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/* Copyright (c) MediaArea.net SARL. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license that can
* be found in the License.html file in the root of the source tree.
*/
//---------------------------------------------------------------------------
// Pre-compilation
#include "MediaInfo/PreComp.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
#include "MediaInfo/Setup.h"
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
#if MEDIAINFO_IBIUSAGE
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
#include "MediaInfo/Multiple/File_Ibi_Creation.h"
#include <cstring>
#include <ctime>
#include <zlib.h>
#include "base64.h"
#include "ZenLib/File.h"
#include "ZenLib/OS_Utils.h"
#ifdef WINDOWS
#undef __TEXT
#include <windows.h>
#endif
using namespace std;
//---------------------------------------------------------------------------
namespace MediaInfoLib
{
//***************************************************************************
// Info
//***************************************************************************
extern const Char* MediaInfo_Version;
//***************************************************************************
// Ibi structure
//***************************************************************************
//---------------------------------------------------------------------------
ibi::ibi()
{
}
//---------------------------------------------------------------------------
ibi::~ibi()
{
for (streams::iterator Stream=Streams.begin(); Stream!=Streams.end(); ++Stream)
delete Stream->second; //Stream->second=NULL;
}
//---------------------------------------------------------------------------
void ibi::stream::Add (const info &Info)
{
if (!IsSynchronized)
{
//Searching the right insertion point
for (Infos_Pos=0; Infos_Pos<Infos.size(); Infos_Pos++)
if (Info.StreamOffset<Infos[Infos_Pos].StreamOffset)
break;
}
//Testing if new data is same as current insertion point
if (Infos_Pos && Infos[Infos_Pos-1].FrameNumber==Info.FrameNumber && Info.FrameNumber!=(int64u)-1)
{
IsSynchronized=true;
return;
}
if (Infos_Pos && Info.Dts==Infos[Infos_Pos-1].Dts && Info.Dts!=(int64u)-1)
{
//Duplicate, updating it (in case of new frame count)
if (Infos_Pos && Info.FrameNumber!=(int64u)-1 && Info.FrameNumber<Infos[Infos_Pos-1].FrameNumber)
{
Infos[Infos_Pos-1].FrameNumber=Info.FrameNumber;
Infos[Infos_Pos-1].Dts=Info.Dts;
}
IsSynchronized=true;
return;
}
if (Infos_Pos && Info.StreamOffset==Infos[Infos_Pos-1].StreamOffset)
{
//Duplicate, updating it (in case of new frame count)
if (Infos_Pos && Info.FrameNumber!=(int64u)-1 && Info.FrameNumber<Infos[Infos_Pos-1].FrameNumber)
{
Infos[Infos_Pos-1].FrameNumber=Info.FrameNumber;
Infos[Infos_Pos-1].Dts=Info.Dts;
}
IsSynchronized=true;
return;
}
//Previous item
if (IsSynchronized && Infos_Pos)
{
Infos[Infos_Pos-1].IsContinuous=true;
IsContinuous=true;
IsModified=true;
}
IsSynchronized=true;
//Testing if new data is same as next insertion point
if (Infos_Pos<Infos.size() && Infos[Infos_Pos].FrameNumber==Info.FrameNumber && Info.FrameNumber!=(int64u)-1)
{
Infos_Pos++;
IsSynchronized=true;
return;
}
if (Infos_Pos<Infos.size() && Info.Dts==Infos[Infos_Pos].Dts && Info.Dts!=(int64u)-1)
{
Infos_Pos++;
IsSynchronized=true;
return;
}
if (Infos_Pos<Infos.size() && Info.StreamOffset==Infos[Infos_Pos].StreamOffset)
{
//Duplicate, updating it (in case of new frame count)
if (IsSynchronized && Info.FrameNumber!=(int64u)-1)
Infos[Infos_Pos].FrameNumber=Info.FrameNumber;
Infos_Pos++;
IsSynchronized=true;
return;
}
Infos.insert(Infos.begin()+Infos_Pos, Info);
Infos_Pos++;
IsModified=true;
}
//---------------------------------------------------------------------------
void ibi::stream::Unsynch ()
{
Infos_Pos=0;
IsModified=false;
IsContinuous=false;
IsSynchronized=false;
