PepperPlatformAudioInputImpl: support audio input device selection.

webkit/plugins/ppapi/plugin_delegate.h

 // Copyright (c) 2012 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 WEBKIT_PLUGINS_PPAPI_PLUGIN_DELEGATE_H_
 #define WEBKIT_PLUGINS_PPAPI_PLUGIN_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 209 matching lines @@
     virtual bool StopPlayback() = 0;
 
     // Closes the stream. Make sure to call this before the object is
     // destructed.
     virtual void ShutDown() = 0;
 
    protected:
     virtual ~PlatformAudioOutput() {}
   };
 
+  class PlatformAudioInputClient : public PlatformAudioCommonClient {
+   public:
+    virtual void StreamCreationFailed() = 0;
+
+   protected:
+    virtual ~PlatformAudioInputClient() {}
+  };
+
   class PlatformAudioInput {
    public:
-    // Starts the capture. Returns false on error or if called before the
-    // stream is created or after the stream is closed.
-    virtual bool StartCapture() = 0;
+    // Starts the capture.
+    virtual void StartCapture() = 0;
 
-    // Stops the capture. Returns false on error or if called before the stream
-    // is created or after the stream is closed.
-    virtual bool StopCapture() = 0;
+    // Stops the capture.
+    virtual void StopCapture() = 0;
 
     // Closes the stream. Make sure to call this before the object is
     // destructed.
     virtual void ShutDown() = 0;
 
    protected:
     virtual ~PlatformAudioInput() {}
   };
 
   // Interface for PlatformVideoDecoder is directly inherited from general media
@@ skipping 92 matching lines @@
   // Get audio hardware output buffer size.
   virtual uint32_t GetAudioHardwareOutputBufferSize() = 0;
 
   // The caller is responsible for calling Shutdown() on the returned pointer
   // to clean up the corresponding resources allocated during this call.
   virtual PlatformAudioOutput* CreateAudioOutput(
       uint32_t sample_rate,
       uint32_t sample_count,
       PlatformAudioCommonClient* client) = 0;
 
+  // If |device_id| is empty, the default audio input device will be used.
   // The caller is responsible for calling Shutdown() on the returned pointer
   // to clean up the corresponding resources allocated during this call.
   virtual PlatformAudioInput* CreateAudioInput(
+      const std::string& device_id,
       uint32_t sample_rate,
       uint32_t sample_count,
-      PlatformAudioCommonClient* client) = 0;
+      PlatformAudioInputClient* client) = 0;
 
   // A pointer is returned immediately, but it is not ready to be used until
   // BrokerConnected has been called.
   // The caller is responsible for calling Release() on the returned pointer
   // to clean up the corresponding resources allocated during this call.
   virtual Broker* ConnectToBroker(webkit::ppapi::PPB_Broker_Impl* client) = 0;
 
   // Notifies that the number of find results has changed.
   virtual void NumberOfFindResultsChanged(int identifier,
                                           int total,
@@ skipping 235 matching lines @@
                                const EnumerateDevicesCallback& callback) = 0;
   // Create a ClipboardClient for writing to the clipboard. The caller will own
   // the pointer to this.
   virtual webkit_glue::ClipboardClient* CreateClipboardClient() const = 0;
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PLUGIN_DELEGATE_H_