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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.
*/
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//
// Format:
// * File header
// * MPEG Audio stream
// * MPEG Video stream
//
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//---------------------------------------------------------------------------
// Pre-compilation
#include "MediaInfo/PreComp.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
#include "MediaInfo/Setup.h"
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
#if defined(MEDIAINFO_DPG_YES)
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
#include "MediaInfo/Multiple/File_Dpg.h"
#if defined(MEDIAINFO_MPEGV_YES)
#include "MediaInfo/Video/File_Mpegv.h"
#endif
#if defined(MEDIAINFO_MPEGA_YES)
#include "MediaInfo/Audio/File_Mpega.h"
#endif
//---------------------------------------------------------------------------
namespace MediaInfoLib
{
//***************************************************************************
// Constructor/Destructor
//***************************************************************************
//---------------------------------------------------------------------------
File_Dpg::File_Dpg()
{
//Data
Parser=NULL;
}
//---------------------------------------------------------------------------
File_Dpg::~File_Dpg()
{
delete Parser; //Parser=NULL;
}
//***************************************************************************
// Buffer - File offset
//***************************************************************************
//---------------------------------------------------------------------------
bool File_Dpg::FileHeader_Begin()
{
//Element_Size
if (Buffer_Size<0x14)
return false; //Must wait for more data
if ( CC4(Buffer )!=0x44504730 //"DPG0"
|| LittleEndian2int32u(Buffer+0x10)!=0) //Zero
{
Reject("DPG");
return false;
}
//All should be OK...
return true;
}
//---------------------------------------------------------------------------
void File_Dpg::FileHeader_Parse()
{
//Parsing
int32u FrameCount, FrameRate, SamplingRate;
Skip_C4( "Signature");
Get_L4 (FrameCount, "Frame count");
Get_L4 (FrameRate, "Frame rate"); Param_Info2(FrameRate/0x100, " fps");
Get_L4 (SamplingRate, "Sampling rate");
Skip_L4( "0x00000000");
Get_L4 (Audio_Offset, "Audio Offset");
Get_L4 (Audio_Size, "Audio Size");
Get_L4 (Video_Offset, "Video Offset");
Get_L4 (Video_Size, "Video Size");
FILLING_BEGIN();
Accept("DPG");
Fill(Stream_General, 0, General_Format, "DPG");
Stream_Prepare(Stream_Video);
Fill(Stream_Video, 0, Video_FrameRate, (float)(FrameRate/0x100), 3);
Fill(Stream_Video, 0, Video_FrameCount, FrameCount);
Fill(Stream_Video, 0, Video_StreamSize, Video_Size);
Stream_Prepare(Stream_Audio);
Fill(Stream_Audio, 0, Audio_SamplingRate, SamplingRate);
Fill(Stream_Audio, 0, Audio_StreamSize, Audio_Size);
//Positionning
#if defined(MEDIAINFO_MPEGA_YES)
Parser=new File_Mpega();
Open_Buffer_Init(Parser);
GoTo(Audio_Offset, "DPG");
#elif defined(MEDIAINFO_MPEGV_YES)
Audio_Size=0;
Parser=new File_Mpegv();
Open_Buffer_Init(Parser);
GoTo(Video_Offset, "DPG");
#else
Finish("DPG");
#endif
FILLING_END();
}
//***************************************************************************
// Buffer - Global
//***************************************************************************
//---------------------------------------------------------------------------
void File_Dpg::Read_Buffer_Unsynched()
{
if (Parser)
Parser->Open_Buffer_Unsynch();
}
//---------------------------------------------------------------------------
void File_Dpg::Read_Buffer_Continue()
{
if (!Parser)
return; //Not ready
#if defined(MEDIAINFO_MPEGA_YES) || defined(MEDIAINFO_MPEGV_YES)
if (Audio_Size)
{
#if defined(MEDIAINFO_MPEGA_YES)
Open_Buffer_Continue(Parser, (size_t)((File_Offset+Buffer_Size<Audio_Offset+Audio_Size)?Buffer_Size:(Audio_Offset+Audio_Size-File_Offset)));
if (Parser->Status[IsAccepted])
{
Parser->Open_Buffer_Unsynch();
Finish(Parser);
Merge(*Parser, Stream_Audio, 0, 0);
#if defined(MEDIAINFO_MPEGV_YES)
Audio_Size=0;
Data_GoTo(Video_Offset, "DPG");
delete Parser; Parser=new File_Mpegv();
Open_Buffer_Init(Parser);
#else
Finish("DPG");
#endif
}
#endif
}
else
{
#if defined(MEDIAINFO_MPEGV_YES)
Open_Buffer_Continue(Parser, (size_t)((File_Offset+Buffer_Size<Video_Offset+Video_Size)?Buffer_Size:(Video_Offset+Video_Size-File_Offset)));
if (Parser->Status[IsAccepted])
{
//Merging
Parser->Open_Buffer_Unsynch();
Finish(Parser);
Merge(*Parser, Stream_Video, 0, 0);
Finish("DPG");
}
#endif
}
#endif //defined(MEDIAINFO_MPEGA_YES) || defined(MEDIAINFO_MPEGV_YES)
//Positioning
Buffer_Offset=Buffer_Size; //We have already parsed this data
}
} //NameSpace
#endif //MEDIAINFO_DPG_YES
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