}
//***************************************************************************
// Utils
//***************************************************************************
size_t int64u2Ebml(int8u* List, int64u Value)
{
//1 byte
if (Value<=126) //2^7-2
{
if (List)
{
List[0]=0x80|((int8u)Value);
}
return 1;
}
//2 bytes
if (Value<=16382) //2^14-2
{
if (List)
{
List[0]=0x40|((int8u)(Value>>8));
List[1]=(int8u)Value;
}
return 2;
}
//3 bytes
if (Value<=2097150) //2^21-2
{
if (List)
{
List[0]=0x20|((int8u)(Value>>16));
List[1]=(int8u)(Value>>8);
List[2]=(int8u)Value;
}
return 3;
}
//4 bytes
if (Value<=268435454) //2^28-2
{
if (List)
{
List[0]=0x10|((int8u)(Value>>24));
List[1]=(int8u)(Value>>16);
List[2]=(int8u)(Value>>8);
List[3]=(int8u)Value;
}
return 4;
}
//5 bytes
if (Value<=34359738366LL) //2^35-2
{
if (List)
{
List[0]=0x08|((int8u)(Value>>32));
List[1]=(int8u)(Value>>24);
List[2]=(int8u)(Value>>16);
List[3]=(int8u)(Value>>8);
List[4]=(int8u)Value;
}
return 5;
}
//6 bytes
if (Value<=4398046511102LL) //2^42-2
{
if (List)
{
List[0]=0x04|((int8u)(Value>>40));
List[1]=(int8u)(Value>>32);
List[2]=(int8u)(Value>>24);
List[3]=(int8u)(Value>>16);
List[4]=(int8u)(Value>>8);
List[5]=(int8u)Value;
}
return 6;
}
//7 bytes
if (Value<=562949953421310LL) //2^49-2
{
if (List)
{
List[0]=0x02|((int8u)(Value>>48));
List[1]=(int8u)(Value>>40);
List[2]=(int8u)(Value>>32);
List[3]=(int8u)(Value>>24);
List[4]=(int8u)(Value>>16);
List[5]=(int8u)(Value>>8);
List[6]=(int8u)Value;
}
return 7;
}
//8 bytes
if (Value<=72057594037927934LL) //2^56-2
{
if (List)
{
List[0]=0x01;
List[1]=(int8u)(Value>>56);
List[2]=(int8u)(Value>>40);
List[3]=(int8u)(Value>>32);
List[4]=(int8u)(Value>>24);
List[5]=(int8u)(Value>>16);
List[6]=(int8u)(Value>>8);
List[7]=(int8u)Value;
}
return 8;
}
if (List)
List[0]=0xFF;
return 1;
}
size_t EbmlBlock(int8u* List, size_t List_MaxSize, int64u Code, int8u* Content, size_t Content_Size)
{
if (Content_Size==0)
return 0;
size_t Code_EbmlSize=int64u2Ebml(NULL, Code);
size_t Content_EbmlSize=int64u2Ebml(NULL, Content_Size);
if (List && Code_EbmlSize+Content_EbmlSize+Content_Size>List_MaxSize)
return 0;
if (List)
{
List+=int64u2Ebml(List, Code);
List+=int64u2Ebml(List, Content_Size);
std::memcpy(List, Content, Content_Size);
//List+=Content_Size; //Content
}
return Code_EbmlSize+Content_EbmlSize+Content_Size;
}
//***************************************************************************
// Constructor/Destructor
//***************************************************************************
//---------------------------------------------------------------------------
File_Ibi_Creation::File_Ibi_Creation()
{
}
//---------------------------------------------------------------------------
File_Ibi_Creation::~File_Ibi_Creation()
{
for (size_t Pos=0; Pos<Buffers.size(); Pos++)
delete Buffers[Pos];
}
//***************************************************************************
// Helpers
//***************************************************************************
//---------------------------------------------------------------------------
void File_Ibi_Creation::Set(const ibi &Ibi)
{
//Source information
if (!Ibi.FileName.empty())
{
int64s CurrentDate=(int64s)time(NULL)*1000000000LL; //From seconds to nanoseconds
CurrentDate-=978307200000000000LL; //Count of nanoseconds between January 1, 1970 (time_t base) and January 1, 2001 (EBML base)
int64s LastModifiedDate=0;
bool LastModifiedDate_IsValid=false;
int64s FileSize=0;
bool FileSize_IsValid=false;
#if defined WINDOWS
HANDLE File_Handle;
#ifdef UNICODE
File_Handle=CreateFileW(Ibi.FileName.c_str(), 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
#else
File_Handle=CreateFile(Ibi.FileName.To_Local().c_str(), 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
#endif //UNICODE
if (File_Handle!=INVALID_HANDLE_VALUE)
