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// 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/renderer_audio_output_device.h"
#include "base/bind.h"
#include "base/message_loop_proxy.h"
#include "content/renderer/media/audio_message_filter.h"
namespace content {
RendererAudioOutputDevice::RendererAudioOutputDevice(
AudioMessageFilter* message_filter,
const scoped_refptr<base::MessageLoopProxy>& io_loop)
: AudioOutputDevice(message_filter, io_loop),
source_render_view_id_(MSG_ROUTING_NONE),
is_after_stream_created_(false) {
}
RendererAudioOutputDevice::~RendererAudioOutputDevice() {}
void RendererAudioOutputDevice::Start() {
AudioOutputDevice::Start();
message_loop()->PostTask(
FROM_HERE,
base::Bind(&RendererAudioOutputDevice::OnStart, this));
}
void RendererAudioOutputDevice::Stop() {
AudioOutputDevice::Stop();
message_loop()->PostTask(
FROM_HERE,
base::Bind(&RendererAudioOutputDevice::OnStop, this));
}
void RendererAudioOutputDevice::SetSourceRenderView(int render_view_id) {
message_loop()->PostTask(
FROM_HERE,
base::Bind(&RendererAudioOutputDevice::OnSourceChange, this,
render_view_id));
}
void RendererAudioOutputDevice::OnStart() {
DCHECK(message_loop()->BelongsToCurrentThread());
is_after_stream_created_ = true;
OnSourceChange(source_render_view_id_);
}
void RendererAudioOutputDevice::OnStop() {
DCHECK(message_loop()->BelongsToCurrentThread());
is_after_stream_created_ = false;
}
void RendererAudioOutputDevice::OnSourceChange(int render_view_id) {
DCHECK(message_loop()->BelongsToCurrentThread());
source_render_view_id_ = render_view_id;
if (is_after_stream_created_ && source_render_view_id_ != MSG_ROUTING_NONE) {
AudioMessageFilter* const filter =
static_cast<AudioMessageFilter*>(audio_output_ipc());
if (filter)
filter->AssociateStreamWithProducer(stream_id(), source_render_view_id_);
}
}
} // namespace content
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