| /* |
| * 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 |
| * Kona Blend kona8lend@@gmail.com |
| */ |
| |
| #include "src/impl.h" |
| |
| namespace mp4v2 { namespace impl { |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| MP4Property::MP4Property(const char* name) |
| { |
| m_name = name; |
| m_pParentAtom = NULL; |
| m_readOnly = false; |
| m_implicit = false; |
| } |
| |
| bool MP4Property::FindProperty(const char* name, |
| MP4Property** ppProperty, uint32_t* pIndex) |
| { |
| if (name == NULL) { |
| return false; |
| } |
| |
| if (!strcasecmp(m_name, name)) { |
| if (m_pParentAtom) { |
| VERBOSE_FIND(m_pParentAtom->GetFile()->GetVerbosity(), |
| printf("FindProperty: matched %s\n", name)); |
| } |
| |
| *ppProperty = this; |
| return true; |
| } |
| return false; |
| } |
| |
| // Integer Property |
| |
| uint64_t MP4IntegerProperty::GetValue(uint32_t index) |
| { |
| switch (this->GetType()) { |
| case Integer8Property: |
| return ((MP4Integer8Property*)this)->GetValue(index); |
| case Integer16Property: |
| return ((MP4Integer16Property*)this)->GetValue(index); |
| case Integer24Property: |
| return ((MP4Integer24Property*)this)->GetValue(index); |
| case Integer32Property: |
| return ((MP4Integer32Property*)this)->GetValue(index); |
| case Integer64Property: |
| return ((MP4Integer64Property*)this)->GetValue(index); |
| default: |
| ASSERT(false); |
| } |
| return (0); |
| } |
| |
| void MP4IntegerProperty::SetValue(uint64_t value, uint32_t index) |
| { |
| switch (this->GetType()) { |
| case Integer8Property: |
| ((MP4Integer8Property*)this)->SetValue(value, index); |
| break; |
| case Integer16Property: |
| ((MP4Integer16Property*)this)->SetValue(value, index); |
| break; |
| case Integer24Property: |
| ((MP4Integer24Property*)this)->SetValue(value, index); |
| break; |
| case Integer32Property: |
| ((MP4Integer32Property*)this)->SetValue(value, index); |
| break; |
| case Integer64Property: |
| ((MP4Integer64Property*)this)->SetValue(value, index); |
| break; |
| default: |
| ASSERT(false); |
| } |
| } |
| |
| void MP4IntegerProperty::InsertValue(uint64_t value, uint32_t index) |
| { |
| switch (this->GetType()) { |
| case Integer8Property: |
| ((MP4Integer8Property*)this)->InsertValue(value, index); |
| break; |
| case Integer16Property: |
| ((MP4Integer16Property*)this)->InsertValue(value, index); |
| break; |
| case Integer24Property: |
| ((MP4Integer24Property*)this)->InsertValue(value, index); |
| break; |
| case Integer32Property: |
| ((MP4Integer32Property*)this)->InsertValue(value, index); |
| break; |
| case Integer64Property: |
| ((MP4Integer64Property*)this)->InsertValue(value, index); |
| break; |
| default: |
| ASSERT(false); |
| } |
| } |
| |
| void MP4IntegerProperty::DeleteValue(uint32_t index) |
| { |
| switch (this->GetType()) { |
| case Integer8Property: |
| ((MP4Integer8Property*)this)->DeleteValue(index); |
| break; |
| case Integer16Property: |
| ((MP4Integer16Property*)this)->DeleteValue(index); |
| break; |
| case Integer24Property: |
| ((MP4Integer24Property*)this)->DeleteValue(index); |
| break; |
| case Integer32Property: |
| ((MP4Integer32Property*)this)->DeleteValue(index); |
| break; |
| case Integer64Property: |
| ((MP4Integer64Property*)this)->DeleteValue(index); |
| break; |
| default: |
| ASSERT(false); |
| } |
| } |
| |
| void MP4IntegerProperty::IncrementValue(int32_t increment, uint32_t index) |
| { |
| SetValue(GetValue() + increment); |
| } |
| |
| void MP4Integer8Property::Dump(FILE* pFile, uint8_t indent, |
| bool dumpImplicits, uint32_t index) |
| { |
| if (m_implicit && !dumpImplicits) { |
| return; |
| } |
| Indent(pFile, indent); |
| if (index != 0) |
| fprintf(pFile, "%s[%u] = %u (0x%02x)\n", |
