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Diffstat (limited to 'debian/mp4v2/mp4v2-2.0.0~dfsg0/src/ocidescriptors.cpp')
-rw-r--r-- | debian/mp4v2/mp4v2-2.0.0~dfsg0/src/ocidescriptors.cpp | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/debian/mp4v2/mp4v2-2.0.0~dfsg0/src/ocidescriptors.cpp b/debian/mp4v2/mp4v2-2.0.0~dfsg0/src/ocidescriptors.cpp new file mode 100644 index 00000000..0f78850d --- /dev/null +++ b/debian/mp4v2/mp4v2-2.0.0~dfsg0/src/ocidescriptors.cpp @@ -0,0 +1,320 @@ +/* + * 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 { + +/////////////////////////////////////////////////////////////////////////////// + +MP4ContentClassDescriptor::MP4ContentClassDescriptor(MP4Atom& parentAtom) + : MP4Descriptor(parentAtom) +{ + AddProperty( /* 0 */ + new MP4Integer32Property(parentAtom, "classificationEntity")); + AddProperty( /* 1 */ + new MP4Integer16Property(parentAtom, "classificationTable")); + AddProperty( /* 2 */ + new MP4BytesProperty(parentAtom, "contentClassificationData")); +} + +void MP4ContentClassDescriptor::Read(MP4File& file) +{ + ReadHeader(file); + + /* byte properties need to know how long they are before reading */ + ((MP4BytesProperty*)m_pProperties[2])->SetValueSize(m_size - 6); + + ReadProperties(file); +} + +MP4KeywordDescriptor::MP4KeywordDescriptor(MP4Atom& parentAtom) + : MP4Descriptor(parentAtom) +{ + AddProperty( /* 0 */ + new MP4BytesProperty(parentAtom, "languageCode", 3)); + AddProperty( /* 1 */ + new MP4BitfieldProperty(parentAtom, "isUTF8String", 1)); + AddProperty( /* 2 */ + new MP4BitfieldProperty(parentAtom, "reserved", 7)); + MP4Integer8Property* pCount = + new MP4Integer8Property(parentAtom, "keywordCount"); + AddProperty(pCount); /* 3 */ + + MP4TableProperty* pTable = new MP4TableProperty(parentAtom, "keywords", pCount); + AddProperty(pTable); /* 4 */ + + pTable->AddProperty( /* 4, 0 */ + new MP4StringProperty(pTable->GetParentAtom(), "string", Counted)); + + SetReadMutate(2); +} + +void MP4KeywordDescriptor::Mutate() +{ + bool utf8Flag = ((MP4BitfieldProperty*)m_pProperties[1])->GetValue(); + MP4Property* pProperty = + ((MP4TableProperty*)m_pProperties[4])->GetProperty(0); + ASSERT(pProperty); + ((MP4StringProperty*)pProperty)->SetUnicode(!utf8Flag); +} + +MP4RatingDescriptor::MP4RatingDescriptor(MP4Atom& parentAtom) + : MP4Descriptor(parentAtom) +{ + AddProperty( /* 0 */ + new MP4Integer32Property(parentAtom, "ratingEntity")); + AddProperty( /* 1 */ + new MP4Integer16Property(parentAtom, "ratingCriteria")); + AddProperty( /* 2 */ + new MP4BytesProperty(parentAtom, "ratingInfo")); +} + +void MP4RatingDescriptor::Read(MP4File& file) +{ + ReadHeader(file); + + /* byte properties need to know how long they are before reading */ + ((MP4BytesProperty*)m_pProperties[2])->SetValueSize(m_size - 6); + + ReadProperties(file); +} + +MP4LanguageDescriptor::MP4LanguageDescriptor(MP4Atom& parentAtom) + : MP4Descriptor(parentAtom) +{ + AddProperty( /* 0 */ + new MP4BytesProperty(parentAtom, "languageCode", 3)); +} + +MP4ShortTextDescriptor::MP4ShortTextDescriptor(MP4Atom& parentAtom) + : MP4Descriptor(parentAtom) +{ + AddProperty( /* 0 */ + new MP4BytesProperty(parentAtom, "languageCode", 3)); + AddProperty( /* 1 */ + new MP4BitfieldProperty(parentAtom, "isUTF8String", 