On Tue, Nov 17, 2020 at 05:09:28PM +0000, Stuart Henderson wrote:
> On 2020/11/17 17:13, Peter J. Philipp wrote:
> > Hi,
> > 
> > I have a mic on snd/1 and speakers on snd/0.  I had tried a lot of different
> > settings with audacity port but couldn't get this to work, so I chose the
> > method of last resort.  Below is a patch to allow an AUDIORECDEVICE 
> > environment
> > variable specifying the wanted microphone.
> 
> This seems a worthwhile addition.
> 
> > Index: sio.c
> > ===================================================================
> > RCS file: /cvs/src/lib/libsndio/sio.c,v
> > retrieving revision 1.24
> > diff -u -p -u -r1.24 sio.c
> > --- sio.c   29 Jun 2019 06:05:26 -0000      1.24
> > +++ sio.c   17 Nov 2020 16:13:04 -0000
> > @@ -43,6 +43,7 @@ sio_open(const char *str, unsigned int m
> >  {
> >     static char devany[] = SIO_DEVANY;
> >     struct sio_hdl *hdl;
> > +   char *rec = NULL;
> >  
> >  #ifdef DEBUG
> >     _sndio_debug_init();
> > @@ -55,6 +56,12 @@ sio_open(const char *str, unsigned int m
> >             str = getenv("AUDIODEVICE");
> >             if (str == NULL)
> >                     str = devany;
> > +           rec = getenv("AUDIORECDEVICE");
> > +           if (rec == NULL)
> > +                   rec = devany;
> > +
> > +           if (rec && mode == SIO_REC)
> > +                   str = rec;
> 
> If AUDIORECDEVICE is unset, it would be better to fallback to
> AUDIODEVICE rather than directly to devany.

This is a good suggestion!  Thanks!  I have updated the patch.  I also
appreciate Solene's offer for manpage addition, thanks!

New diff follows... let me know if it can be done better, I won't be able
to update it until tomorrow.

-peter

Index: sio.c
===================================================================
RCS file: /cvs/src/lib/libsndio/sio.c,v
retrieving revision 1.24
diff -u -p -u -r1.24 sio.c
--- sio.c       29 Jun 2019 06:05:26 -0000      1.24
+++ sio.c       17 Nov 2020 17:18:57 -0000
@@ -43,6 +43,7 @@ sio_open(const char *str, unsigned int m
 {
        static char devany[] = SIO_DEVANY;
        struct sio_hdl *hdl;
+       char *rec = NULL;
 
 #ifdef DEBUG
        _sndio_debug_init();
@@ -55,6 +56,12 @@ sio_open(const char *str, unsigned int m
                str = getenv("AUDIODEVICE");
                if (str == NULL)
                        str = devany;
+               rec = getenv("AUDIORECDEVICE");
+               if (rec == NULL)
+                       rec = str;
+
+               if (rec && mode == SIO_REC)
+                       str = rec;
        }
        if (strcmp(str, devany) == 0) {
                hdl = _sio_aucat_open("snd/0", mode, nbio);
Index: sioctl.c
===================================================================
RCS file: /cvs/src/lib/libsndio/sioctl.c,v
retrieving revision 1.1
diff -u -p -u -r1.1 sioctl.c
--- sioctl.c    26 Feb 2020 13:53:58 -0000      1.1
+++ sioctl.c    17 Nov 2020 17:18:57 -0000
@@ -28,6 +28,7 @@ sioctl_open(const char *str, unsigned in
 {
        static char devany[] = SIO_DEVANY;
        struct sioctl_hdl *hdl;
+       char *rec = NULL;
 
 #ifdef DEBUG
        _sndio_debug_init();
@@ -38,6 +39,14 @@ sioctl_open(const char *str, unsigned in
                str = getenv("AUDIODEVICE");
                if (str == NULL)
                        str = devany;
+               
+               rec = getenv("AUDIORECDEVICE");
+               if (rec == NULL)
+                       rec = str;
+               
+               if (rec && mode == SIO_REC)
+                       str = rec;
+       
        }
        if (strcmp(str, devany) == 0) {
                hdl = _sioctl_aucat_open("snd/0", mode, nbio);

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