//---------------------------------------------------------------------------
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();
}
//---------------------------------------------------------------------------
// Packet "B3" or "B6"
void File_AvsV::picture_start()
{
//Counting
if (File_Offset+Buffer_Offset+Element_Size==File_Size)
Frame_Count_Valid=Frame_Count; //Finalize frames in case of there are less than Frame_Count_Valid frames
Frame_Count++;
//Name
Element_Name("picture_start");
Element_Info1(Ztring::ToZtring(Frame_Count));
Element_Info1C((Element_Code==0xB3), __T("I"));
//Parsing
int8u picture_coding_type=(int8u)-1;
bool time_code_flag, progressive_frame, picture_structure=true, top_field_first, repeat_first_field, skip_mode_flag=false, loop_filter_disable;
Skip_B2( "bbv_delay");
BS_Begin();
if (Element_Code==0xB3) //Only I
{
Get_SB ( time_code_flag, "time_code_flag");
if (time_code_flag)
{
Skip_SB( "time_code_dropframe");
Skip_S1(5, "time_code_hours");
Skip_S1(6, "time_code_minutes");
Skip_S1(6, "time_code_seconds");
Skip_S1(6, "time_code_pictures");
}
}
if (Element_Code==0xB6) //Only P or B
{
Get_S1 ( 2, picture_coding_type, "picture_coding_type"); Element_Info1(AvsV_picture_coding_type[picture_coding_type]);
}
Skip_S1( 8, "picture_distance");
if (low_delay)
Skip_UE( "bbv_check_times");
Get_SB ( progressive_frame, "progressive_frame");
if (!progressive_frame)
{
Get_SB( picture_structure, "picture_structure");
if (Element_Code==0xB6) //Only P or B
{
if (picture_structure)
Skip_SB( "advanced_pred_mode_disable");
}
}
Get_SB ( top_field_first, "top_field_first");
Get_SB ( repeat_first_field, "repeat_first_field");
Skip_SB( "fixed_picture_qp");
Skip_S1( 6, "picture_qp");
if (Element_Code==0xB3) //Only I
{
if (!progressive_frame && !picture_structure)
Get_SB( skip_mode_flag, "skip_mode_flag");
}
if (Element_Code==0xB6) //Only P or B
{
if (picture_coding_type!=2 || !picture_structure)
Skip_SB( "picture_reference_flag");
}
Skip_SB( "reserved");
Skip_SB( "reserved");
Skip_SB( "reserved");
Skip_SB( "reserved");
if (Element_Code==0xB6) //Only P or B
{
Get_SB( skip_mode_flag, "skip_mode_flag");
}
Get_SB ( loop_filter_disable, "loop_filter_disable");
if (!loop_filter_disable)
{
bool loop_filter_parameter_flag;
Get_SB ( loop_filter_parameter_flag, "loop_filter_parameter_flag");
if (loop_filter_parameter_flag)
{
Skip_SE( "alpha_c_offset");
Skip_SE( "beta_offset");
}
}
BS_End();
if (Element_Size-Element_Offset)
Skip_XX(Element_Size-Element_Offset, "Unknown");
FILLING_BEGIN();
if (progressive_frame==false)
{
if (picture_structure==true) //Frame
{
if (top_field_first)
Interlaced_Top++;
else
Interlaced_Bottom++;
}
}
else
progressive_frame_Count++;
//NextCode
NextCode_Test();
NextCode_Clear();
for (int8u Pos=0x00; Pos<=0xAF; Pos++)
NextCode_Add(Pos); //slice
NextCode_Add(0xB0); //video_sequence_start
NextCode_Add(0xB3); //picture_start
NextCode_Add(0xB6); //picture_start
//Autorisation of other streams
for (int8u Pos=0x00; Pos<=0xAF; Pos++)
Streams[Pos].Searching_Payload=true; //slice
//Filling only if not already done
if (Frame_Count>=Frame_Count_Valid && Count_Get(Stream_Video)==0)
{
//No need of more
Accept("AVS Video");
Finish("AVS Video");
}
FILLING_END();
}