1)); + AddProperty( /* 2 */ + new MP4BitfieldProperty(parentAtom, "reserved", 7)); + AddProperty( /* 3 */ + new MP4StringProperty(parentAtom, "eventName", Counted)); + AddProperty( /* 4 */ + new MP4StringProperty(parentAtom, "eventText", Counted)); + + SetReadMutate(2); +} + +void MP4ShortTextDescriptor::Mutate() +{ + bool utf8Flag = ((MP4BitfieldProperty*)m_pProperties[1])->GetValue(); + ((MP4StringProperty*)m_pProperties[3])->SetUnicode(!utf8Flag); + ((MP4StringProperty*)m_pProperties[4])->SetUnicode(!utf8Flag); +} + +MP4ExpandedTextDescriptor::MP4ExpandedTextDescriptor(MP4Atom& parentAtom) + : MP4Descriptor(parentAtom) +{ + AddProperty( /* 0 */ + new MP4BytesProperty(parentAtom, "languageCode", 3)); + AddProperty( /* 1 */ + new MP4BitfieldProperty(parentAtom, "isUTF8String", 1)); + AddProperty( /* 2 */ + new MP4BitfieldProperty(parentAtom, "reserved", 7)); + MP4Integer8Property* pCount = + new MP4Integer8Property(parentAtom, "itemCount"); + AddProperty(pCount); /* 3 */ + + MP4TableProperty* pTable = new MP4TableProperty(parentAtom, "items", pCount); + AddProperty(pTable); /* 4 */ + + pTable->AddProperty( /* Table 0 */ + new MP4StringProperty(pTable->GetParentAtom(), "itemDescription", Counted)); + pTable->AddProperty( /* Table 1 */ + new MP4StringProperty(pTable->GetParentAtom(), "itemText", Counted)); + + AddProperty( /* 5 */ + new MP4StringProperty(parentAtom, "nonItemText")); + ((MP4StringProperty*)m_pProperties[5])->SetExpandedCountedFormat(true); + + SetReadMutate(2); +} + +void MP4ExpandedTextDescriptor::Mutate() +{ + bool utf8Flag = ((MP4BitfieldProperty*)m_pProperties[1])->GetValue(); + + MP4Property* pProperty = + ((MP4TableProperty*)m_pProperties[4])->GetProperty(0); + ASSERT(pProperty); + ((MP4StringProperty*)pProperty)->SetUnicode(!utf8Flag); + + pProperty = ((MP4TableProperty*)m_pProperties[4])->GetProperty(1); + ASSERT(pProperty); + ((MP4StringProperty*)pProperty)->SetUnicode(!utf8Flag); + + ((MP4StringProperty*)m_pProperties[5])->SetUnicode(!utf8Flag); +} + +class MP4CreatorTableProperty : public MP4TableProperty { +public: + MP4CreatorTableProperty(MP4Atom& parentAtom, const char* name, MP4Integer8Property* pCountProperty) : + MP4TableProperty(parentAtom, name, pCountProperty) { + }; +protected: + void ReadEntry(MP4File& file, uint32_t index); + void WriteEntry(MP4File& file, uint32_t index); +private: + MP4CreatorTableProperty(); + MP4CreatorTableProperty ( const MP4CreatorTableProperty &src ); + MP4CreatorTableProperty &operator= ( const MP4CreatorTableProperty &src ); +}; + +MP4CreatorDescriptor::MP4CreatorDescriptor(MP4Atom& parentAtom, uint8_t tag) + : MP4Descriptor(parentAtom, tag) +{ + MP4Integer8Property* pCount = + new MP4Integer8Property(parentAtom, "creatorCount"); + AddProperty(pCount); /* 0 */ + + MP4TableProperty* pTable = new MP4CreatorTableProperty(parentAtom, "creators", pCount); + AddProperty(pTable); /* 1 */ + + pTable->AddProperty( /* Table 0 */ + new MP4BytesProperty(pTable->GetParentAtom(), "languageCode", 3, 3)); + pTable->AddProperty( /* Table 1 */ + new MP4BitfieldProperty(pTable->GetParentAtom(), "isUTF8String", 1)); + pTable->AddProperty( /* Table 2 */ + new MP4BitfieldProperty(pTable->GetParentAtom(), "reserved", 