| /* |
| * 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 dmackie@cisco.com |
| */ |
| |
| #include "src/impl.h" |
| |
| namespace mp4v2 { |
| namespace impl { |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| MP4ContentClassDescriptor::MP4ContentClassDescriptor() |
| : MP4Descriptor() |
| { |
| AddProperty( /* 0 */ |
| new MP4Integer32Property("classificationEntity")); |
| AddProperty( /* 1 */ |
| new MP4Integer16Property("classificationTable")); |
| AddProperty( /* 2 */ |
| new MP4BytesProperty("contentClassificationData")); |
| } |
| |
| void MP4ContentClassDescriptor::Read(MP4File* pFile) |
| { |
| ReadHeader(pFile); |
| |
| /* byte properties need to know how long they are before reading */ |
| ((MP4BytesProperty*)m_pProperties[2])->SetValueSize(m_size - 6); |
| |
| ReadProperties(pFile); |
| } |
| |
| MP4KeywordDescriptor::MP4KeywordDescriptor() |
| : MP4Descriptor() |
| { |
| AddProperty( /* 0 */ |
| new MP4BytesProperty("languageCode", 3)); |
| AddProperty( /* 1 */ |
| new MP4BitfieldProperty("isUTF8String", 1)); |
| AddProperty( /* 2 */ |
| new MP4BitfieldProperty("reserved", 7)); |
| MP4Integer8Property* pCount = |
| new MP4Integer8Property("keywordCount"); |
| AddProperty(pCount); /* 3 */ |
| |
| MP4TableProperty* pTable = new MP4TableProperty("keywords", pCount); |
| AddProperty(pTable); /* 4 */ |
| |
| pTable->AddProperty( /* 4, 0 */ |
| new MP4StringProperty("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() |
| : MP4Descriptor() |
| { |
| AddProperty( /* 0 */ |
| new MP4Integer32Property("ratingEntity")); |
| AddProperty( /* 1 */ |
| new MP4Integer16Property("ratingCriteria")); |
| AddProperty( /* 2 */ |
| new MP4BytesProperty("ratingInfo")); |
| } |
| |
| void MP4RatingDescriptor::Read(MP4File* pFile) |
| { |
| ReadHeader(pFile); |
| |
| /* byte properties need to know how long they are before reading */ |
| ((MP4BytesProperty*)m_pProperties[2])->SetValueSize(m_size - 6); |
| |
| ReadProperties(pFile); |
| } |
| |
| MP4LanguageDescriptor::MP4LanguageDescriptor() |
| : MP4Descriptor() |
| { |
| AddProperty( /* 0 */ |
| new MP4BytesProperty("languageCode", 3)); |
| } |
| |
| MP4ShortTextDescriptor::MP4ShortTextDescriptor() |
| : MP4Descriptor() |
| { |
| AddProperty( /* 0 */ |
| new MP4BytesProperty("languageCode", 3)); |
| AddProperty( /* 1 */ |
| new MP4BitfieldProperty("isUTF8String", 1)); |
| AddProperty( /* 2 */ |
| new MP4BitfieldProperty("reserved", 7)); |
| AddProperty( /* 3 */ |
| new MP4StringProperty("eventName", Counted)); |
| AddProperty( /* 4 */ |
| new MP4StringProperty("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() |
| : MP4Descriptor() |
| { |
| AddProperty( /* 0 */ |
| new MP4BytesProperty("languageCode", 3)); |
| AddProperty( /* 1 */ |
| new MP4BitfieldProperty("isUTF8String", 1)); |
| AddProperty( /* 2 */ |
| new MP4BitfieldProperty("reserved", 7)); |
| MP4Integer8Property* pCount = |
| new MP4Integer8Property("itemCount"); |
| AddProperty(pCount); /* 3 */ |
| |
| MP4TableProperty* pTable = new MP4TableProperty("items", pCount); |
| AddProperty(pTable); /* 4 */ |
| |
| pTable->AddProperty( /* Table 0 */ |
| new MP4StringProperty("itemDescription", Counted)); |
| pTable->AddProperty( /* Table 1 */ |
| new MP4StringProperty("itemText", Counted)); |
| |
| AddProperty( /* 5 */ |
| new MP4StringProperty("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(const char* name, MP4Integer8Property* pCountProperty) : |
| MP4TableProperty(name, pCountProperty) { |
| }; |
| protected: |
| void ReadEntry(MP4File* pFile, uint32_t index); |
| void WriteEntry(MP4File* pFile, uint32_t index); |
| }; |
| |
| MP4CreatorDescriptor::MP4CreatorDescriptor(uint8_t tag) |
