chromium/media/filters/decoder_selector.h

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_FILTERS_DECODER_SELECTOR_H_
#define MEDIA_FILTERS_DECODER_SELECTOR_H_

#include <memory>
#include <vector>

#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/time/time.h"
#include "media/base/demuxer_stream.h"
#include "media/base/pipeline_status.h"
#include "media/base/waiting.h"
#include "media/filters/decoder_stream_traits.h"

namespace base {
class SequencedTaskRunner;
}

namespace media {

class CdmContext;
class DecryptingDemuxerStream;
class MediaLog;

// Enum returned by `DecoderSelector::DecoderPriorityCB` to indicate
// priority of the current decoder.
enum class DecoderPriority { … };

// DecoderSelector handles construction and initialization of Decoders for a
// DemuxerStream, and maintains the state required for decoder fallback.
// The template parameter |StreamType| is the type of stream we will be
// selecting a decoder for.
template<DemuxerStream::Type StreamType>
class MEDIA_EXPORT DecoderSelector { … };

VideoDecoderSelector;
AudioDecoderSelector;

}  // namespace media

#endif  // MEDIA_FILTERS_DECODER_SELECTOR_H_