I am having trouble using vorbisfiles (under win32) ov_pcm_seek or ov_time_seek (I haven't tried the other functions) ... both return -129 every time I use them (internal error). If I have libvorbis linked statically then the call fails -- if I have it linked dynamically, it causes a GPF in the NT kernel (not sure if these are related or not). The problem is very reproducable (happens every time). I was hoping someone might offer some advice on this matter, I've been looking at this problem for about 5 days now, I've tried beta3 and the nightly from saturday, tried different ogg files, and I've worn a bald spot into my forehead pulling my hair out in frustration ... TIA, dan --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
I'm afraid this e-mail is me being lazy. I'm interested in adapting the
encoder to farm out work to various machines on a network. I'm just
trying to find out if this is going to be trivial. I don't know how the
encoder works but from my very brief glance through the code it would
appear that a state is maintained 'vorbis_dsp_state' that's going to
make my distributed encoding more difficult. Is it worth me delving more
deeply, presumably this state can't be duplicated across all machines?
Thanks,
M
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At 07:11 AM 2/12/01 +0000, you wrote:>I'm afraid this e-mail is me being lazy. I'm interested in adapting the >encoder to farm out work to various machines on a network. I'm just >trying to find out if this is going to be trivial. I don't know how the >encoder works but from my very brief glance through the code it would >appear that a state is maintained 'vorbis_dsp_state' that's going to >make my distributed encoding more difficult. Is it worth me delving more >deeply, presumably this state can't be duplicated across all machines? >It's not neccesarily impossible, but it IS very difficult. Jeff Squyres has been working on something to do this, I'm not sure of the current status. For farming out encoding, you're generally much better off just passing a single file to each machine, and encode multiple files at once. This is simple to implement. Michael --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
On 12 Feb 2001, Mad Dog wrote:> I'm afraid this e-mail is me being lazy. I'm interested in adapting > the encoder to farm out work to various machines on a network. I'm > just trying to find out if this is going to be trivial. I don't know > how the encoder works but from my very brief glance through the code > it would appear that a state is maintained 'vorbis_dsp_state' that's > going to make my distributed encoding more difficult. Is it worth me > delving more deeply, presumably this state can't be duplicated across > all machines?I've done a bunch of work on this. I started with multi-threading, with the idea of spreading across a network as a straightforward extension. http://www.mpi.nd.edu/~jsquyres/vorbis/ However, about 2 weeks ago I got heavily involved in the software release cycle of a different package, and haven't been able to work on it since. I started the docs pages, but a) didn't finish them, and b) didn't link them from anywhere. With those disclaimers, feel free to check out: http://www.mpi.nd.edu/~jsquyres/details/ The code is currently in a not-quite-finished stage yet. Before I got interrupted, I ran into problems with sharing the vorbis_dsp_state instance. Monty suggested some fixes, but I haven't gotten to try them yet. {+} Jeff Squyres {+} squyres@cse.nd.edu {+} Perpetual Obsessive Notre Dame Student Craving Utter Madness {+} "I came to ND for 4 years and ended up staying for a decade" --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.