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Add videoflip, created from template.
Original commit message from CVS: Add videoflip, created from template.
This commit is contained in:
David Schleef
parent
23e47de332
commit
1bdd2c9cc3
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@ -1,11 +1,12 @@
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plugindir = $(libdir)/gstreamer-@GST_MAJORMINOR@
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plugin_LTLIBRARIES = libgstvideofilter.la
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plugin_LTLIBRARIES = libgstvideofilter.la libgstvideoflip.la
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noinst_LTLIBRARIES = libgstvideoexample.la
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noinst_HEADERS = gstvideofilter.h gstvideoexample.h
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noinst_HEADERS = gstvideofilter.h gstvideoexample.h gstvideoflip.h
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EXTRA_DIST = gstvideotemplate.c gstvideotemplate.h make_filter
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EXTRA_CLEAN = gstvideoexample.c gstvideoexample.h
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libgstvideofilter_la_SOURCES = gstvideofilter.c
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libgstvideofilter_la_CFLAGS = $(GST_CFLAGS)
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@ -17,6 +18,11 @@ libgstvideoexample_la_CFLAGS = $(GST_CFLAGS)
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libgstvideoexample_la_LIBADD =
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libgstvideoexample_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstvideoflip_la_SOURCES = gstvideoflip.c
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libgstvideoflip_la_CFLAGS = $(GST_CFLAGS)
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libgstvideoflip_la_LIBADD =
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libgstvideoflip_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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# no, this doesn't work if $(srcdir) != (builddir)
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gstvideoexample.c gstvideoexample.h: $(srcdir)/make_filter \
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272
gst/videofilter/gstvideoflip.c
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272
gst/videofilter/gstvideoflip.c
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@ -0,0 +1,272 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*#define DEBUG_ENABLED */
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#include <gstvideoflip.h>
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/* elementfactory information */
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static GstElementDetails videoflip_details = {
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"Video Filter Template",
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"Filter/Video",
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"LGPL",
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"Template for a video filter",
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VERSION,
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"David Schleef <ds@schleef.org>",
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"(C) 2003",
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};
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/* GstVideoflip signals and args */
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enum {
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/* FILL ME */
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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/* FILL ME */
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};
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static void gst_videoflip_class_init (GstVideoflipClass *klass);
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static void gst_videoflip_init (GstVideoflip *videoflip);
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static void gst_videoflip_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
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static void gst_videoflip_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
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static void gst_videoflip_planar411(GstVideofilter *videofilter, void *dest, void *src);
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static void gst_videoflip_setup(GstVideofilter *videofilter);
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static GstVideoflipClass *this_class = NULL;
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static GstVideofilterClass *parent_class = NULL;
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static GstElementClass *element_class = NULL;
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GType
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gst_videoflip_get_type (void)
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{
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static GType videoflip_type = 0;
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if (!videoflip_type) {
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static const GTypeInfo videoflip_info = {
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sizeof(GstVideoflipClass), NULL,
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NULL,
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(GClassInitFunc)gst_videoflip_class_init,
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NULL,
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NULL,
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sizeof(GstVideoflip),
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0,
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(GInstanceInitFunc)gst_videoflip_init,
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};
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videoflip_type = g_type_register_static(GST_TYPE_VIDEOFILTER, "GstVideoflip", &videoflip_info, 0);
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}
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return videoflip_type;
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}
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static GstVideofilterFormat gst_videoflip_formats[] = {
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{ "I420", 12, gst_videoflip_planar411, },
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};
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static void
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gst_videoflip_class_init (GstVideoflipClass *klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstVideofilterClass *gstvideofilter_class;
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int i;
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gobject_class = (GObjectClass*)klass;
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gstelement_class = (GstElementClass*)klass;
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gstvideofilter_class = (GstVideofilterClass *)klass;
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#if 0
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_METHOD,
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g_param_spec_enum("method","method","method",
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GST_TYPE_VIDEOFLIP_METHOD, GST_VIDEOFLIP_METHOD_90R,
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G_PARAM_READWRITE));
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#endif
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this_class = klass;
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parent_class = g_type_class_ref(GST_TYPE_VIDEOFILTER);
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element_class = g_type_class_ref(GST_TYPE_ELEMENT);
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gobject_class->set_property = gst_videoflip_set_property;
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gobject_class->get_property = gst_videoflip_get_property;
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gstvideofilter_class->setup = gst_videoflip_setup;
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for(i=0;i<G_N_ELEMENTS(gst_videoflip_formats);i++){
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gst_videofilter_class_add_format(parent_class, gst_videoflip_formats + i);
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}
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}
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static GstCaps *gst_videoflip_get_capslist(void)
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{
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GstVideofilterClass *klass;
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klass = g_type_class_ref(GST_TYPE_VIDEOFILTER);
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return gst_videofilter_class_get_capslist(klass);
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}
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static GstPadTemplate *
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gst_videoflip_src_template_factory(void)
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{
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static GstPadTemplate *templ = NULL;
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if(!templ){
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GstCaps *caps = GST_CAPS_NEW("src","video/raw",
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"width", GST_PROPS_INT_RANGE (0, G_MAXINT),
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"height", GST_PROPS_INT_RANGE (0, G_MAXINT));
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caps = gst_caps_intersect(caps, gst_videoflip_get_capslist ());
