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804b8b8883
# skip-blame Differential Revision: https://phabricator.services.mozilla.com/D12251 --HG-- extra : moz-landing-system : lando
46 lines
1.6 KiB
C++
46 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "DecryptJob.h"
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#include "mozilla/Atomics.h"
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namespace mozilla {
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static Atomic<uint32_t> sDecryptJobInstanceCount(0u);
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DecryptJob::DecryptJob(MediaRawData* aSample)
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: mId(++sDecryptJobInstanceCount), mSample(aSample) {}
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RefPtr<DecryptPromise> DecryptJob::Ensure() {
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return mPromise.Ensure(__func__);
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}
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void DecryptJob::PostResult(DecryptStatus aResult) {
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nsTArray<uint8_t> empty;
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PostResult(aResult, empty);
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}
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void DecryptJob::PostResult(DecryptStatus aResult,
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Span<const uint8_t> aDecryptedData) {
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if (aDecryptedData.Length() != mSample->Size()) {
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NS_WARNING("CDM returned incorrect number of decrypted bytes");
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}
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if (aResult == eme::Ok) {
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UniquePtr<MediaRawDataWriter> writer(mSample->CreateWriter());
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PodCopy(writer->Data(), aDecryptedData.Elements(),
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std::min<size_t>(aDecryptedData.Length(), mSample->Size()));
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} else if (aResult == eme::NoKeyErr) {
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NS_WARNING("CDM returned NoKeyErr");
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// We still have the encrypted sample, so we can re-enqueue it to be
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// decrypted again once the key is usable again.
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} else {
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nsAutoCString str("CDM returned decode failure DecryptStatus=");
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str.AppendInt(aResult);
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NS_WARNING(str.get());
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}
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mPromise.Resolve(DecryptResult(aResult, mSample), __func__);
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}
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} // namespace mozilla
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