79 lines
2.3 KiB
C++
79 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 "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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#ifdef ENABLE_WIDEVINE_LOG
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void
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Log(const char* aFormat, ...)
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{
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va_list ap;
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va_start(ap, aFormat);
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const size_t len = 1024;
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char buf[len];
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vsnprintf(buf, len, aFormat, ap);
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va_end(ap);
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if (getenv("GMP_LOG_FILE")) {
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FILE* f = fopen(getenv("GMP_LOG_FILE"), "a");
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if (f) {
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fprintf(f, "%s\n", buf);
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fflush(f);
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fclose(f);
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f = nullptr;
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}
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} else {
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printf("LOG: %s\n", buf);
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}
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}
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#endif // ENABLE_WIDEVINE_LOG
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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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} // namespace mozilla
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