private static SmackerHeader ReadHeader(Stream s)
{
SmackerHeader smk = new SmackerHeader();
int i;
/* read and check header */
smk.Signature = Util.ReadDWord(s);
if (smk.Signature != Util.MakeTag('S', 'M', 'K', '2') && smk.Signature != Util.MakeTag('S', 'M', 'K', '4'))
throw new InvalidDataException("Not an SMK stream");
smk.Width = Util.ReadDWord(s);
smk.Height = Util.ReadDWord(s);
smk.NbFrames = Util.ReadDWord(s);
smk.Pts_Inc = (int)Util.ReadDWord(s);
smk.Fps = CalcFps(smk);
smk.Flags = Util.ReadDWord(s);
for (i = 0; i < 7; i++)
smk.AudioSize[i] = Util.ReadDWord(s);
smk.TreesSize = Util.ReadDWord(s);
smk.NMap_Size = Util.ReadDWord(s);
smk.MClr_Size = Util.ReadDWord(s);
smk.Full_Size = Util.ReadDWord(s);
smk.Type_Size = Util.ReadDWord(s);
for (i = 0; i < 7; i++)
smk.AudioRate[i] = Util.ReadDWord(s); ;
smk.Dummy = Util.ReadDWord(s);
/* setup data */
if (smk.NbFrames > 0xFFFFFF)
throw new InvalidDataException("Too many frames: " + smk.NbFrames);
return smk;
}
private static double CalcFps(SmackerHeader smk)
{
if ((int)smk.Pts_Inc > 0)
{
return(1000.0 / (int)smk.Pts_Inc);
}
else if ((int)smk.Pts_Inc < 0)
{
return(100000.0 / (-(int)smk.Pts_Inc));
}
else
{
return(10.0);
}
}
private static SmackerHeader ReadHeader(Stream s)
{
SmackerHeader smk = new SmackerHeader();
int i;
/* read and check header */
smk.Signature = Util.ReadDWord(s);
if (smk.Signature != Util.MakeTag('S', 'M', 'K', '2') && smk.Signature != Util.MakeTag('S', 'M', 'K', '4'))
{
throw new InvalidDataException("Not an SMK stream");
}
smk.Width = Util.ReadDWord(s);
smk.Height = Util.ReadDWord(s);
smk.NbFrames = Util.ReadDWord(s);
smk.Pts_Inc = (int)Util.ReadDWord(s);
smk.Fps = CalcFps(smk);
smk.Flags = Util.ReadDWord(s);
for (i = 0; i < 7; i++)
{
smk.AudioSize[i] = Util.ReadDWord(s);
}
smk.TreesSize = Util.ReadDWord(s);
smk.NMap_Size = Util.ReadDWord(s);
smk.MClr_Size = Util.ReadDWord(s);
smk.Full_Size = Util.ReadDWord(s);
smk.Type_Size = Util.ReadDWord(s);
for (i = 0; i < 7; i++)
{
smk.AudioRate[i] = Util.ReadDWord(s);
}
;
smk.Dummy = Util.ReadDWord(s);
/* setup data */
if (smk.NbFrames > 0xFFFFFF)
{
throw new InvalidDataException("Too many frames: " + smk.NbFrames);
}
return(smk);
}
private static double CalcFps(SmackerHeader smk)
{
if ((int)smk.Pts_Inc > 0)
return 1000.0 / (int)smk.Pts_Inc;
else if ((int)smk.Pts_Inc < 0)
return 100000.0 / (-(int)smk.Pts_Inc);
else
return 10.0;
}
