[Ffmpeg-devel] Re: Indeo 2

Diego Biurrun diego
Thu Apr 14 11:47:16 CEST 2005

On Thu, Apr 14, 2005 at 06:12:33AM +0300, Kostya wrote:
> >Kostya wrote:
> >> I uploaded puppy-raw.avi created from windows decoder (ir21_r.dll) to
> >> incoming
> >
> >With what program did you create it?  As I said, I'm looking for a program
> >that can actually play Indeo 2 content.  MPlayer can't, although I do not
> >have the DLL you mention.  Could you send it over?
> Yes, uploaded it into incoming/, but it is also 16-bit driver :(
> Used to create with Win98+VirtualDub+ir21_r.dll (the last was in package 
> with Intel Indeo codecs).

OK, I put the driver in the RT21 dir.

Do you know any player that can play Indeo 2 on Windows?  Which Indeo
codec package did you stumble across?  I found the following:


It contains IR21.DLL, dunno if it is the same one, I'm on the run now
and will investigate later.

BTW, if you upload something to MPlayer FTP, please also add a .txt file
with the same name so we know what it is.  Otherwise chances are it will
be deleted without investigation.

> >The video you uploaded does not have the coarse blocks on the boy's 
> pullover
> >I was talking about in the other mail, so I guess this is still a bug in
> >your decoder.
> >
> I still suspect that's MPlayer colorspace conversion removes blockiness.
> Try ffmpeg -i file -an -vcodec rawvideo -pix_fmt yuv410p -vtag YVU9 raw.avi
> I tried on puppy and player result in MPlayer (got swapped U and V 
> fields but that's OK) and got _NO_ blocks. So it must be MPlayer.

Hmm, I'm still sceptical since the first version of your decoder did not
produce the blocks IIRC.  Unfortunately I do not have it around to
compare right now.  Could you please resend it to me (in private) so I
can compare?


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