| m_name, index, m_values[index], m_values[index]); |
| else |
| fprintf(pFile, "%s = %u (0x%02x)\n", |
| m_name, m_values[index], m_values[index]); |
| fflush(pFile); |
| } |
| |
| void MP4Integer16Property::Dump(FILE* pFile, uint8_t indent, |
| bool dumpImplicits, uint32_t index) |
| { |
| if (m_implicit && !dumpImplicits) { |
| return; |
| } |
| Indent(pFile, indent); |
| if (index != 0) |
| fprintf(pFile, "%s[%u] = %u (0x%04x)\n", |
| m_name, index, m_values[index], m_values[index]); |
| else |
| fprintf(pFile, "%s = %u (0x%04x)\n", |
| m_name, m_values[index], m_values[index]); |
| fflush(pFile); |
| } |
| |
| void MP4Integer24Property::Dump(FILE* pFile, uint8_t indent, |
| bool dumpImplicits, uint32_t index) |
| { |
| if (m_implicit && !dumpImplicits) { |
| return; |
| } |
| Indent(pFile, indent); |
| if (index != 0) |
| fprintf(pFile, "%s[%u] = %u (0x%06x)\n", |
| m_name, index, m_values[index], m_values[index]); |
| else |
| fprintf(pFile, "%s = %u (0x%06x)\n", |
| m_name, m_values[index], m_values[index]); |
| fflush(pFile); |
| } |
| |
| void MP4Integer32Property::Dump(FILE* pFile, uint8_t indent, |
| bool dumpImplicits, uint32_t index) |
| { |
| if (m_implicit && !dumpImplicits) { |
| return; |
| } |
| Indent(pFile, indent); |
| if (index != 0) |
| fprintf(pFile, "%s[%u] = %u (0x%08x)\n", |
| m_name, index, m_values[index], m_values[index]); |
| else |
| fprintf(pFile, "%s = %u (0x%08x)\n", |
| m_name, m_values[index], m_values[index]); |
| fflush(pFile); |
| } |
| |
| void MP4Integer64Property::Dump(FILE* pFile, uint8_t indent, |
| bool dumpImplicits, uint32_t index) |
| { |
| if (m_implicit && !dumpImplicits) { |
| return; |
| } |
| Indent(pFile, indent); |
| if (index != 0) |
| fprintf(pFile, "%s[%u] = %" PRIu64 " (0x%016" PRIx64 ")\n", |
| m_name, index, m_values[index], m_values[index]); |
| else |
| fprintf(pFile, |
| "%s = %" PRIu64 " (0x%016" PRIx64 ")\n", |
| m_name, m_values[index], m_values[index]); |
| fflush(pFile); |
| } |
| |
| // MP4BitfieldProperty |
| |
| void MP4BitfieldProperty::Read(MP4File* pFile, uint32_t index) |
| { |
| if (m_implicit) { |
| return; |
| } |
| m_values[index] = pFile->ReadBits(m_numBits); |
| } |
| |
| void MP4BitfieldProperty::Write(MP4File* pFile, uint32_t index) |
| { |
| if (m_implicit) { |
| return; |
| } |
| pFile->WriteBits(m_values[index], m_numBits); |
| } |
| |
| void MP4BitfieldProperty::Dump(FILE* pFile, uint8_t indent, |
| bool dumpImplicits, uint32_t index) |
| { |
| if (m_implicit && !dumpImplicits) { |
| return; |
| } |
| Indent(pFile, indent); |
| |
| uint8_t hexWidth = m_numBits / 4; |
| if (hexWidth == 0 || (m_numBits % 4)) { |
| hexWidth++; |
| } |
| if (index != 0) |
| fprintf(pFile, |
| "%s[%u] = %" PRIu64 " (0x%0*" PRIx64 ") <%u bits>\n", |
| m_name, index, m_values[index], (int)hexWidth, m_values[index], m_numBits); |
| else |
| fprintf(pFile, |
| "%s = %" PRIu64 " (0x%0*" PRIx64 ") <%u bits>\n", |
| m_name, m_values[index], (int)hexWidth, m_values[index], m_numBits); |
| fflush(pFile); |
| } |
| |
| // MP4Float32Property |
| |
| void MP4Float32Property::Read(MP4File* pFile, uint32_t index) |
| { |
| if (m_implicit) { |
| return; |
| } |
| if (m_useFixed16Format) { |
| m_values[index] = pFile->ReadFixed16(); |
| } else if (m_useFixed32Format) { |
| m_values[index] = pFile->ReadFixed32(); |
| } else { |
| m_values[index] = pFile->ReadFloat(); |
| } |
| } |
| |
| void MP4Float32Property::Write(MP4File* pFile, uint32_t index) |
| { |
| if (m_implicit) { |
| return; |
| } |
| if (m_useFixed16Format) { |
| pFile->WriteFixed16(m_values[index]); |
| } else if (m_useFixed32Format) { |
| pFile->WriteFixed32(m_values[index]); |
| } else { |
| pFile->WriteFloat(m_values[index]); |
| } |
| } |
| |
| void MP4Float32Property::Dump(FILE* pFile, uint8_t indent, |
