2010/4/24 Stefan Schoenleitner <dev.c0debabe@xxxxxxxxx> > Raymond Yau wrote: > >> > >> > > Is it possible to post the output of your program when using your sound > card > > "hw" since your program failed with XRUN (broken pipe) on my two sound > cards > > ? > > > Sure, no problem. > > However, I had to change 2 settings to get it working on my soundcard: > > * change period size from 160 to 320, as my soundcard does not support a > period size of 160 frames > > * change buffer size from 2 periods (1280 bytes) to 1 period (640 > bytes), as my soundcard only supports a buffersize being equal to one > period > > > After that the program works fine and runs forever (see below). > > I'm looking forward to test it on my embedded target as well (with the > original settings). > If required I can post the output of that as well. > > cheers, > stefan > > > ------------------------------------------------------------------------------- > $ ./duplex hw > could not sched_setscheduler: Operation not permitted > PCM format is signed, linear, LE with 16 bits > PCM rate 8000 - 48000 Hz > PCM period size: 192 - 16384 > PCM buffer size: 640 - 640 > calculated buffer size: 640 > avail min: 320 > avail min after setup: 320 > start threshold: 320 frames > stop threshold: 640 frames > PCM format is signed, linear, LE with 16 bits > PCM rate 4000 - 96000 Hz > PCM period size: 32 - 32768 > PCM buffer size: 320 - 32640 > calculated buffer size: 640 > avail min: 320 > avail min after setup: 320 > start threshold: 320 frames > stop threshold: 640 frames > capture fds: 1, playback fds: 1 > capture poll fd: 4, playback poll fd: 5 > capture struct: fd: 4, events: POLLIN POLLERR , revents: 0 > playback struct: fd: 5, events: POLLOUT POLLERR , revents: 0 > capture avail min: 320 > playback avail min: 320 > snd_pcm_avail_update(capture): 0 > demangled poll: on capture device > snd_pcm_avail_update(playback): 640 > demangled poll: POLLOUT on playback device > wrote 320 frames > snd_pcm_avail_update(capture): 0 > demangled poll: on capture device > snd_pcm_avail_update(playback): 320 > demangled poll: POLLOUT on playback device > wrote 320 frames > snd_pcm_avail_update(capture): 320 > demangled poll: POLLIN on capture device > read 320 frames > hexdump(): 640 bytes > 0000 fe ff fe ff fe ff fe ff ff ff fe ff fe ff ff ff > 0010 fe ff ff ff ff ff ff ff fe ff fe ff fe ff ff ff > 0020 ff ff fe ff fe ff ff ff ff ff ff ff ff ff ff ff > 0030 ff ff fe ff fe ff ff ff ff ff fe ff ff ff fe ff > 0040 fe ff fe ff fe ff ff ff ff ff fe ff fe ff ff ff > 0050 ff ff ff ff fe ff fe ff fe ff ff ff ff ff fe ff > 0060 fe ff ff ff ff ff fe ff fe ff ff ff ff ff fe ff > 0070 ff ff fe ff fe ff ff ff fe ff fe ff ff ff fe ff > 0080 fe ff ff ff ff ff ff ff fe ff fe ff fe ff ff ff > 0090 ff ff fe ff ff ff ff ff fe ff fe ff ff ff fe ff > 00a0 ff ff ff ff fe ff fe ff ff ff fe ff fe ff ff ff > 00b0 ff ff fe ff fe ff ff ff ff ff ff ff ff ff ff ff > 00c0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff fe ff > 00d0 ff ff ff ff fe ff fe ff fe ff