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// 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.
#ifndef MEDIA_MOJO_SERVICES_MOJO_MEDIA_CLIENT_H_
#define MEDIA_MOJO_SERVICES_MOJO_MEDIA_CLIENT_H_
#include "base/lazy_instance.h"
#include "base/memory/scoped_vector.h"
#include "base/single_thread_task_runner.h"
#include "media/base/audio_decoder.h"
#include "media/base/audio_hardware_config.h"
#include "media/base/audio_renderer_sink.h"
#include "media/base/cdm_factory.h"
#include "media/base/media_log.h"
#include "media/base/renderer_factory.h"
#include "media/base/video_decoder.h"
#include "media/base/video_renderer_sink.h"
namespace media {
// Interface class which clients will extend to override (at compile time) the
// default configurations for mojo media services.
class PlatformMojoMediaClient {
public:
virtual ~PlatformMojoMediaClient() {};
// Returns the RendererFactory to be used by MojoRendererService. If returns
// null, a RendererImpl will be used with audio/video decoders provided in
// CreateAudioDecoders() and CreateVideoDecoders().
virtual scoped_ptr<RendererFactory> CreateRendererFactory(
const scoped_refptr<MediaLog>& media_log) = 0;
// The list of audio or video decoders for use with RendererImpl when
// CreateRendererFactory() returns null. Ownership of the decoders is passed
// to the caller. The methods on each decoder will only be called on
// |media_task_runner|. |media_log| should be used to log errors or important
// status information.
virtual ScopedVector<AudioDecoder> CreateAudioDecoders(
const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
const scoped_refptr<MediaLog>& media_log) = 0;
virtual ScopedVector<VideoDecoder> CreateVideoDecoders(
const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
const scoped_refptr<MediaLog>& media_log) = 0;
// The output sink used for rendering audio or video respectively.
virtual scoped_refptr<AudioRendererSink> CreateAudioRendererSink() = 0;
virtual scoped_ptr<VideoRendererSink> CreateVideoRendererSink(
const scoped_refptr<base::SingleThreadTaskRunner>& task_runner) = 0;
// The platform's audio hardware configuration. Note, this must remain
// constant for the lifetime of the PlatformMojoMediaClient.
virtual const AudioHardwareConfig& GetAudioHardwareConfig() = 0;
// Returns the CdmFactory to be used by MojoCdmService.
virtual scoped_ptr<CdmFactory> CreateCdmFactory() = 0;
};
class MojoMediaClient {
public:
// Returns an instance of the MojoMediaClient object. Only one instance will
// exist per process.
static MojoMediaClient* Get();
// Copy of the PlatformMojoMediaClient interface.
scoped_ptr<RendererFactory> CreateRendererFactory(
const scoped_refptr<MediaLog>& media_log);
ScopedVector<AudioDecoder> CreateAudioDecoders(
const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
const scoped_refptr<MediaLog>& media_log);
ScopedVector<VideoDecoder> CreateVideoDecoders(
const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
const scoped_refptr<MediaLog>& media_log);
scoped_refptr<AudioRendererSink> CreateAudioRendererSink();
scoped_ptr<VideoRendererSink> CreateVideoRendererSink(
const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
const AudioHardwareConfig& GetAudioHardwareConfig();
scoped_ptr<CdmFactory> CreateCdmFactory();
private:
friend struct base::DefaultLazyInstanceTraits<MojoMediaClient>;
MojoMediaClient();
~MojoMediaClient();
scoped_ptr<PlatformMojoMediaClient> mojo_media_client_;
DISALLOW_COPY_AND_ASSIGN(MojoMediaClient);
};
} // namespace media
#endif // MEDIA_MOJO_SERVICES_MOJO_MEDIA_CLIENT_H_
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