monotonic raw setup seems buggy
sylvain.bertrand at gmail.com
sylvain.bertrand at gmail.com
Sat Mar 21 16:53:03 CET 2020
Hi,
I am writting an alsa application and while working on pcm status timings, I
noticed that setting monotonic_raw timings in sw_params while the hardware
device plugin is already running with monotonic timings did not produce an error.
Follow the pcm dump which shows monotonic_raw being set on all plugin instances
but the already running hw plugin instance.
Is this a bug, or am I doing something the wrong way?
Plug PCM: Linear Integer <-> Linear Float conversion PCM (S32_LE)
Its setup is:
stream : PLAYBACK
access : RW_NONINTERLEAVED
format : FLOAT_LE
subformat : STD
channels : 2
rate : 48000
exact rate : 48000 (48000/1)
msbits : 32
buffer_size : 8192
period_size : 1024
period_time : 21333
tstamp_mode : ENABLE
tstamp_type : MONOTONIC_RAW
period_step : 1
avail_min : 1024
period_event : 1
start_threshold : 1
stop_threshold : 8192
silence_threshold: 0
silence_size : 0
boundary : 4611686018427387904
Slave: Direct Stream Mixing PCM
Its setup is:
stream : PLAYBACK
access : MMAP_INTERLEAVED
format : S32_LE
subformat : STD
channels : 2
rate : 48000
exact rate : 48000 (48000/1)
msbits : 32
buffer_size : 8192
period_size : 1024
period_time : 21333
tstamp_mode : ENABLE
tstamp_type : MONOTONIC_RAW
period_step : 1
avail_min : 1024
period_event : 1
start_threshold : 1
stop_threshold : 8192
silence_threshold: 0
silence_size : 0
boundary : 4611686018427387904
Hardware PCM card 0 'HDA ATI SB' device 0 subdevice 0
Its setup is:
stream : PLAYBACK
access : MMAP_INTERLEAVED
format : S32_LE
subformat : STD
channels : 2
rate : 48000
exact rate : 48000 (48000/1)
msbits : 32
buffer_size : 8192
period_size : 1024
period_time : 21333
tstamp_mode : ENABLE
tstamp_type : MONOTONIC
period_step : 1
avail_min : 1024
period_event : 0
start_threshold : 1
stop_threshold : 0
silence_threshold: 0
silence_size : 0
boundary : 4611686018427387904
appl_ptr : 0
hw_ptr : 1484839806
cheers,
--
Sylvain
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