55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
// Copyright 2017 Google Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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#include "packager/media/base/widevine_pssh_generator.h"
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#include "packager/media/base/widevine_pssh_data.pb.h"
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namespace shaka {
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namespace media {
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namespace {
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// Use version 0 for backward compatibility.
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const uint8_t kWidevinePsshBoxVersion = 0;
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std::vector<uint8_t> StringToBytes(const std::string& string) {
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return std::vector<uint8_t>(string.begin(), string.end());
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}
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} // namespace
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WidevinePsshGenerator::WidevinePsshGenerator(FourCC protection_scheme)
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: PsshGenerator(std::vector<uint8_t>(std::begin(kWidevineSystemId),
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std::end(kWidevineSystemId)),
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kWidevinePsshBoxVersion),
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protection_scheme_(protection_scheme) {}
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WidevinePsshGenerator::~WidevinePsshGenerator() {}
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bool WidevinePsshGenerator::SupportMultipleKeys() {
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return true;
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}
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base::Optional<std::vector<uint8_t>>
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WidevinePsshGenerator::GeneratePsshDataFromKeyIds(
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const std::vector<std::vector<uint8_t>>& key_ids) const {
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media::WidevinePsshData widevine_pssh_data;
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for (const std::vector<uint8_t>& key_id : key_ids)
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widevine_pssh_data.add_key_id(key_id.data(), key_id.size());
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if (protection_scheme_ != FOURCC_NULL)
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widevine_pssh_data.set_protection_scheme(protection_scheme_);
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return StringToBytes(widevine_pssh_data.SerializeAsString());
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}
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base::Optional<std::vector<uint8_t>>
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WidevinePsshGenerator::GeneratePsshDataFromKeyIdAndKey(
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const std::vector<uint8_t>& key_id,
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const std::vector<uint8_t>& key) const {
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NOTIMPLEMENTED();
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return base::nullopt;
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}
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} // namespace media
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} // namespace shaka
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