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-rw-r--r--gst/smpte/Makefile.am14
-rw-r--r--gst/smpte/barboxwipes.c152
-rw-r--r--gst/smpte/gstmask.c124
-rw-r--r--gst/smpte/gstmask.h73
-rw-r--r--gst/smpte/gstsmpte.c409
-rw-r--r--gst/smpte/gstsmpte.h63
-rw-r--r--gst/smpte/paint.c51
-rw-r--r--gst/smpte/paint.h35
8 files changed, 921 insertions, 0 deletions
diff --git a/gst/smpte/Makefile.am b/gst/smpte/Makefile.am
new file mode 100644
index 00000000..91a6d127
--- /dev/null
+++ b/gst/smpte/Makefile.am
@@ -0,0 +1,14 @@
+plugindir = $(libdir)/gst
+
+plugin_LTLIBRARIES = libgstsmpte.la
+
+libgstsmpte_la_SOURCES = gstsmpte.c gstmask.c barboxwipes.c paint.c
+
+noinst_HEADERS = gstsmpte.h gstmask.h paint.h
+
+libgstsmpte_la_CFLAGS = -O2 -ffast-math $(GST_CFLAGS)
+libgstsmpte_la_LIBADD =
+libgstsmpte_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+EXTRA_DIST =
+
diff --git a/gst/smpte/barboxwipes.c b/gst/smpte/barboxwipes.c
new file mode 100644
index 00000000..031c282a
--- /dev/null
+++ b/gst/smpte/barboxwipes.c
@@ -0,0 +1,152 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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 "paint.h"
+#include "gstmask.h"
+
+static void
+gst_bar_wipe_lr_update (GstMask *mask,
+ GstClockTime position,
+ GstClockTime duration)
+{
+ gint width = mask->width;
+ gint height = mask->height;
+ gint split = (position * width) / duration;
+
+ gst_smpte_paint_rect (mask->data, width, split, 0, width - split, height, 0);
+ gst_smpte_paint_rect (mask->data, width, 0, 0, split, height, 255);
+}
+
+static void
+gst_bar_wipe_tb_update (GstMask *mask,
+ GstClockTime position,
+ GstClockTime duration)
+{
+ gint width = mask->width;
+ gint height = mask->height;
+ gint split = (position * height) / duration;
+
+ gst_smpte_paint_rect (mask->data, width, 0, 0, width, split, 255);
+ gst_smpte_paint_rect (mask->data, width, 0, split, width, height - split, 0);
+}
+
+static void
+gst_box_wipe_update (GstMask *mask,
+ GstClockTime position,
+ GstClockTime duration)
+{
+ static gint box_wipe_impacts[8][4] =
+ {
+ /* 3 -> 6 */
+ { 0, 0, 0, 0 },
+ { 2, 2, 0, 0 },
+ { 2, 2, 2, 2 },
+ { 0, 0, 2, 2 },
+ /* 23 -> 26 */
+ { 1, 1, 0, 0 },
+ { 2, 2, 1, 1 },
+ { 1, 1, 2, 2 },
+ { 0, 0, 1, 1 },
+ };
+ gint *impacts = box_wipe_impacts[(mask->type & 0x0F) - 3];
+ gint width = mask->width;
+ gint height = mask->height;
+ gint splitx = (position * width) / duration;
+ gint splity = (position * height) / duration;
+
+ gst_smpte_paint_rect (mask->data, width, 0, 0, width, height, 0);
+ gst_smpte_paint_rect (mask->data, width,
+ (impacts[0] * width)/2 - (impacts[1] * splitx)/2,
+ (impacts[2] * height)/2 - (impacts[3] * splity)/2,
+ splitx, splity, 255);
+}
+
+static void
+gst_fourc_box_wipe_update (GstMask *mask,
+ GstClockTime position,
+ GstClockTime duration)
+{
+ static gint box_wipe_impacts[8][4] =
+ {
+ { 0, 0, 0, 0 },
+ { 1, 1, 1, 1 },
+ { 4, 2, 0, 0 },
+ { 3, 1, 1, 1 },
+ { 4, 2, 4, 2 },
+ { 1, 1, 3, 1 },
+ { 0, 0, 4, 2 },
+ { 3, 1, 3, 1 },
+ };
+ gint *impacts;
+ gint width = mask->width;
+ gint height = mask->height;
+ gint splitx = (position * width/2) / duration;
+ gint splity = (position * height/2) / duration;
+ gint i;
+
+ gst_smpte_paint_rect (mask->data, width, 0, 0, width, height, 0);
