blob: e9f2be55891d891e932f39d535267bc35f16551f [file] [log] [blame]
// Copyright (c) 2012 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 <list>
#include "base/memory/ref_counted.h"
#include "media/base/media_export.h"
namespace media {
class AudioDecoder;
class AudioRenderer;
class Demuxer;
class VideoDecoder;
class VideoRenderer;
// Represents a set of uninitialized demuxer and audio/video decoders and
// renderers. Used to start a Pipeline object for media playback.
// TODO(scherkus): Replace FilterCollection with something sensible, see
class MEDIA_EXPORT FilterCollection {
typedef std::list<scoped_refptr<AudioDecoder> > AudioDecoderList;
typedef std::list<scoped_refptr<VideoDecoder> > VideoDecoderList;
// Demuxer accessor methods.
void SetDemuxer(const scoped_refptr<Demuxer>& demuxer);
const scoped_refptr<Demuxer>& GetDemuxer();
// Adds a filter to the collection.
void AddAudioDecoder(AudioDecoder* audio_decoder);
void AddAudioRenderer(AudioRenderer* audio_renderer);
void AddVideoRenderer(VideoRenderer* video_renderer);
// Remove remaining filters.
void Clear();
// Selects a filter of the specified type from the collection.
// If the required filter cannot be found, NULL is returned.
// If a filter is returned it is removed from the collection.
// Filters are selected in FIFO order.
void SelectAudioRenderer(scoped_refptr<AudioRenderer>* out);
void SelectVideoRenderer(scoped_refptr<VideoRenderer>* out);
AudioDecoderList* GetAudioDecoders();
VideoDecoderList* GetVideoDecoders();
scoped_refptr<Demuxer> demuxer_;
AudioDecoderList audio_decoders_;
VideoDecoderList video_decoders_;
std::list<scoped_refptr<AudioRenderer> > audio_renderers_;
std::list<scoped_refptr<VideoRenderer> > video_renderers_;
} // namespace media