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androidcamera: Add device property and property probe it

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This commit is contained in:
Youness Alaoui 2012-10-30 11:35:36 -04:00 committed by Nicolas Dufresne
parent 0552bb1b2a
commit a08c895303
2 changed files with 131 additions and 31 deletions
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158
sys/androidcamera/gstahcsrc.c
View file

@ -24,10 +24,15 @@
#endif
#include <gst/video/video.h>
#include <gst/interfaces/propertyprobe.h>
#include "gstahcsrc.h"
#include "gst-dvm.h"
static void gst_ahc_src_property_probe_interface_init (GstPropertyProbeInterface
* iface);
static void gst_ahc_src_init_interfaces (GType type);
static void gst_ahc_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_ahc_src_get_property (GObject * object, guint prop_id,
@ -67,9 +72,27 @@ GST_DEBUG_CATEGORY_STATIC (gst_ahc_src_debug);
enum
{
ARG_0,
PROP_0,
PROP_DEVICE,
};
GST_BOILERPLATE (GstAHCSrc, gst_ahc_src, GstPushSrc, GST_TYPE_PUSH_SRC);
#define DEFAULT_DEVICE "0"
GST_BOILERPLATE_FULL (GstAHCSrc, gst_ahc_src, GstPushSrc, GST_TYPE_PUSH_SRC,
gst_ahc_src_init_interfaces);
static void
gst_ahc_src_init_interfaces (GType type)
{
static const GInterfaceInfo ahcsrc_propertyprobe_info = {
(GInterfaceInitFunc) gst_ahc_src_property_probe_interface_init,
NULL,
NULL,
};
g_type_add_interface_static (type, GST_TYPE_PROPERTY_PROBE,
&ahcsrc_propertyprobe_info);
}
static void
gst_ahc_src_base_init (gpointer g_class)
@ -112,6 +135,13 @@ gst_ahc_src_class_init (GstAHCSrcClass * klass)
gstbasesrc_class->query = gst_ahc_src_query;
gstpushsrc_class->create = gst_ahc_src_create;
g_object_class_install_property (gobject_class, PROP_DEVICE,
g_param_spec_string ("device", "device",
"Device ID", DEFAULT_DEVICE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
klass->probe_properties = NULL;
}
static gboolean
@ -148,6 +178,100 @@ gst_ahc_src_dispose (GObject * object)
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_ahc_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAHCSrc *self = GST_AHC_SRC (object);
(void) self;
switch (prop_id) {
case PROP_DEVICE:{
const gchar *dev = g_value_get_string (value);
gchar *endptr = NULL;
guint64 device;
device = g_ascii_strtoll (dev, &endptr, 10);
if (endptr != dev && endptr[0] == 0 && device < G_MAXINT)
self->device = (gint) device;
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_ahc_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstAHCSrc *self = GST_AHC_SRC (object);
(void) self;
switch (prop_id) {
case PROP_DEVICE:{
gchar *dev = g_strdup_printf ("%d", self->device);
g_value_take_string (value, dev);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static const GList *
gst_ahc_src_probe_get_properties (GstPropertyProbe * probe)
{
GObjectClass *klass = G_OBJECT_GET_CLASS (probe);
GstAHCSrcClass *ahc_class = GST_AHC_SRC_CLASS (probe);
if (!ahc_class->probe_properties)
ahc_class->probe_properties = g_list_append (NULL,
g_object_class_find_property (klass, "device"));
return ahc_class->probe_properties;
}
static GValueArray *
gst_ahc_src_probe_get_values (GstPropertyProbe * probe,
guint prop_id, const GParamSpec * pspec)
{
GValueArray *array = NULL;
switch (prop_id) {
case PROP_DEVICE:{
GValue value = { 0 };
gint num_cams = gst_ah_camera_get_number_of_cameras ();
gint i;
array = g_value_array_new (num_cams);
g_value_init (&value, G_TYPE_STRING);
for (i = 0; i < num_cams; i++) {
g_value_take_string (&value, g_strdup_printf ("%d", i));
g_value_array_append (array, &value);
}
g_value_unset (&value);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
break;
}
return array;
}
static void
gst_ahc_src_property_probe_interface_init (GstPropertyProbeInterface * iface)
{
iface->get_properties = gst_ahc_src_probe_get_properties;
iface->get_values = gst_ahc_src_probe_get_values;
}
static gint
_compare_formats (int f1, int f2)
{
@ -454,34 +578,6 @@ end:
return ret;
}
static void
gst_ahc_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAHCSrc *self = GST_AHC_SRC (object);
(void) self;
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_ahc_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstAHCSrc *self = GST_AHC_SRC (object);
(void) self;
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
typedef struct
{
GstAHCSrc *self;
@ -590,7 +686,7 @@ gst_ahc_src_open (GstAHCSrc * self)
{
GST_DEBUG_OBJECT (self, "Openning camera");
self->camera = gst_ah_camera_open (0);
self->camera = gst_ah_camera_open (self->device);
if (self->camera) {
GST_DEBUG_OBJECT (self, "Opened camera");

4
sys/androidcamera/gstahcsrc.h
View file

@ -61,11 +61,15 @@ struct _GstAHCSrc
gint fps_min;
gint fps_max;
gboolean start;
/* Properties */
gint device;
};
struct _GstAHCSrcClass
{
GstPushSrcClass parent_class;
GList *probe_properties;
};
GType gst_ahc_src_get_type (void);