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/*
* Copyright 2019 The libgav1 Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LIBGAV1_EXAMPLES_FILE_READER_FACTORY_H_
#define LIBGAV1_EXAMPLES_FILE_READER_FACTORY_H_
#include <memory>
#include <string>
#include "examples/file_reader_interface.h"
namespace libgav1 {
class FileReaderFactory {
public:
using OpenFunction = std::unique_ptr<FileReaderInterface> (*)(
const std::string& file_name, bool error_tolerant);
FileReaderFactory() = delete;
FileReaderFactory(const FileReaderFactory&) = delete;
FileReaderFactory& operator=(const FileReaderFactory&) = delete;
~FileReaderFactory() = default;
// Registers the OpenFunction for a FileReaderInterface and returns true when
// registration succeeds.
static bool RegisterReader(OpenFunction open_function);
// Passes |file_name| to each OpenFunction until one succeeds. Returns nullptr
// when no reader is found for |file_name|. Otherwise a FileReaderInterface is
// returned. If |error_tolerant| is true and the reader supports it, some
// format and read errors may be ignored and partial data returned.
static std::unique_ptr<FileReaderInterface> OpenReader(
const std::string& file_name, bool error_tolerant = false);
};
} // namespace libgav1
#endif // LIBGAV1_EXAMPLES_FILE_READER_FACTORY_H_
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