Motown: Rename MediaProducer/Consumer to MediaPacketProducer/Consumer

services/media/framework_mojo/mojo_pull_mode_producer.h

-// 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.
-
-#ifndef SERVICES_MEDIA_FRAMEWORK_MOJO_MOJO_PULL_MODE_PRODUCER_H_
-#define SERVICES_MEDIA_FRAMEWORK_MOJO_MOJO_PULL_MODE_PRODUCER_H_
-
-#include <deque>
-
-#include "base/synchronization/lock.h"
-#include "mojo/common/binding_set.h"
-#include "mojo/services/media/common/interfaces/media_transport.mojom.h"
-#include "services/media/framework/models/active_sink.h"
-#include "services/media/framework_mojo/mojo_allocator.h"
-
-namespace mojo {
-namespace media {
-
-// Implements MediaPullModeProducer to forward a stream across mojo.
-class MojoPullModeProducer : public MediaPullModeProducer, public ActiveSink {
- public:
-  static std::shared_ptr<MojoPullModeProducer> Create() {
-    return std::shared_ptr<MojoPullModeProducer>(new MojoPullModeProducer());
-  }
-
-  ~MojoPullModeProducer() override;
-
-  // Adds a binding.
-  void AddBinding(InterfaceRequest<MediaPullModeProducer> producer);
-
-  // MediaPullModeProducer implementation.
-  void GetBuffer(const GetBufferCallback& callback) override;
-
-  void PullPacket(MediaPacketPtr to_release,
-                  const PullPacketCallback& callback) override;
-
-  void ReleasePacket(MediaPacketPtr to_release) override;
-
-  // ActiveSink implementation.
-  PayloadAllocator* allocator() override;
-
-  void SetDemandCallback(const DemandCallback& demand_callback) override;
-
-  Demand SupplyPacket(PacketPtr packet) override;
-
- private:
-  MojoPullModeProducer();
-
-  // Handles as many pending pulls as possible.
-  // MUST BE CALLED WITH lock_ TAKEN.
-  void HandlePendingPullsUnsafe();
-
-  // Attempts to handle a pull and indicates whether it was handled.
-  // MUST BE CALLED WITH lock_ TAKEN.
-  bool MaybeHandlePullUnsafe(const PullPacketCallback& callback);
-
-  // Runs the callback with a new MediaPacket created from the given Packet.
-  // MUST BE CALLED WITH lock_ TAKEN.
-  void HandlePullWithPacketUnsafe(const PullPacketCallback& callback,
-                                  PacketPtr packet);
-
-  // Creates a MediaPacket from a Packet.
-  MediaPacketPtr CreateMediaPacket(const PacketPtr& packet);
-
-  BindingSet<MediaPullModeProducer> bindings_;
-
-  DemandCallback demand_callback_;
-
-  // Allocates from the shared buffer.
-  MojoAllocator mojo_allocator_;
-
-  mutable base::Lock lock_;
-  // THE FIELDS BELOW SHOULD ONLY BE ACCESSED WITH lock_ TAKEN.
-  Demand demand_;
-  int64_t pts_;
-
-  // pending_pulls_ contains the callbacks for the pull requests that have yet
-  // to be satisfied. unreleased_packets_ contains the packets that have been
-  // delivered via pull but have not yet been released. cached_packet_ is a
-  // packet waiting for a pull (we keep one ready so we can be preparing a
-  // packet between pulls). If cached_packet_ isn't nullptr, pending_pulls_
-  // should be empty. We signal positive demand when cached_packet_ is nullptr
-  // and negative demand when it isn't.
-  std::deque<PullPacketCallback> pending_pulls_;
-  std::deque<PacketPtr> unreleased_packets_;
-  PacketPtr cached_packet_;
-  // THE FIELDS ABOVE SHOULD ONLY BE ACCESSED WITH lock_ TAKEN.
-};
-
-}  // namespace media
-}  // namespace mojo
-
-#endif  // SERVICES_MEDIA_FRAMEWORK_MOJO_MOJO_PULL_MODE_PRODUCER_H_