| bool dumpImplicits, uint32_t index) |
| { |
| if (m_implicit && !dumpImplicits) { |
| return; |
| } |
| Indent(pFile, indent); |
| if (index != 0) |
| fprintf(pFile, "%s[%u] = %f\n", |
| m_name, index, m_values[index]); |
| else |
| fprintf(pFile, "%s = %f\n", |
| m_name, m_values[index]); |
| fflush(pFile); |
| } |
| |
| // MP4StringProperty |
| |
| MP4StringProperty::MP4StringProperty( |
| const char* name, |
| bool useCountedFormat, |
| bool useUnicode, |
| bool arrayMode ) |
| |
| : MP4Property( name ) |
| , m_arrayMode ( arrayMode ) |
| , m_useCountedFormat ( useCountedFormat ) |
| , m_useExpandedCount ( false ) |
| , m_useUnicode ( useUnicode ) |
| , m_fixedLength ( 0 ) |
| , m_fixedLengthSet ( false ) |
| { |
| SetCount( 1 ); |
| m_values[0] = NULL; |
| } |
| |
| MP4StringProperty::~MP4StringProperty() |
| { |
| uint32_t count = GetCount(); |
| for (uint32_t i = 0; i < count; i++) { |
| MP4Free(m_values[i]); |
| } |
| } |
| |
| void MP4StringProperty::SetCount(uint32_t count) |
| { |
| uint32_t oldCount = m_values.Size(); |
| |
| m_values.Resize(count); |
| |
| for (uint32_t i = oldCount; i < count; i++) { |
| m_values[i] = NULL; |
| } |
| } |
| |
| void MP4StringProperty::SetValue(const char* value, uint32_t index) |
| { |
| if (m_readOnly) { |
| throw new MP4Error(EACCES, "property is read-only", m_name); |
| } |
| |
| MP4Free(m_values[index]); |
| |
| if (m_fixedLengthSet) { |
| m_values[index] = (char*)MP4Calloc(m_fixedLength + 1); |
| if (value) { |
| strncpy(m_values[index], value, m_fixedLength); |
| } |
| } else { |
| if (value) { |
| m_values[index] = MP4Stralloc(value); |
| } else { |
| m_values[index] = NULL; |
| } |
| } |
| } |
| |
| void MP4StringProperty::Read( MP4File* pFile, uint32_t index ) |
| { |
| if( m_implicit ) |
| return; |
| |
| uint32_t begin = index; |
| uint32_t max = index + 1; |
| |
| if( m_arrayMode ) { |
| begin = 0; |
| max = GetCount(); |
| } |
| |
| for( uint32_t i = begin; i < max; i++ ) { |
| char*& value = m_values[i]; |
| |
| if( m_useCountedFormat ) { |
| value = pFile->ReadCountedString( (m_useUnicode ? 2 : 1), m_useExpandedCount, m_fixedLength ); |
| } |
| else if( m_fixedLengthSet ) { |
| // gfinlayson |
| // Handle the case where a fixed length of 0 was set, in as defensive a way |
| // as possible |
| MP4Free( value ); |
| value = (char*)MP4Calloc( m_fixedLength + 1 ); |
| if ( m_fixedLength ) { |
| pFile->ReadBytes( (uint8_t*)value, m_fixedLength ); |
| } |
| } |
| else { |
| value = pFile->ReadString(); |
| } |
| } |
| } |
| |
| void MP4StringProperty::Write( MP4File* pFile, uint32_t index ) |
| { |
| if( m_implicit ) |
| return; |
| |
| uint32_t begin = index; |
| uint32_t max = index + 1; |
| |
| if( m_arrayMode ) { |
| begin = 0; |
| max = GetCount(); |
| } |
| |
| for( uint32_t i = begin; i < max; i++ ) { |
| char*& value = m_values[i]; |
| |
| if( m_useCountedFormat ) { |
| pFile->WriteCountedString( value, (m_useUnicode ? 2 : 1), m_useExpandedCount, m_fixedLength ); |
| } |
| else if( m_fixedLength ) { |
| pFile->WriteBytes( (uint8_t*)value, m_fixedLength ); |
| } |
| else { |
| pFile->WriteString( value ); |
| } |
| } |
| } |
| |
| void MP4StringProperty::Dump( FILE* pFile, uint8_t indent, bool dumpImplicits, uint32_t index ) |
| { |
| if( m_implicit && !dumpImplicits ) |
| return; |
| |
| if( !m_arrayMode ) { |
| char indexd[32]; |
| if( index != 0 ) |
| snprintf( indexd, 32, "[%u]", index ); |
| else |
| indexd[0] = '\0'; |
| |
| Indent( pFile, indent ); |
| if( m_useUnicode ) |
| fprintf( pFile, "%s%s = %ls\n", m_name, indexd, (wchar_t*)m_values[index] ); |
| else |
| fprintf( pFile, "%s%s = %s\n", m_name, indexd, m_values[index] ); |
| } |
| else if( !m_pParentAtom || |
| !m_pParentAtom->GetFile() || |
