зеркало из https://github.com/mozilla/gecko-dev.git
47 строки
1.6 KiB
C++
47 строки
1.6 KiB
C++
/* -*- 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
|