diff options
Diffstat (limited to 'media/gmp-clearkey/0.1/AnnexB.cpp')
-rw-r--r-- | media/gmp-clearkey/0.1/AnnexB.cpp | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/media/gmp-clearkey/0.1/AnnexB.cpp b/media/gmp-clearkey/0.1/AnnexB.cpp deleted file mode 100644 index 952936deb2..0000000000 --- a/media/gmp-clearkey/0.1/AnnexB.cpp +++ /dev/null @@ -1,79 +0,0 @@ -/* - * Copyright 2015, Mozilla Foundation and contributors - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "AnnexB.h" -#include "BigEndian.h" - -#include <cstring> - -using mozilla::BigEndian; - -static const uint8_t kAnnexBDelimiter[] = { 0, 0, 0, 1 }; - -/* static */ void -AnnexB::ConvertFrameInPlace(std::vector<uint8_t>& aBuffer) -{ - for (size_t i = 0; i < aBuffer.size() - 4 - sizeof(kAnnexBDelimiter) + 1; ) { - uint32_t nalLen = BigEndian::readUint32(&aBuffer[i]); - memcpy(&aBuffer[i], kAnnexBDelimiter, sizeof(kAnnexBDelimiter)); - i += nalLen + 4; - } -} - -static void -ConvertParamSetToAnnexB(std::vector<uint8_t>::const_iterator& aIter, - size_t aCount, - std::vector<uint8_t>& aOutAnnexB) -{ - for (size_t i = 0; i < aCount; i++) { - aOutAnnexB.insert(aOutAnnexB.end(), kAnnexBDelimiter, - kAnnexBDelimiter + sizeof(kAnnexBDelimiter)); - - uint16_t len = BigEndian::readUint16(&*aIter); aIter += 2; - aOutAnnexB.insert(aOutAnnexB.end(), aIter, aIter + len); aIter += len; - } -} - -/* static */ void -AnnexB::ConvertConfig(const std::vector<uint8_t>& aBuffer, - std::vector<uint8_t>& aOutAnnexB) -{ - // Skip past irrelevant headers - auto it = aBuffer.begin() + 5; - - if (it >= aBuffer.end()) { - return; - } - - size_t count = *(it++) & 31; - - // Check that we have enough bytes for the Annex B conversion - // and the next size field. Bail if not. - if (it + count * 2 >= aBuffer.end()) { - return; - } - - ConvertParamSetToAnnexB(it, count, aOutAnnexB); - - // Check that we have enough bytes for the Annex B conversion. - count = *(it++); - if (it + count * 2 > aBuffer.end()) { - aOutAnnexB.clear(); - return; - } - - ConvertParamSetToAnnexB(it, count, aOutAnnexB); -} |