Implement MojoAudioRendererSink and use it in UtilityMojoMediaClient

media/mojo/interfaces/media_types.mojom

 // 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.
 
 module media.mojom;
 
 import "ui/gfx/geometry/mojo/geometry.mojom";
 import "mojo/common/time.mojom";
 
 // See media/base/buffering_state.h for descriptions.
@@ skipping 139 matching lines @@
   // True if end of stream.
   bool end_of_stream;
 
   // Timestamp in microseconds of the first frame.
   mojo.common.mojom.TimeDelta timestamp;
 
   // Channel data. Will be empty for EOS buffers.
   array<uint8> data;
 };
 
+// This defines a mojo transport format for media::AudioBus.
+struct AudioBus {
+  // Number of channels.
+  int32 nb_channels;
+
+  // Number of frames.
+  int32 nb_frames;
+
+  array<float> data;
+};
+
 // This defines a mojo transport format for media::VideoFrame.
 struct VideoFrame {
   // Format of the frame.
   VideoPixelFormat format;
 
   // Width and height of the video frame, in pixels.
   gfx.mojom.Size coded_size;
 
   // Visible size of the frame.
   gfx.mojom.Rect visible_rect;
@@ skipping 22 matching lines @@
 };
 
 struct PipelineStatistics {
   uint64 audio_bytes_decoded;
   uint64 video_bytes_decoded;
   uint32 video_frames_decoded;
   uint32 video_frames_dropped;
   int64 audio_memory_usage;
   int64 video_memory_usage;
 };