chromium/media/filters/decrypting_media_resource.h

// Copyright 2018 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_DECRYPTING_MEDIA_RESOURCE_H_
#define MEDIA_FILTERS_DECRYPTING_MEDIA_RESOURCE_H_

#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/task/sequenced_task_runner.h"
#include "media/base/media_resource.h"
#include "media/base/pipeline.h"

namespace media {

class CdmContext;
class DemuxerStream;
class DecryptingDemuxerStream;

// DecryptingMediaResource is a wrapper for a MediaResource implementation that
// provides decryption. It should only be created when:
// - The |media_resource| has type MediaResource::Type::kStream, and
// - The |cdm_context| has a Decryptor that always supports decrypt-only.
// Internally DecryptingDemuxerStreams will be created for all streams in
// |media_resource| and decrypt them into clear streams. These clear streams are
// then passed downstream to the rest of the media pipeline, which should no
// longer need to worry about decryption.
class MEDIA_EXPORT DecryptingMediaResource : public MediaResource { … };

}  // namespace media

#endif  // MEDIA_FILTERS_DECRYPTING_MEDIA_RESOURCE_H_