{
FILETIME TimeFT;
if (GetFileTime(File_Handle, NULL, NULL, &TimeFT))
{
LastModifiedDate=(0x100000000LL*TimeFT.dwHighDateTime+TimeFT.dwLowDateTime)*100; //From 100-nanoseconds to nanoseconds
LastModifiedDate-=12622780800000000LL; //Count of nanoseconds between January 1, 1601 (Windows base) and January 1, 2001 (EBML base)
LastModifiedDate_IsValid=true;
}
DWORD High; DWORD Low=GetFileSize(File_Handle, &High);
if (Low!=INVALID_FILE_SIZE)
{
FileSize=0x100000000ULL*High+Low;
FileSize_IsValid=true;
}
CloseHandle(File_Handle);
}
#endif //WINDOWS
size_t BlockSizeWithoutHeader=1+1+8; //Index creation date + Source file size
if (LastModifiedDate_IsValid)
BlockSizeWithoutHeader+=1+1+8; //Source file modification date
if (FileSize_IsValid)
BlockSizeWithoutHeader+=1+1+8; //Source file size
buffer* Buffer=new buffer;
Buffer->Content=new int8u[1+int64u2Ebml(NULL, 1+int64u2Ebml(NULL, BlockSizeWithoutHeader))+BlockSizeWithoutHeader];
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 0x05); //Source information
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, BlockSizeWithoutHeader); //Size
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 0x01); //Index creation date
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 8); //Size
int64u2BigEndian(Buffer->Content+Buffer->Size, (int64u)CurrentDate); Buffer->Size+=8; //Content
if (LastModifiedDate_IsValid)
{
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 0x02); //Source file modification date
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 8); //Size
int64u2BigEndian(Buffer->Content+Buffer->Size, (int64u)LastModifiedDate); Buffer->Size+=8; //Content
}
if (FileSize_IsValid)
{
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 0x03); //Source file size
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 8); //Size
int64u2BigEndian(Buffer->Content+Buffer->Size, (int64u)CurrentDate); Buffer->Size+=8; //Content
}
Buffers.push_back(Buffer);
}
//Writing application
{
string Version=Ztring(MediaInfo_Version).SubString(__T(" - v"), Ztring()).To_UTF8();
buffer* Buffer=new buffer;
Buffer->Content=new int8u[1+int64u2Ebml(NULL, 1+1+9+1+int64u2Ebml(NULL, Version.size())+Version.size())+1+1+9+1+int64u2Ebml(NULL, Version.size())+Version.size()];
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 0x03); //Writing application
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 1+1+9+1+1+Version.size()); //Size
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 0x01); //Writing application name
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 9); //Size
std::memcpy(Buffer->Content+Buffer->Size, "MediaInfo", 9); Buffer->Size+=9; //Content
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 0x02); //Writing application version
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, Version.size()); //Size
std::memcpy(Buffer->Content+Buffer->Size, Version.c_str(), Version.size()); Buffer->Size+=Version.size(); //Content
Buffers.push_back(Buffer);
}
//InformData
if (!Ibi.Inform_Data.empty())
{
string Content(Ibi.Inform_Data.To_UTF8());
buffer* Buffer=new buffer;
Buffer->Content=new int8u[1+int64u2Ebml(NULL, Content.size())+Content.size()];
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 0x04); //InformData
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, Content.size()); //Size
std::memcpy(Buffer->Content+Buffer->Size, Content.c_str(), Content.size()); Buffer->Size+=Content.size(); //Content
Buffers.push_back(Buffer);
}
//Streams
for (ibi::streams::const_iterator IbiStream_Temp=Ibi.Streams.begin(); IbiStream_Temp!=Ibi.Streams.end(); ++IbiStream_Temp)
Add(IbiStream_Temp->first, *IbiStream_Temp->second);
}
//---------------------------------------------------------------------------
void File_Ibi_Creation::Add(int64u ID, const ibi::stream &Stream)
{
//Useful?
