<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - pulseaudio core dumped when switch to profile output:iec958-ac3-surround-51 (alsa a52 plugin)" href="https://bugs.freedesktop.org/show_bug.cgi?id=93637#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - pulseaudio core dumped when switch to profile output:iec958-ac3-surround-51 (alsa a52 plugin)" href="https://bugs.freedesktop.org/show_bug.cgi?id=93637">bug 93637</a> from <a class="email" href="mailto:tom.ty89@gmail.com" title="Tom Yan <tom.ty89@gmail.com>"> Tom Yan</a> <pre>(In reply to Raymond from <a href="show_bug.cgi?id=93637#c11">comment #11</a>) > do a52 plugin support non interleaved access mode ? > > D: [pulseaudio] alsa-util.c: Slave: A52 Output Plugin > D: [pulseaudio] alsa-util.c: Its setup is: > D: [pulseaudio] alsa-util.c: stream : PLAYBACK > D: [pulseaudio] alsa-util.c: access : MMAP_NONINTERLEAVED > D: [pulseaudio] alsa-util.c: format : S16_LE > D: [pulseaudio] alsa-util.c: subformat : STD > D: [pulseaudio] alsa-util.c: channels : 6 > D: [pulseaudio] alsa-util.c: rate : 48000 > D: [pulseaudio] alsa-util.c: exact rate : 48000 (48000/1) [tom@localhost ~]$ aplay --dump-hw-param -M -D a52 st.wav Playing WAVE 'st.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Channels 6 HW Params of device "a52": -------------------- ACCESS: MMAP_NONINTERLEAVED RW_NONINTERLEAVED FORMAT: S16_LE SUBFORMAT: STD SAMPLE_BITS: 16 FRAME_BITS: 96 CHANNELS: 6 RATE: 48000 PERIOD_TIME: 32000 PERIOD_SIZE: 1536 PERIOD_BYTES: 18432 PERIODS: [2 21] BUFFER_TIME: [64000 672000] BUFFER_SIZE: [3072 32256] BUFFER_BYTES: [36864 387072] TICK_TIME: ALL -------------------- Here you go, this is what reported by the a52 plugin. Although it reports "RW_NONINTERLEAVED" as well, but I can't run aplay without -M: [tom@localhost ~]$ aplay --dump-hw-param -D a52 st.wav Playing WAVE 'st.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Channels 6 HW Params of device "a52": -------------------- ACCESS: MMAP_NONINTERLEAVED RW_NONINTERLEAVED FORMAT: S16_LE SUBFORMAT: STD SAMPLE_BITS: 16 FRAME_BITS: 96 CHANNELS: 6 RATE: 48000 PERIOD_TIME: 32000 PERIOD_SIZE: 1536 PERIOD_BYTES: 18432 PERIODS: [2 21] BUFFER_TIME: [64000 672000] BUFFER_SIZE: [3072 32256] BUFFER_BYTES: [36864 387072] TICK_TIME: ALL -------------------- aplay: set_params:1228: Access type not available These are captured with the original .asoundrc that does not use a "plug" wrapper btw. And here is how my sound card goes when it's playing: [tom@localhost ~]$ cat /proc/asound/card0/pcm1p/sub0/hw_params access: MMAP_INTERLEAVED format: S16_LE subformat: STD channels: 2 rate: 48000 (48000/1) period_size: 1536 buffer_size: 24576 FWIW, I see no significant delay in the opening and closing of device when I monitor this with `watch -n 0.1`.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>