Audio software mixer.

content/renderer/media/audio_device.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/renderer/media/audio_device.h"
 
 #include "base/debug/trace_event.h"
 #include "base/message_loop.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/time.h"
@@ skipping 192 matching lines @@
     if (!audio_thread_.IsStopped())
       callback_->OnRenderError();
   }
 }
 
 void AudioDevice::OnStreamCreated(
     base::SharedMemoryHandle handle,
     base::SyncSocket::Handle socket_handle,
     uint32 length) {
   DCHECK(message_loop()->BelongsToCurrentThread());
+/*
   DCHECK_GE(length,
       audio_parameters_.frames_per_buffer() * sizeof(int16) *
       audio_parameters_.channels());
+*/
 #if defined(OS_WIN)
   DCHECK(handle);
   DCHECK(socket_handle);
 #else
   DCHECK_GE(handle.fd, 0);
   DCHECK_GE(socket_handle, 0);
 #endif
 
   base::AutoLock auto_lock(audio_thread_lock_);
 
@@ skipping 67 matching lines @@
   // to the browser process as float, so we don't lose precision for
   // audio hardware which has better than 16bit precision.
   int16* data = reinterpret_cast<int16*>(shared_memory_.memory());
   media::InterleaveFloatToInt16(audio_data_, data,
       audio_parameters_.frames_per_buffer());
 
   // Let the host know we are done.
   media::SetActualDataSizeInBytes(&shared_memory_, memory_length_,
       num_frames * audio_parameters_.channels() * sizeof(data[0]));
 }