WebIDL::Promise>> resume();
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WebIDL::ExceptionOr<GC::Ref<WebIDL::Promise>> suspend(double suspend_time);
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WebIDL::UnsignedLong length() const;
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GC::Ptr<WebIDL::CallbackType> oncomplete();
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void set_oncomplete(GC::Ptr<WebIDL::CallbackType>);
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private:
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OfflineAudioContext(JS::Realm&, WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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WebIDL::UnsignedLong m_length {};
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WebIDL::UnsignedLong m_number_of_channels {};
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bool m_rendering_started { false };
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GC::Ptr<AudioBuffer> m_rendered_buffer;
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void begin_offline_rendering(GC::Ref<WebIDL::Promise> promise);
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};
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}
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