chromium/components/cast_streaming/browser/frame/demuxer_stream_data_provider.h

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_CAST_STREAMING_BROWSER_FRAME_DEMUXER_STREAM_DATA_PROVIDER_H_
#define COMPONENTS_CAST_STREAMING_BROWSER_FRAME_DEMUXER_STREAM_DATA_PROVIDER_H_

#include "base/functional/callback_forward.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "components/cast_streaming/browser/common/demuxer_stream_client.h"
#include "components/cast_streaming/common/frame/demuxer_stream_traits.h"
#include "components/cast_streaming/common/public/mojom/demuxer_connector.mojom.h"
#include "mojo/public/cpp/bindings/message.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/system/data_pipe.h"

namespace cast_streaming {

// Forward declarations of concrete types. Definitions to follow.
template <typename TMojoReceiverType>
class DemuxerStreamDataProvider;

using AudioDemuxerStreamDataProvider =
    DemuxerStreamDataProvider<mojom::AudioBufferRequester>;
using VideoDemuxerStreamDataProvider =
    DemuxerStreamDataProvider<mojom::VideoBufferRequester>;

// Helper class to simplify responding to calls made over AudioBufferRequester
// and VideoBufferRequester mojo APIs.
//
// |TMojoReceiverType| is the interface used for requesting data buffers.
// Currently expected to be either AudioBufferRequester or VideoBufferRequester.
template <typename TMojoReceiverType>
class DemuxerStreamDataProvider : public DemuxerStreamTraits<TMojoReceiverType>,
                                  public TMojoReceiverType { … };

}  // namespace cast_streaming

#endif  // COMPONENTS_CAST_STREAMING_BROWSER_FRAME_DEMUXER_STREAM_DATA_PROVIDER_H_