On Fri, 13 Jun 2008, Lennart Poettering wrote: > c) snd_pcm_hw_params_get_buffer_size() - snd_pcm_update_avail() > returns the fill level, but only works on mmap. snd_pcm_update_avail() works (or should work) also for standard r/w ops. > d) The snd_pcm_hw_params_get_fifo_size() was supposed to return the > 'difference' between a) and c), but was never actually used > for that. Nope. It's maximum latency added by an extra fifo/queue (it does not depend if it's hw or sw fifo). For variable fifo size, we need to extend API. Jaroslav ----- Jaroslav Kysela <perex@xxxxxxxx> Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
