AVITemplate.bt

//------------------------------------
//--- 010 Editor v1.2 Binary Template
//
// Name: AVITemplate.bt
// Original Author: Blaine Lefebvre [bl]
// Contributor: Elias Bachaalany [eb]
// Purpose: Parse an AVI file
//
// Last Updated: 10/02/2006, 04:40 PM
//
// History
// -----------
// [bl] original version: Blaine Lefevre
// 10/02/2006:
// - [eb] Added BITMAPINFO and WAVEFORMATEX proper strfHEADER recognition
// - [eb] Fixed 'idx1' parsing
//------------------------------------


typedef struct
{ 
  WORD  wFormatTag; 
  WORD  nChannels; 
  DWORD nSamplesPerSec; 
  DWORD nAvgBytesPerSec; 
  WORD  nBlockAlign; 
  WORD  wBitsPerSample; 
  WORD  cbSize; 
} WAVEFORMATEX; 

// head structure info
typedef struct 
{
    DWORD  dwMicroSecPerFrame;
    DWORD  dwMaxBytesPerSec;
    DWORD  dwReserved1;
    DWORD  dwFlags;
    DWORD  dwTotalFrames;
    DWORD  dwInitialFrames;
    DWORD  dwStreams;
    DWORD  dwSuggestedBufferSize;
    DWORD  dwWidth;
    DWORD  dwHeight;
    DWORD  dwScale;
    DWORD  dwRate;
    DWORD  dwStart;
    DWORD  dwLength;
} MainAVIHeader;

typedef struct
{
  uint32 biSize;
  uint32 biWidth;
  uint32 biHeight;
  uint16 biPlanes;
  uint16 biBitCount;
  uint32 biCompression;
  uint32 biSizeImage;
  uint32 biXPelsPerMeter;
  uint32 biYPelsPerMeter;
  uint32 biClrUsed;
  uint32 biClrImportant;
} BITMAPINFOHEADER;

typedef struct 
{
  unsigned char rgbBlue;
  unsigned char rgbGreen;
  unsigned char rgbRed;
  unsigned char rgbReserved;
} RGBQUAD;

typedef struct 
{
  BITMAPINFOHEADER bmiHeader;
  RGBQUAD bmiColors;
} BITMAPINFO;

typedef struct 
{
  char id[4];
  uint32 datalen;
  MainAVIHeader data;
} avihHEADER;


// header stream structure info
typedef struct 
{
    char   fccType[4];
    char   fccHandler[4];
    DWORD  dwFlags;
    DWORD  dwReserved1;
    DWORD  dwInitialFrames;
    DWORD  dwScale;
    DWORD  dwRate;
    DWORD  dwStart;
    DWORD  dwLength;
    DWORD  dwSuggestedBufferSize;
    DWORD  dwQuality;
    DWORD  dwSampleSize;
    DWORD  xdwQuality;
    DWORD  xdwSampleSize;
} AVIStreamHeader;

typedef struct 
{
  char id[4];
  uint32  datalen;
  AVIStreamHeader data;
}strhHEADER;


// Generic strfHEADER
typedef struct 
{
  char id[4];
  uint32  datalen;
  if (datalen % 2)
	  char data[datalen+1];
  else
	  char data[datalen];
} strfHEADER;

// strfHEADER with BITMAPINFOHEADER
typedef struct 
{
  char id[4];
  uint32  datalen;
  BITMAPINFOHEADER bmiHeader;
  local int sz = sizeof(bmiHeader);
  if (datalen == (sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD)))
  {
    RGBQUAD bmiColors;
    sz += sizeof(RGBQUAD);
  }
  Printf("left: %d\n", sz);
  char exData[datalen - sz];
} strfHEADER_BIH;


// strfHEADER with WAVEFORMAT
typedef struct 
{
  char id[4];
  uint32  datalen;
  WAVEFORMATEX wave;
  char exData[datalen - sizeof(WAVEFORMATEX)];
} strfHEADER_WAVE;

//
typedef struct 
{
  char id[4];
  uint32  datalen;
  if ( datalen % 2 )
    char data[datalen+1];
  else
    char data[datalen];
} strnHEADER;

//
typedef struct 
{
  char id[4];
  uint32  datalen;
  if ( datalen % 2 )
    char data[datalen+1];
  else
    char data[datalen];
} genericblock;



typedef struct 
{
  char id[4];
  uint32 datalen;
  char type[4];

  if (!Memcmp(type,"hdrl",4))
  {
    avihHEADER avhi;
  }
  else if (!Memcmp(type,"strl",4))
  {
    strhHEADER strh;

    // Printf("->%c%c%c%c\n", strh.data.fccHandler[0], strh.data.fccHandler[1],strh.data.fccHandler[2],strh.data.fccHandler[3]);
    if (Memcmp(strh.data.fccType, "vids", 4) == 0)
    {
      strfHEADER_BIH strf;
    }
    else if (Memcmp(strh.data.fccType, "auds", 4) == 0)
    {
      strfHEADER_WAVE strf;
    }
    else
    {
      strfHEADER strf;
    }
    strnHEADER strn;
  }
  else if (Memcmp(type,"movi",4) == 0)
  {
    local int32 pointer = 0;
    local int32 stop = datalen - 4;
    
    //Printf("stop=%d\n", stop);

    do
    {
      genericblock gb;
      pointer += sizeof(gb);
      //Printf("+%x = %d\n", gb.datalen, pointer);
    } while (pointer != stop);
  }
  else
  {
    char data[datalen-4];
  }
} LISTHEADER;


// junk structure info
typedef struct 
{
  char id[4];
  uint32  datalen;
  if ( datalen % 2 )
    char data[datalen+1];
  else
    char data[datalen];
} JUNKHEADER;


// aviindex structure info
typedef struct 
{
    DWORD  ckid;
    DWORD  dwFlags;
    DWORD  dwChunkOffset;
    DWORD  dwChunkLength;
} AVIINDEXENTRY;

const DWORD AVIINDEXENTRYLEN = 16;

typedef struct 
{
  char id[4];
  uint32  datalen;
  AVIINDEXENTRY data[datalen/AVIINDEXENTRYLEN];
} idx1HEADER;

// root structure info
typedef struct xroot 
{
  char id[4]; // RIFF
  if (root.id[3] == 'X')
  {
    Printf("Motorola format\n");
    BigEndian();
  }
  else
  {
    Printf("Intel format\n");
    LittleEndian();
  }

  uint32  datalen;
  char form[4];

  if (Strcmp(form, "AVI "))
  {
    Warning("Not a valid AVI file");
    return -1;
  }
} ROOT;

local char nheader[4];

ROOT root;

while (!FEof())
{
  ReadBytes(nheader,FTell(), 4);

  if (Memcmp(nheader,"LIST",4) == 0)
  {
    LISTHEADER list;
  }
  else if (Memcmp(nheader, "JUNK",4) == 0)
  {
    JUNKHEADER junk;
  }
  else if (Memcmp(nheader, "idx1",4) == 0)
  {
    idx1HEADER idx1;
  }
  else
  {
    if (!FEof())
      Printf("unknown chunk: %c%c%c%c", nheader[0],nheader[1],nheader[2],nheader[3]);
    return -1;
  }
}