+
+ for (i = 7; i > 0; i -= 2) {
+ impacts = box_wipe_impacts[mask->type - i];
+ gst_smpte_paint_rect (mask->data, width,
+ (impacts[0] * width)/4 - (impacts[1] * splitx)/2,
+ (impacts[2] * height)/4 - (impacts[3] * splity)/2,
+ splitx, splity, 255);
+ }
+}
+
+static GstMaskDefinition definitions[] = {
+ { 1, "bar_wipe_lr", "A bar moves from left to right",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_bar_wipe_lr_update },
+ { 2, "bar_wipe_tb", "A bar moves from top to bottom",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_bar_wipe_tb_update },
+ { 3, "box_wipe_tl", "A box expands from the upper-left corner to the lower-right corner",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 4, "box_wipe_tr", "A box expands from the upper-right corner to the lower-left corner",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 5, "box_wipe_br", "A box expands from the lower-right corner to the upper-left corner",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 6, "box_wipe_bl", "A box expands from the lower-left corner to the upper-right corner",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 23, "box_wipe_tc", "A box expands from the top edge's midpoint to the bottom corners",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 24, "box_wipe_rc", "A box expands from the right edge's midpoint to the left corners",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 25, "box_wipe_bc", "A box expands from the bottom edge's midpoint to the top corners",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 26, "box_wipe_lc", "A box expands from the left edge's midpoint to the right corners",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 7 , "four_box_wipe_ci", "A box shape expands from each of the four corners toward the center",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_fourc_box_wipe_update },
+ { 8 , "four_box_wipe_co", "A box shape expands from the center of each quadrant toward the corners of each quadrant",
+ _gst_mask_default_new, _gst_mask_default_destroy, gst_fourc_box_wipe_update },
+ { 0, NULL, NULL, NULL }
+};
+
+void
+_gst_barboxwipes_register (void)
+{
+ gint i = 0;
+
+ while (definitions[i].short_name) {
+ _gst_mask_register (&definitions[i]);
+ i++;
+ }
+}
+
diff --git a/gst/smpte/gstmask.c b/gst/smpte/gstmask.c
new file mode 100644
index 00000000..a26d7190
--- /dev/null
+++ b/gst/smpte/gstmask.c
@@ -0,0 +1,124 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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 "gstmask.h"
+
+extern void _gst_barboxwipes_register (void);
+
+static GList *masks = NULL;
+
+void
+_gst_mask_init (void)
+{
+ _gst_barboxwipes_register ();
+}
+
+static gint
+gst_mask_compare (GstMaskDefinition *def1,
+ GstMaskDefinition *def2)
+{
+ return (def1->type - def2->type);
+}
+
+void
+_gst_mask_register (GstMaskDefinition *definition)
+{
+ masks = g_list_insert_sorted (masks, definition, (GCompareFunc) gst_mask_compare);
+}
+
+const GList*
+gst_mask_get_definitions (void)
+{
+ return masks;
+}
+
+static GstMaskDefinition*
+gst_mask_find_definition (gint type)
+{
+ GList *walk = masks;
+
+ while (walk) {
+ GstMaskDefinition *def = (GstMaskDefinition *) walk->data;
+
+ if (def->type == type)
+ return def;
+
