Index: content/renderer/media/local_media_stream_audio_source.h |
diff --git a/content/renderer/media/local_media_stream_audio_source.h b/content/renderer/media/local_media_stream_audio_source.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..1c4847c98ed27d162d0752683b6fc485ab7c7412 |
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+++ b/content/renderer/media/local_media_stream_audio_source.h |
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+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef CONTENT_RENDERER_MEDIA_LOCAL_MEDIA_STREAM_AUDIO_SOURCE_H_ |
+#define CONTENT_RENDERER_MEDIA_LOCAL_MEDIA_STREAM_AUDIO_SOURCE_H_ |
+ |
+#include "content/common/media/media_stream_options.h" |
+#include "content/renderer/media/media_stream_audio_source.h" |
+#include "media/base/audio_capturer_source.h" |
+#include "media/audio/audio_input_device.h" |
+ |
+namespace content { |
+ |
+// Represents a local source of audio data generated by an AudioInputDevice. |
+// Uses content::AudioDeviceFactory to auto-create the AudioInputDevice, using |
+// the parameters and session ID found in StreamDeviceInfo, just before the |
+// first track is connected. Audio data is transported directly to the tracks |
+// (i.e., there is no audio processing). |
+class CONTENT_EXPORT LocalMediaStreamAudioSource |
+ : NON_EXPORTED_BASE(public MediaStreamAudioSource), |
+ NON_EXPORTED_BASE(public media::AudioCapturerSource::CaptureCallback) { |
+ public: |
+ // |consumer_render_frame_id| references the RenderFrame that will consume the |
+ // audio data. Audio parameters and (optionally) a pre-existing audio session |
+ // ID are read from |device_info|. |
+ LocalMediaStreamAudioSource(int consumer_render_frame_id, |
+ const StreamDeviceInfo& device_info); |
+ |
+ ~LocalMediaStreamAudioSource() final; |
+ |
+ private: |
+ // MediaStreamAudioSource implementation. |
+ void DoStopSource() final; |
+ bool EnsureSourceIsStarted() final; |
+ |
+ // media::AudioCapturerSource::CaptureCallback implementation. |
+ void Capture(const media::AudioBus* audio_bus, |
+ int audio_delay_milliseconds, |
+ double volume, |
+ bool key_pressed) final; |
+ void OnCaptureError(const std::string& message) final; |
+ |
+ // The RenderFrame that will consume the audio data. Used when creating |
+ // AudioInputDevices via the AudioDeviceFactory. |
+ const int consumer_render_frame_id_; |
+ |
+ // The StreamDeviceInfo session ID. Used when creating AudioInputDevices via |
+ // the AudioDeviceFactory. |
+ const int session_id_; |
+ |
+ // The device created by the AudioDeviceFactory in EnsureSourceIsStarted(). |
+ scoped_refptr<media::AudioInputDevice> input_device_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(LocalMediaStreamAudioSource); |
+}; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_RENDERER_MEDIA_LOCAL_MEDIA_STREAM_AUDIO_SOURCE_H_ |