Support for providing media stream audio track to speech recognition

Source/web/SpeechRecognitionClientProxy.cpp

Index: Source/web/SpeechRecognitionClientProxy.cpp
diff --git a/Source/web/SpeechRecognitionClientProxy.cpp b/Source/web/SpeechRecognitionClientProxy.cpp
index 479f15d5ed6cbc5bad804618516c0547c1a9c980..d2c0a76ac6ea4bad2deda88f607cd39816422f6f 100644
--- a/Source/web/SpeechRecognitionClientProxy.cpp
+++ b/Source/web/SpeechRecognitionClientProxy.cpp
@@ -33,6 +33,7 @@
 #include "modules/speech/SpeechRecognitionResult.h"
 #include "modules/speech/SpeechRecognitionResultList.h"
 #include "platform/weborigin/SecurityOrigin.h"
+#include "public/platform/WebMediaStreamTrack.h"
 #include "public/web/WebSecurityOrigin.h"
 #include "public/web/WebSpeechGrammar.h"
 #include "public/web/WebSpeechRecognitionHandle.h"
@@ -52,6 +53,16 @@ PassOwnPtr<SpeechRecognitionClientProxy> SpeechRecognitionClientProxy::create(We
     return adoptPtr(new SpeechRecognitionClientProxy(recognizer));
 }
 
+void SpeechRecognitionClientProxy::setAudioTrack(SpeechRecognition* recognition, MediaStreamTrack* audioTrack)
+{
+    m_recognizer->setAudioTrack(WebSpeechRecognitionHandle(recognition), audioTrack->component(), this);

[no longer working on chromium, 2014/08/14 15:41:34]

how about
if (audioTrack) {
   m_recognizer->Attach(WebSpeechRecognitionHandle(recognition), audioTr
     ack->component(), this);
} else {
   m_recognizer->Detach(WebSpeechRecognitionHandle(recognition), this);
}
  

[burnik, 2014/08/14 16:35:15]

I wonder if it's a good design to introduce logic on the proxy - maybe this
should reside on the |SpeechRecognition|.

On 2014/08/14 15:41:34, xians1 wrote:

+}
+
+void SpeechRecognitionClientProxy::clearAudioTrack(SpeechRecognition* recognition)
+{
+    m_recognizer->clearAudioTrack(WebSpeechRecognitionHandle(recognition), this);
+}
+
 void SpeechRecognitionClientProxy::start(SpeechRecognition* recognition, const SpeechGrammarList* grammarList, const String& lang, bool continuous, bool interimResults, unsigned long maxAlternatives)
 {
     WebVector<WebSpeechGrammar> webSpeechGrammars(static_cast<size_t>(grammarList->length()));