+ walk = g_list_next (walk);
+ }
+ return NULL;
+}
+
+GstMask*
+gst_mask_factory_new (gint type, gint bpp, gint width, gint height)
+{
+ GstMaskDefinition *definition;
+ GstMask *mask = NULL;
+
+ definition = gst_mask_find_definition (type);
+ if (definition) {
+ mask = definition->new_func (definition, bpp, width, height);
+ }
+
+ return mask;
+}
+
+GstMask*
+_gst_mask_default_new (GstMaskDefinition *definition,
+ gint bpp, gint width, gint height)
+{
+ GstMask *mask;
+
+ mask = g_new0 (GstMask, 1);
+
+ mask->type = definition->type;
+ mask->bpp = bpp;
+ mask->width = width;
+ mask->height = height;
+ mask->update_func = definition->update_func;
+ mask->destroy_func = definition->destroy_func;
+ mask->data = g_malloc (width * height * (bpp+7)>>3);
+
+ return mask;
+}
+
+void
+_gst_mask_default_destroy (GstMask *mask)
+{
+ g_free (mask->data);
+ g_free (mask);
+}
+
+void
+gst_mask_destroy (GstMask *mask)
+{
+ if (mask->destroy_func)
+ mask->destroy_func (mask);
+}
+
+void
+gst_mask_update (GstMask *mask,
+ GstClockTime position,
+ GstClockTime duration)
+{
+ g_return_if_fail (mask != NULL);
+
+ if (mask->update_func)
+ mask->update_func (mask, position, duration);
+}
diff --git a/gst/smpte/gstmask.h b/gst/smpte/gstmask.h
new file mode 100644
index 00000000..f53fb99f
--- /dev/null
+++ b/gst/smpte/gstmask.h
@@ -0,0 +1,73 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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.
+ */
+
+
+#ifndef __GST_MASK_H__
+#define __GST_MASK_H__
+
+#include <gst/gst.h>
+
+
+typedef struct _GstMask GstMask;
+typedef struct _GstMaskDefinition GstMaskDefinition;
+
+typedef GstMask* (*GstMaskNewFunc) (GstMaskDefinition *definition,
+ gint bpp, gint width, gint height);
+typedef void (*GstMaskDestroyFunc) (GstMask *mask);
+typedef void (*GstMaskUpdateFunc) (GstMask *mask,
+ GstClockTime position,
+ GstClockTime duration);
+struct _GstMaskDefinition {
+ gint type;
+ gchar *short_name;
+ gchar *long_name;
+ GstMaskNewFunc new_func;
+ GstMaskDestroyFunc destroy_func;
+ GstMaskUpdateFunc update_func;
+};
+
+struct _GstMask {
+ gint type;
+ guint8 *data;
+
+ gint width;
+ gint height;
+ gint bpp;
+
+ GstMaskUpdateFunc update_func;
+ GstMaskDestroyFunc destroy_func;
+};
+
+void _gst_mask_init (void);
+void _gst_mask_register (GstMaskDefinition *definition);
+
+GstMask* _gst_mask_default_new (GstMaskDefinition *definition,
+ gint bpp, gint width, gint height);
+void _gst_mask_default_destroy (GstMask *mask);
+
+const GList* gst_mask_get_definitions (void);
+GstMask* gst_mask_factory_new (gint type, gint bpp, gint width, gint height);
+void gst_mask_destroy (GstMask *mask);
+
+void gst_mask_update (GstMask *mask,
+ GstClockTime position,
+ GstClockTime duration);
+
+
+#endif /* __GST_MASK_H__ */
diff --git a/gst/smpte/gstsmpte.c b/gst/smpte/gstsmpte.c
new file mode 100644
index 00000000..536be8d4
--- /dev/null
+++ b/gst/smpte/gstsmpte.c
@@ -0,0 +1,409 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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 <gstsmpte.h>
+#include "paint.h"
+
+/* elementfactory information */
+static GstElementDetails smpte_details = {
+ "SMPTE transitions",
+ "Filter/Video",
+ "LGPL",
+ "Apply the standard SMPTE transitions on video images",
+ VERSION,
