Jaroslav Kysela wrote: > On Wed, 21 Apr 2010, Stefan Schoenleitner wrote: >> I suspect that this is a bug in ALSA ? > > It might be. Could you post snd_pcm_dump() when you read less frames? Sure, here's the output: ----------------------------------------------------------------- snd_pcm_avail_update(capture): 11 demangled poll: POLLIN on capture device could not read from capture device: Resource temporarily unavailable ALSA <-> PulseAudio PCM I/O Plugin Its setup is: stream : CAPTURE access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 1 rate : 8000 exact rate : 8000 (8000/1) msbits : 16 buffer_size : 640 period_size : 160 period_time : 20000 tstamp_mode : NONE period_step : 1 avail_min : 160 period_event : 0 start_threshold : 160 stop_threshold : 320 silence_threshold: 0 silence_size : 0 boundary : 5764607523034234880 ----------------------------------------------------------------- As you can see I'm using pulseaudio. The version I'm using is 1:0.9.14-0ubuntu20 (on ubuntu jaunty). For testing purposes I increased the period size to 320 so that the program works on my hardware sound card "hw". It turned out that the program is working fine there and the poll() behavior is as it should be. cheers, stefan _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
