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media-factory: add a "media-constructed" signal to GstRTSPMediaFactory

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For example, it can be used to retrieve source elements like appsrc, in a more
convenient way than subclassing get_element.
This commit is contained in:
Emmanuel Pacaud 2011-06-30 10:13:59 +02:00 committed by Wim Taymans
parent 041b62db8b
commit 5dc9e76125
2 changed files with 28 additions and 7 deletions
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22
gst/rtsp-server/rtsp-media-factory.c
View file

@ -34,9 +34,17 @@ enum
PROP_LAST
};
enum
{
SIGNAL_MEDIA_CONSTRUCTED,
SIGNAL_LAST
};
GST_DEBUG_CATEGORY_STATIC (rtsp_media_debug);
#define GST_CAT_DEFAULT rtsp_media_debug
static guint gst_rtsp_media_factory_signals[SIGNAL_LAST] = { 0 };
static void gst_rtsp_media_factory_get_property (GObject * object, guint propid,
GValue * value, GParamSpec * pspec);
static void gst_rtsp_media_factory_set_property (GObject * object, guint propid,
@ -103,6 +111,12 @@ gst_rtsp_media_factory_class_init (GstRTSPMediaFactoryClass * klass)
"The kernel UDP buffer size to use", 0, G_MAXUINT,
DEFAULT_BUFFER_SIZE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_rtsp_media_factory_signals[SIGNAL_MEDIA_CONSTRUCTED] =
g_signal_new ("media-constructed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPMediaFactoryClass,
media_constructed), NULL, NULL, g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1, GST_TYPE_RTSP_MEDIA);
klass->gen_key = default_gen_key;
klass->get_element = default_get_element;
klass->construct = default_construct;
@ -490,9 +504,13 @@ gst_rtsp_media_factory_construct (GstRTSPMediaFactory * factory,
if (media == NULL) {
/* nothing cached found, try to create one */
if (klass->construct)
if (klass->construct) {
media = klass->construct (factory, url);
else
if (media)
g_signal_emit (factory,
gst_rtsp_media_factory_signals[SIGNAL_MEDIA_CONSTRUCTED], 0, media,
NULL);
} else
media = NULL;
if (media) {

13
gst/rtsp-server/rtsp-media-factory.h
View file

@ -93,12 +93,15 @@ struct _GstRTSPMediaFactory {
struct _GstRTSPMediaFactoryClass {
GObjectClass parent_class;
gchar * (*gen_key) (GstRTSPMediaFactory *factory, const GstRTSPUrl *url);
gchar * (*gen_key) (GstRTSPMediaFactory *factory, const GstRTSPUrl *url);
GstElement * (*get_element) (GstRTSPMediaFactory *factory, const GstRTSPUrl *url);
GstRTSPMedia * (*construct) (GstRTSPMediaFactory *factory, const GstRTSPUrl *url);
void (*configure) (GstRTSPMediaFactory *factory, GstRTSPMedia *media);
GstElement * (*create_pipeline)(GstRTSPMediaFactory *factory, GstRTSPMedia *media);
GstElement * (*get_element) (GstRTSPMediaFactory *factory, const GstRTSPUrl *url);
GstRTSPMedia * (*construct) (GstRTSPMediaFactory *factory, const GstRTSPUrl *url);
void (*configure) (GstRTSPMediaFactory *factory, GstRTSPMedia *media);
GstElement * (*create_pipeline) (GstRTSPMediaFactory *factory, GstRTSPMedia *media);
/* signals */
void (*media_constructed)(GstRTSPMediaFactory *factory, GstRTSPMedia *media);
};
GType gst_rtsp_media_factory_get_type (void);