+ "Wim Taymans <wim.taymans@chello.be>",
+ "(C) 2002",
+};
+
+GST_PAD_TEMPLATE_FACTORY (smpte_src_factory,
+ "src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_CAPS_NEW (
+ "smpte_src",
+ "video/raw",
+ "format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420"))
+ )
+)
+
+GST_PAD_TEMPLATE_FACTORY (smpte_sink1_factory,
+ "sink1",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_CAPS_NEW (
+ "smpte_sink1",
+ "video/raw",
+ "format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
+ "width", GST_PROPS_INT_RANGE (0, 4096),
+ "height", GST_PROPS_INT_RANGE (0, 4096)
+ )
+)
+
+GST_PAD_TEMPLATE_FACTORY (smpte_sink2_factory,
+ "sink2",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_CAPS_NEW (
+ "smpte_sink2",
+ "video/raw",
+ "format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
+ "width", GST_PROPS_INT_RANGE (0, 4096),
+ "height", GST_PROPS_INT_RANGE (0, 4096)
+ )
+)
+
+
+/* SMPTE signals and args */
+enum {
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum {
+ ARG_0,
+ ARG_TYPE,
+};
+
+#define GST_TYPE_SMPTE_TRANSITION_TYPE (gst_smpte_transition_type_get_type())
+static GType
+gst_smpte_transition_type_get_type (void)
+{
+ static GType smpte_transition_type = 0;
+ GEnumValue *smpte_transitions;
+
+ if (!smpte_transition_type) {
+ const GList *definitions;
+ gint i=0;
+
+ definitions = gst_mask_get_definitions ();
+ smpte_transitions = g_new0 (GEnumValue, g_list_length ((GList *)definitions)+1);
+
+ while (definitions) {
+ GstMaskDefinition *definition = (GstMaskDefinition *) definitions->data;
+ definitions = g_list_next (definitions);
+
+ smpte_transitions[i].value = definition->type;
+ smpte_transitions[i].value_name = definition->short_name;
+ smpte_transitions[i].value_nick = definition->long_name;
+
+ i++;
+ }
+
+ smpte_transition_type = g_enum_register_static ("GstSMPTETransitionType", smpte_transitions);
+ }
+ return smpte_transition_type;
+}
+
+
+static void gst_smpte_class_init (GstSMPTEClass *klass);
+static void gst_smpte_init (GstSMPTE *smpte);
+
+static void gst_smpte_loop (GstElement *element);
+
+static void gst_smpte_set_property (GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *pspec);
+static void gst_smpte_get_property (GObject *object, guint prop_id,
+ GValue *value, GParamSpec *pspec);
+
+static GstElementClass *parent_class = NULL;
+/*static guint gst_smpte_signals[LAST_SIGNAL] = { 0 }; */
+
+static GType
+gst_smpte_get_type (void)
+{
+ static GType smpte_type = 0;
+
+ if (!smpte_type) {
+ static const GTypeInfo smpte_info = {
+ sizeof(GstSMPTEClass),
+ NULL,
+ NULL,
+ (GClassInitFunc)gst_smpte_class_init,
+ NULL,
+ NULL,
+ sizeof(GstSMPTE),
+ 0,
+ (GInstanceInitFunc)gst_smpte_init,
+ };
+ smpte_type = g_type_register_static(GST_TYPE_ELEMENT, "GstSMPTE", &smpte_info, 0);
+ }
+ return smpte_type;
+}
+
+static void
+gst_smpte_class_init (GstSMPTEClass *klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass*)klass;
+ gstelement_class = (GstElementClass*)klass;
+
+ parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+
+ gobject_class->set_property = gst_smpte_set_property;
+ gobject_class->get_property = gst_smpte_get_property;
+
+ _gst_mask_init ();
+
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TYPE,