| (m_pParentAtom->GetFile()->GetVerbosity() & MP4_DETAILS_TABLE) ) |
| { |
| const uint32_t max = GetCount(); |
| |
| Indent( pFile, indent ); |
| fprintf( pFile, "%s (size=%u)\n", m_name, max ); |
| |
| for( uint32_t i = 0; i < max; i++ ) { |
| char*& value = m_values[i]; |
| |
| Indent( pFile, indent ); |
| if( m_useUnicode ) |
| fprintf( pFile, "%s[%u] = %ls\n", m_name, i, (wchar_t*)value ); |
| else |
| fprintf( pFile, "%s[%u] = %s\n", m_name, i, value ); |
| } |
| } |
| else { |
| Indent( pFile, indent ); |
| fprintf( pFile, "<table entries suppressed>\n" ); |
| } |
| |
| fflush( pFile ); |
| } |
| |
| // MP4BytesProperty |
| |
| MP4BytesProperty::MP4BytesProperty(const char* name, uint32_t valueSize, |
| uint32_t defaultValueSize) |
| : MP4Property(name) |
| , m_fixedValueSize(0) |
| , m_defaultValueSize(defaultValueSize) |
| { |
| SetCount(1); |
| m_values[0] = (uint8_t*)MP4Calloc(valueSize); |
| m_valueSizes[0] = valueSize; |
| } |
| |
| MP4BytesProperty::~MP4BytesProperty() |
| { |
| uint32_t count = GetCount(); |
| for (uint32_t i = 0; i < count; i++) { |
| MP4Free(m_values[i]); |
| } |
| } |
| |
| void MP4BytesProperty::SetCount(uint32_t count) |
| { |
| uint32_t oldCount = m_values.Size(); |
| |
| m_values.Resize(count); |
| m_valueSizes.Resize(count); |
| m_valueStart.Resize(count); |
| |
| for (uint32_t i = oldCount; i < count; i++) { |
| m_values[i] = NULL; |
| m_valueSizes[i] = m_defaultValueSize; |
| } |
| } |
| |
| void MP4BytesProperty::SetValue(const uint8_t* pValue, uint32_t valueSize, |
| uint32_t index) |
| { |
| if (m_readOnly) { |
| throw new MP4Error(EACCES, "property is read-only", m_name); |
| } |
| if (m_fixedValueSize) { |
| if (valueSize > m_fixedValueSize) { |
| throw new MP4Error("%s.%s value size %d exceeds fixed value size %d", |
| "MP4BytesProperty::SetValue", |
| GetParentAtom()->GetType(), |
| GetName(), |
| valueSize, |
| m_fixedValueSize); |
| } |
| if (m_values[index] == NULL) { |
| m_values[index] = (uint8_t*)MP4Calloc(m_fixedValueSize); |
| m_valueSizes[index] = m_fixedValueSize; |
| } |
| if (pValue) { |
| memcpy(m_values[index], pValue, valueSize); |
| } |
| } else { |
| MP4Free(m_values[index]); |
| if (pValue) { |
| m_values[index] = (uint8_t*)MP4Malloc(valueSize); |
| memcpy(m_values[index], pValue, valueSize); |
| m_valueSizes[index] = valueSize; |
| } else { |
| m_values[index] = NULL; |
| m_valueSizes[index] = 0; |
| } |
| } |
| } |
| |
| void MP4BytesProperty::SetValueSize(uint32_t valueSize, uint32_t index) |
| { |
| if (m_fixedValueSize) { |
| throw new MP4Error("can't change size of fixed sized property", |
| "MP4BytesProperty::SetValueSize"); |
| } |
| if (m_values[index] != NULL) { |
| m_values[index] = (uint8_t*)MP4Realloc(m_values[index], valueSize); |
| } |
| m_valueSizes[index] = valueSize; |
| } |
| |
| void MP4BytesProperty::SetFixedSize(uint32_t fixedSize) |
| { |
| m_fixedValueSize = 0; |
| for (uint32_t i = 0; i < GetCount(); i++) { |
| SetValueSize(fixedSize, i); |
| } |
| m_fixedValueSize = fixedSize; |
| } |
| |
| void MP4BytesProperty::Read(MP4File* pFile, uint32_t index) |
| { |
| if (m_implicit) { |
| return; |
| } |
| MP4Free(m_values[index]); |
| m_valueStart[index] = pFile->GetPosition(); |
| m_values[index] = (uint8_t*)MP4Malloc(m_valueSizes[index]); |
| pFile->ReadBytes(m_values[index], m_valueSizes[index]); |
| } |
| |
| void MP4BytesProperty::Write(MP4File* pFile, uint32_t index) |
| { |
| if (m_implicit) { |
| return; |
| } |
| pFile->WriteBytes(m_values[index], m_valueSizes[index]); |
| } |
| |
| void MP4BytesProperty::Dump(FILE* pFile, uint8_t indent, |
| bool dumpImplicits, uint32_t index) |
| { |
| if( m_implicit && !dumpImplicits ) |
| return; |
| |
| const uint32_t size = m_valueSizes[index]; |
