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authorAlexey Fisher <bug-track@fisher-privat.net>2010-09-13 22:43:51 +0800
committerGuillaume Desmottes <guillaume.desmottes@collabora.co.uk>2010-09-13 22:56:44 +0800
commit4815a75a72a0ebacc7e2f29e7026b8493c6ea320 (patch)
tree6f31ccfe17a3dd30e378dac7b2ac34e85fd43266 /libempathy-gtk/empathy-video-src.c
parentd7e8bf5c3db088092e5458f13097a7b81b27c9e2 (diff)
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Add empathy_gst_make_to_bin
Diffstat (limited to 'libempathy-gtk/empathy-video-src.c')
-rw-r--r--libempathy-gtk/empathy-video-src.c80
1 files changed, 69 insertions, 11 deletions
diff --git a/libempathy-gtk/empathy-video-src.c b/libempathy-gtk/empathy-video-src.c
index aa4d35ac2..2beb469b2 100644
--- a/libempathy-gtk/empathy-video-src.c
+++ b/libempathy-gtk/empathy-video-src.c
@@ -56,6 +56,50 @@ struct _EmpathyGstVideoSrcPrivate
#define EMPATHY_GST_VIDEO_SRC_GET_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), EMPATHY_TYPE_GST_VIDEO_SRC, \
EmpathyGstVideoSrcPrivate))
+/**
+ * empathy_gst_make_to_bin - make gst faktory, add to bin and link it.
+ * @bin - bit to add to.
+ * @src - Element to link new crated element with. IF src == NULL,
+ * we will only create Factory and add it to the bin.
+ * @factoryname - factory name of factory to create.
+ * we will return pointer to new Element
+ */
+GstElement *
+empathy_gst_make_to_bin (GstBin *bin, GstElement *src,
+ const gchar *factoryname)
+{
+ GstElement *ret;
+
+ if (!(ret = gst_element_factory_make (factoryname, NULL)))
+ {
+ g_warning ("Factory \"%s\" not found.", factoryname);
+ goto error;
+ }
+
+ if (!gst_bin_add (bin, ret))
+ {
+ g_warning ("Can't add \"%s\" to bin.", factoryname);
+ goto error;
+ }
+
+ /* do not link if src == NULL, just exit here */
+ if (src == NULL)
+ return ret;
+
+ if (!gst_element_link (src, ret))
+ {
+ g_warning ("Can't link \"%s\".", factoryname);
+ gst_bin_remove (bin, ret);
+ goto error;
+ }
+
+ return ret;
+
+error:
+ gst_object_unref (ret);
+ return NULL;
+}
+
static void
empathy_video_src_init (EmpathyGstVideoSrc *obj)
@@ -66,10 +110,23 @@ empathy_video_src_init (EmpathyGstVideoSrc *obj)
GstCaps *caps;
/* allocate any data required by the object here */
- scale = gst_element_factory_make ("videoscale", NULL);
- colorspace = gst_element_factory_make ("ffmpegcolorspace", NULL);
+ priv->src = empathy_gst_make_to_bin (GST_BIN (obj), NULL, "gconfvideosrc");
+ if (!priv->src)
+ g_error ("gst-plugins-good is probably missing. exit");
+
+ scale = empathy_gst_make_to_bin (GST_BIN (obj), priv->src, "videoscale");
+ if (!scale)
+ g_error ("gst-plugins-base is probably missing. exit");
+
+ colorspace = empathy_gst_make_to_bin (GST_BIN (obj),
+ scale, "ffmpegcolorspace");
+ if (!colorspace)
+ g_error ("gst-plugins-base is probably missing. exit");
+
+ capsfilter = empathy_gst_make_to_bin (GST_BIN (obj), scale, "capsfilter");
+ if (!capsfilter)
+ g_error ("core libgstreamer is probably missing. exit");
- capsfilter = gst_element_factory_make ("capsfilter", NULL);
caps = gst_caps_new_simple ("video/x-raw-yuv",
"width", G_TYPE_INT, 320,
"height", G_TYPE_INT, 240,
@@ -77,16 +134,17 @@ empathy_video_src_init (EmpathyGstVideoSrc *obj)
g_object_set (G_OBJECT (capsfilter), "caps", caps, NULL);
- priv->src = gst_element_factory_make ("gconfvideosrc", NULL);
-
- gst_bin_add_many (GST_BIN (obj), priv->src, scale, colorspace, capsfilter,
- NULL);
- gst_element_link_many (priv->src, scale, colorspace, capsfilter, NULL);
-
- src = gst_element_get_static_pad (capsfilter, "src");
+ src = gst_element_get_static_pad (colorspace, "src");
+ if (!src)
+ g_error ("src pad not found. exit");
ghost = gst_ghost_pad_new ("src", src);
- gst_element_add_pad (GST_ELEMENT (obj), ghost);
+ if (!ghost)
+ g_error ("can't create ghost pad. exit");
+
+ if (!gst_element_add_pad (GST_ELEMENT (obj), ghost))
+ g_error ("pad with the same name already existed or "
+ "the pad already had another parent. exit");
gst_object_unref (G_OBJECT (src));
}