Motown in-proc streaming framework used to implement media services.

services/media/framework/parts/null_sink.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 "services/media/framework/parts/null_sink.h"
+
+namespace mojo {
+namespace media {
+
+NullSink::NullSink() {}
+
+NullSink::~NullSink() {}
+
+bool NullSink::must_allocate() const {
+  return false;
+}
+
+Allocator* NullSink::allocator() {
+  return nullptr;
+}
+
+void NullSink::SetDemandCallback(DemandCallback demand_callback) {
+  demand_callback_ = demand_callback;
+}
+
+void NullSink::Prime() {
+  DCHECK(demand_callback_);
+  demand_callback_(Demand::kNeutral);
+}
+
+Demand NullSink::SupplyPacket(PacketPtr packet) {
+  return Demand::kNeutral;
+}
+
+} // namespace media
+} // namespace mojo