+ g_param_spec_enum ("type", "Type", "The type of transition to use",
+ GST_TYPE_SMPTE_TRANSITION_TYPE, 1, G_PARAM_READWRITE));
+
+}
+
+/* wht yel cya grn mag red blu blk -I Q */
+static int y_colors[] = { 255, 226, 179, 150, 105, 76, 29, 16, 16, 0 };
+static int u_colors[] = { 128, 0, 170, 46, 212, 85, 255, 128, 0, 128 };
+static int v_colors[] = { 128, 155, 0, 21, 235, 255, 107, 128, 128, 255 };
+
+static void
+fill_i420 (guint8 *data, gint width, gint height, gint color)
+{
+ guint8 *yp = data;
+ guint8 *up = data + width * height;
+ guint8 *vp = data + width * height + (width * height) / 4;
+
+ gst_smpte_paint_rect (yp, width, 0, 0, width, height, y_colors[color]);
+ gst_smpte_paint_rect (up, width/2, 0, 0, width/2, height/2, u_colors[color]);
+ gst_smpte_paint_rect (vp, width/2, 0, 0, width/2, height/2, v_colors[color]);
+}
+
+static gboolean
+gst_smpte_sinkconnect (GstPad *pad, GstCaps *caps)
+{
+ GstSMPTE *smpte;
+
+ smpte = GST_SMPTE (gst_pad_get_parent (pad));
+
+ if (!GST_CAPS_IS_FIXED (caps))
+ return GST_PAD_CONNECT_DELAYED;
+
+ gst_caps_get_int (caps, "width", &smpte->width);
+ gst_caps_get_int (caps, "height", &smpte->height);
+
+ smpte->mask = gst_mask_factory_new (smpte->type, 8, smpte->width, smpte->height);
+
+ /* forward to the next plugin */
+ return gst_pad_try_set_caps(smpte->srcpad, gst_caps_copy_1(caps));
+}
+
+static void
+gst_smpte_init (GstSMPTE *smpte)
+{
+ smpte->sinkpad1 = gst_pad_new_from_template (
+ GST_PAD_TEMPLATE_GET (smpte_sink1_factory), "sink1");
+ gst_pad_set_connect_function (smpte->sinkpad1, gst_smpte_sinkconnect);
+ gst_element_add_pad (GST_ELEMENT (smpte), smpte->sinkpad1);
+
+ smpte->sinkpad2 = gst_pad_new_from_template (
+ GST_PAD_TEMPLATE_GET (smpte_sink2_factory), "sink2");
+ gst_pad_set_connect_function (smpte->sinkpad2, gst_smpte_sinkconnect);
+ gst_element_add_pad (GST_ELEMENT (smpte), smpte->sinkpad2);
+
+ smpte->srcpad = gst_pad_new_from_template (
+ GST_PAD_TEMPLATE_GET (smpte_src_factory), "src");
+ gst_element_add_pad (GST_ELEMENT (smpte), smpte->srcpad);
+
+ gst_element_set_loop_function (GST_ELEMENT (smpte), gst_smpte_loop);
+
+ smpte->width = 320;
+ smpte->height = 200;
+ smpte->duration = 64;
+ smpte->position = 0;
+ smpte->type = 1;
+ smpte->mask = gst_mask_factory_new (smpte->type, 8, smpte->width, smpte->height);
+}
+
+static void
+gst_smpte_blend_i420 (guint8 *in1, guint8 *in2, guint8 *out, GstMask *mask,
+ gint width, gint height)
+{
+ gint i, j;
+ guint8 *maskporig, *maskp;
+ guint8 *in1u, *in1v, *in2u, *in2v, *outu, *outv;
+ guint8 value;
+ gint chromsize = (width * height) >> 2;
+
+ maskp = maskporig = mask->data;
+
+ for (i = width * height; i; i--) {
+ value = *maskp++;
+ *out++ = ((*in2++ * value) + (*in1++ * (255 - value))) >> 8;
+ }
+ in1u = in1; in1v = in1 + chromsize;
+ in2u = in2; in2v = in2 + chromsize;
+ outu = out; outv = out + chromsize;
+
+ maskp = maskporig;
+ for (i = height/2; i; i--, maskp += width) {
+ for (j = width/2; j; j--, maskp += 2) {
+ value = *maskp;
+ *outu++ = ((*in2u++ * value) + (*in1u++ * (255 - value))) >> 8;
+ *outv++ = ((*in2v++ * value) + (*in1v++ * (255 - value))) >> 8;
+ }
+ }
+}
+
+static void
+gst_smpte_loop (GstElement *element)
+{
+ GstSMPTE *smpte;
+ GstBuffer *outbuf;
+ GstClockTime ts;
