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// 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 CONTENT_BROWSER_RENDERER_HOST_MEDIA_FUCHSIA_MEDIA_CODEC_PROVIDER_IMPL_H_
#define CONTENT_BROWSER_RENDERER_HOST_MEDIA_FUCHSIA_MEDIA_CODEC_PROVIDER_IMPL_H_
#include <fuchsia/mediacodec/cpp/fidl.h>
#include "base/threading/thread_checker.h"
#include "content/common/content_export.h"
#include "media/mojo/mojom/fuchsia_media.mojom.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
namespace content {
// Implements media::mojom::FuchsiaMediFuchsiaMediaCodecProvider by calling
// out to the fuchsia::mediacodec::CodecFactory APIs. Runs on the IO thread in
// the Browser process.
//
// It is used in cases without a frame context, namely by WebRTC, and for
// querying of supported codecs.
class CONTENT_EXPORT FuchsiaMediaCodecProviderImpl final
: public media::mojom::FuchsiaMediaCodecProvider {
public:
FuchsiaMediaCodecProviderImpl();
~FuchsiaMediaCodecProviderImpl() override;
FuchsiaMediaCodecProviderImpl(const FuchsiaMediaCodecProviderImpl&) = delete;
FuchsiaMediaCodecProviderImpl& operator=(
const FuchsiaMediaCodecProviderImpl&) = delete;
void AddReceiver(
mojo::PendingReceiver<media::mojom::FuchsiaMediaCodecProvider> receiver);
// media::mojom::FuchsiaMediaCodecProvider implementation.
void CreateVideoDecoder(
media::VideoCodec codec,
media::mojom::VideoDecoderSecureMemoryMode secure_mode,
fidl::InterfaceRequest<fuchsia::media::StreamProcessor>
stream_processor_request) final;
void GetSupportedVideoDecoderConfigs(
GetSupportedVideoDecoderConfigsCallback callback) final;
private:
void EnsureCodecFactory();
// Handlers for events on the codec factory API channel.
void OnCodecFactoryDisconnected(zx_status_t status);
void OnGetDetailedCodecDescriptions(
fuchsia::mediacodec::CodecFactoryGetDetailedCodecDescriptionsResponse);
void RunPendingGetSupportedVideoDecoderConfigsCallbacks();
// Connection pointer to the platform codec factory.
fuchsia::mediacodec::CodecFactoryPtr codec_factory_;
// Cache of video decoder configurations supported by codec_factory_.
absl::optional<media::SupportedVideoDecoderConfigs>
supported_video_decoder_configs_;
// Holds GetSupportedVideoDecoderConfigs completion callbacks
// from calls received before the list of supported configurations
// has been fetched and cached.
std::vector<GetSupportedVideoDecoderConfigsCallback>
pending_get_supported_vd_configs_callbacks_;
mojo::ReceiverSet<media::mojom::FuchsiaMediaCodecProvider> receivers_;
THREAD_CHECKER(thread_checker_);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_FUCHSIA_MEDIA_CODEC_PROVIDER_IMPL_H_
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