| const uint8_t* const value = m_values[index]; |
| |
| Indent( pFile, indent ); |
| fprintf( pFile, "%s = <%u bytes>", m_name, size ); |
| |
| if( size == 0 ) { |
| fprintf( pFile, "\n" ); |
| fflush( pFile ); |
| return; |
| } |
| |
| if( size <= 16 ) { |
| ostringstream oss; |
| ostringstream text; |
| |
| oss << " "; |
| for( uint32_t i = 0; i < size; i++ ) { |
| if( i ) |
| oss << ' '; |
| oss << hex << setw(2) << setfill('0') << right << static_cast<uint32_t>(value[i]); |
| text << (isprint( static_cast<int>(value[i]) ) ? static_cast<char>(value[i]) : '.'); |
| } |
| |
| oss << " |" << text.str() << "|\n"; |
| |
| fprintf( pFile, oss.str().c_str() ); |
| fflush( pFile ); |
| return; |
| } |
| |
| uint32_t adjsize; |
| bool supressed; |
| |
| if( size < 128 || |
| !m_pParentAtom || |
| !m_pParentAtom->GetFile() || |
| (m_pParentAtom->GetFile()->GetVerbosity() & MP4_DETAILS_TABLE) ) |
| { |
| adjsize = size; |
| supressed = false; |
| } |
| else { |
| adjsize = 128; |
| supressed = true; |
| } |
| |
| ostringstream oss; |
| ostringstream text; |
| |
| string s; |
| for( uint32_t i = 0; i < adjsize; i++ ) { |
| if( i % 16 == 0 ) { |
| // not safe to use format because bytes may contain format specifies |
| s = oss.str(); |
| fwrite( s.c_str(), s.length(), 1, pFile ); |
| |
| oss.str( "" ); |
| oss << '\n' |
| << setw(indent) << setfill(' ') << "" |
| << hex << setw(8) << setfill('0') << right << i; |
| |
| if( i > 0 ) { |
| fprintf( pFile, " |" ); |
| |
| // not safe to use format because bytes may contain format specifies |
| s = text.str(); |
| fwrite( s.c_str(), s.length(), 1, pFile ); |
| |
| fprintf( pFile, "|" ); |
| text.str( "" ); |
| } |
| |
| fflush( pFile ); |
| } |
| |
| if( i % 8 == 0 ) |
| oss << ' '; |
| |
| oss << ' ' << hex << setw(2) << setfill('0') << right << static_cast<uint32_t>(value[i]); |
| text << (isprint( static_cast<int>(value[i]) ) ? static_cast<char>(value[i]) : '.'); |
| } |
| |
| const string stext = text.str(); |
| if( !stext.empty() ) { |
| const string::size_type deficit = 16 - stext.length(); |
| if( deficit > 7 ) |
| oss << ' '; |
| |
| oss << setfill(' ') << setw( deficit*3 ) << "" << " |" << stext << '|'; |
| } |
| |
| oss << "\n"; |
| |
| if( supressed ) { |
| oss << setw(indent) << setfill(' ') << "" |
| << "<remaining bytes supressed>\n"; |
| } |
| |
| // not safe to use format because bytes may contain format specifies |
| s = oss.str(); |
| fwrite( s.c_str(), s.length(), 1, pFile ); |
| |
| fflush( pFile ); |
| } |
| |
| // MP4TableProperty |
| |
| MP4TableProperty::MP4TableProperty(const char* name, MP4IntegerProperty* pCountProperty) |
| : MP4Property(name) |
| { |
| m_pCountProperty = pCountProperty; |
| m_pCountProperty->SetReadOnly(); |
| } |
| |
| MP4TableProperty::~MP4TableProperty() |
| { |
| for (uint32_t i = 0; i < m_pProperties.Size(); i++) { |
| delete m_pProperties[i]; |
| } |
| } |
| |
| void MP4TableProperty::AddProperty(MP4Property* pProperty) |
| { |
| ASSERT(pProperty); |
| ASSERT(pProperty->GetType() != TableProperty); |
| ASSERT(pProperty->GetType() != DescriptorProperty); |
| m_pProperties.Add(pProperty); |
| pProperty->SetParentAtom(m_pParentAtom); |
| pProperty->SetCount(0); |
| } |
| |
| bool MP4TableProperty::FindProperty(const char *name, |
| MP4Property** ppProperty, uint32_t* pIndex) |
| { |
| ASSERT(m_name); |
| |
| // check if first component of name matches ourselves |
| if (!MP4NameFirstMatches(m_name, name)) { |
| return false; |
| } |
| |
| // check if the specified table entry exists |
| uint32_t index; |
| bool haveIndex = MP4NameFirstIndex(name, &index); |
| if (haveIndex) { |
| if (index >= GetCount()) { |
| return false; |
| } |
| if (pIndex) { |
| *pIndex = index; |
| } |
| } |
| |
| VERBOSE_FIND(m_pParentAtom->GetFile()->GetVerbosity(), |
