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Vorbis stream with no Ogg header

 
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PostPosted: Fri Mar 03, 2006 5:41 pm    Post subject: Vorbis stream with no Ogg header Reply with quote

Hi!
Last night I broadcasted signal grabbed from my soundcard's line-in. I used OddCast+IceCast. OddCast was set to save archive of stream to disk. After hour IceCast crashed resulting in OddCast reconnect. After the broadcast I found two dumped OGG files, but first of them had no OGG container header (no "vorbis" text present in header). Second file is OK. If I'm getting it right, Vorbis within Ogg container has the following format:

Code:
OggS <ogg_header> OggS <vorbis_header> OggS <vorbis_data> OggS <vorbis_data> OggS <vorbis_data> ...


but I ended only with

Code:
OggS <vorbis_data> OggS <vorbis_data> OggS <vorbis_data> ...


I would like to know if there is any chance to reconstruct header of the first file (put it again in another Ogg container) or how to play it or convert it to another format.

Thanks in advance ...

PS: I already tried ogginfo and vcut with no success.
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karlH
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Joined: 13 Jun 2005
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PostPosted: Fri Mar 03, 2006 7:04 pm    Post subject: Reply with quote

It's not clear from your description whether it can be done easily. If the serial number and stream settings match then you could copy the headers from one and append the audio pages.

karl.
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PostPosted: Sun Mar 05, 2006 11:27 am    Post subject: Reply with quote

karlH wrote:
It's not clear from your description whether it can be done easily. If the serial number and stream settings match then you could copy the headers from one and append the audio pages.
karl.

already tried hexeditor with no success ...
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