[Hotword] Adding audio parameters to handle audio coming from the DSP.

media/audio/cras/cras_input.h

Index: media/audio/cras/cras_input.h
diff --git a/media/audio/cras/cras_input.h b/media/audio/cras/cras_input.h
index 1919224d9a9b2f77187c35a1f0a669f5aef2d629..dd9b3fd1977907445d155c7826ae43290733574a 100644
--- a/media/audio/cras/cras_input.h
+++ b/media/audio/cras/cras_input.h
@@ -8,7 +8,8 @@
 #include <cras_client.h>
 
 #include <string>
-
+
+#include "base/cancelable_callback.h"

[dgreid, 2014/09/17 21:16:23]

Don't need this one.

[rpetterson, 2014/09/17 21:32:00]

Done.

 #include "base/compiler_specific.h"
 #include "media/audio/agc_audio_stream.h"
 #include "media/audio/audio_io.h"
@@ -51,6 +52,15 @@ class CrasInputStream : public AgcAudioStream<AudioInputStream> {
                           const timespec* sample_ts,
                           void* arg);
 
+  // Handles requests to get a sample from the provided buffer.  This will be

[dgreid, 2014/09/17 21:16:23]

I'd remove the first sentence of this comment.

[rpetterson, 2014/09/17 21:32:01]

Done.

+  // called by the audio server once after it recieves a wakeup and has data.
+  static int HotwordSampleReady(cras_client* client,
+                                cras_audio_format* fmt,
+                                uint8* hotword_phrase,
+                                size_t frames,
+                                const timespec* sample_ts,
+                                void* arg);
+
   // Handles notification that there was an error with the playback stream.
   static int StreamError(cras_client* client,
                          cras_stream_id_t stream_id,