Added AudioBuffer/AudioChunk abstractions for speech recognition and improved speech_recognizer_impl_unittest.

audio_encoder  - Introduced AudioBuffer class in order to hide the current string-based implementation (which involved a lot of dirty and distributed casts) and make room for future implementations based on a circular buffer.

speech_recognizer_impl_unittest
 - Created MockAudioManager class, in order to avoid using the true audio manager on trybots, which could lead to errors accessing the audio device.

BUG=116954
TEST=speech_recognizer_impl_uinittest should never raise errors related to the audio driver (e.g, device in use, no microphone attached, etc).


Review URL: http://codereview.chromium.org/9646031

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@126512 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 3 insertions, 1 deletions

diff --git a/content/browser/speech/endpointer/endpointer_unittest.cc b/content/browser/speech/endpointer/endpointer_unittest.cc
index 240e5dc..37f2339 100644
--- a/content/browser/speech/endpointer/endpointer_unittest.cc
+++ b/content/browser/speech/endpointer/endpointer_unittest.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "content/browser/speech/audio_buffer.h"
 #include "content/browser/speech/endpointer/endpointer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -116,7 +117,8 @@ class EndpointerFrameProcessor : public FrameProcessor {
       : endpointer_(endpointer) {}
 
   EpStatus ProcessFrame(int64 time, int16* samples, int frame_size) {
-    endpointer_->ProcessAudio(samples, kFrameSize, NULL);
+    AudioChunk frame(reinterpret_cast<uint8*>(samples), kFrameSize * 2, 2);
+    endpointer_->ProcessAudio(frame, NULL);
     int64 ep_time;
     return endpointer_->Status(&ep_time);
   }