Modifies AudioInputCallback::OnData and use media::AudioBus instead of plain byte vector (Relanding)

content/browser/renderer_host/media/audio_input_renderer_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/renderer_host/media/audio_input_renderer_host.h"
 
 #include "base/bind.h"
 #include "base/memory/shared_memory.h"
 #include "base/metrics/histogram.h"
 #include "base/numerics/safe_math.h"
 #include "base/process/process.h"
 #include "base/strings/stringprintf.h"
 #include "content/browser/media/capture/web_contents_audio_input_stream.h"
 #include "content/browser/media/capture/web_contents_capture_util.h"
 #include "content/browser/media/media_internals.h"
 #include "content/browser/renderer_host/media/audio_input_device_manager.h"
 #include "content/browser/renderer_host/media/audio_input_sync_writer.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "media/audio/audio_manager_base.h"
+#include "media/base/audio_bus.h"
 
 namespace content {
 
 struct AudioInputRendererHost::AudioEntry {
   AudioEntry();
   ~AudioEntry();
 
   // The AudioInputController that manages the audio input stream.
   scoped_refptr<media::AudioInputController> controller;
 
@@ skipping 76 matching lines @@
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(
           &AudioInputRendererHost::DoHandleError,
           this,
           make_scoped_refptr(controller),
           error_code));
 }
 
 void AudioInputRendererHost::OnData(media::AudioInputController* controller,
-                                    const uint8* data,
-                                    uint32 size) {
+                                    const media::AudioBus* data) {
   NOTREACHED() << "Only low-latency mode is supported.";
 }
 
 void AudioInputRendererHost::OnLog(media::AudioInputController* controller,
                                    const std::string& message) {
   BrowserThread::PostTask(BrowserThread::IO,
                           FROM_HERE,
                           base::Bind(&AudioInputRendererHost::DoLog,
                                      this,
                                      make_scoped_refptr(controller),
@@ skipping 157 matching lines @@
       return;
     }
 
     device_id = info->device.id;
     device_name = info->device.name;
   }
 
   // Create a new AudioEntry structure.
   scoped_ptr<AudioEntry> entry(new AudioEntry());
 
-  const uint32 segment_size = (sizeof(media::AudioInputBufferParameters) +
-                               audio_params.GetBytesPerBuffer());
+  const uint32 segment_size =
+      (sizeof(media::AudioInputBufferParameters) +
+       media::AudioBus::CalculateMemorySize(audio_params));
   entry->shared_memory_segment_count = config.shared_memory_count;
 
   // Create the shared memory and share it with the renderer process
   // using a new SyncWriter object.
   base::CheckedNumeric<uint32> size = segment_size;
   size *= entry->shared_memory_segment_count;
   if (!size.IsValid() ||
       !entry->shared_memory.CreateAndMapAnonymous(size.ValueOrDie())) {
     // If creation of shared memory failed then send an error message.
     SendErrorMessage(stream_id, SHARED_MEMORY_CREATE_FAILED);
     return;
   }
 
-  scoped_ptr<AudioInputSyncWriter> writer(
-      new AudioInputSyncWriter(&entry->shared_memory,
-                               entry->shared_memory_segment_count));
+  scoped_ptr<AudioInputSyncWriter> writer(new AudioInputSyncWriter(
+      &entry->shared_memory, entry->shared_memory_segment_count, audio_params));
 
   if (!writer->Init()) {
     SendErrorMessage(stream_id, SYNC_WRITER_INIT_FAILED);
     return;
   }
 
   // If we have successfully created the SyncWriter then assign it to the
   // entry and construct an AudioInputController.
   entry->writer.reset(writer.release());
   if (WebContentsCaptureUtil::IsWebContentsDeviceId(device_id)) {
@@ skipping 141 matching lines @@
   // TODO(hclam): Implement a faster look up method.
   for (AudioEntryMap::iterator i = audio_entries_.begin();
        i != audio_entries_.end(); ++i) {
     if (controller == i->second->controller.get())
       return i->second;
   }
   return NULL;
 }
 
 }  // namespace content