On Tue, 15 Sep 2009, Lubomir Rintel wrote:

At least some drivers seem to allow a single period and those which don't would correct us anyway. Moreover, Pulseaudio with tsched sets this frequently.

I'm afraid, but this patch is not enough. At least chunk_size should be less than buffer_size otherwise you'll get underrun immediately.

Jaroslav

---

aplay/aplay.c | 5 ----- 1 files changed, 0 insertions(+), 5 deletions(-)

diff --git a/aplay/aplay.c b/aplay/aplay.c index c7c82a1..4fa36cb 100644 --- a/aplay/aplay.c +++ b/aplay/aplay.c @@ -1044,11 +1044,6 @@ static void set_params(void) } snd_pcm_hw_params_get_period_size(params, &chunk_size, 0); snd_pcm_hw_params_get_buffer_size(params, &buffer_size);

• if (chunk_size == buffer_size) {

• error(_("Can't use period equal to buffer size (%lu == %lu)"),
  

•       chunk_size, buffer_size);
  

• exit(EXIT_FAILURE);
  

• } snd_pcm_sw_params_current(handle, swparams); if (avail_min < 0) n = chunk_size;

----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.