Support multiple files for AEC dump.

content/renderer/media/media_stream_audio_processor.cc

 // Copyright 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/renderer/media/media_stream_audio_processor.h"
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/metrics/histogram.h"
 #include "content/public/common/content_switches.h"
@@ skipping 159 matching lines @@
     const blink::WebMediaConstraints& constraints,
     int effects,
     WebRtcPlayoutDataSource* playout_data_source)
     : render_delay_ms_(0),
       playout_data_source_(playout_data_source),
       audio_mirroring_(false),
       typing_detected_(false) {
   capture_thread_checker_.DetachFromThread();
   render_thread_checker_.DetachFromThread();
   InitializeAudioProcessingModule(constraints, effects);
+  if (IsAudioTrackProcessingEnabled()) {
+    aec_dump_message_filter_ = AecDumpMessageFilter::Get();
+    // In unit tests not creating a message filter, |aec_dump_message_filter_|
+    // will be NULL. We can just ignore that. Other unit tests and browser tests
+    // ensure that we do get the filter when we should.
+    if (aec_dump_message_filter_)
+      aec_dump_message_filter_->AddDelegate(this);
+  }
 }
 
 MediaStreamAudioProcessor::~MediaStreamAudioProcessor() {
   DCHECK(main_thread_checker_.CalledOnValidThread());
+  if (aec_dump_message_filter_) {
+    aec_dump_message_filter_->RemoveDelegate(this);
+    aec_dump_message_filter_ = NULL;
+  }
   StopAudioProcessing();
 }
 
 void MediaStreamAudioProcessor::OnCaptureFormatChanged(
     const media::AudioParameters& source_params) {
   DCHECK(main_thread_checker_.CalledOnValidThread());
   // There is no need to hold a lock here since the caller guarantees that
   // there is no more PushCaptureData() and ProcessAndConsumeData() callbacks
   // on the capture thread.
   InitializeCaptureConverter(source_params);
@@ skipping 37 matching lines @@
 }
 
 const media::AudioParameters& MediaStreamAudioProcessor::InputFormat() const {
   return capture_converter_->source_parameters();
 }
 
 const media::AudioParameters& MediaStreamAudioProcessor::OutputFormat() const {
   return capture_converter_->sink_parameters();
 }
 
-void MediaStreamAudioProcessor::StartAecDump(base::File aec_dump_file) {
+void MediaStreamAudioProcessor::OnAecDumpFile(
+    const IPC::PlatformFileForTransit& file_handle) {
+  DCHECK(main_thread_checker_.CalledOnValidThread());
+
+  base::File file = IPC::PlatformFileForTransitToFile(file_handle);
+  DCHECK(file.IsValid());
+
   if (audio_processing_)
-    StartEchoCancellationDump(audio_processing_.get(), aec_dump_file.Pass());
+    StartEchoCancellationDump(audio_processing_.get(), file.Pass());
+  else
+    file.Close();
 }
 
-void MediaStreamAudioProcessor::StopAecDump() {
+void MediaStreamAudioProcessor::OnDisableAecDump() {
+  DCHECK(main_thread_checker_.CalledOnValidThread());
   if (audio_processing_)
     StopEchoCancellationDump(audio_processing_.get());
 }
 
+void MediaStreamAudioProcessor::OnIpcClosing() {
+  DCHECK(main_thread_checker_.CalledOnValidThread());
+  aec_dump_message_filter_ = NULL;
+}
+
 void MediaStreamAudioProcessor::OnPlayoutData(media::AudioBus* audio_bus,
                                               int sample_rate,
                                               int audio_delay_milliseconds) {
   DCHECK(render_thread_checker_.CalledOnValidThread());
   DCHECK(audio_processing_->echo_control_mobile()->is_enabled() ^
          audio_processing_->echo_cancellation()->is_enabled());
 
   TRACE_EVENT0("audio", "MediaStreamAudioProcessor::OnPlayoutData");
   DCHECK_LT(audio_delay_milliseconds,
             std::numeric_limits<base::subtle::Atomic32>::max());
@@ skipping 226 matching lines @@
   // Return 0 if the volume has not been changed, otherwise return the new
   // volume.
   return (agc->stream_analog_level() == volume) ?
       0 : agc->stream_analog_level();
 }
 
 void MediaStreamAudioProcessor::StopAudioProcessing() {
   if (!audio_processing_.get())
     return;
 
-  StopAecDump();
+  StopEchoCancellationDump(audio_processing_.get());
 
   if (playout_data_source_)
     playout_data_source_->RemovePlayoutSink(this);
 
   audio_processing_.reset();
 }
 
 }  // namespace content