blob: 6d929b1d4c737fcda778d0a352f3638e62b20430 [file] [log] [blame]
// Copyright 2017 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/callback.h"
#include "base/optional.h"
#include "media/base/renderer_factory.h"
namespace media {
// RendererFactorySelector owns RendererFactory instances used within WMPI.
// Its purpose is to aggregate the signals and centralize the logic behind
// choosing which RendererFactory should be used when creating a new Renderer.
class MEDIA_EXPORT RendererFactorySelector {
using QueryIsRemotingActiveCB = base::Callback<bool()>;
using QueryIsFlingingActiveCB = base::Callback<bool()>;
enum FactoryType {
DEFAULT, // DefaultRendererFactory.
MOJO, // MojoRendererFactory.
MEDIA_PLAYER, // MediaPlayerRendererClientFactory.
COURIER, // CourierRendererFactory.
FLINGING, // FlingingRendererClientFactory
// NOTE: There should be at most one factory per factory type.
void AddFactory(FactoryType type, std::unique_ptr<RendererFactory> factory);
// Sets the base factory to be returned, when there are no signals telling us
// to select any specific factory.
// NOTE: |type| can be different than FactoryType::DEFAULT. DEFAULT is used to
// identify the DefaultRendererFactory, not to indicate that a factory should
// be used by default.
void SetBaseFactoryType(FactoryType type);
// Updates |current_factory_| if necessary, and returns its value.
// NOTE: SetBaseFactoryType() must be called before calling this method.
RendererFactory* GetCurrentFactory();
#if defined(OS_ANDROID)
// Sets whether we should be using the MEDIA_PLAYER factory instead of the
// base factory.
void SetUseMediaPlayer(bool use_media_player);
// Sets the callback to query whether we are currently remoting, and if we
// should temporarily use the COURIER factory.
void SetQueryIsRemotingActiveCB(
QueryIsRemotingActiveCB query_is_remoting_active_cb);
// Sets the callback to query whether we are currently flinging media, and if
// we should temporarily use the FLINGING factory.
void SetQueryIsFlingingActiveCB(
QueryIsFlingingActiveCB query_is_flinging_active_cb);
bool use_media_player_ = false;
QueryIsRemotingActiveCB query_is_remoting_active_cb_;
QueryIsFlingingActiveCB query_is_flinging_active_cb_;
base::Optional<FactoryType> base_factory_type_;
std::unique_ptr<RendererFactory> factories_[FACTORY_TYPE_MAX + 1];
} // namespace media