At Fri, 11 Jul 2003 17:28:08 +0200, Giuliano Pochini wrote: > > On Thu, 10 Jul 2003 16:31:28 +0100 > James Courtier-Dutton <[EMAIL PROTECTED]> wrote: > > > Hi, > > > > When an application reads the "avail" or "delay" pcm values: - > > 1) how accurate are they? > > 2) does the accuracy depend on the sound card driver being used. > > Worst case accuracy is about one period AFAIK. It depends on the sound chip > because the low level driver reads the DMA pointer (or something) from some > hardware register or it can know the DMA pointer when it receives an interrupt > at the end of a period.
yes. if the accuracy is in period size, at least it should work somehow. e.g. the time-slider of a player might not move so smooth but it must not be critical. Takashi ------------------------------------------------------- This SF.Net email sponsored by: Parasoft Error proof Web apps, automate testing & more. Download & eval WebKing and get a free book. www.parasoft.com/bulletproofapps1 _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
