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// Copyright 2018 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.
#include "media/base/subsample_entry.h"
#include "base/logging.h"
#include "base/numerics/safe_math.h"
namespace media {
bool VerifySubsamplesMatchSize(const std::vector<SubsampleEntry>& subsamples,
size_t input_size) {
base::CheckedNumeric<size_t> total_size = 0;
for (const auto& subsample : subsamples) {
// Add each entry separately to avoid the compiler doing the wrong thing.
total_size += subsample.clear_bytes;
total_size += subsample.cypher_bytes;
}
if (!total_size.IsValid() || total_size.ValueOrDie() != input_size) {
DVLOG(1) << "Subsample sizes do not equal input size";
return false;
}
return true;
}
} // namespace media
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