Binding media stream audio track to speech recognition [browser]

content/browser/speech/speech_recognition_dispatcher_host.cc

 // 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.
 
 #include "content/browser/speech/speech_recognition_dispatcher_host.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
@@ skipping 139 matching lines @@
   config.language = params.language;
   config.grammars = params.grammars;
   config.max_hypotheses = params.max_hypotheses;
   config.origin_url = params.origin_url;
   config.initial_context = context;
   config.url_request_context_getter = context_getter_.get();
   config.filter_profanities = filter_profanities;
   config.continuous = params.continuous;
   config.interim_results = params.interim_results;
   config.event_listener = AsWeakPtr();
+  config.using_audio_track = params.using_audio_track;
+  // TODO(burnik): This needs to be tested on Windows.

[tommi (sloooow) - chröme, 2014/10/02 11:23:19]

has this been done?

is there a unit test?

[burnik, 2014/10/02 16:04:11]

Almost ready with recognizer impl unit test and the browser test. I guess FYI
bots can help with this?

+  config.peer_process_handle = PeerHandle();
 
   int session_id = SpeechRecognitionManager::GetInstance()->CreateSession(
       config);
   DCHECK_NE(session_id, SpeechRecognitionManager::kSessionIDInvalid);
   SpeechRecognitionManager::GetInstance()->StartSession(session_id);
 }
 
 void SpeechRecognitionDispatcherHost::OnAbortRequest(int render_view_id,
                                                      int request_id) {
   int session_id = SpeechRecognitionManager::GetInstance()->GetSession(
@@ skipping 90 matching lines @@
 // The events below are currently not used by speech JS APIs implementation.
 void SpeechRecognitionDispatcherHost::OnAudioLevelsChange(int session_id,
                                                           float volume,
                                                           float noise_volume) {
 }
 
 void SpeechRecognitionDispatcherHost::OnEnvironmentEstimationComplete(
     int session_id) {
 }
 
+void SpeechRecognitionDispatcherHost::OnAudioTrackReady(
+    int session_id,
+    const media::AudioParameters& params,
+    base::SharedMemoryHandle memory,
+    base::SyncSocket::TransitDescriptor socket) {
+  const SpeechRecognitionSessionContext& context =
+      SpeechRecognitionManager::GetInstance()->GetSessionContext(session_id);
+  Send(new SpeechRecognitionMsg_AudioTrackReady(context.render_view_id,
+                                                context.request_id, params,
+                                                memory, socket));
+}
+
 }  // namespace content