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-rw-r--r--content/renderer/render_audiosourceprovider.cc148
1 files changed, 0 insertions, 148 deletions
diff --git a/content/renderer/render_audiosourceprovider.cc b/content/renderer/render_audiosourceprovider.cc
deleted file mode 100644
index 6f070d5..0000000
--- a/content/renderer/render_audiosourceprovider.cc
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright (c) 2011 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/render_audiosourceprovider.h"
-
-#include "base/basictypes.h"
-#include "base/logging.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebAudioSourceProviderClient.h"
-
-using std::vector;
-using WebKit::WebVector;
-
-RenderAudioSourceProvider::RenderAudioSourceProvider()
- : is_initialized_(false),
- channels_(0),
- sample_rate_(0.0),
- is_running_(false),
- volume_(1.0),
- renderer_(NULL),
- client_(NULL) {
- // We create the AudioDevice here because it must be created in the
- // main thread. But we don't yet know the audio format (sample-rate, etc.)
- // at this point. Later, when Initialize() is called, we have
- // the audio format information and call the AudioDevice::Initialize()
- // method to fully initialize it.
- default_sink_ = new AudioDevice();
-}
-
-RenderAudioSourceProvider::~RenderAudioSourceProvider() {}
-
-void RenderAudioSourceProvider::Start() {
- base::AutoLock auto_lock(sink_lock_);
- if (!client_)
- default_sink_->Start();
- is_running_ = true;
-}
-
-void RenderAudioSourceProvider::Stop() {
- base::AutoLock auto_lock(sink_lock_);
- if (!client_)
- default_sink_->Stop();
- is_running_ = false;
-}
-
-void RenderAudioSourceProvider::Play() {
- base::AutoLock auto_lock(sink_lock_);
- if (!client_)
- default_sink_->Play();
- is_running_ = true;
-}
-
-void RenderAudioSourceProvider::Pause(bool flush) {
- base::AutoLock auto_lock(sink_lock_);
- if (!client_)
- default_sink_->Pause(flush);
- is_running_ = false;
-}
-
-bool RenderAudioSourceProvider::SetVolume(double volume) {
- base::AutoLock auto_lock(sink_lock_);
- if (!client_)
- default_sink_->SetVolume(volume);
- volume_ = volume;
- return true;
-}
-
-void RenderAudioSourceProvider::GetVolume(double* volume) {
- if (!client_)
- default_sink_->GetVolume(volume);
- else if (volume)
- *volume = volume_;
-}
-
-void RenderAudioSourceProvider::Initialize(
- size_t buffer_size,
- int channels,
- double sample_rate,
- AudioParameters::Format latency_format,
- RenderCallback* renderer) {
- base::AutoLock auto_lock(sink_lock_);
- CHECK(!is_initialized_);
- renderer_ = renderer;
-
- default_sink_->Initialize(buffer_size,
- channels,
- sample_rate,
- latency_format,
- renderer);
-
- if (client_) {
- // Inform WebKit about the audio stream format.
- client_->setFormat(channels, sample_rate);
- }
-
- // Keep track of the format in case the client hasn't yet been set.
- channels_ = channels;
- sample_rate_ = sample_rate;
- is_initialized_ = true;
-}
-
-void RenderAudioSourceProvider::setClient(
- WebKit::WebAudioSourceProviderClient* client) {
- // Synchronize with other uses of client_ and default_sink_.
- base::AutoLock auto_lock(sink_lock_);
-
- if (client && client != client_) {
- // Detach the audio renderer from normal playback.
- default_sink_->Pause(true);
-
- // The client will now take control by calling provideInput() periodically.
- client_ = client;
-
- if (is_initialized_) {
- // The client needs to be notified of the audio format, if available.
- // If the format is not yet available, we'll be notified later
- // when Initialize() is called.
-
- // Inform WebKit about the audio stream format.
- client->setFormat(channels_, sample_rate_);
- }
- } else if (!client && client_) {
- // Restore normal playback.
- client_ = NULL;
- // TODO(crogers): We should call default_sink_->Play() if we're
- // in the playing state.
- }
-}
-
-void RenderAudioSourceProvider::provideInput(
- const WebVector<float*>& audio_data, size_t number_of_frames) {
- DCHECK(client_);
-
- if (renderer_ && is_initialized_ && is_running_) {
- // Wrap WebVector as std::vector.
- vector<float*> v(audio_data.size());
- for (size_t i = 0; i < audio_data.size(); ++i)
- v[i] = audio_data[i];
-
- // TODO(crogers): figure out if we should volume scale here or in common
- // WebAudio code. In any case we need to take care of volume.
- renderer_->Render(v, number_of_frames, 0);
- } else {
- // Provide silence if the source is not running.
- for (size_t i = 0; i < audio_data.size(); ++i)
- memset(audio_data[i], 0, sizeof(float) * number_of_frames);
- }
-}