Detect AudioInputStream muting and propagate to MediaStreamAudioSource.

content/browser/renderer_host/media/audio_input_renderer_host.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/browser/renderer_host/media/audio_input_renderer_host.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 141 matching lines @@
 }
 
 void AudioInputRendererHost::OnLog(media::AudioInputController* controller,
                                    const std::string& message) {
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::BindOnce(&AudioInputRendererHost::DoLog, this,
                      base::RetainedRef(controller), message));
 }
 
+void AudioInputRendererHost::OnMuted(media::AudioInputController* controller,
+                                     bool is_muted) {
+  BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      base::Bind(&AudioInputRendererHost::DoNotifyMutedState, this,
+                 base::RetainedRef(controller), is_muted));
+}
+
 void AudioInputRendererHost::set_renderer_pid(int32_t renderer_pid) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   renderer_pid_ = renderer_pid;
 }
 
 void AudioInputRendererHost::DoCompleteCreation(
     media::AudioInputController* controller) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   AudioEntry* entry = LookupByController(controller);
@@ skipping 56 matching lines @@
 void AudioInputRendererHost::DoLog(media::AudioInputController* controller,
                                    const std::string& message) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   AudioEntry* entry = LookupByController(controller);
   DCHECK(entry);
 
   // Add stream ID and current audio level reported by AIC to native log.
   LogMessage(entry->stream_id, message, false);
 }
 
+void AudioInputRendererHost::DoNotifyMutedState(
+    media::AudioInputController* controller,
+    bool is_muted) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  AudioEntry* entry = LookupByController(controller);
+  DCHECK(entry);
+  LogMessage(entry->stream_id,
+             base::StringPrintf("OnMuted: State changed to: %s",
+                                (is_muted ? "muted" : "not muted")),
+             true);
+  Send(new AudioInputMsg_NotifyStreamMuted(entry->stream_id, is_muted));
+}
+
 bool AudioInputRendererHost::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(AudioInputRendererHost, message)
     IPC_MESSAGE_HANDLER(AudioInputHostMsg_CreateStream, OnCreateStream)
     IPC_MESSAGE_HANDLER(AudioInputHostMsg_RecordStream, OnRecordStream)
     IPC_MESSAGE_HANDLER(AudioInputHostMsg_CloseStream, OnCloseStream)
     IPC_MESSAGE_HANDLER(AudioInputHostMsg_SetVolume, OnSetVolume)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
@@ skipping 326 matching lines @@
     const base::FilePath& file,
     int stream_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   EnableDebugRecordingForId(GetDebugRecordingFilePathWithExtensions(file),
                             stream_id);
 }
 
 #endif  // BUILDFLAG(ENABLE_WEBRTC)
 
 }  // namespace content