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sys/oss/: Small cleanups. Better error reporting.

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Original commit message from CVS:
* sys/oss/gstossmixer.c: (gst_ossmixer_open), (gst_ossmixer_new):
* sys/oss/gstossmixerelement.c: (gst_oss_mixer_element_class_init),
(gst_oss_mixer_element_init), (gst_oss_mixer_element_set_property),
(gst_oss_mixer_element_get_property),
(gst_oss_mixer_element_change_state):
* sys/oss/gstossmixerelement.h:
Small cleanups. Better error reporting.
Add device property for the mixer instead of the hardcoded
/dev/mixer. Fixes #350785.
API: GstOssMixerElement::device property
This commit is contained in:
Wim Taymans 2006-08-16 09:25:17 +00:00
parent 38bb20d0ff
commit d5e01fa63f
4 changed files with 101 additions and 25 deletions
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13
ChangeLog
View file

@ -1,3 +1,16 @@
2006-08-13 Wim Taymans <wim@fluendo.com>
* sys/oss/gstossmixer.c: (gst_ossmixer_open), (gst_ossmixer_new):
* sys/oss/gstossmixerelement.c: (gst_oss_mixer_element_class_init),
(gst_oss_mixer_element_init), (gst_oss_mixer_element_set_property),
(gst_oss_mixer_element_get_property),
(gst_oss_mixer_element_change_state):
* sys/oss/gstossmixerelement.h:
Small cleanups. Better error reporting.
Add device property for the mixer instead of the hardcoded
/dev/mixer. Fixes #350785.
API: GstOssMixerElement::device property
2006-08-15 Tim-Philipp Müller <tim at centricular dot net>
Patch by: Jens Granseuer <jensgr at gmx net>

54
sys/oss/gstossmixer.c
View file

@ -66,12 +66,8 @@ gst_ossmixer_open (GstOssMixer * mixer)
g_return_val_if_fail (mixer->mixer_fd == -1, FALSE);
mixer->mixer_fd = open (mixer->device, O_RDWR);
if (mixer->mixer_fd == -1) {
/* this is valid. OSS devices don't need to expose a mixer */
GST_DEBUG ("Failed to open mixer device %s, mixing disabled: %s",
mixer->device, strerror (errno));
return FALSE;
}
if (mixer->mixer_fd == -1)
goto open_failed;
/* get masks */
if (ioctl (mixer->mixer_fd, SOUND_MIXER_READ_RECMASK, &mixer->recmask) < 0
@ -79,23 +75,40 @@ gst_ossmixer_open (GstOssMixer * mixer)
|| ioctl (mixer->mixer_fd, SOUND_MIXER_READ_STEREODEVS,
&mixer->stereomask) < 0
|| ioctl (mixer->mixer_fd, SOUND_MIXER_READ_DEVMASK, &mixer->devmask) < 0
|| ioctl (mixer->mixer_fd, SOUND_MIXER_READ_CAPS, &mixer->mixcaps) < 0) {
|| ioctl (mixer->mixer_fd, SOUND_MIXER_READ_CAPS, &mixer->mixcaps) < 0)
goto masks_failed;
/* get name, not fatal */
g_free (mixer->cardname);
#ifdef SOUND_MIXER_INFO
if (ioctl (mixer->mixer_fd, SOUND_MIXER_INFO, &minfo) == 0) {
mixer->cardname = g_strdup (minfo.name);
GST_INFO ("Card name = %s", GST_STR_NULL (mixer->cardname));
} else
#endif
{
mixer->cardname = g_strdup ("Unknown");
GST_INFO ("Unknown card name");
}
GST_INFO ("Opened mixer for device %s", mixer->device);
return TRUE;
/* ERRORS */
open_failed:
{
/* this is valid. OSS devices don't need to expose a mixer */
GST_DEBUG ("Failed to open mixer device %s, mixing disabled: %s",
mixer->device, strerror (errno));
return FALSE;
}
masks_failed:
{
GST_DEBUG ("Failed to get device masks");
close (mixer->mixer_fd);
mixer->mixer_fd = -1;
return FALSE;
}
/* get name */
#ifdef SOUND_MIXER_INFO
if (ioctl (mixer->mixer_fd, SOUND_MIXER_INFO, &minfo) == 0) {
mixer->cardname = g_strdup (minfo.name);
}
#else
oss->cardname = g_strdup ("Unknown");
#endif
return TRUE;
}
static void
@ -166,12 +179,13 @@ gst_ossmixer_new (const char *device, GstOssMixerDirection dir)
return ret;
/* ERRORS */
error:
if (ret)
{
gst_ossmixer_free (ret);
return NULL;
}
}
void
gst_ossmixer_free (GstOssMixer * mixer)

56
sys/oss/gstossmixerelement.c
View file

@ -27,9 +27,14 @@
GST_DEBUG_CATEGORY_EXTERN (oss_debug);
#define GST_CAT_DEFAULT oss_debug
#define DEFAULT_DEVICE "/dev/mixer"
#define DEFAULT_DEVICE_NAME NULL
enum
{
PROP_DEVICE_NAME = 1
PROP_0,
PROP_DEVICE,
PROP_DEVICE_NAME
};
@ -49,6 +54,8 @@ GST_IMPLEMENT_OSS_MIXER_METHODS (GstOssMixerElement, gst_oss_mixer_element);
static GstStateChangeReturn gst_oss_mixer_element_change_state (GstElement *
element, GstStateChange transition);
static void gst_oss_mixer_element_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_oss_mixer_element_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
@ -68,11 +75,18 @@ gst_oss_mixer_element_class_init (GstOssMixerElementClass * klass)
element_class = (GstElementClass *) klass;
gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_oss_mixer_element_set_property;
gobject_class->get_property = gst_oss_mixer_element_get_property;
g_object_class_install_property (gobject_class, PROP_DEVICE,
g_param_spec_string ("device", "Device",
"OSS mixer device (usually /dev/mixer)", DEFAULT_DEVICE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_DEVICE_NAME,
g_param_spec_string ("device-name", "Device name",
"Human-readable name of the sound device", "", G_PARAM_READABLE));
"Human-readable name of the sound device", DEFAULT_DEVICE_NAME,
G_PARAM_READABLE));
element_class->change_state =
GST_DEBUG_FUNCPTR (gst_oss_mixer_element_change_state);
@ -83,6 +97,28 @@ gst_oss_mixer_element_init (GstOssMixerElement * this,
GstOssMixerElementClass * g_class)
{
this->mixer = NULL;
this->device = g_strdup (DEFAULT_DEVICE);
}
static void
gst_oss_mixer_element_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstOssMixerElement *this = GST_OSS_MIXER_ELEMENT (object);
switch (prop_id) {
case PROP_DEVICE:
g_free (this->device);
this->device = g_value_dup_string (value);
/* make sure we never set NULL */
if (this->device == NULL) {
this->device = g_strdup (DEFAULT_DEVICE);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
@ -92,6 +128,9 @@ gst_oss_mixer_element_get_property (GObject * object, guint prop_id,
GstOssMixerElement *this = GST_OSS_MIXER_ELEMENT (object);
switch (prop_id) {
case PROP_DEVICE:
g_value_set_string (value, this->device);
break;
case PROP_DEVICE_NAME:
if (this->mixer) {
g_value_set_string (value, this->mixer->cardname);
@ -115,7 +154,9 @@ gst_oss_mixer_element_change_state (GstElement * element,
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!this->mixer) {
this->mixer = gst_ossmixer_new ("/dev/mixer", GST_OSS_MIXER_ALL);
this->mixer = gst_ossmixer_new (this->device, GST_OSS_MIXER_ALL);
if (!this->mixer)
goto open_failed;
}
break;
break;
@ -137,6 +178,13 @@ gst_oss_mixer_element_change_state (GstElement * element,
default:
break;
}
return ret;
/* ERRORS */
open_failed:
{
GST_ELEMENT_ERROR (element, RESOURCE, OPEN_READ_WRITE, (NULL),
("Failed to open oss mixer device '%s'", this->device));
return GST_STATE_CHANGE_FAILURE;
}
}

1
sys/oss/gstossmixerelement.h
View file

@ -41,6 +41,7 @@ typedef struct _GstOssMixerElementClass GstOssMixerElementClass;
struct _GstOssMixerElement {
GstElement parent;
gchar *device;
GstOssMixer *mixer;
};