ff ff ff ff fe ff > 00e0 fe ff fe ff ff ff ff ff fe ff fe ff ff ff fe ff > 00f0 ff ff ff ff ff ff ff ff ff ff fe ff ff ff ff ff > 0100 fe ff fe ff fe ff fe ff fe ff ff ff ff ff fe ff > 0110 ff ff ff ff fe ff fe ff ff ff ff ff fe ff fe ff > 0120 ff ff ff ff fe ff fe ff ff ff ff ff fe ff fe ff > 0130 fe ff ff ff fe ff ff ff fe ff fe ff fe ff fe ff > 0140 ff ff fe ff fe ff ff ff ff ff fe ff fe ff ff ff > 0150 fe ff fe ff fe ff fe ff ff ff fe ff ff ff ff ff > 0160 fe ff fe ff ff ff fe ff fe ff ff ff ff ff fe ff > 0170 ff ff ff ff ff ff ff ff fe ff ff ff ff ff fe ff > 0180 fe ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > 0190 ff ff fe ff fe ff ff ff ff ff ff ff ff ff ff ff > 01a0 ff ff ff ff fe ff fe ff fe ff ff ff ff ff fe ff > 01b0 fe ff fe ff ff ff fe ff fe ff ff ff ff ff ff ff > 01c0 ff ff ff ff ff ff ff ff ff ff ff ff fe ff fe ff > 01d0 fe ff fe ff fe ff ff ff ff ff fe ff fe ff fe ff > 01e0 fe ff ff ff ff ff ff ff fe ff fe ff ff ff ff ff > 01f0 fe ff fe ff ff ff ff ff ff ff ff ff ff ff fe ff > 0200 fe ff ff ff ff ff ff ff ff ff ff ff ff ff fe ff > 0210 ff ff ff ff fe ff fe ff ff ff ff ff ff ff ff ff > 0220 ff ff fe ff fe ff ff ff ff ff ff ff fe ff ff ff > 0230 ff ff ff ff fe ff ff ff ff ff ff ff ff ff ff ff > 0240 ff ff ff ff ff ff ff ff ff ff fe ff fe ff ff ff > 0250 ff ff fe ff ff ff ff ff ff ff ff ff ff ff fe ff > 0260 fe ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > 0270 fe ff ff ff ff ff fe ff fe ff ff ff ff ff ff ff > > snd_pcm_avail_update(playback): 320 > demangled poll: on playback device > snd_pcm_avail_update(capture): 0 > demangled poll: on capture device > snd_pcm_avail_update(playback): 320 > demangled poll: POLLOUT on playback device > wrote 320 frames > snd_pcm_avail_update(capture): 320 > demangled poll: POLLIN on capture device > read 320 frames > hexdump(): 640 bytes > 0000 ff ff ff ff fe ff ff ff ff ff ff ff ff ff ff ff > 0010 fe ff fe ff ff ff ff ff fe ff ff ff ff ff ff ff > 0020 ff ff ff ff fe ff ff ff ff ff fe ff ff ff ff ff > 0030 fe ff fe ff ff ff fe ff fe ff ff ff ff ff fe ff > 0040 fe ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > 0050 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > 0060 ff ff fe ff fe ff ff ff ff ff ff ff ff ff ff ff > 0070 ff ff fe ff fe ff fe ff ff ff ff ff ff ff fe ff > 0080 fe ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > 0090 ff ff ff ff ff ff ff ff fe ff fe ff ff ff fe ff > 00a0 ff ff fe ff fe ff ff ff ff ff ff ff ff ff fe ff > 00b0 fe ff fe ff fe ff fe ff fe ff fe ff ff ff ff ff > 00c0 ff ff ff ff ff ff fe ff ff ff ff ff ff ff fe ff > 00d0 fe ff ff ff fe ff fe ff ff ff ff ff fe ff fe ff > 00e0 fe ff ff ff fe ff fe ff ff ff ff ff ff ff ff ff > 00f0 ff ff ff ff fe ff ff ff ff ff ff ff ff ff ff ff > 0100 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > 0110 ff ff ff ff fe ff ff ff ff ff ff ff ff ff fe ff > 0120 ff ff ff ff fe ff ff ff ff ff fe ff fe ff ff ff > 0130 ff ff ff ff ff ff ff ff ff ff fe ff fe ff ff ff > 0140 fe ff ff ff ff ff fe ff ff ff ff ff fe ff fe ff > 0150 fe ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > 0160 ff ff ff ff ff ff fe ff fe ff fe ff ff ff ff ff > 0170 ff ff ff ff ff ff ff ff ff ff ff ff fe ff fe ff > 0180 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > 0190 ff ff ff ff ff ff ff ff ff ff fe ff fe ff ff ff > 01a0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > 01b0 ff ff ff ff ff ff ff ff fe ff fe ff ff ff ff ff > 01c0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff fe ff > 01d0 ff ff ff ff ff ff ff ff fe ff ff ff ff ff ff ff > 01e0 ff ff fe ff fe ff ff ff ff ff ff ff ff ff ff ff > 01f0 ff ff ff ff ff ff fe ff fe ff fe ff fe ff fe ff > 0200 fe ff fe ff fe ff ff ff fe ff ff ff ff ff fe ff > 0210 fe ff ff ff ff ff ff ff ff ff ff ff fe ff fe ff > 0220 ff ff ff ff ff ff ff ff ff ff fe ff ff ff ff ff > 0230 ff ff ff ff ff ff ff ff ff ff ff ff fe ff fe ff > 0240 fe ff ff ff ff ff ff ff ff ff ff ff ff ff fe ff > 0250 fe ff fe ff ff ff ff ff ff ff ff ff ff ff ff ff > 0260 fe ff ff ff ff ff ff ff fe ff ff ff ff ff ff ff > 0270 ff ff ff ff fe ff ff ff ff ff ff ff ff ff ff ff > > How about the qualtity of the playback ? did you speak to the mic and hear the result ? Refer to your pulseaudio log , PA use "front" device for playback/capture but your test use "hw" D: alsa-util.c: Trying front:0 with SND_PCM_NO_AUTO_FORMAT ... I: module-alsa-source.c: Successfully opened device front:0. I: module-alsa-source.c: Successfully enabled mmap() mode. I: (alsa-lib)control.c: Invalid CTL front:0 I: alsa-util.c: Unable to attach to mixer front:0: No such file or directory I: alsa-util.c: Successfully attached to mixer 'hw:0' I: alsa-util.c: Cannot find mixer control "Capture" or mixer control is no combination of switch/volume. I: alsa-util.c: Using mixer control "Mic" ... sink_name=alsa_output.pci_ 1102_4_sound_card_0_alsa_playback_0 tsched=0' D: alsa-util.c: Trying front:0 with SND_PCM_NO_AUTO_FORMAT ... I: (alsa-lib)setup.c: Cannot lock ctl elem D: alsa-util.c: Trying front:0 without SND_PCM_NO_AUTO_FORMAT ... I: (alsa-lib)setup.c: Cannot lock ctl elem D: alsa-util.c: Trying plug:front:0 with SND_PCM_NO_AUTO_FORMAT ... I: (alsa-lib)setup.c: Cannot lock ctl elem D: alsa-util.c: Trying plug:front:0 without SND_PCM_NO_AUTO_FORMAT ... I: (alsa-lib)setup.c: Cannot lock ctl elem I: alsa-util.c: PCM device plug:front:0 refused our hw parameters: Device or resource busy ... D: alsa-util.c: Trying hw:0 as last resort... D: alsa-util.c: Trying hw:0 with SND_PCM_NO_AUTO_FORMAT ... I: module-alsa-sink.c: Successfully opened device hw:0. I: module-alsa-sink.c: Successfully enabled mmap() mode. I: alsa-util.c: Successfully attached to mixer 'hw:0' I: alsa-util.c: Cannot find mixer control "Master" or mixer control is no combination of switch/volume. W: alsa-util.c: Cannot find fallback mixer control "PCM" or mixer control is no combination of switch/volume. I: alsa-util.c: Using mixer control "PCM". Do you mean that you suspect the problem is related to alsa-pulse plugin or PA server ? _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