7)); + pTable->AddProperty( /* Table 3 */ + new MP4StringProperty(pTable->GetParentAtom(), "name", Counted)); +} + +void MP4CreatorTableProperty::ReadEntry(MP4File& file, uint32_t index) +{ + m_pProperties[0]->Read(file, index); + m_pProperties[1]->Read(file, index); + + bool utf8Flag = ((MP4BitfieldProperty*)m_pProperties[1])->GetValue(index); + ((MP4StringProperty*)m_pProperties[3])->SetUnicode(!utf8Flag); + + m_pProperties[2]->Read(file, index); + m_pProperties[3]->Read(file, index); +} + +void MP4CreatorTableProperty::WriteEntry(MP4File& file, uint32_t index) +{ + bool utf8Flag = ((MP4BitfieldProperty*)m_pProperties[1])->GetValue(index); + ((MP4StringProperty*)m_pProperties[3])->SetUnicode(!utf8Flag); + + MP4TableProperty::WriteEntry(file, index); +} + +MP4CreationDescriptor::MP4CreationDescriptor(MP4Atom& parentAtom, uint8_t tag) + : MP4Descriptor(parentAtom, tag) +{ + AddProperty( /* 0 */ + new MP4BitfieldProperty(parentAtom, "contentCreationDate", 40)); +} + +MP4SmpteCameraDescriptor::MP4SmpteCameraDescriptor(MP4Atom& parentAtom) + : MP4Descriptor(parentAtom) +{ + MP4Integer8Property* pCount = + new MP4Integer8Property(parentAtom, "parameterCount"); + AddProperty(pCount); + + MP4TableProperty* pTable = new MP4TableProperty(parentAtom, "parameters", pCount); + AddProperty(pTable); + + pTable->AddProperty( + new MP4Integer8Property(parentAtom, "id")); + pTable->AddProperty( + new MP4Integer32Property(parentAtom, "value")); +} + +MP4UnknownOCIDescriptor::MP4UnknownOCIDescriptor(MP4Atom& parentAtom) + : MP4Descriptor(parentAtom) +{ + AddProperty( /* 0 */ + new MP4BytesProperty(parentAtom, "data")); +} + +void MP4UnknownOCIDescriptor::Read(MP4File& file) +{ + ReadHeader(file); + + /* byte properties need to know how long they are before reading */ + ((MP4BytesProperty*)m_pProperties[0])->SetValueSize(m_size); + + ReadProperties(file); +} + +MP4Descriptor* CreateOCIDescriptor(MP4Atom& parentAtom, uint8_t tag) +{ + MP4Descriptor* pDescriptor = NULL; + + switch (tag) { + case MP4ContentClassDescrTag: + pDescriptor = new MP4ContentClassDescriptor(parentAtom); + break; + case MP4KeywordDescrTag: + pDescriptor = new MP4KeywordDescriptor(parentAtom); + break; + case MP4RatingDescrTag: + pDescriptor = new MP4RatingDescriptor(parentAtom); + break; + case MP4LanguageDescrTag: + pDescriptor = new MP4LanguageDescriptor(parentAtom); + break; + case MP4ShortTextDescrTag: + pDescriptor = new MP4ShortTextDescriptor(parentAtom); + break; + case MP4ExpandedTextDescrTag: + pDescriptor = new MP4ExpandedTextDescriptor(parentAtom); + break; + case MP4ContentCreatorDescrTag: + case MP4OCICreatorDescrTag: + pDescriptor = new MP4CreatorDescriptor(parentAtom, tag); + break; + case MP4ContentCreationDescrTag: + case MP4OCICreationDescrTag: + pDescriptor = new MP4CreationDescriptor(parentAtom, tag); + break; + case MP4SmpteCameraDescrTag: + pDescriptor = new MP4SmpteCameraDescriptor(parentAtom); + break; + } + + if (pDescriptor == NULL) { + if (tag >= MP4OCIDescrTagsStart && tag <= MP4OCIDescrTagsEnd) { + pDescriptor = new MP4UnknownOCIDescriptor(parentAtom); + pDescriptor->SetTag(tag); + } + } + + return pDescriptor; +} + +/////////////////////////////////////////////////////////////////////////////// + +} +} // namespace mp4v2::impl |