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phoenix: add property for number of capture buffers

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This commit is contained in:
Joshua M. Doe 2011-11-07 12:50:25 -05:00
parent c3f3f9897d
commit 9ebfbe4c7d
2 changed files with 27 additions and 20 deletions
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46
sys/phoenix/gstphoenixsrc.c
View File

@ -78,17 +78,12 @@ static GstFlowReturn gst_phoenixsrc_create (GstPushSrc * src, GstBuffer ** buf);
enum
{
PROP_0,
PROP_CAMERA_CONFIG_FILEPATH/*,
PROP_BOARD_INDEX,
PROP_CAMERA_TYPE,
PROP_CONNECTOR*/
/* FILL ME */
PROP_CAMERA_CONFIG_FILEPATH,
PROP_NUM_CAPTURE_BUFFERS
};
#define DEFAULT_PROP_CAMERA_CONFIG_FILEPATH NULL /* defaults to 640x480x8bpp */
/*#define DEFAULT_PROP_BOARD_INDEX 0
#define DEFAULT_PROP_CAMERA_TYPE MC_Camera_CAMERA_NTSC
#define DEFAULT_PROP_CONNECTOR MC_Connector_VID1*/
#define DEFAULT_PROP_NUM_CAPTURE_BUFFERS 2
/* pad templates */
@ -253,20 +248,16 @@ gst_phoenixsrc_class_init (GstPhoenixSrcClass * klass)
push_src_class->create = GST_DEBUG_FUNCPTR (gst_phoenixsrc_create);
/* Install GObject properties */
g_object_class_install_property (gobject_class, PROP_CAMERA_CONFIG_FILEPATH,
g_param_spec_string ("config-file", "Config file",
"Camera configuration filepath", DEFAULT_PROP_CAMERA_CONFIG_FILEPATH,
G_PARAM_READWRITE));
//g_object_class_install_property (gobject_class, PROP_CAMERA_TYPE,
// g_param_spec_enum ("camera", "Camera",
// "Camera type", GST_TYPE_PHOENIX_SRC_CAMERA,
// DEFAULT_PROP_CAMERA_TYPE, G_PARAM_READWRITE));
//g_object_class_install_property (gobject_class, PROP_CONNECTOR,
// g_param_spec_enum ("connector", "Connector",
// "Connector where camera is attached", GST_TYPE_PHOENIX_SRC_CONNECTOR,
// DEFAULT_PROP_CONNECTOR, G_PARAM_READWRITE));
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_NUM_CAPTURE_BUFFERS,
g_param_spec_uint ("num-capture-buffers", "Number of capture buffers",
"Number of capture buffers", 1, G_MAXUINT,
DEFAULT_PROP_NUM_CAPTURE_BUFFERS,
(GParamFlags) (G_PARAM_READWRITE |G_PARAM_STATIC_STRINGS)));
}
@ -284,6 +275,7 @@ gst_phoenixsrc_init (GstPhoenixSrc * phoenixsrc, GstPhoenixSrcClass * phoenixsrc
/* initialize member variables */
phoenixsrc->config_filepath = g_strdup (DEFAULT_PROP_CAMERA_CONFIG_FILEPATH);
phoenixsrc->num_capture_buffers = DEFAULT_PROP_NUM_CAPTURE_BUFFERS;
phoenixsrc->buffer_ready = FALSE;
phoenixsrc->timeout_occurred = FALSE;
@ -324,6 +316,17 @@ gst_phoenixsrc_set_property (GObject * object, guint property_id,
g_free (phoenixsrc->config_filepath);
phoenixsrc->config_filepath = g_strdup (g_value_get_string (value));
break;
case PROP_NUM_CAPTURE_BUFFERS:
if (phoenixsrc->acq_started) {
GST_ELEMENT_WARNING (phoenixsrc, RESOURCE, SETTINGS,
("Number of capture buffers cannot be changed after acquisition has started."),
(NULL));
}
else {
phoenixsrc->num_capture_buffers = g_value_get_uint (value);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
@ -343,6 +346,9 @@ gst_phoenixsrc_get_property (GObject * object, guint property_id,
case PROP_CAMERA_CONFIG_FILEPATH:
g_value_set_string (value, phoenixsrc->config_filepath);
break;
case PROP_NUM_CAPTURE_BUFFERS:
g_value_set_uint (value, phoenixsrc->num_capture_buffers);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
@ -561,8 +567,8 @@ gst_phoenixsrc_start (GstBaseSrc * src)
if (PHX_OK != eStat) goto ResourceSettingsError;
phoenixsrc->buffer_size = dwBufferHeight * dwBufferWidth;
/* Tell Phoenix to use N buffers. TODO: make this a property */
eParamValue = 2;
/* Tell Phoenix to use N buffers. */
eParamValue = phoenixsrc->num_capture_buffers;
PHX_ParameterSet (phoenixsrc->hCamera, PHX_ACQ_NUM_IMAGES, &eParamValue);
/* Setup a one second timeout value (milliseconds) */

1
sys/phoenix/gstphoenixsrc.h
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@ -65,6 +65,7 @@ struct _GstPhoenixSrc
/* properties */
gchar *config_filepath;
guint num_capture_buffers;
guint32 buffer_size;
gboolean buffer_ready;