[Openal] Problems with streaming

[Jeremy Henry]

Thanks for reply Dan,
I've been out of touch all weekend just moved and until tonight no internet. 
  By getting stuck I mean it will play through all the buffers I would 
create and then get caught on playing only the last buffer playing the same 
data over and over.  I am running this in Windows XP and I am just using the 
basic OpenAL SDK so no 'device' if thats what you mean.  How would I check 
for buffer starvation too?  I have been analyzing the problem and I get back 
the error code a003 (AL_INVALID_VALUE) when I try to add a new buffer to the 
stream.  Now I know that the size parameter and data are not null so the 
buffer must still be thought to be in use.  Shouldn't the 
alSourceUnqueueBuffers function release that buffer from the source?  As you 
see in the update function I immediately try to fill the buffer I unqueue 
but I will get the error message.  I did a little bit of a hack to only 
queue up all the buffers once as I do in the playback function with a 
'static bool bOnce' hack and in that case it will play through the entire 
track but it is very skippy still getting the a003 message until all the 
buffers have played then it fills each one.  Hopefully all this makes some 
sense but I will try to clarify anything if I can.


From: Daniel PEACOCK <dpeacock at creativelabs.com>
To: openal at opensource.creative.com
Subject: Re: [Openal] Problems with streaming
Date: Fri, 16 Jun 2006 14:37:46 -0700





Hi Jeremy,

I didn't see any obvious problems in the code ... except that you are not
checking for buffer starvation (i.e you are assuming the Source always has
enough data queued on it).

What OS are you using ?  And if appropriate, what OpenAL device ?

I'm not sure what you mean by "gets stuck on playing the second buffer" ...
do you mean that you don't hear the 2nd buffer, or the 2nd buffer is never
processed, or something different ?

Thanks,

Dan

Notice
The information in this message is confidential and may be legally
privileged.  It is intended solely for the addressee.  Access to this
message by anyone else is unauthorized.  If you are not the intended
recipient,  any disclosure,  copying or distribution of the message,  or
any action taken by you in reliance on it,  is prohibited and may be
unlawful.  If you have received this message in error,  please delete it
and contact the sender immediately.  Thank you.




              "Jeremy Henry"
              <jeremy_h at hotmail
              .com>                                                      To
              Sent by:                  openal at opensource.creative.com
              openal-bounces at op                                          cc
              ensource.creative
              .com                                                  Subject
                                        [Openal] Problems with streaming

              06/16/2006 10:32
              AM







I have the code compiling and running without crash the music even sort of
plays.  The problem is that the first buffer that is loaded plays and then
it gets stuck on playing the second buffer.  Here is a link to a post a
made
for easier viewing of the code.  Also is there a channel in irc that I
could
go for real-time help?
Thanks,
Jeremy

http://www.devmaster.net/forums/showpost.php?p=34918&postcount=74


_______________________________________________
Openal mailing list
Openal at opensource.creative.com
http://opensource.creative.com/mailman/listinfo/openal

ForwardSourceID:NT00032DFE

_______________________________________________
Openal mailing list
Openal at opensource.creative.com
http://opensource.creative.com/mailman/listinfo/openal