if (Stream.Infos.empty())
return;
//Header
int8u* IbiHeader;
size_t IbiHeader_Offset=0;
if (ID!=(int64u)-1)
{
IbiHeader=new int8u[int64u2Ebml(NULL, ID)];
IbiHeader_Offset+=int64u2Ebml(IbiHeader, ID);
}
else
IbiHeader=NULL;
//Init - Byte Offset
int8u* IbiByteOffset=new int8u[8*Stream.Infos.size()];
size_t IbiByteOffset_Offset=0;
//Init - Frame Number
int8u* IbiFrameNumber=new int8u[8*Stream.Infos.size()];
size_t IbiFrameNumber_Offset=0;
//Init - DTS
int8u* IbiDts=new int8u[16+8*Stream.Infos.size()];
size_t IbiDts_Offset=0;
IbiDts_Offset+=int64u2Ebml(IbiDts+IbiDts_Offset, Stream.DtsFrequencyNumerator);
IbiDts_Offset+=int64u2Ebml(IbiDts+IbiDts_Offset, Stream.DtsFrequencyDenominator);
//Per item
for (size_t Pos=0; Pos<Stream.Infos.size(); Pos++)
{
IbiByteOffset_Offset+=int64u2Ebml(IbiByteOffset+IbiByteOffset_Offset, Stream.Infos[Pos].StreamOffset-(Pos?Stream.Infos[Pos-1].StreamOffset:0));
IbiFrameNumber_Offset+=int64u2Ebml(IbiFrameNumber+IbiFrameNumber_Offset, Stream.Infos[Pos].FrameNumber-(Pos?Stream.Infos[Pos-1].FrameNumber:0));
IbiDts_Offset+=int64u2Ebml(IbiDts+IbiDts_Offset, Stream.Infos[Pos].Dts-(Pos?Stream.Infos[Pos-1].Dts:0));
}
//Sizes
size_t IbiHeader_EbmlSize=EbmlBlock(NULL, 0, 0x01, NULL, IbiHeader_Offset);
size_t IbiByteOffset_EbmlSize=EbmlBlock(NULL, 0, 0x02, NULL, IbiByteOffset_Offset);
size_t IbiFrameNumber_EbmlSize=EbmlBlock(NULL, 0, 0x03, NULL, IbiFrameNumber_Offset);
size_t IbiDts_EbmlSize=EbmlBlock(NULL, 0, 0x04, NULL, IbiDts_Offset);
//Buffer
buffer* Buffer=new buffer;
Buffer->Content=new int8u[1+int64u2Ebml(NULL, IbiHeader_EbmlSize+IbiByteOffset_EbmlSize+IbiFrameNumber_EbmlSize+IbiDts_EbmlSize)+IbiHeader_EbmlSize+IbiByteOffset_EbmlSize+IbiFrameNumber_EbmlSize+IbiDts_EbmlSize];
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, 0x01); //Stream
Buffer->Size+=int64u2Ebml(Buffer->Content+Buffer->Size, IbiHeader_EbmlSize+IbiByteOffset_EbmlSize+IbiFrameNumber_EbmlSize+IbiDts_EbmlSize); //Size
Buffer->Size+=EbmlBlock(Buffer->Content+Buffer->Size, IbiHeader_EbmlSize, 0x01, IbiHeader, IbiHeader_Offset); //IbiHeader
Buffer->Size+=EbmlBlock(Buffer->Content+Buffer->Size, IbiByteOffset_EbmlSize, 0x02, IbiByteOffset, IbiByteOffset_Offset); //ByteOffset
Buffer->Size+=EbmlBlock(Buffer->Content+Buffer->Size, IbiFrameNumber_EbmlSize, 0x03, IbiFrameNumber, IbiFrameNumber_Offset); //FrameNumber
Buffer->Size+=EbmlBlock(Buffer->Content+Buffer->Size, IbiDts_EbmlSize, 0x04, IbiDts, IbiDts_Offset); //Dts
Buffers.push_back(Buffer);
//Finish
delete[] IbiByteOffset; //IbiByteOffset=NULL;
delete[] IbiFrameNumber; //IbiFrameNumber=NULL;
