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4757b59a5b
This works, at least on Windows, if the NSPR_LOG_FILE is set at a file in the OS temp dir. This means we can turn on CDM logging in release builds, in the sandboxed child process, without needing to recompile to #define on logging. This will make debugging issues with the CDM easier. MozReview-Commit-ID: 6cAxMy4lv3T --HG-- extra : rebase_source : eb75bba8e0dc38d1a0137cef28b7589ded43351a
80 lines
2.3 KiB
C++
80 lines
2.3 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 "WidevineUtils.h"
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#include "WidevineDecryptor.h"
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#include "gmp-api/gmp-errors.h"
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#include <stdarg.h>
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#include <stdio.h>
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namespace mozilla {
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namespace detail {
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LogModule* GetCDMLog()
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{
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static LazyLogModule sLog("CDM");
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return sLog;
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}
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} // namespace detail
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GMPErr
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ToGMPErr(cdm::Status aStatus)
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{
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switch (aStatus) {
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case cdm::kSuccess: return GMPNoErr;
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case cdm::kNeedMoreData: return GMPGenericErr;
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case cdm::kNoKey: return GMPNoKeyErr;
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case cdm::kSessionError: return GMPGenericErr;
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case cdm::kDecryptError: return GMPCryptoErr;
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case cdm::kDecodeError: return GMPDecodeErr;
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case cdm::kDeferredInitialization: return GMPGenericErr;
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default: return GMPGenericErr;
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}
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}
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void InitInputBuffer(const GMPEncryptedBufferMetadata* aCrypto,
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int64_t aTimestamp,
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const uint8_t* aData,
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size_t aDataSize,
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cdm::InputBuffer &aInputBuffer,
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nsTArray<cdm::SubsampleEntry> &aSubsamples)
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{
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if (aCrypto) {
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aInputBuffer.key_id = aCrypto->KeyId();
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aInputBuffer.key_id_size = aCrypto->KeyIdSize();
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aInputBuffer.iv = aCrypto->IV();
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aInputBuffer.iv_size = aCrypto->IVSize();
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aInputBuffer.num_subsamples = aCrypto->NumSubsamples();
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aSubsamples.SetCapacity(aInputBuffer.num_subsamples);
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const uint16_t* clear = aCrypto->ClearBytes();
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const uint32_t* cipher = aCrypto->CipherBytes();
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for (size_t i = 0; i < aCrypto->NumSubsamples(); i++) {
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aSubsamples.AppendElement(cdm::SubsampleEntry(clear[i], cipher[i]));
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}
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}
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aInputBuffer.data = aData;
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aInputBuffer.data_size = aDataSize;
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aInputBuffer.subsamples = aSubsamples.Elements();
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aInputBuffer.timestamp = aTimestamp;
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}
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CDMWrapper::CDMWrapper(cdm::ContentDecryptionModule_8* aCDM,
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WidevineDecryptor* aDecryptor)
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: mCDM(aCDM)
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, mDecryptor(aDecryptor)
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{
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MOZ_ASSERT(mCDM);
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}
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CDMWrapper::~CDMWrapper()
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{
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Log("CDMWrapper destroying CDM=%p", mCDM);
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mCDM->Destroy();
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mCDM = nullptr;
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}
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} // namespace mozilla
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