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templ = GST_PAD_TEMPLATE_NEW("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
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}
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return templ;
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}
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static GstPadTemplate *
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gst_videoflip_sink_template_factory(void)
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{
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static GstPadTemplate *templ = NULL;
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if(!templ){
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GstCaps *caps = GST_CAPS_NEW("sink","video/raw",
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"width", GST_PROPS_INT_RANGE (0, G_MAXINT),
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"height", GST_PROPS_INT_RANGE (0, G_MAXINT));
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caps = gst_caps_intersect(caps, gst_videoflip_get_capslist ());
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templ = GST_PAD_TEMPLATE_NEW("src", GST_PAD_SINK, GST_PAD_ALWAYS, caps);
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}
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return templ;
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}
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static void
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gst_videoflip_init (GstVideoflip *videoflip)
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{
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GstVideofilter *videofilter;
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GST_DEBUG("gst_videoflip_init");
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videofilter = GST_VIDEOFILTER(videoflip);
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videofilter->sinkpad = gst_pad_new_from_template (
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GST_PAD_TEMPLATE_GET (gst_videoflip_sink_template_factory),
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"sink");
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videofilter->srcpad = gst_pad_new_from_template (
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GST_PAD_TEMPLATE_GET (gst_videoflip_src_template_factory),
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"src");
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gst_videofilter_postinit(GST_VIDEOFILTER(videoflip));
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}
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static void
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gst_videoflip_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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{
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GstVideoflip *src;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_VIDEOFLIP(object));
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src = GST_VIDEOFLIP(object);
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GST_DEBUG("gst_videoflip_set_property");
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switch (prop_id) {
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#if 0
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case ARG_METHOD:
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src->method = g_value_get_enum (value);
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break;
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#endif
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default:
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break;
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}
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}
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static void
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gst_videoflip_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
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{
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GstVideoflip *src;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_VIDEOFLIP(object));
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src = GST_VIDEOFLIP(object);
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switch (prop_id) {
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#if 0
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case ARG_METHOD:
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g_value_set_enum (value, src->method);
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break;
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#endif
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean plugin_init (GModule *module, GstPlugin *plugin)
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{
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GstElementFactory *factory;
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if(!gst_library_load("gstvideofilter"))
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return FALSE;
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/* create an elementfactory for the videoflip element */
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factory = gst_element_factory_new("videoflip",GST_TYPE_VIDEOFLIP,
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&videoflip_details);
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g_return_val_if_fail(factory != NULL, FALSE);
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gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (gst_videoflip_sink_template_factory));
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gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (gst_videoflip_src_template_factory));
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gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
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return TRUE;
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}
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GstPluginDesc plugin_desc = {
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GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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"videoflip",
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plugin_init
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};
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static void gst_videoflip_setup(GstVideofilter *videofilter)
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{
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GstVideoflip *videoflip;
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g_return_if_fail(GST_IS_VIDEOFLIP(videofilter));
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videoflip = GST_VIDEOFLIP(videofilter);
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/* if any setup needs to be done, do it here */
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}
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static void gst_videoflip_planar411(GstVideofilter *videofilter,
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void *dest, void *src)
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{
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GstVideoflip *videoflip;
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g_return_if_fail(GST_IS_VIDEOFLIP(videofilter));
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videoflip = GST_VIDEOFLIP(videofilter);
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/* do something interesting here */
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}
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61
gst/videofilter/gstvideoflip.h
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61
gst/videofilter/gstvideoflip.h
Normal file
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@ -0,0 +1,61 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_VIDEOFLIP_H__
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#define __GST_VIDEOFLIP_H__
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#include <config.h>
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#include <gst/gst.h>
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#include "gstvideofilter.h"
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEOFLIP \
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(gst_videoflip_get_type())
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#define GST_VIDEOFLIP(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEOFLIP,GstVideoflip))
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#define GST_VIDEOFLIP_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEOFLIP,GstVideoflipClass))
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#define GST_IS_VIDEOFLIP(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEOFLIP))
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#define GST_IS_VIDEOFLIP_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEOFLIP))
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typedef struct _GstVideoflip GstVideoflip;
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typedef struct _GstVideoflipClass GstVideoflipClass;
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struct _GstVideoflip {
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GstVideofilter videofilter;
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};
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struct _GstVideoflipClass {
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GstVideofilterClass parent_class;
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};
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GType gst_videoflip_get_type(void);
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G_END_DECLS
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#endif /* __GST_VIDEOFLIP_H__ */
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