| : MP4Descriptor(tag) |
| { |
| MP4Integer8Property* pCount = |
| new MP4Integer8Property("creatorCount"); |
| AddProperty(pCount); /* 0 */ |
| |
| MP4TableProperty* pTable = new MP4CreatorTableProperty("creators", pCount); |
| AddProperty(pTable); /* 1 */ |
| |
| pTable->AddProperty( /* Table 0 */ |
| new MP4BytesProperty("languageCode", 3, 3)); |
| pTable->AddProperty( /* Table 1 */ |
| new MP4BitfieldProperty("isUTF8String", 1)); |
| pTable->AddProperty( /* Table 2 */ |
| new MP4BitfieldProperty("reserved", 7)); |
| pTable->AddProperty( /* Table 3 */ |
| new MP4StringProperty("name", Counted)); |
| } |
| |
| void MP4CreatorTableProperty::ReadEntry(MP4File* pFile, uint32_t index) |
| { |
| m_pProperties[0]->Read(pFile, index); |
| m_pProperties[1]->Read(pFile, index); |
| |
| bool utf8Flag = ((MP4BitfieldProperty*)m_pProperties[1])->GetValue(index); |
| ((MP4StringProperty*)m_pProperties[3])->SetUnicode(!utf8Flag); |
| |
| m_pProperties[2]->Read(pFile, index); |
| m_pProperties[3]->Read(pFile, index); |
| } |
| |
| void MP4CreatorTableProperty::WriteEntry(MP4File* pFile, uint32_t index) |
| { |
| bool utf8Flag = ((MP4BitfieldProperty*)m_pProperties[1])->GetValue(index); |
| ((MP4StringProperty*)m_pProperties[3])->SetUnicode(!utf8Flag); |
| |
| MP4TableProperty::WriteEntry(pFile, index); |
| } |
| |
| MP4CreationDescriptor::MP4CreationDescriptor(uint8_t tag) |
| : MP4Descriptor(tag) |
| { |
| AddProperty( /* 0 */ |
| new MP4BitfieldProperty("contentCreationDate", 40)); |
| } |
| |
| MP4SmpteCameraDescriptor::MP4SmpteCameraDescriptor() |
| : MP4Descriptor() |
| { |
| MP4Integer8Property* pCount = |
| new MP4Integer8Property("parameterCount"); |
| AddProperty(pCount); |
| |
| MP4TableProperty* pTable = new MP4TableProperty("parameters", pCount); |
| AddProperty(pTable); |
| |
| pTable->AddProperty( |
| new MP4Integer8Property("id")); |
| pTable->AddProperty( |
| new MP4Integer32Property("value")); |
| } |
| |
| MP4UnknownOCIDescriptor::MP4UnknownOCIDescriptor() |
| : MP4Descriptor() |
| { |
| AddProperty( /* 0 */ |
| new MP4BytesProperty("data")); |
| } |
| |
| void MP4UnknownOCIDescriptor::Read(MP4File* pFile) |
| { |
| ReadHeader(pFile); |
| |
| /* byte properties need to know how long they are before reading */ |
| ((MP4BytesProperty*)m_pProperties[0])->SetValueSize(m_size); |
| |
| ReadProperties(pFile); |
| } |
| |
| MP4Descriptor* CreateOCIDescriptor(uint8_t tag) |
| { |
| MP4Descriptor* pDescriptor = NULL; |
| |
| switch (tag) { |
| case MP4ContentClassDescrTag: |
| pDescriptor = new MP4ContentClassDescriptor(); |
| break; |
| case MP4KeywordDescrTag: |
| pDescriptor = new MP4KeywordDescriptor(); |
| break; |
| case MP4RatingDescrTag: |
| pDescriptor = new MP4RatingDescriptor(); |
| break; |
| case MP4LanguageDescrTag: |
| pDescriptor = new MP4LanguageDescriptor(); |
| break; |
| case MP4ShortTextDescrTag: |
| pDescriptor = new MP4ShortTextDescriptor(); |
| break; |
| case MP4ExpandedTextDescrTag: |
| pDescriptor = new MP4ExpandedTextDescriptor(); |
| break; |
| case MP4ContentCreatorDescrTag: |
| case MP4OCICreatorDescrTag: |
| pDescriptor = new MP4CreatorDescriptor(tag); |
| break; |
| case MP4ContentCreationDescrTag: |
| case MP4OCICreationDescrTag: |
| pDescriptor = new MP4CreationDescriptor(tag); |
| break; |
| case MP4SmpteCameraDescrTag: |
| pDescriptor = new MP4SmpteCameraDescriptor(); |
| break; |
| } |
| |
| if (pDescriptor == NULL) { |
| if (tag >= MP4OCIDescrTagsStart && tag <= MP4OCIDescrTagsEnd) { |
| pDescriptor = new MP4UnknownOCIDescriptor(); |
| pDescriptor->SetTag(tag); |
| } |
| } |
| |
| return pDescriptor; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| } |
| } // namespace mp4v2::impl |