//---------------------------------------------------------------------------
void File_Cdp::Read_Buffer_Continue()
{
if (Buffer_Size==0)
return;
if (WithAppleHeader)
{
int32u Size, Magic;
Get_B4 (Size, "Size");
Get_B4 (Magic, "Magic");
FILLING_BEGIN();
if (Magic!=0x63636470)
{
Reject("CDP");
return;
}
FILLING_END();
}
//CRC
int8u CRC=0;
for (size_t Pos=WithAppleHeader?8:0; Pos<Buffer_Size; Pos++)
CRC+=Buffer[Pos];
if (CRC)
{
Skip_XX(Element_Size-Element_Offset, "Invalid data (CRC fails)");
return;
}
cdp_header();
while(Element_Offset<Element_Size)
{
int8u section_id;
Peek_L1(section_id);
switch (section_id)
{
case 0x71 :
time_code_section();
break;
case 0x72 :
ccdata_section();
break;
case 0x73 :
ccsvcinfo_section();
break;
case 0x74 :
cdp_footer();
break;
case 0xFF :
Skip_B1("Padding?");
break;
default :
if (section_id>=0x75 && section_id<=0xEF)
future_section();
else
Skip_XX(Element_Size-Element_Offset, "Unknown");
}
}
}
//---------------------------------------------------------------------------
void File_Ogg::Data_Parse()
{
//Counting
Frame_Count++;
//If first chunk of a stream
stream& Stream_Item=Stream[Element_Code]; //[+] FlylinkDC++ Team
if (Stream_Item.Parser==NULL)
{
if (Parsing_End)
return; //Maybe multitracks concatained, not supported
Stream_Item.Parser=new File_Ogg_SubElement;
Open_Buffer_Init(Stream_Item.Parser);
((File_Ogg_SubElement*)Stream_Item.Parser)->InAnotherContainer=IsSub;
StreamsToDo++;
}
((File_Ogg_SubElement*)Stream_Item.Parser)->MultipleStreams=Stream.size()>1; //has no sens for the first init, must check allways
//Parsing
File_Ogg_SubElement* Parser=(File_Ogg_SubElement*)Stream_Item.Parser;
if (Stream_Item.SearchingPayload)
//For each chunk
for (size_t Chunk_Sizes_Pos=0; Chunk_Sizes_Pos<Chunk_Sizes.size(); Chunk_Sizes_Pos++)
{
//Info
if (!continued)
Peek_L1(packet_type); //Only for information
Element_Info1(Ztring::ToZtring(packet_type, 16));
Element_Info1C((continued), "Continue");
//Parsing
if (continued || Parser->File_Offset!=Parser->File_Size)
Open_Buffer_Continue(Parser, Buffer+Buffer_Offset+(size_t)Element_Offset, Chunk_Sizes[Chunk_Sizes_Pos]);
if (Chunk_Sizes_Pos<Chunk_Sizes.size()-1
|| (Chunk_Sizes_Pos==Chunk_Sizes.size()-1 && Chunk_Sizes_Finished))
{
Open_Buffer_Continue(Parser, Buffer+Buffer_Offset, 0); //Purge old datas
}
Element_Offset+=Chunk_Sizes[Chunk_Sizes_Pos];
continued=false; //If there is another chunk, this can not be a continued chunk
if (Parser->File_GoTo!=(int64u)-1)
Chunk_Sizes_Pos=Chunk_Sizes.size();
if (!Status[IsAccepted] && Parser->Status[IsAccepted])
Accept("OGG");
if (Parser->Status[IsFinished] || (Element_Offset==Element_Size && eos))
{
StreamsToDo--;
Stream_Item.SearchingPayload=false;
break;
}
}
else
Skip_XX(Element_Size, "Data");
//End of stream
if (!Parsing_End &&
(StreamsToDo==0 || File_Offset+Buffer_Offset+Element_Offset>256*1024))
{
if (IsSub)
Finish("OGG");
else
GoToFromEnd(256*1024, "OGG");
std::map<int64u, stream>::iterator Stream_Temp=Stream.begin();
if (File_GoTo!=(int64u)-1)
while (Stream_Temp!=Stream.end())
{
Stream_Temp->second.absolute_granule_position=0;
++Stream_Temp;
}
Parsing_End=true;
}
Element_Show();
}
//---------------------------------------------------------------------------
void File_Ogg::Data_Parse()
{
//If first chunk of a stream
if (Stream[Element_Code].Parser==NULL)
{
Stream[Element_Code].Parser=new File_Ogg_SubElement;
StreamsToDo++;
}
//Parsing
File_Ogg_SubElement* Parser=(File_Ogg_SubElement*)Stream[Element_Code].Parser;
if (!Parser->SetupFinnished)
//For each chunk
for (size_t Chunk_Sizes_Pos=0; Chunk_Sizes_Pos<Chunk_Sizes.size(); Chunk_Sizes_Pos++)
{
//Info
if (!continued)
Peek_L1(packet_type); //Only for information
Element_Info(Ztring::ToZtring(packet_type, 16));
if (continued)
Element_Info("Continue");
//Parsing
Open_Buffer_Init(Parser, File_Size, File_Offset+Buffer_Offset);
if (continued || Parser->File_Offset!=Parser->File_Size)
Open_Buffer_Continue(Parser, Buffer+Buffer_Offset+Element_Offset, Chunk_Sizes[Chunk_Sizes_Pos]);
if (Chunk_Sizes_Pos<Chunk_Sizes.size()-1
|| (Chunk_Sizes_Pos==Chunk_Sizes.size()-1 && Chunk_Sizes_Finnished))
Open_Buffer_Continue(Parser, Buffer+Buffer_Offset, 0); //Purge old datas
if (Parser->SetupFinnished)
{
Merge(*Parser);
Merge(*Parser, Stream_General, 0, 0);
Stream[Element_Code].StreamKind=((File_Ogg_SubElement*)Parser)->StreamKind;
Stream[Element_Code].StreamPos=Count_Get(Stream[Element_Code].StreamKind)-1;
Stream[Element_Code].absolute_granule_position_Resolution=((File_Ogg_SubElement*)Stream[Element_Code].Parser)->absolute_granule_position_Resolution;
StreamsToDo--;
}
Element_Offset+=Chunk_Sizes[Chunk_Sizes_Pos];
continued=false; //If there is another chunk, this can not be a continued chunk
if (Parser->SetupFinnished)
Chunk_Sizes_Pos=Chunk_Sizes.size();
}
//End of stream
if (!Parsing_End && File_Size>2*256*1024 &&
(StreamsToDo==0 || File_Offset+Buffer_Offset+Element_Offset>256*1024))
{
Info("OGG, Jumping to end of file");
File_GoTo=File_Size-256*1024;
std::map<int64u, stream>::iterator Stream_Temp=Stream.begin();
while (Stream_Temp!=Stream.end())
{
Stream_Temp->second.absolute_granule_position=0;
Stream_Temp++;
}
Parsing_End=true;
}
}