| printf("FindProperty: matched %s\n", name)); |
| |
| // get name of table property |
| const char *tablePropName = MP4NameAfterFirst(name); |
| if (tablePropName == NULL) { |
| if (!haveIndex) { |
| *ppProperty = this; |
| return true; |
| } |
| return false; |
| } |
| |
| // check if this table property exists |
| return FindContainedProperty(tablePropName, ppProperty, pIndex); |
| } |
| |
| bool MP4TableProperty::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 MP4TableProperty::Read(MP4File* pFile, uint32_t index) |
| { |
| ASSERT(index == 0); |
| |
| if (m_implicit) { |
| return; |
| } |
| |
| uint32_t numProperties = m_pProperties.Size(); |
| |
| if (numProperties == 0) { |
| WARNING(numProperties == 0); |
| return; |
| } |
| |
| uint32_t numEntries = GetCount(); |
| |
| /* for each property set size */ |
| for (uint32_t j = 0; j < numProperties; j++) { |
| m_pProperties[j]->SetCount(numEntries); |
| } |
| |
| for (uint32_t i = 0; i < numEntries; i++) { |
| ReadEntry(pFile, i); |
| } |
| } |
| |
| void MP4TableProperty::ReadEntry(MP4File* pFile, uint32_t index) |
| { |
| for (uint32_t j = 0; j < m_pProperties.Size(); j++) { |
| m_pProperties[j]->Read(pFile, index); |
| } |
| } |
| |
| void MP4TableProperty::Write(MP4File* pFile, uint32_t index) |
| { |
| ASSERT(index == 0); |
| |
| if (m_implicit) { |
| return; |
| } |
| |
| uint32_t numProperties = m_pProperties.Size(); |
| |
| if (numProperties == 0) { |
| WARNING(numProperties == 0); |
| return; |
| } |
| |
| uint32_t numEntries = GetCount(); |
| |
| if (m_pProperties[0]->GetCount() != numEntries) { |
| fprintf(stderr, "%s %s \"%s\"table entries %u doesn't match count %u\n", |
| GetParentAtom() != NULL ? GetParentAtom()->GetType() : "", |
| GetName(), m_pProperties[0]->GetName(), |
| m_pProperties[0]->GetCount(), numEntries); |
| |
| ASSERT(m_pProperties[0]->GetCount() == numEntries); |
| } |
| |
| for (uint32_t i = 0; i < numEntries; i++) { |
| WriteEntry(pFile, i); |
| } |
| } |
| |
| void MP4TableProperty::WriteEntry(MP4File* pFile, uint32_t index) |
| { |
| for (uint32_t j = 0; j < m_pProperties.Size(); j++) { |
| m_pProperties[j]->Write(pFile, index); |
| } |
| } |
| |
| void MP4TableProperty::Dump(FILE* pFile, uint8_t indent, |
| bool dumpImplicits, uint32_t index) |
| { |
| ASSERT(index == 0); |
| |
| // implicit tables just can't be dumped |
| if (m_implicit) { |
| return; |
| } |
| |
| uint32_t numProperties = m_pProperties.Size(); |
| |
| if (numProperties == 0) { |
| WARNING(numProperties == 0); |
| return; |
| } |
| |
| uint32_t numEntries = GetCount(); |
| |
| for (uint32_t i = 0; i < numEntries; i++) { |
| for (uint32_t j = 0; j < numProperties; j++) { |
| m_pProperties[j]->Dump(pFile, indent + 1, dumpImplicits, i); |
| } |
| } |
| } |
| |
| // MP4DescriptorProperty |
| |
| MP4DescriptorProperty::MP4DescriptorProperty(const char* name, |
| uint8_t tagsStart, uint8_t tagsEnd, bool mandatory, bool onlyOne) |
| : MP4Property(name) |
| { |
| SetTags(tagsStart, tagsEnd); |
| m_sizeLimit = 0; |
| m_mandatory = mandatory; |
| m_onlyOne = onlyOne; |
| } |
| |
| MP4DescriptorProperty::~MP4DescriptorProperty() |
| { |
| for (uint32_t i = 0; i < m_pDescriptors.Size(); i++) { |
| delete m_pDescriptors[i]; |
| } |
| } |
| |
| void MP4DescriptorProperty::SetParentAtom(MP4Atom* pParentAtom) { |
| m_pParentAtom = pParentAtom; |
| for (uint32_t i = 0; i < m_pDescriptors.Size(); i++) { |
| m_pDescriptors[i]->SetParentAtom(pParentAtom); |
| } |
| } |
| |
| MP4Descriptor* MP4DescriptorProperty::AddDescriptor(uint8_t tag) |
| { |
| // check that tag is in expected range |
| ASSERT(tag >= m_tagsStart && tag <= m_tagsEnd); |
| |
| MP4Descriptor* pDescriptor = CreateDescriptor(tag); |
| ASSERT(pDescriptor); |
