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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_CAPTURE_VIDEO_CHROMEOS_VENDOR_TAG_OPS_DELEGATE_H_
#define MEDIA_CAPTURE_VIDEO_CHROMEOS_VENDOR_TAG_OPS_DELEGATE_H_
#include <map>
#include <string>
#include <vector>
#include "media/capture/video/chromeos/mojom/camera_common.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace media {
struct VendorTagInfo {
cros::mojom::CameraMetadataTag tag;
std::string section_name;
std::string tag_name;
cros::mojom::EntryType type;
};
class VendorTagOpsDelegate {
public:
VendorTagOpsDelegate(
scoped_refptr<base::SingleThreadTaskRunner> ipc_task_runner);
~VendorTagOpsDelegate();
// Setups/Teardowns the VendorTagOpsDelegate instance. All methods here should
// be called on |ipc_task_runner_|.
mojo::PendingReceiver<cros::mojom::VendorTagOps> MakeReceiver();
void Initialize();
void Reset();
// Gets the info by name or tag after |inited_|. The returned pointer is still
// owned by VendorTagOpsDelegate. Returns nullptr if not found. These
// functions can be called concurrently on different threads.
const VendorTagInfo* GetInfoByName(const std::string& full_name);
const VendorTagInfo* GetInfoByTag(cros::mojom::CameraMetadataTag tag);
private:
void RemovePending(uint32_t tag);
void OnGotTagCount(int32_t tag_count);
void OnGotAllTags(size_t tag_count, const std::vector<uint32_t>& tags);
void OnGotSectionName(uint32_t tag,
const base::Optional<std::string>& section_name);
void OnGotTagName(uint32_t tag, const base::Optional<std::string>& tag_name);
void OnGotTagType(uint32_t tag, int32_t type);
scoped_refptr<base::SequencedTaskRunner> ipc_task_runner_;
mojo::Remote<cros::mojom::VendorTagOps> vendor_tag_ops_;
// The paritally initialized tags. A tag with its info would be moved to
// |name_map_| and |tag_map_| once it's fully initialized. The |inited_| event
// would be signaled when |pending_info_| is empty.
std::map<uint32_t, VendorTagInfo> pending_info_;
// These maps are read-only after |inited_|.
std::map<std::string, VendorTagInfo> name_map_;
std::map<cros::mojom::CameraMetadataTag, VendorTagInfo> tag_map_;
base::WaitableEvent initialized_;
};
} // namespace media
#endif // MEDIA_CAPTURE_VIDEO_CHROMEOS_VENDOR_TAG_OPS_DELEGATE_H_
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