+ GstBuffer *in1 = NULL, *in2 = NULL;
+
+ smpte = GST_SMPTE (element);
+
+ ts = smpte->position * GST_SECOND;
+
+ if (GST_PAD_IS_USABLE (smpte->sinkpad1)) {
+ in1 = gst_pad_pull (smpte->sinkpad1);
+ ts = GST_BUFFER_TIMESTAMP (in1);
+ }
+ else {
+ in1 = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
+ fill_i420 (GST_BUFFER_DATA (in1), smpte->width, smpte->height, 7);
+ }
+
+ if (GST_PAD_IS_USABLE (smpte->sinkpad2)) {
+ in2 = gst_pad_pull (smpte->sinkpad2);
+ ts = GST_BUFFER_TIMESTAMP (in2);
+ }
+ else {
+ in2 = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
+ fill_i420 (GST_BUFFER_DATA (in2), smpte->width, smpte->height, 0);
+ }
+
+ if (smpte->position < smpte->duration) {
+ outbuf = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
+
+ if (!GST_PAD_CAPS (smpte->srcpad)) {
+ if (!gst_pad_try_set_caps (smpte->srcpad,
+ GST_CAPS_NEW (
+ "smpte_srccaps",
+ "video/raw",
+ "format", GST_PROPS_FOURCC (GST_MAKE_FOURCC ('I','4','2','0')),
+ "width", GST_PROPS_INT (smpte->width),
+ "height", GST_PROPS_INT (smpte->height)
+ )))
+ {
+ gst_element_error (element, "cannot set caps");
+ return;
+ }
+ }
+
+ gst_mask_update (smpte->mask, smpte->position, smpte->duration);
+
+ gst_smpte_blend_i420 (GST_BUFFER_DATA (in1), GST_BUFFER_DATA (in2), GST_BUFFER_DATA (outbuf),
+ smpte->mask, smpte->width, smpte->height);
+ }
+ else {
+ outbuf = in2;
+ gst_buffer_ref (in2);
+ }
+
+ smpte->position++;
+
+ if (in1)
+ gst_buffer_unref (in1);
+ if (in2)
+ gst_buffer_unref (in2);
+
+ GST_BUFFER_TIMESTAMP (outbuf) = ts;
+ gst_pad_push (smpte->srcpad, outbuf);
+}
+
+static void
+gst_smpte_set_property (GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *pspec)
+{
+ GstSMPTE *smpte;
+
+ smpte = GST_SMPTE(object);
+
+ switch (prop_id) {
+ case ARG_TYPE:
+ {
+ GstMask *newmask;
+ gint type = g_value_get_enum (value);
+
+ newmask = gst_mask_factory_new (type, 8, smpte->width, smpte->height);
+ if (newmask) {
+ if (smpte->mask) {
+ gst_mask_destroy (smpte->mask);
+ }
+ smpte->mask = newmask;
+ smpte->type = type;
+ }
+ break;
+ }
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_smpte_get_property (GObject *object, guint prop_id,
+ GValue *value, GParamSpec *pspec)
+{
+ GstSMPTE *smpte;
+
+ smpte = GST_SMPTE(object);
+
+ switch (prop_id) {
+ case ARG_TYPE:
+ if (smpte->mask) {
+ g_value_set_enum (value, smpte->mask->type);
+ }
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+ GstElementFactory *factory;
+
+ factory = gst_element_factory_new("smpte",GST_TYPE_SMPTE,
+ &smpte_details);
+ g_return_val_if_fail(factory != NULL, FALSE);
+
+ gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (smpte_sink1_factory));
+ gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (smpte_sink2_factory));
+ gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (smpte_src_factory));
+
+ gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+ return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+ GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "smpte",
+ plugin_init
+};
+
diff --git a/gst/smpte/gstsmpte.h b/gst/smpte/gstsmpte.h
new file mode 100644
index 00000000..5ba6278a
--- /dev/null
+++ b/gst/smpte/gstsmpte.h
@@ -0,0 +1,63 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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.
