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Unified Diff: extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder.h

Issue 1899943005: [chrome.displaySource] Add a base class for audio encoders. (Closed) Base URL: https://chromium.googlesource.com/chromium/src@master
Patch Set: Proper access for error constant Created 4 years, 8 months ago
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Index: extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder.h
diff --git a/extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder.h b/extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder.h
new file mode 100644
index 0000000000000000000000000000000000000000..2c0f6dd537382cb6a11761d1e16bfc18ecc3dbfe
--- /dev/null
+++ b/extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder.h
@@ -0,0 +1,39 @@
+// 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 EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_AUDIO_ENCODER_H_
+#define EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_AUDIO_ENCODER_H_
+
+#include "content/public/renderer/media_stream_audio_sink.h"
+#include "extensions/renderer/api/display_source/wifi_display/wifi_display_media_encoder.h"
+#include "third_party/wds/src/libwds/public/audio_codec.h"
+
+namespace extensions {
+
+// This interface is a base class for audio used by the Wi-Fi Display media
+// pipeline.
+// Threading: the client code should belong to a single thread.
asargent_no_longer_on_chrome 2016/04/26 19:06:05 optional: if you think clients of this class might
e_hakkinen 2016/04/27 09:08:23 I think it is more likely for clients to get this
+class WiFiDisplayAudioEncoder : public WiFiDisplayMediaEncoder,
+ public content::MediaStreamAudioSink {
+ public:
+ using AudioEncoderCallback =
+ base::Callback<void(scoped_refptr<WiFiDisplayAudioEncoder>)>;
+
+ static void Create(const wds::AudioCodec& audio_codec,
+ const AudioEncoderCallback& encoder_callback);
+
+ protected:
+ static const size_t kInvalidCodecModeValue = ~static_cast<size_t>(0u);
+
+ explicit WiFiDisplayAudioEncoder(const wds::AudioCodec& audio_codec);
+ ~WiFiDisplayAudioEncoder() override;
+
+ size_t GetAudioCodecMode() const;
+
+ const wds::AudioCodec audio_codec_;
+};
+
+} // namespace extensions
+
+#endif // EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_AUDIO_ENCODER_H_
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