Re: Problem writing to PCM plugin

["Arve Knudsen" <aknuds-1@broadpark.no>]

The plugin:
pcm.9636SPDIF {
     type plug
     slave.pcm "hw:1"
     ttable.0.16 1
     ttable.1.17 1
}

The dump:
Plug PCM: Linear Integer <-> Linear Float conversion PCM (S32_LE)
Its setup is:
stream       : PLAYBACK
access       : MMAP_INTERLEAVED
format       : FLOAT_LE
subformat    : STD
channels     : 2
rate         : 44100
exact rate   : 44100 (44100/1)
msbits       : 32
buffer_size  : 2048
period_size  : 1024
period_time  : 23219
tick_time    : 1000
tstamp_mode  : MMAP
period_step  : 1
sleep_min    : 0
avail_min    : 1024
xfer_align   : 1
start_threshold  : 1024
stop_threshold   : 2048
silence_threshold: 0
silence_size : 2147483647
boundary     : 1073741824
Slave: Route conversion PCM (sformat=S32_LE)
Transformation table:
0 <- none
1 <- none
Its setup is:
stream       : PLAYBACK
access       : MMAP_INTERLEAVED
format       : S32_LE
subformat    : STD
channels     : 2
rate         : 44100
exact rate   : 44100 (44100/1)
msbits       : 32
buffer_size  : 2048
period_size  : 1024
period_time  : 23219
tick_time    : 1000
tstamp_mode  : MMAP
period_step  : 1
sleep_min    : 0
avail_min    : 1024
xfer_align   : 1
start_threshold  : 1024
stop_threshold   : 2048
silence_threshold: 0
silence_size : 2147483647
boundary     : 1073741824
Slave: Route conversion PCM (sformat=S32_LE)
Transformation table:
0 <- none
1 <- none
2 <- none
3 <- none
4 <- none
5 <- none
6 <- none
7 <- none
8 <- none
9 <- none
10 <- none
11 <- none
12 <- none
13 <- none
14 <- none
15 <- none
16 <- 0
17 <- 1
Its setup is:
stream       : PLAYBACK
access       : MMAP_INTERLEAVED
format       : S32_LE
subformat    : STD
channels     : 2
rate         : 44100
exact rate   : 44100 (44100/1)
msbits       : 32
buffer_size  : 2048
period_size  : 1024
period_time  : 23219
tick_time    : 1000
tstamp_mode  : MMAP
period_step  : 1
sleep_min    : 0
avail_min    : 1024
xfer_align   : 1
start_threshold  : 1024
stop_threshold   : 2048
silence_threshold: 0
silence_size : 2147483647
boundary     : 1073741824
Slave: Hardware PCM card 1 'RME Digi9636 (Rev 1.5)' device 0 subdevice 0

Its setup is:
stream       : PLAYBACK
access       : MMAP_NONINTERLEAVED
format       : S32_LE
subformat    : STD
channels     : 18
rate         : 44100
exact rate   : 44100 (44100/1)
msbits       : 24
buffer_size  : 2048
period_size  : 1024
period_time  : 23219
tick_time    : 1000
tstamp_mode  : MMAP
period_step  : 1
sleep_min    : 0
avail_min    : 1024
xfer_align   : 1
start_threshold  : 1024
stop_threshold   : 2048
silence_threshold: 0
silence_size : 2147483647
boundary     : 1073741824

On Wed, 11 Aug 2004 15:36:24 +0200 (CEST), Jaroslav Kysela <perex@suse.cz>  
wrote:

> On Wed, 11 Aug 2004, Arve Knudsen wrote:
>
>> point format in the PortAudio tests, so there is an intermediate
>> conversion before the audio gets to the routing plugin. Could this be  
>> the
>> cause of the problem? If you wish I can provide output from  
>> snd_pcm_dump.
>
> Yes, send the dump, please.
>
> 						Jaroslav
>
> -----
> Jaroslav Kysela <perex@suse.cz>
> Linux Kernel Sound Maintainer
> ALSA Project, SUSE Labs




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