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// Copyright (c) 2012 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/decrypt_config.h"
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
namespace media {
DecryptConfig::DecryptConfig(const std::string& key_id,
const std::string& iv,
const std::vector<SubsampleEntry>& subsamples)
: key_id_(key_id),
iv_(iv),
subsamples_(subsamples) {
CHECK_GT(key_id.size(), 0u);
CHECK(iv.size() == static_cast<size_t>(DecryptConfig::kDecryptionKeySize) ||
iv.empty());
}
DecryptConfig::~DecryptConfig() {}
bool DecryptConfig::Matches(const DecryptConfig& config) const {
if (key_id() != config.key_id() || iv() != config.iv() ||
subsamples().size() != config.subsamples().size()) {
return false;
}
for (size_t i = 0; i < subsamples().size(); ++i) {
if ((subsamples()[i].clear_bytes != config.subsamples()[i].clear_bytes) ||
(subsamples()[i].cypher_bytes != config.subsamples()[i].cypher_bytes)) {
return false;
}
}
return true;
}
std::ostream& DecryptConfig::Print(std::ostream& os) const {
os << "key_id:'" << base::HexEncode(key_id_.data(), key_id_.size()) << "'"
<< " iv:'" << base::HexEncode(iv_.data(), iv_.size()) << "'";
os << " subsamples:[";
for (const SubsampleEntry& entry : subsamples_) {
os << "(clear:" << entry.clear_bytes << ", cypher:" << entry.cypher_bytes
<< ")";
}
os << "]";
return os;
}
} // namespace media
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