diff options
Diffstat (limited to 'debian/mp4v2/mp4v2-2.0.0~dfsg0/src/mp4descriptor.cpp')
| -rw-r--r-- | debian/mp4v2/mp4v2-2.0.0~dfsg0/src/mp4descriptor.cpp | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/debian/mp4v2/mp4v2-2.0.0~dfsg0/src/mp4descriptor.cpp b/debian/mp4v2/mp4v2-2.0.0~dfsg0/src/mp4descriptor.cpp deleted file mode 100644 index 202deb15..00000000 --- a/debian/mp4v2/mp4v2-2.0.0~dfsg0/src/mp4descriptor.cpp +++ /dev/null @@ -1,215 +0,0 @@ -/* - * The contents of this file are subject to the Mozilla Public - * License Version 1.1 (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.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS - * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or - * implied. See the License for the specific language governing - * rights and limitations under the License. - * - * The Original Code is MPEG4IP. - * - * The Initial Developer of the Original Code is Cisco Systems Inc. - * Portions created by Cisco Systems Inc. are - * Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved. - * - * Contributor(s): - * Dave Mackie [email protected] - */ - -#include "src/impl.h" - -namespace mp4v2 { -namespace impl { - -/////////////////////////////////////////////////////////////////////////////// - -MP4Descriptor::MP4Descriptor(MP4Atom& parentAtom, uint8_t tag) - : m_parentAtom(parentAtom) -{ - m_tag = tag; - m_start = 0; - m_size = 0; - m_readMutatePoint = 0; -} - -MP4Descriptor::~MP4Descriptor() -{ - for (uint32_t i = 0; i < m_pProperties.Size(); i++) { - delete m_pProperties[i]; - } -} - -void MP4Descriptor::AddProperty(MP4Property* pProperty) -{ - ASSERT(pProperty); - m_pProperties.Add(pProperty); -} - -bool MP4Descriptor::FindContainedProperty(const char *name, - MP4Property** ppProperty, uint32_t* pIndex) -{ - uint32_t numProperties = m_pProperties.Size(); - - for (uint32_t i = 0; i < numProperties; i++) { - if (m_pProperties[i]->FindProperty(name, ppProperty, pIndex)) { - return true; - } - } - return false; -} - -void MP4Descriptor::Generate() -{ - // generate properties - for (uint32_t i = 0; i < m_pProperties.Size(); i++) { - m_pProperties[i]->Generate(); - } -} - -void MP4Descriptor::Read(MP4File& file) -{ - ReadHeader(file); - - ReadProperties(file, 0, m_readMutatePoint); - - Mutate(); - - ReadProperties(file, m_readMutatePoint); - - // flush any leftover read bits - file.FlushReadBits(); -} - -void MP4Descriptor::ReadHeader(MP4File& file) -{ - log.verbose1f("\"%s\": ReadDescriptor: pos = 0x%" PRIx64, file.GetFilename().c_str(), - file.GetPosition()); - - // read tag and length - uint8_t tag = file.ReadUInt8(); - if (m_tag) { - ASSERT(tag == m_tag); - } else { - m_tag = tag; - } - m_size = file.ReadMpegLength(); - m_start = file.GetPosition(); - - log.verbose1f("\"%s\": ReadDescriptor: tag 0x%02x data size %u (0x%x)", - file.GetFilename().c_str(), m_tag, m_size, m_size); -} - -void MP4Descriptor::ReadProperties(MP4File& file, - uint32_t propStartIndex, uint32_t propCount) -{ - uint32_t numProperties = min(propCount, - m_pProperties.Size() - propStartIndex); - - for (uint32_t i = propStartIndex; - i < propStartIndex + numProperties; i++) { - - MP4Property* pProperty = m_pProperties[i]; - - int32_t remaining = m_size - (file.GetPosition() - m_start); - - if (pProperty->GetType() == DescriptorProperty) { - if (remaining > 0) { - // place a limit on how far this sub-descriptor looks - ((MP4DescriptorProperty*)pProperty)->SetSizeLimit(remaining); - pProperty->Read(file); - } // else do nothing, empty descriptor - } else { - // non-descriptor property - if (remaining >= 0) { - pProperty->Read(file); - - MP4LogLevel thisVerbosity = - (pProperty->GetType() == TableProperty) ? - MP4_LOG_VERBOSE2 : MP4_LOG_VERBOSE1; - - if (log.verbosity >= thisVerbosity) { - // log.printf(thisVerbosity,"Read: "); - pProperty->Dump(0, true); - } - } else { - log.errorf("%s: \"%s\": Overran descriptor, tag %u data size %u property %u", - __FUNCTION__, file.GetFilename().c_str(), m_tag, m_size, i); - throw new Exception("overran descriptor",__FILE__, __LINE__, __FUNCTION__); - } - } - } -} - -void MP4Descriptor::Write(MP4File& file) -{ - // call virtual function to adapt properties before writing - Mutate(); - - uint32_t numProperties = m_pProperties.Size(); - - if (numProperties == 0) { - WARNING(numProperties == 0); - return; - } - - // write tag and length placeholder - file.WriteUInt8(m_tag); - uint64_t lengthPos = file.GetPosition(); - file.WriteMpegLength(0); - uint64_t startPos = file.GetPosition(); - - for (uint32_t i = 0; i < numProperties; i++) { - m_pProperties[i]->Write(file); - } - - // align with byte boundary (rarely necessary) - file.PadWriteBits(); - - // go back and write correct length - uint64_t endPos = file.GetPosition(); - file.SetPosition(lengthPos); - file.WriteMpegLength(endPos - startPos); - file.SetPosition(endPos); -} - -void MP4Descriptor::WriteToMemory(MP4File& file, - uint8_t** ppBytes, uint64_t* pNumBytes) -{ - // use memory buffer to save descriptor in memory - // instead of going directly to disk - - file.EnableMemoryBuffer(); - - Write(file); - - file.DisableMemoryBuffer(ppBytes, pNumBytes); -} - -void MP4Descriptor::Dump(uint8_t indent, bool dumpImplicits) -{ - // call virtual function to adapt properties before dumping - Mutate(); - - uint32_t numProperties = m_pProperties.Size(); - - if (numProperties == 0) { - WARNING(numProperties == 0); - return; - } - for (uint32_t i = 0; i < numProperties; i++) { - m_pProperties[i]->Dump(indent, dumpImplicits); - } -} - -uint8_t MP4Descriptor::GetDepth() -{ - return m_parentAtom.GetDepth(); -} - -/////////////////////////////////////////////////////////////////////////////// - -} -} // namespace mp4v2::impl |