Motown: Framework parts for mojo transport (producer/consumer/mediapipe) and control (audiotrack).

services/media/framework_mojo/audio_track_producer.cc

+// Copyright 2016 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 "base/logging.h"
+#include "services/media/framework_mojo/audio_track_producer.h"
+
+namespace mojo {
+namespace media {
+
+AudioTrackProducer::AudioTrackProducer(MediaPipePtr pipe) :
+    pipe_(pipe.Pass()) {
+  DCHECK(pipe_.is_bound());
+
+  DCHECK(!mojo_allocator_.initialized());
+  mojo_allocator_.InitNew(256 * 1024); // TODO(dalesat): Made up!
+
+  pipe_->SetBuffer(
+      mojo_allocator_.GetDuplicateHandle(),
+      mojo_allocator_.size());
+}
+
+AudioTrackProducer::~AudioTrackProducer() {}
+
+bool AudioTrackProducer::IsConnected() {
+  return pipe_.is_bound();
+}
+
+void AudioTrackProducer::PushPacketInternal(
+    Packet* packet_raw_ptr,
+    MediaPacketPtr media_packet) {
+  DCHECK(pipe_.is_bound());
+  pipe_->SendPacket(
+      media_packet.Pass(),
+      [this, packet_raw_ptr](MediaPipe::SendResult result) {
+        PacketPtr packet = PacketPtr(packet_raw_ptr);
+        PushCompleted(packet);
+      });
+}
+
+void AudioTrackProducer::FlushPipe(const FlushPipeCallback& callback) {
+  DCHECK(pipe_.is_bound());
+  pipe_->Flush(callback);
+}
+
+} // namespace media
+} // namespace mojo