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- // Copyright 2016 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_CDM_CDM_HOST_FILES_H_
- #define MEDIA_CDM_CDM_HOST_FILES_H_
- #include <memory>
- #include <vector>
- #include "base/files/file.h"
- #include "base/files/file_path.h"
- #include "base/lazy_instance.h"
- #include "base/memory/ptr_util.h"
- #include "base/native_library.h"
- #include "base/path_service.h"
- #include "build/build_config.h"
- #include "media/base/media_export.h"
- #include "media/cdm/api/content_decryption_module_ext.h"
- #include "media/cdm/cdm_host_file.h"
- #include "media/cdm/cdm_paths.h"
- namespace base {
- class FilePath;
- }
- namespace media {
- // Manages all CDM host files.
- class MEDIA_EXPORT CdmHostFiles {
- public:
- CdmHostFiles();
- CdmHostFiles(const CdmHostFiles&) = delete;
- CdmHostFiles& operator=(const CdmHostFiles&) = delete;
- ~CdmHostFiles();
- // Opens all common files and CDM specific files for the CDM at |cdm_path|.
- void Initialize(const base::FilePath& cdm_path,
- const std::vector<CdmHostFilePath>& cdm_host_file_paths);
- // Status of CDM host verification.
- // Note: Reported to UMA. Do not change the values.
- enum class Status {
- kNotCalled = 0,
- kSuccess = 1,
- kCdmLoadFailed = 2,
- kGetFunctionFailed = 3,
- kInitVerificationFailed = 4,
- kStatusCount
- };
- // Initializes the verification of CDM files by calling the function exported
- // by the CDM. If unexpected error happens, all files will be closed.
- // Otherwise, the PlatformFiles are passed to the CDM which will close the
- // files later.
- // NOTE: Initialize() must be called before calling this.
- Status InitVerification(base::NativeLibrary cdm_library);
- void CloseAllFiles();
- private:
- // Opens common CDM host files shared by all CDMs.
- void OpenCommonFiles(const std::vector<CdmHostFilePath>& cdm_host_file_paths);
- // Opens the CDM file.
- void OpenCdmFile(const base::FilePath& cdm_path);
- // Fills |cdm_host_files| with common and CDM specific files. The ownership
- // of those files are also transferred.
- void TakePlatformFiles(std::vector<cdm::HostFile>* cdm_host_files);
- using ScopedFileVector = std::vector<std::unique_ptr<CdmHostFile>>;
- // Files common to all CDM types, e.g. main executable.
- ScopedFileVector common_files_;
- // Files specific to each CDM type, e.g. the CDM binary.
- ScopedFileVector cdm_specific_files_;
- };
- } // namespace media
- #endif // MEDIA_CDM_CDM_HOST_FILES_H_
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