Binding media stream audio track to speech recognition [renderer]

content/common/speech_recognition_messages.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.
 
 // Multiply-included message file, hence no include guard.
 
 #include <string>
 
+#include "base/memory/shared_memory.h"
+#include "base/sync_socket.h"
 #include "content/public/common/speech_recognition_error.h"
 #include "content/public/common/speech_recognition_grammar.h"
 #include "content/public/common/speech_recognition_result.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_param_traits.h"
+#include "media/audio/audio_parameters.h"
 #include "ui/gfx/rect.h"
 
 #define IPC_MESSAGE_START SpeechRecognitionMsgStart
 
 IPC_ENUM_TRAITS_MAX_VALUE(content::SpeechAudioErrorDetails,
                           content::SPEECH_AUDIO_ERROR_DETAILS_LAST)
 IPC_ENUM_TRAITS_MAX_VALUE(content::SpeechRecognitionErrorCode,
                           content::SPEECH_RECOGNITION_ERROR_LAST)
 
 IPC_STRUCT_TRAITS_BEGIN(content::SpeechRecognitionError)
@@ skipping 31 matching lines @@
   // Speech grammars to use.
   IPC_STRUCT_MEMBER(content::SpeechRecognitionGrammarArray, grammars)
   // URL of the page (or iframe if applicable).
   IPC_STRUCT_MEMBER(std::string, origin_url)
   // Maximum number of hypotheses allowed for each results.
   IPC_STRUCT_MEMBER(uint32, max_hypotheses)
   // Whether the user requested continuous recognition or not.
   IPC_STRUCT_MEMBER(bool, continuous)
   // Whether the user requested interim results or not.
   IPC_STRUCT_MEMBER(bool, interim_results)
+  // Wheter user has set an audio track as input

[no longer working on chromium, 2014/09/29 09:28:56]

nit, end with period

[burnik, 2014/09/29 10:24:31]

Done.

+  IPC_STRUCT_MEMBER(bool, using_audio_track)
 IPC_STRUCT_END()
 
 
 // Requests the speech recognition service to start speech recognition.
 IPC_MESSAGE_CONTROL1(SpeechRecognitionHostMsg_StartRequest,
                      SpeechRecognitionHostMsg_StartRequest_Params)
 
 // Requests the speech recognition service to abort speech recognition on
 // behalf of the given |render_view_id| and |request_id|. If there are no
 // sessions associated with the |request_id| in the render view, this call
@@ skipping 32 matching lines @@
 
 IPC_MESSAGE_ROUTED1(SpeechRecognitionMsg_AudioStarted, int /* request_id */)
 
 IPC_MESSAGE_ROUTED1(SpeechRecognitionMsg_SoundStarted, int /* request_id */)
 
 IPC_MESSAGE_ROUTED1(SpeechRecognitionMsg_SoundEnded, int /* request_id */)
 
 IPC_MESSAGE_ROUTED1(SpeechRecognitionMsg_AudioEnded, int /* request_id */)
 
 IPC_MESSAGE_ROUTED1(SpeechRecognitionMsg_Ended, int /* request_id */)
+
+IPC_MESSAGE_ROUTED4(SpeechRecognitionMsg_AudioTrackReady,
+                    int /* request_id */,
+                    media::AudioParameters /* params */,
+                    base::SharedMemoryHandle /* memory */,
+                    base::SyncSocket::TransitDescriptor /* socket */)