delete[] IbiDts; //IbiDts=NULL;
}
Ztring File_Ibi_Creation::Finish()
{
//Test
if (Buffers.empty())
return Ztring();
//Size computing
size_t Size=4+1+2+1+15+2+1+1; //Header size
for (size_t Pos=0; Pos<Buffers.size(); Pos++)
Size+=Buffers[Pos]->Size;
//Buffer creation
int8u* Main=new int8u[Size];
size_t Main_Offset=0;
//Header
size_t Header_Offset=4+1+2+1+15+2+1+1; //Size (Code + Size + Content, twice)
Main_Offset+=int64u2Ebml(Main+Main_Offset, 0x0A45DFA3); //EBML
Main_Offset+=int64u2Ebml(Main+Main_Offset, Header_Offset-(4+1)); //Size (Complete header size minus header header size)
Main_Offset+=int64u2Ebml(Main+Main_Offset, 0x0282); //DocType
Main_Offset+=int64u2Ebml(Main+Main_Offset, 15); //Size
std::memcpy(Main+Main_Offset, "MediaInfo Index", 15); Main_Offset+=15; //Content
Main_Offset+=int64u2Ebml(Main+Main_Offset, 0x0285); //DocTypeReadVersion
Main_Offset+=int64u2Ebml(Main+Main_Offset, 1); //Size
Main[Main_Offset]=0x01; Main_Offset+=1; //Content
//for each stream
for (size_t Pos=0; Pos<Buffers.size(); Pos++)
{
std::memcpy(Main+Main_Offset, Buffers[Pos]->Content, Buffers[Pos]->Size);
Main_Offset+=Buffers[Pos]->Size;
}
//Compressed
if (Header_Offset < Main_Offset)
{
buffer Buffer;
size_t UncompressedSize = Main_Offset - Header_Offset;
int8u* Compressed = new int8u[UncompressedSize];
unsigned long CompressedSize = (unsigned long)Main_Offset;
if (compress2(Compressed, &CompressedSize, Main + Header_Offset, (unsigned long)UncompressedSize, Z_BEST_COMPRESSION) == Z_OK && CompressedSize < UncompressedSize)
{
Main_Offset = Header_Offset; //Removing uncompressed content
Main_Offset += int64u2Ebml(Main + Main_Offset, 0x02); //Compressed index
Main_Offset += int64u2Ebml(Main + Main_Offset, int64u2Ebml(NULL, UncompressedSize) + CompressedSize); //Size
Main_Offset += int64u2Ebml(Main + Main_Offset, UncompressedSize); //Uncompressed size
//Filling
Buffer.Size = Main_Offset + CompressedSize;
Buffer.Content = new int8u[Buffer.Size];
std::memcpy(Buffer.Content, Main, Main_Offset); //File header + compressed data header
std::memcpy(Buffer.Content + Main_Offset, Compressed, CompressedSize); //Compressed data
}
else
{
//Filling
Buffer.Size = Size;
Buffer.Content = new int8u[Buffer.Size];
std::memcpy(Buffer.Content, Main, Size);
}
std::string Data_Raw((const char*)Buffer.Content, Buffer.Size);
std::string Data_Base64(Base64::encode(Data_Raw));
delete[] Main; //Main=NULL;
return Ztring().From_UTF8(Data_Base64);
}
else
{
delete[] Main; //Main=NULL;
return Ztring();
}
}
} //NameSpace
#endif //MEDIAINFO_IBIUSAGE
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