54 lines
2.1 KiB
C++
54 lines
2.1 KiB
C++
// Copyright 2018 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CEF_LIBCEF_BROWSER_AUDIO_LOOPBACK_STREAM_CREATOR_H_
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#define CEF_LIBCEF_BROWSER_AUDIO_LOOPBACK_STREAM_CREATOR_H_
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#include "base/callback.h"
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#include "content/browser/media/forwarding_audio_stream_factory.h"
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#include "content/common/content_export.h"
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#include "media/mojo/mojom/audio_data_pipe.mojom.h"
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#include "media/mojo/mojom/audio_input_stream.mojom.h"
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#include "mojo/public/cpp/bindings/pending_remote.h"
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namespace media {
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class AudioParameters;
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}
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// This class handles creating a loopback stream that either captures audio from
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// a WebContents or the system-wide loopback through the Audio Service.
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// This class is operated on the UI thread.
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// Based on InProcessAudioLoopbackStreamCreator which was deleted in
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// https://crrev.com/a5af2468cf.
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class CefAudioLoopbackStreamCreator final {
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public:
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CefAudioLoopbackStreamCreator();
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CefAudioLoopbackStreamCreator(const CefAudioLoopbackStreamCreator&) = delete;
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CefAudioLoopbackStreamCreator& operator=(
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const CefAudioLoopbackStreamCreator&) = delete;
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~CefAudioLoopbackStreamCreator();
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// The callback that is called when the requested stream is created.
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using StreamCreatedCallback = base::RepeatingCallback<void(
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mojo::PendingRemote<media::mojom::AudioInputStream> stream,
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mojo::PendingReceiver<media::mojom::AudioInputStreamClient>
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client_receiver,
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media::mojom::ReadOnlyAudioDataPipePtr data_pipe)>;
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// Creates a loopback stream that captures the audio from |loopback_source|,
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// or the default system playback if |loopback_source| is null. Local output
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// of the source/system audio is muted during capturing.
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void CreateLoopbackStream(content::WebContents* loopback_source,
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const media::AudioParameters& params,
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uint32_t total_segments,
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const StreamCreatedCallback& callback);
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private:
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content::ForwardingAudioStreamFactory factory_;
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};
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#endif // CEF_LIBCEF_BROWSER_AUDIO_LOOPBACK_STREAM_CREATOR_H_
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