+ */
+
+
+#ifndef __GST_SMPTE_H__
+#define __GST_SMPTE_H__
+
+#include <gst/gst.h>
+#include <gstmask.h>
+
+#define GST_TYPE_SMPTE \
+ (gst_smpte_get_type())
+#define GST_SMPTE(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SMPTE,GstSMPTE))
+#define GST_SMPTE_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SMPTE,GstSMPTE))
+#define GST_IS_SMPTE(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SMPTE))
+#define GST_IS_SMPTE_CLASS(obj) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SMPTE))
+
+typedef struct _GstSMPTE GstSMPTE;
+typedef struct _GstSMPTEClass GstSMPTEClass;
+
+struct _GstSMPTE {
+ GstElement element;
+
+ gint format;
+ gint width;
+ gint height;
+
+ gint duration;
+ gint position;
+
+ GstPad *srcpad,
+ *sinkpad1,
+ *sinkpad2;
+
+ gint type;
+ GstMask *mask;
+};
+
+struct _GstSMPTEClass {
+ GstElementClass parent_class;
+};
+
+#endif /* __GST_SMPTE_H__ */
diff --git a/gst/smpte/paint.c b/gst/smpte/paint.c
new file mode 100644
index 00000000..0fb96d77
--- /dev/null
+++ b/gst/smpte/paint.c
@@ -0,0 +1,51 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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 "paint.h"
+
+void
+gst_smpte_paint_rect (guint8 *dest, gint stride, gint x, gint y, gint w, gint h, guint8 color)
+{
+ guint8 *d = dest + stride * y + x;
+ gint i;
+
+ for (i = 0; i < h; i++) {
+ memset (d, color, w);
+ d += stride;
+ }
+}
+
+void
+gst_smpte_paint_rect_s (guint8 *dest, gint stride, gint x, gint y, gint w, gint h, guint8 color)
+{
+ guint8 *d = dest + stride * y + x;
+ gint i, j;
+ gint border = 100;
+
+ for (i = 0; i < h; i++) {
+ if (w - border > 0) {
+ memset (d, color, w - border);
+ }
+
+ for (j = 0; j < border - w; j++) {
+ *(d+w+j) = (color*(border-j)/border);
+ }
+ d += stride;
+ }
+}
diff --git a/gst/smpte/paint.h b/gst/smpte/paint.h
new file mode 100644
index 00000000..fc51a638
--- /dev/null
+++ b/gst/smpte/paint.h
@@ -0,0 +1,35 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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.
+ */
+
+#ifndef __GST_SMPTE_PAINT_H__
+#define __GST_SMPTE_PAINT_H__
+
+#include <glib.h>
+
+void gst_smpte_paint_rect (guint8 *dest, gint stride,
+ gint x, gint y, gint w, gint h,
+ guint8 color);
+
+void gst_smpte_paint_rect_s (guint8 *dest, gint stride,
+ gint x, gint y, gint w, gint h,
+ guint8 color);
+
+
+
+#endif /* __GST_SMPTE_PAINT_H__ */
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-01 15:56:14 +0000