Add support for midstream audio configuration changes.

media/tools/player_x11/player_x11.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 <signal.h>
 
 #include <iostream>  // NOLINT
 
 #include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/threading/platform_thread.h"
 #include "base/threading/thread.h"
 #include "media/audio/audio_manager.h"
 #include "media/audio/null_audio_sink.h"
+#include "media/base/audio_hardware_config.h"
 #include "media/base/decryptor.h"
 #include "media/base/filter_collection.h"
 #include "media/base/media.h"
 #include "media/base/media_log.h"
 #include "media/base/media_switches.h"
 #include "media/base/pipeline.h"
 #include "media/base/video_frame.h"
 #include "media/filters/audio_renderer_impl.h"
 #include "media/filters/ffmpeg_audio_decoder.h"
 #include "media/filters/ffmpeg_demuxer.h"
@@ skipping 101 matching lines @@
       task_runner,
       video_decoders.Pass(),
       media::SetDecryptorReadyCB(),
       base::Bind(&Paint, paint_message_loop, paint_cb),
       base::Bind(&SetOpaque),
       true));
   collection->SetVideoRenderer(video_renderer.Pass());
 
   ScopedVector<media::AudioDecoder> audio_decoders;
   audio_decoders.push_back(new media::FFmpegAudioDecoder(task_runner));
-  scoped_ptr<media::AudioRenderer> audio_renderer(new media::AudioRendererImpl(
-      task_runner,
-      new media::NullAudioSink(task_runner),
-      audio_decoders.Pass(),
-      media::SetDecryptorReadyCB()));
+  media::AudioParameters out_params(
+      media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
+      media::CHANNEL_LAYOUT_STEREO,
+      44100,
+      16,
+      512);
+  media::AudioHardwareConfig hardware_config(out_params, out_params);
+
+  scoped_ptr<media::AudioRenderer> audio_renderer(
+      new media::AudioRendererImpl(task_runner,
+                                   new media::NullAudioSink(task_runner),
+                                   audio_decoders.Pass(),
+                                   media::SetDecryptorReadyCB(),
+                                   &hardware_config));
+
   collection->SetAudioRenderer(audio_renderer.Pass());
 
   base::WaitableEvent event(true, false);
   media::PipelineStatus status;
 
   pipeline->Start(
       collection.Pass(), base::Bind(&DoNothing), base::Bind(&OnStatus),
       base::Bind(&SaveStatusAndSignal, &event, &status),
       base::Bind(&OnMetadata), base::Bind(&DoNothing),
       base::Bind(&DoNothing));
@@ skipping 148 matching lines @@
   // Release callback which releases video renderer. Do this before cleaning up
   // X below since the video renderer has some X cleanup duties as well.
   paint_cb.Reset();
 
   XDestroyWindow(g_display, g_window);
   XCloseDisplay(g_display);
   g_audio_manager = NULL;
 
   return 0;
 }