[vorbis] Seeking in a saved stream; or,Why isn't thatsucker valid?

[Joel]

2002-02-12 01:18:07, Joel <joefor-1 at student.luth.se> wrote:

>
>>>I realize that I may have unintentionally been misleading you by leaving some information out.  That error report from 
>ogginfo keeps going, repeating the same 3 errors (as above) over and over again.  It ends after a 
>stream_truncated=true, not giving a final header_integrity=fail.  (Perhaps because there's not another packet?)  Then it 
>reports a total playtime of 0.
>>
>>Yes, this is ogginfo's normal "argh!" response to any sort of stream
>>inconsistency - it gets the rest of the stream completely wrong. Don't
>>worry about it. There's no reasons to suspect your stream is damaged in
>>any way.
>>
>>Michael
>>
>
>Ogginfo behaved nice to me :-) At least once. But as stated earlier in this thread it shouldn't be trusted too much.
>Just for reference, I saved a streamed ogg and got this:
>
>---------------------------------
>E:\>ogginfo radio4.ogg
>filename=radio4.ogg
>
>serial=1037942235
>header_integrity=pass
>vendor=Xiphophorus libVorbis I 20011217
>version=0
>channels=2
>rate=44100
>bitrate_upper=none
>bitrate_nominal=96016
>bitrate_lower=none
>stream_integrity=pass
>bitrate_average=65
>length=182692.561270
>playtime=3044:52
>stream_truncated=true
>
>total_length=182692.561270
>total_playtime=3044:52                           <----------------- what winamp also thinks.
>
>E:\>
>----------------------------------
>
>While this looks allright, there appears to be some errors:
>
>Obviously playtime/total lenght is way up. (true time is 1.50)
>Average bitrate was reported 96kbps in winamp _when recording_, but 88kbps when playing. 
>(Filesize is 1 501 963 bytes.) 
>
>Seeking causes the track to restart except when seeking to the very end, which will play the last piece (packet?) of 
the 
>stream. Odd.
>
>On two other (much shorter) samples, oggenc went wild and filled the console just like Stephen reported. Guess I was 
>lucky.
>
>What do you think? Could the problem be Winamp specific? I'm using v1.17d vorbis plugin for winamp. 
>
>-Joel
>
>
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