Index: content/browser/media/audio_stream_monitor.cc |
diff --git a/content/browser/media/audio_stream_monitor.cc b/content/browser/media/audio_stream_monitor.cc |
deleted file mode 100644 |
index 1d2f76f7f2c02f986f5b52122834363ff96be1e8..0000000000000000000000000000000000000000 |
--- a/content/browser/media/audio_stream_monitor.cc |
+++ /dev/null |
@@ -1,162 +0,0 @@ |
-// Copyright 2014 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/media/audio_stream_monitor.h" |
- |
-#include "base/bind.h" |
-#include "base/bind_helpers.h" |
-#include "content/browser/web_contents/web_contents_impl.h" |
-#include "content/public/browser/browser_thread.h" |
-#include "content/public/browser/invalidate_type.h" |
-#include "content/public/browser/render_frame_host.h" |
- |
-namespace content { |
- |
-namespace { |
- |
-AudioStreamMonitor* AudioStreamMonitorFromRenderFrame(int render_process_id, |
- int render_frame_id) { |
- DCHECK_CURRENTLY_ON(BrowserThread::UI); |
- WebContentsImpl* const web_contents = |
- static_cast<WebContentsImpl*>(WebContents::FromRenderFrameHost( |
- RenderFrameHost::FromID(render_process_id, render_frame_id))); |
- return web_contents ? web_contents->audio_stream_monitor() : NULL; |
-} |
- |
-} // namespace |
- |
-AudioStreamMonitor::AudioStreamMonitor(WebContents* contents) |
- : web_contents_(contents), |
- clock_(&default_tick_clock_), |
- was_recently_audible_(false) { |
- DCHECK(web_contents_); |
-} |
- |
-AudioStreamMonitor::~AudioStreamMonitor() {} |
- |
-bool AudioStreamMonitor::WasRecentlyAudible() const { |
- DCHECK(thread_checker_.CalledOnValidThread()); |
- return was_recently_audible_; |
-} |
- |
-// static |
-void AudioStreamMonitor::StartMonitoringStream( |
- int render_process_id, |
- int render_frame_id, |
- int stream_id, |
- const ReadPowerAndClipCallback& read_power_callback) { |
- if (!monitoring_available()) |
- return; |
- BrowserThread::PostTask(BrowserThread::UI, |
- FROM_HERE, |
- base::Bind(&StartMonitoringHelper, |
- render_process_id, |
- render_frame_id, |
- stream_id, |
- read_power_callback)); |
-} |
- |
-// static |
-void AudioStreamMonitor::StopMonitoringStream(int render_process_id, |
- int render_frame_id, |
- int stream_id) { |
- if (!monitoring_available()) |
- return; |
- BrowserThread::PostTask(BrowserThread::UI, |
- FROM_HERE, |
- base::Bind(&StopMonitoringHelper, |
- render_process_id, |
- render_frame_id, |
- stream_id)); |
-} |
- |
-// static |
-void AudioStreamMonitor::StartMonitoringHelper( |
- int render_process_id, |
- int render_frame_id, |
- int stream_id, |
- const ReadPowerAndClipCallback& read_power_callback) { |
- DCHECK_CURRENTLY_ON(BrowserThread::UI); |
- AudioStreamMonitor* const monitor = |
- AudioStreamMonitorFromRenderFrame(render_process_id, render_frame_id); |
- if (monitor) { |
- monitor->StartMonitoringStreamOnUIThread( |
- render_process_id, stream_id, read_power_callback); |
- } |
-} |
- |
-// static |
-void AudioStreamMonitor::StopMonitoringHelper(int render_process_id, |
- int render_frame_id, |
- int stream_id) { |
- DCHECK_CURRENTLY_ON(BrowserThread::UI); |
- AudioStreamMonitor* const monitor = |
- AudioStreamMonitorFromRenderFrame(render_process_id, render_frame_id); |
- if (monitor) |
- monitor->StopMonitoringStreamOnUIThread(render_process_id, stream_id); |
-} |
- |
-void AudioStreamMonitor::StartMonitoringStreamOnUIThread( |
- int render_process_id, |
- int stream_id, |
- const ReadPowerAndClipCallback& read_power_callback) { |
- DCHECK(thread_checker_.CalledOnValidThread()); |
- DCHECK(!read_power_callback.is_null()); |
- poll_callbacks_[StreamID(render_process_id, stream_id)] = read_power_callback; |
- if (!poll_timer_.IsRunning()) { |
- poll_timer_.Start( |
- FROM_HERE, |
- base::TimeDelta::FromSeconds(1) / kPowerMeasurementsPerSecond, |
- base::Bind(&AudioStreamMonitor::Poll, base::Unretained(this))); |
- } |
-} |
- |
-void AudioStreamMonitor::StopMonitoringStreamOnUIThread(int render_process_id, |
- int stream_id) { |
- DCHECK(thread_checker_.CalledOnValidThread()); |
- poll_callbacks_.erase(StreamID(render_process_id, stream_id)); |
- if (poll_callbacks_.empty()) |
- poll_timer_.Stop(); |
-} |
- |
-void AudioStreamMonitor::Poll() { |
- for (StreamPollCallbackMap::const_iterator it = poll_callbacks_.begin(); |
- it != poll_callbacks_.end(); |
- ++it) { |
- // TODO(miu): A new UI for delivering specific power level and clipping |
- // information is still in the works. For now, we throw away all |
- // information except for "is it audible?" |
- const float power_dbfs = it->second.Run().first; |
- const float kSilenceThresholdDBFS = -72.24719896f; |
- if (power_dbfs >= kSilenceThresholdDBFS) { |
- last_blurt_time_ = clock_->NowTicks(); |
- MaybeToggle(); |
- break; // No need to poll remaining streams. |
- } |
- } |
-} |
- |
-void AudioStreamMonitor::MaybeToggle() { |
- const bool indicator_was_on = was_recently_audible_; |
- const base::TimeTicks off_time = |
- last_blurt_time_ + base::TimeDelta::FromMilliseconds(kHoldOnMilliseconds); |
- const base::TimeTicks now = clock_->NowTicks(); |
- const bool should_indicator_be_on = now < off_time; |
- |
- if (should_indicator_be_on != indicator_was_on) { |
- was_recently_audible_ = should_indicator_be_on; |
- web_contents_->NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB); |
- } |
- |
- if (!should_indicator_be_on) { |
- off_timer_.Stop(); |
- } else if (!off_timer_.IsRunning()) { |
- off_timer_.Start( |
- FROM_HERE, |
- off_time - now, |
- base::Bind(&AudioStreamMonitor::MaybeToggle, base::Unretained(this))); |
- } |
-} |
- |
-} // namespace content |