FLVTemplate.bt

//-----------------------------------
//--- 010 Editor v3.0 Binary Template
//
// File:     FLVTemplate.bt
// Author:   lafei(indep@263.net)
// Revision: 2.1
// Purpose:  Defines a template for
//    parsing FLV files.
//-----------------------------------

// Define structures used in FLV files

typedef struct {
    CHAR    signature[3];	//"FLV"
    UBYTE   version;
    UBYTE   dummy : 5;
    UBYTE   audio : 1;		//1 if audio present
    UBYTE   dummy2 : 1;
    UBYTE   video : 1;		//1 if video present
    DWORD   dataoffset;		//in abs. file offset
    DWORD   zero;		//previous tag size
} HEADER;

local UINT taglen;

typedef struct {
    UINT    type : 8;
    UINT    datasize : 24;
    UINT    timestamp : 24;
    UINT    timestamphi : 8;
    UINT    streamid : 24;
    taglen = datasize - 1;
    Printf("tag length: %x\n",taglen);
    if(type==8)	//audio
    {
        UINT fmt : 4;
        UINT sr : 2;
        UINT bits : 1;
        UINT channels : 1;
        if(fmt==10)
        {
            --taglen;
            UBYTE frmtype;
        }
    }
    else if(type==9)//video
    {
        UINT frmtype : 4;
        UINT codecid : 4;
        if(codecid==7)
        {
            taglen -= 4;
            UINT pkttype : 8;
            UINT compotime : 24;
        }
    }
    else if(type==18)//script
    {
        UINT fristbyte : 8;
    }
    UBYTE data[taglen];
    UINT lastsize;	//last tag size

    //for debugging
    //Printf("lastsize: %x\n",lastsize);
    //Printf("Pos: %x\n",FTell());
} Tag;

BigEndian();
SetBackColor( cLtGray );
HEADER hdr;

// Check for header
if( hdr.signature != "FLV" )
{
    Warning( "File is not a FLV. Template stopped." );
    return -1;
}

if( hdr.version != 1 )
{
    Warning( "Unsupported FLV version. Template stopped." );
    return -1;
}

// Define the bytes of the data
SetBackColor( cNone );

while( !FEof() )
{
    Tag tag;
}