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sys/oss4/: Make device-name probing in NULL state work better (e.g. for the gnome-control-center sound capplet).

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Original commit message from CVS:
* sys/oss4/oss4-mixer.c: (gst_oss4_mixer_open):
* sys/oss4/oss4-property-probe.c:
(gst_oss4_property_probe_find_device_name),
(gst_oss4_property_probe_find_device_name_nofd):
* sys/oss4/oss4-property-probe.h:
* sys/oss4/oss4-sink.c: (gst_oss4_sink_get_property):
* sys/oss4/oss4-source.c: (gst_oss4_source_get_property):
Make device-name probing in NULL state work better (e.g. for the
gnome-control-center sound capplet).
This commit is contained in:
Tim-Philipp Müller 2008-05-22 15:14:26 +00:00 committed by Tim-Philipp Müller
parent 0e4d8ef5fe
commit 385cd9a804
5 changed files with 40 additions and 2 deletions
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5
sys/oss4/oss4-mixer.c
View file

@ -303,6 +303,9 @@ open_failed:
GST_ELEMENT_ERROR (mixer, RESOURCE, OPEN_READ_WRITE,
(_("Could not open audio device for mixer control handling.")),
GST_ERROR_SYSTEM);
} else {
GST_DEBUG_OBJECT (mixer, "open failed: %s (ignoring errors)",
g_strerror (errno));
}
g_free (device);
return FALSE;
@ -315,6 +318,8 @@ legacy_oss:
(_("Could not open audio device for mixer control handling."
"This version of the Open Sound System is not supported by this "
"element.")), ("Try the 'ossmixer' element instead"));
} else {
GST_DEBUG_OBJECT (mixer, "open failed: legacy oss (ignoring errors)");
}
g_free (device);
return FALSE;

18
sys/oss4/oss4-property-probe.c
View file

@ -163,6 +163,24 @@ gst_oss4_property_probe_find_device_name (GstObject * obj, int fd,
return (name != NULL);
}
gboolean
gst_oss4_property_probe_find_device_name_nofd (GstObject * obj,
const gchar * device_handle, gchar ** device_name)
{
gboolean res;
int fd;
fd = open ("/dev/mixer", O_RDONLY);
if (fd < 0)
return FALSE;
res = gst_oss4_property_probe_find_device_name (obj, fd, device_handle,
device_name);
close (fd);
return res;
}
static GList *
gst_oss4_property_probe_get_mixer_devices (GstObject * obj, int fd,
struct oss_sysinfo *si)

4
sys/oss4/oss4-property-probe.h
View file

@ -29,6 +29,10 @@ gboolean gst_oss4_property_probe_find_device_name (GstObject * obj,
const gchar * device_handle,
gchar ** device_name);
gboolean gst_oss4_property_probe_find_device_name_nofd (GstObject * obj,
const gchar * device_handle,
gchar ** device_name);
#endif /* GST_OSS4_PROPERTY_PROBE_H */

7
sys/oss4/oss4-sink.c
View file

@ -255,7 +255,12 @@ gst_oss4_sink_get_property (GObject * object, guint prop_id,
g_value_set_string (value, oss->device_name);
gst_oss4_sink_close (GST_AUDIO_SINK (oss));
} else {
g_value_set_string (value, oss->device_name);
gchar *name = NULL;
gst_oss4_property_probe_find_device_name_nofd (GST_OBJECT (oss),
oss->device, &name);
g_value_set_string (value, name);
g_free (name);
}
} else {
g_value_set_string (value, oss->device_name);

8
sys/oss4/oss4-source.c
View file

@ -256,11 +256,17 @@ gst_oss4_source_get_property (GObject * object, guint prop_id,
g_value_set_string (value, oss->device_name);
gst_oss4_source_close (GST_AUDIO_SRC (oss));
} else {
g_value_set_string (value, NULL);
gchar *name = NULL;
gst_oss4_property_probe_find_device_name_nofd (GST_OBJECT (oss),
oss->device, &name);
g_value_set_string (value, name);
g_free (name);
}
} else {
g_value_set_string (value, oss->device_name);
}
GST_OBJECT_UNLOCK (oss);
break;
default: