ogg dev - Jun 2009 - ogg_stream_reset() question

Hi Ogg experts!

My current work is catenating packets from several ogg files to the
one long stream, so I'd like to create stream once, and then reset it
just before reading codec headers from every new file. However, after
calling

ogg_stream_reset_serialno(ogg_stream_state *os, int serialno),

bos page is not pushed in stream since it calls

ogg_stream_reset(ogg_stream_state *os),

which set os->pageno to -1, while ogg_stream_init(ogg_stream_state
*os, int serialno) sets it to 0. If I call ogg_stream_reset(), and the
explicitly set os->pageno = 0, no problem, the consequent pages are
pushed into stream.

So the question - why ogg_stream_reset() sets pageno to -1 instead to
zero, if it does not make stream ready to accept pages from new file?

Much thanks in advance!

--
Timur.

2009/6/18 Timur Elzhov <elzhov at gmail.com>:
> Hi Ogg experts!
>
> My current work is catenating packets from several ogg files to the
> one long stream, so I'd like to create stream once, and then reset it
> just before reading codec headers from every new file. However, after
> calling
>
> ogg_stream_reset_serialno(ogg_stream_state *os, int serialno),
>
> bos page is not pushed in stream since it calls
>
> ogg_stream_reset(ogg_stream_state *os),
>
> which set os->pageno to -1, while ogg_stream_init(ogg_stream_state
> *os, int serialno) sets it to 0. If I call ogg_stream_reset(), and the
> explicitly set os->pageno = 0, no problem, the consequent pages are
> pushed into stream.
>
> So the question - why ogg_stream_reset() sets pageno to -1 instead to
> zero, if it does not make stream ready to accept pages from new file?
If you are just concatenating ("chaining") files together you
don't
need to reset.

Try ogg_stream_clear(), as in vorbis/examples/decoder_example.c.

cheers,

Conrad.