| |
| m_pDescriptors.Add(pDescriptor); |
| pDescriptor->SetParentAtom(m_pParentAtom); |
| |
| return pDescriptor; |
| } |
| |
| void MP4DescriptorProperty::DeleteDescriptor(uint32_t index) |
| { |
| delete m_pDescriptors[index]; |
| m_pDescriptors.Delete(index); |
| } |
| |
| void MP4DescriptorProperty::Generate() |
| { |
| // generate a default descriptor |
| // if it is mandatory, and single |
| if (m_mandatory && m_onlyOne) { |
| MP4Descriptor* pDescriptor = |
| AddDescriptor(m_tagsStart); |
| pDescriptor->Generate(); |
| } |
| } |
| |
| bool MP4DescriptorProperty::FindProperty(const char *name, |
| MP4Property** ppProperty, uint32_t* pIndex) |
| { |
| // we're unnamed, so just check contained properties |
| if (m_name == NULL || !strcmp(m_name, "")) { |
| return FindContainedProperty(name, ppProperty, pIndex); |
| } |
| |
| // check if first component of name matches ourselves |
| if (!MP4NameFirstMatches(m_name, name)) { |
| return false; |
| } |
| |
| // check if the specific descriptor entry exists |
| uint32_t descrIndex; |
| bool haveDescrIndex = MP4NameFirstIndex(name, &descrIndex); |
| |
| if (haveDescrIndex && descrIndex >= GetCount()) { |
| return false; |
| } |
| |
| if (m_pParentAtom) { |
| VERBOSE_FIND(m_pParentAtom->GetFile()->GetVerbosity(), |
| printf("FindProperty: matched %s\n", name)); |
| } |
| |
| // get name of descriptor property |
| name = MP4NameAfterFirst(name); |
| if (name == NULL) { |
| if (!haveDescrIndex) { |
| *ppProperty = this; |
| return true; |
| } |
| return false; |
| } |
| |
| /* check rest of name */ |
| if (haveDescrIndex) { |
| return m_pDescriptors[descrIndex]->FindProperty(name, |
| ppProperty, pIndex); |
| } else { |
| return FindContainedProperty(name, ppProperty, pIndex); |
| } |
| } |
| |
| bool MP4DescriptorProperty::FindContainedProperty(const char *name, |
| MP4Property** ppProperty, uint32_t* pIndex) |
| { |
| for (uint32_t i = 0; i < m_pDescriptors.Size(); i++) { |
| if (m_pDescriptors[i]->FindProperty(name, ppProperty, pIndex)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void MP4DescriptorProperty::Read(MP4File* pFile, uint32_t index) |
| { |
| ASSERT(index == 0); |
| |
| if (m_implicit) { |
| return; |
| } |
| |
| uint64_t start = pFile->GetPosition(); |
| |
| while (true) { |
| // enforce size limitation |
| if (m_sizeLimit && pFile->GetPosition() >= start + m_sizeLimit) { |
| break; |
| } |
| |
| uint8_t tag; |
| try { |
| pFile->PeekBytes(&tag, 1); |
| } |
| catch (MP4Error* e) { |
| if (pFile->GetPosition() >= pFile->GetSize()) { |
| // EOF |
| delete e; |
| break; |
| } |
| throw e; |
| } |
| |
| // check if tag is in desired range |
| if (tag < m_tagsStart || tag > m_tagsEnd) { |
| break; |
| } |
| |
| MP4Descriptor* pDescriptor = |
| AddDescriptor(tag); |
| |
| pDescriptor->Read(pFile); |
| } |
| |
| // warnings |
| if (m_mandatory && m_pDescriptors.Size() == 0) { |
| VERBOSE_READ(pFile->GetVerbosity(), |
| printf("Warning: Mandatory descriptor 0x%02x missing\n", |
| m_tagsStart)); |
| } else if (m_onlyOne && m_pDescriptors.Size() > 1) { |
| VERBOSE_READ(pFile->GetVerbosity(), |
| printf("Warning: Descriptor 0x%02x has more than one instance\n", |
| m_tagsStart)); |
| } |
| } |
| |
| void MP4DescriptorProperty::Write(MP4File* pFile, uint32_t index) |
| { |
| ASSERT(index == 0); |
| |
| if (m_implicit) { |
| return; |
| } |
| |
| for (uint32_t i = 0; i < m_pDescriptors.Size(); i++) { |
| m_pDescriptors[i]->Write(pFile); |
| } |
| } |
| |
| void MP4DescriptorProperty::Dump(FILE* pFile, uint8_t indent, |
| bool dumpImplicits, uint32_t index) |
| { |
| ASSERT(index == 0); |
| |
| if (m_implicit && !dumpImplicits) { |
| return; |
| } |
| |
| if (m_name) { |
| Indent(pFile, indent); |
| if (index != 0) |
