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