[vorbis-dev] Problem with seek functions,

[charlie wallace]

i use that configuration for vorbis and it works fine for me. win2k sp1 vc6
sp4 both dynamic and static, so its unlikely because of that...

i saw a similar problem a while ago, but it was to do with two versions
of codec.h one had a larger struct than the other, so when the lib was built
it used one, and one the app was built it used the other which caused a
crash in the seeking since a memset overwrote the callback structure
partially causing it to jump to a NULL address when using them.

i can't remember which struct off the top of my head, it was one of the
block ones, i do remember the missing ptr though, it was called internal
and appeared at the end of the struct, it was in one but not the other..

charlie

> From: OmegaDan <omegadan at thehumbleguys.com>
> Reply-To: vorbis-dev at xiph.org
> Date: Sun, 18 Feb 2001 02:56:17 -0800
> To: vorbis-dev at xiph.org
> Subject: Re: [vorbis-dev] Problem with seek functions,
> 
> 
> I actually suspect the bug to be in my platform -- Win2k SP1 with VS6 SP4
> -- I've had a couple other problems with it already (I.E. ov_open causes an
> exception in the kernel when used from vorbisfile dynamic but not
> vorbisfile static).
> 
> Unfourtantley, my studio equiptment is tied to win2k :)
> 
> but thanks for trying to confirm
> 
> OD
> 
> 
> On 14 Feb 2001, Matthijs wrote:
>> Date: 14 Feb 2001 06:14:18 -0800
>> To: vorbis-dev at xiph.org
>> From: Matthijs <creepingdeathnl at metallica.com>
>> Reply-To: vorbis-dev at xiph.org
>> Sender: owner-vorbis-dev at xiph.org
>> Subject: Re: [vorbis-dev] Problem with seek functions,
>> 
>> On Mon, 12 February 2001, OmegaDan wrote:
>> 
>> [snip code]
>> 
>> Hmm, weird.. that does work for me. I only had the trouble that
>> ov_time_tell returned negative infinity
>> after a ov_time_seek to 0 secs. This is my code:
>> 
>> function TMainForm.ReadBuf(Buffer: PChar; Size: Longword; var Time:
>> Single): Longword;
>> var BytesRead, Change: Longword;
>> begin
>> BytesRead := 0;
>> 
>> Time := ov_time_tell(vf^);
>> 
>> if Time < 0 then  // check against NAN, -INF
>> Time := 0;
>> 
>> repeat
>> Change := ov_read(vf^, @Buffer[BytesRead], Size - BytesRead, 0, 2, 1,
>> StreamNumber);
>> BytesRead := BytesRead + Change;
>> until (Change = 0) or (BytesRead = Size);
>> 
>> Result := BytesRead;
>> end;
>> 
>> Windows 98/MSVC++6-Dynamic/Borland Delphi 5.
>> 
>> Matthijs
>> 
>> Only two things are infinite, the universe and human stupidity, and I'm
>> not sure about the former.
>> Albert Einstein (1879 - 1955)
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