| fprintf(pFile, "%s[%u]\n", m_name, index); |
| else |
| fprintf(pFile, "%s\n", m_name); |
| indent++; |
| } |
| |
| for (uint32_t i = 0; i < m_pDescriptors.Size(); i++) { |
| m_pDescriptors[i]->Dump(pFile, indent, dumpImplicits); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| MP4LanguageCodeProperty::MP4LanguageCodeProperty( const char* name, bmff::LanguageCode value ) |
| : MP4Property( name ) |
| { |
| SetValue( value ); |
| } |
| |
| MP4LanguageCodeProperty::MP4LanguageCodeProperty( const char* name, const string& code ) |
| : MP4Property( name ) |
| { |
| SetValue( bmff::enumLanguageCode.toType( code )); |
| } |
| |
| void |
| MP4LanguageCodeProperty::Dump( FILE* file, uint8_t indent, bool dumpImplicits, uint32_t index ) |
| { |
| Indent( file, indent ); |
| |
| uint16_t data = 0; |
| |
| string svalue; |
| bmff::enumLanguageCode.toString( _value, svalue ); |
| if( svalue.length() == 3 ) { |
| data = (((svalue[0] - 0x60) & 0x001f) << 10) |
| | (((svalue[1] - 0x60) & 0x001f) << 5) |
| | (((svalue[2] - 0x60) & 0x001f) ); |
| } |
| |
| fprintf( file, "%s = %s (0x%04x)\n", m_name, bmff::enumLanguageCode.toString( _value, true ).c_str(), data ); |
| } |
| |
| uint32_t |
| MP4LanguageCodeProperty::GetCount() |
| { |
| return 1; |
| } |
| |
| MP4PropertyType |
| MP4LanguageCodeProperty::GetType() |
| { |
| return LanguageCodeProperty; |
| } |
| |
| bmff::LanguageCode |
| MP4LanguageCodeProperty::GetValue() |
| { |
| return _value; |
| } |
| |
| void |
| MP4LanguageCodeProperty::Read( MP4File* file, uint32_t index ) |
| { |
| uint16_t data = file->ReadBits( 16 ); |
| |
| char code[3]; |
| code[0] = ((data & 0x7c00) >> 10) + 0x60; |
| code[1] = ((data & 0x03e0) >> 5) + 0x60; |
| code[2] = ((data & 0x001f) ) + 0x60; |
| |
| SetValue( bmff::enumLanguageCode.toType( string( code, sizeof(code) ))); |
| } |
| |
| void |
| MP4LanguageCodeProperty::SetCount( uint32_t count ) |
| { |
| // do nothing; count is always 1 |
| } |
| |
| void |
| MP4LanguageCodeProperty::SetValue( bmff::LanguageCode value ) |
| { |
| _value = value; |
| } |
| |
| void |
| MP4LanguageCodeProperty::Write( MP4File* file, uint32_t index ) |
| { |
| uint16_t data = 0; |
| |
| string svalue; |
| bmff::enumLanguageCode.toString( _value, svalue ); |
| if( svalue.length() == 3 ) { |
| data = (((svalue[0] - 0x60) & 0x001f) << 10) |
| | (((svalue[1] - 0x60) & 0x001f) << 5) |
| | (((svalue[2] - 0x60) & 0x001f) ); |
| } |
| |
| file->WriteBits( data, 16 ); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| MP4BasicTypeProperty::MP4BasicTypeProperty( const char* name, itmf::BasicType type ) |
| : MP4Property( name ) |
| { |
| SetValue( type ); |
| } |
| |
| void |
| MP4BasicTypeProperty::Dump( FILE* file, uint8_t indent, bool dumpImplicits, uint32_t index ) |
| { |
| Indent( file, indent ); |
| fprintf( file, "%s = %s (0x%02x)\n", m_name, itmf::enumBasicType.toString( _value, true ).c_str(), _value ); |
| } |
| |
| uint32_t |
| MP4BasicTypeProperty::GetCount() |
| { |
| return 1; |
| } |
| |
| MP4PropertyType |
| MP4BasicTypeProperty::GetType() |
| { |
| return BasicTypeProperty; |
| } |
| |
| itmf::BasicType |
| MP4BasicTypeProperty::GetValue() |
| { |
| return _value; |
| } |
| |
| void |
| MP4BasicTypeProperty::Read( MP4File* file, uint32_t index ) |
| { |
| SetValue( static_cast<itmf::BasicType>( file->ReadBits( 8 ))); |
| } |
| |
| void |
| MP4BasicTypeProperty::SetCount( uint32_t count ) |
| { |
| // do nothing; count is always 1 |
| } |
| |
| void |
| MP4BasicTypeProperty::SetValue( itmf::BasicType value ) |
| { |
| _value = value; |
| } |
| |
| void |
| MP4BasicTypeProperty::Write( MP4File* file, uint32_t index ) |
| { |
| file->WriteBits( _value, 8 ); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| }} // namespace mp4v2::impl |
