I am not sure I have the context entirely, but would like to add the following:
Trying to "remote" the audio from ltsp server to client works only in some cases. I tried in vain for a few days to get Skype and kphone working. I used esddsp as the "shim" to do the job. It is extremely frustrating. The ioctls that the application issues are not all implemented correctly. Also, several applications use "select" system call to see f data is available to read from the audio device. These may or may not work correctly. I got kphone working as a local application and that solved the problem. I believe that for multimedia applications, running locally is a very good method, sometimes the only available option. -Sreenath --- Scott Balneaves <[EMAIL PROTECTED]> wrote: > On Sat, Sep 23, 2006 at 11:19:52AM +0800, > [EMAIL PROTECTED] wrote: > > > Congratulations. �You just described exactly > what esd and the esd shim > > > basically does. > > > > So skype, mythtv, sound in browsers just work? > They don't. So this is the > > reason for my thoughts ... > > That's right, they don't. But what you described is > almost exactly what > esd + the ld.so shim do. So your method won't work > either. > > > > Writing to /dev/dsp is evil. > > > Writing to /dev/mixer is evil. > > > Writing to /dev/midi is evil. > > Why evil? It does work on my limited testing. The > app considers /dev/midiBLA > > to be real. The fact that it's remote is cute. > > midi's REAL simple: it's essentially a serial port. > It's not cranking > out the sustained packet bandwidth that sound is. > Tell me: how do you > propose to handle sound syncing issues? > > Lets say you're running a flash animation, with > sound. Network > latency's a little high, and the sound's getting out > of sync. How do > you communicate that back to a program that thinks > it's talking directly > to the sound card via /dev/dsp? > > It's like driving a car via remote control and a > vr-helmet. > Everything's ok, so long as nothing gets out of > sync. But the fact > remains, if things get wonky, there's no way you can > roll down the > window and have a look around :) > > > > ALL of them, BY DEFINITION imply that you're > expecting the sound > > > resources to be be on the same box as the > program making the sounds. > > > Then, after the fact, you're trying to somehow, > magically hijack the > > > stream, and make it appear somewhere else. �It's > not workable. > > Again please indulge my ignorance. I do not > contest your view, just don't > > understand. :-) > > See above. Inserting a network which does NOT > guarentee delivery times, > in between a program and a soundcard which EXPECT > guarenteed delivery > times is going to cause problems. Better that the > program should > actually use a library that has callbacks to notify > the program when > things are getting laggy, and allow the program to > do something sensible > about it. > > > And eg skype totally ignore you. > > *shrugs*, then don't use skype. Install an asterisk > server and use > Ekiga, that speaks gstreamer. Or kphone. Or, if > you're married to > skype, install it as a local app. There's a ton of > options. > > Either way you slice it, it shouldn't stop you from > implementing the > solution properly. > > Scott > > -- > Scott L. Balneaves | "Looking beyond the embers of > bridges glowing behind us > Systems Department | To a glimpse of how green it > was on the other side..." > Legal Aid Manitoba | -- Pink Floyd "High Hopes" > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get > the chance to share your > opinions on IT & business topics through brief > surveys -- and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _____________________________________________________________________ > Ltsp-discuss mailing list. To un-subscribe, or > change prefs, goto: > > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > For additional LTSP help, try #ltsp channel on > irc.freenode.net > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
