chromium/components/cast_streaming/renderer/common/buffer_requester.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_RENDERER_COMMON_BUFFER_REQUESTER_H_
#define COMPONENTS_CAST_STREAMING_RENDERER_COMMON_BUFFER_REQUESTER_H_

#include <memory>

#include "base/functional/bind.h"
#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/task/sequenced_task_runner.h"
#include "components/cast_streaming/common/frame/demuxer_stream_traits.h"
#include "components/cast_streaming/common/public/mojom/demuxer_connector.mojom.h"
#include "components/cast_streaming/renderer/common/decoder_buffer_provider_impl.h"
#include "components/cast_streaming/renderer/public/decoder_buffer_provider.h"
#include "media/mojo/mojom/media_types.mojom-forward.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/system/data_pipe.h"

namespace cast_streaming {

template <typename TMojoRemoteType>
class BufferRequester;

using AudioBufferRequester = BufferRequester<mojom::AudioBufferRequester>;
using VideoBufferRequester = BufferRequester<mojom::VideoBufferRequester>;

// This class provides a wrapper around the remote end of a BufferRequester
// mojo API (either AudioBufferRequester or VideoBufferRequester). It handles
// creating new EncodedBufferProviders as new configs are available, as well as
// requesting buffers for such instances.
template <typename TMojoRemoteType>
class BufferRequester
    : public DemuxerStreamTraits<TMojoRemoteType>,
      public DecoderBufferProviderImpl<
          typename DemuxerStreamTraits<TMojoRemoteType>::ConfigType>::Client { … };

}  // namespace cast_streaming

#endif  // COMPONENTS_CAST_STREAMING_RENDERER_COMMON_BUFFER_REQUESTER_H_