diff options
Diffstat (limited to 'ext/libpng/gstpng.c')
-rw-r--r-- | ext/libpng/gstpng.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/ext/libpng/gstpng.c b/ext/libpng/gstpng.c new file mode 100644 index 00000000..61dfe0b2 --- /dev/null +++ b/ext/libpng/gstpng.c @@ -0,0 +1,117 @@ +/* GStreamer + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * + * Filter: + * Copyright (C) 2000 Donald A. Graft + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + * + */ + +#include <string.h> +#include <gst/gst.h> +#include "gstpng.h" + + +struct _elements_entry { + gchar *name; + GType (*type) (void); + GstElementDetails *details; + gboolean (*factoryinit) (GstElementFactory *factory); +}; + +static struct _elements_entry _elements[] = { + { "pngenc", gst_pngenc_get_type, &gst_pngenc_details, NULL }, + { NULL, 0 }, +}; + + +GstPadTemplate* +gst_png_src_factory (void) +{ + static GstPadTemplate *templ = NULL; + if (!templ) { + templ = GST_PAD_TEMPLATE_NEW ( + "src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_CAPS_NEW ( + "png_src", + "video/raw", + NULL + ) + ); + } + return templ; +} + +GstPadTemplate* +gst_png_sink_factory (void) +{ + static GstPadTemplate *templ = NULL; + if (!templ) { + templ = GST_PAD_TEMPLATE_NEW ( + "sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_CAPS_NEW ( + "png_sink", + "video/raw", + "format", GST_PROPS_FOURCC (GST_STR_FOURCC ("RGB ")), + "bpp", GST_PROPS_INT (24), + "red_mask", GST_PROPS_INT (0xff0000), + "green_mask", GST_PROPS_INT (0xff00), + "blue_mask", GST_PROPS_INT (0xff), + "width", GST_PROPS_INT_RANGE (16, 4096), + "height", GST_PROPS_INT_RANGE (16, 4096) + ) + ); + } + return templ; +} + + +static gboolean +plugin_init (GModule * module, GstPlugin * plugin) +{ + GstElementFactory *factory; + gint i = 0; + + while (_elements[i].name) { + factory = gst_element_factory_new (_elements[i].name, + (_elements[i].type) (), + _elements[i].details); + + if (!factory) { + g_warning ("gst_png_new failed for `%s'", + _elements[i].name); + continue; + } + + gst_element_factory_add_pad_template (factory, gst_png_src_factory ()); + gst_element_factory_add_pad_template (factory, gst_png_sink_factory ()); + + gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory)); + if (_elements[i].factoryinit) { + _elements[i].factoryinit (factory); + } + i++; + } + + return TRUE; +} + +GstPluginDesc plugin_desc = { + GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "png", + plugin_init +}; |