Audio output debug recording.

content/browser/webrtc/webrtc_internals.cc

 // Copyright (c) 2013 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/webrtc/webrtc_internals.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
 
 #include "base/strings/string_number_conversions.h"
 #include "build/build_config.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/web_contents/web_contents_view.h"
 #include "content/browser/webrtc/webrtc_internals_ui_observer.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/web_contents.h"
 #include "device/power_save_blocker/power_save_blocker.h"
 #include "ipc/ipc_platform_file.h"
+#include "media/audio/audio_manager.h"
 #include "media/media_features.h"
 
 #if defined(OS_WIN)
 #define IntToStringType base::IntToString16
 #else
 #define IntToStringType base::IntToString
 #endif
 
 using base::ProcessId;
 using std::string;
@@ skipping 284 matching lines @@
 #endif
 }
 
 void WebRTCInternals::DisableAudioDebugRecordings() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 #if BUILDFLAG(ENABLE_WEBRTC)
   audio_debug_recordings_ = false;
 
   // Tear down the dialog since the user has unchecked the audio debug
   // recordings box.
-  select_file_dialog_ = NULL;
+  select_file_dialog_ = nullptr;
 
   for (RenderProcessHost::iterator i(
            content::RenderProcessHost::AllHostsIterator());
        !i.IsAtEnd(); i.Advance()) {
     i.GetCurrentValue()->DisableAudioDebugRecordings();
   }
+
+  // It's safe to get the AudioManager pointer here. That pointer is invalidated
+  // on the UI thread, which we're on.
+  // AudioManager is deleted on the audio thread, and the AudioManager outlives
+  // this object, so it's safe to post unretained to the audio thread.
+  media::AudioManager* audio_manager = media::AudioManager::Get();
+  audio_manager->GetTaskRunner()->PostTask(
+      FROM_HERE, base::Bind(&media::AudioManager::DisableOutputDebugRecording,
+                            base::Unretained(audio_manager)));
 #endif
 }
 
 bool WebRTCInternals::IsAudioDebugRecordingsEnabled() const {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   return audio_debug_recordings_;
 }
 
 const base::FilePath& WebRTCInternals::GetAudioDebugRecordingsFilePath() const {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
@@ skipping 141 matching lines @@
     update->SetInteger("rid", render_process_id);
     SendUpdate("removeGetUserMediaForRenderer", std::move(update));
   }
 }
 
 #if BUILDFLAG(ENABLE_WEBRTC)
 void WebRTCInternals::EnableAudioDebugRecordingsOnAllRenderProcessHosts() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   audio_debug_recordings_ = true;
+
   for (RenderProcessHost::iterator i(
            content::RenderProcessHost::AllHostsIterator());
        !i.IsAtEnd(); i.Advance()) {
     i.GetCurrentValue()->EnableAudioDebugRecordings(
         audio_debug_recordings_file_path_);
   }
+
+  // It's safe to get the AudioManager pointer here. That pointer is invalidated
+  // on the UI thread, which we're on.
+  // AudioManager is deleted on the audio thread, and the AudioManager outlives
+  // this object, so it's safe to post unretained to the audio thread.
+  media::AudioManager* audio_manager = media::AudioManager::Get();
+  audio_manager->GetTaskRunner()->PostTask(
+      FROM_HERE, base::Bind(&media::AudioManager::EnableOutputDebugRecording,
+                            base::Unretained(audio_manager),
+                            audio_debug_recordings_file_path_));
 }
 
 void WebRTCInternals::EnableEventLogRecordingsOnAllRenderProcessHosts() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   event_log_recordings_ = true;
   for (RenderProcessHost::iterator i(
            content::RenderProcessHost::AllHostsIterator());
        !i.IsAtEnd(); i.Advance())
     i.GetCurrentValue()->StartWebRTCEventLog(event_log_recordings_file_path_);
@@ skipping 38 matching lines @@
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   while (!pending_updates_.empty()) {
     const auto& update = pending_updates_.front();
     for (auto& observer : observers_)
       observer.OnUpdate(update.command(), update.value());
     pending_updates_.pop();
   }
 }
 
 }  // namespace content