formats/bmff/hasher.h

// Copyright 2026 Google LLC
//
// 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
//
//    https://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 THIRD_PARTY_CREDENTIO_FORMATS_BMFF_HASHER_H_
#define THIRD_PARTY_CREDENTIO_FORMATS_BMFF_HASHER_H_

#include "absl/status/status.h"
#include "crypto/algorithms.h"
#include "proto/bmff_based_hash_assertion.pb.h"
#include "riegeli/bytes/reader.h"

namespace credentio {
// Returns a BMFF hash assertion template for size estimation, for
// non-fragmented BMFF assets.
BmffBasedHashAssertion GetBmffHashTemplate(HashAlgorithm alg);
// Digests a BMFF file and updates the given hash assertion template.
// Note that the serialized size of the assertion will not change.
absl::Status DigestBmff(riegeli::Reader& input,
                        BmffBasedHashAssertion& assertion_template);

}  // namespace credentio

#endif  // THIRD_PARTY_CREDENTIO_FORMATS_BMFF_HASHER_H_