[vorbis-dev] Cannot get ogm infos

[Thierry FELIP]

Help is needed !

I cannot extract infos from video stream in an .ogm file using the
VorbisFile library.

It seems that I can only open .ogg files (audio)! When I call
"ov_open_callbacks" it generates a message error.

Here is my procedure in pascal:
code:
  _____  

procedure GetOGMInfo;
var
  F : TFileStream;
  vf: OggVorbis_File;
  res: integer;
begin
  F := TFileStream.Create("OGM FileName", fmOpenRead);
 
  res := ov_open_callbacks(F, vf, nil, 0, ops_callbacks);
  if res < 0 then // always return -132 !! No Vorbis info/file   
  begin
    F.Free;
    exit;
  end;
 
  **** code to get info ****
 
end;
  _____  

<p><p>What call must I use to open the "FileName".ogm file & get the video
stream info (duration, bitrate, etc...) ?

<p><p>--- >8 ----
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