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Original commit message from CVS: * ext/hermes/gsthermescolorspace.c: * ext/ivorbis/vorbisfile.c: * ext/lcs/gstcolorspace.c: * ext/wavpack/gstwavpackenc.h: * ext/xine/xineaudiodec.c: * ext/xine/xineaudiosink.c: * ext/xine/xineinput.c: * gst/chart/gstchart.c: * gst/equalizer/gstiirequalizer.c: * gst/games/gstpuzzle.c: * gst/librfb/gstrfbsrc.c: * gst/mixmatrix/mixmatrix.c: * gst/nsf/gstnsf.h: * gst/vbidec/gstvbidec.c: * gst/virtualdub/gstxsharpen.c: More G_OBJECT macro fixing.
437 lines
11 KiB
C
437 lines
11 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* Filter:
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* Copyright (C) 2000 Donald A. Graft
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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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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <gst/gst.h>
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#include "gstvirtualdub.h"
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#define GST_TYPE_XSHARPEN \
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(gst_xsharpen_get_type())
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#define GST_XSHARPEN(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_XSHARPEN,GstXsharpen))
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#define GST_XSHARPEN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstXsharpen))
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#define GST_IS_XSHARPEN(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_XSHARPEN))
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#define GST_IS_XSHARPEN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_XSHARPEN))
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typedef struct _GstXsharpen GstXsharpen;
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typedef struct _GstXsharpenClass GstXsharpenClass;
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struct _GstXsharpen
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{
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GstElement element;
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GstPad *sinkpad, *srcpad;
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gint width, height;
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gint strength, strengthinv, threshold;
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gint srcpitch, dstpitch;
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};
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struct _GstXsharpenClass
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{
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GstElementClass parent_class;
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};
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static const GstElementDetails gst_xsharpen_details =
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GST_ELEMENT_DETAILS ("Sharpen",
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"Filter/Video/Effect",
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"LGPL",
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"Apply a sharpen effect on video" VERSION,
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"Jeremy SIMON <jsimon13@yahoo.fr>",
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"(C) 2000 Donald Graft");
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/* Filter signals and args */
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enum
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{
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/* FILL ME */
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ARG_STRENGTH,
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ARG_THRESHOLD,
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LAST_SIGNAL
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};
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enum
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{
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ARG_0
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};
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static void gst_xsharpen_class_init (GstXsharpenClass * klass);
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static void gst_xsharpen_init (GstXsharpen * sharpen);
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static void gst_xsharpen_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_xsharpen_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_xsharpen_chain (GstPad * pad, GstData * _data);
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static GstElementClass *parent_class = NULL;
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GType
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gst_xsharpen_get_type (void)
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{
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static GType xsharpen_type = 0;
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if (!xsharpen_type) {
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static const GTypeInfo xsharpen_info = {
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sizeof (GstXsharpenClass), NULL,
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NULL,
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(GClassInitFunc) gst_xsharpen_class_init,
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NULL,
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NULL,
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sizeof (GstXsharpen),
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0,
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(GInstanceInitFunc) gst_xsharpen_init,
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};
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xsharpen_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstXsharpen", &xsharpen_info,
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0);
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}
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return xsharpen_type;
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}
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static void
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gst_xsharpen_class_init (GstXsharpenClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_STRENGTH,
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g_param_spec_int ("strength", "strength", "strength",
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0, 255, 255, (GParamFlags) G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_THRESHOLD,
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g_param_spec_int ("threshold", "threshold", "threshold",
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0, 255, 255, (GParamFlags) G_PARAM_READWRITE));
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gobject_class->set_property = gst_xsharpen_set_property;
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gobject_class->get_property = gst_xsharpen_get_property;
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}
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static GstPadLinkReturn
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gst_xsharpen_sinkconnect (GstPad * pad, GstCaps * caps)
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{
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GstXsharpen *sharpen;
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sharpen = GST_XSHARPEN (gst_pad_get_parent (pad));
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if (!GST_CAPS_IS_FIXED (caps))
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return GST_PAD_LINK_DELAYED;
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gst_caps_get_int (caps, "width", &sharpen->width);
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gst_caps_get_int (caps, "height", &sharpen->height);
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sharpen->strengthinv = 255 - sharpen->strength;
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sharpen->dstpitch = sharpen->srcpitch = sharpen->width * sizeof (Pixel32);
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return gst_pad_try_set_caps (sharpen->srcpad, caps);
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}
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static void
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gst_xsharpen_init (GstXsharpen * sharpen)
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{
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sharpen->sinkpad =
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gst_pad_new_from_template (gst_virtualdub_sink_factory (), "sink");
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gst_pad_set_chain_function (sharpen->sinkpad, gst_xsharpen_chain);
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gst_pad_set_link_function (sharpen->sinkpad, gst_xsharpen_sinkconnect);
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gst_element_add_pad (GST_ELEMENT (sharpen), sharpen->sinkpad);
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sharpen->srcpad =
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gst_pad_new_from_template (gst_virtualdub_src_factory (), "src");
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gst_element_add_pad (GST_ELEMENT (sharpen), sharpen->srcpad);
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}
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static void
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gst_xsharpen_chain (GstPad * pad, GstData * _data)
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{
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GstBuffer *buf = GST_BUFFER (_data);
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GstXsharpen *xsharpen;
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GstBuffer *outbuf;
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gint x, y;
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gint r, g, b, R, G, B;
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Pixel32 p, min, max;
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gint luma, lumac, lumamax, lumamin, mindiff, maxdiff;
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Pixel32 *src_buf, *dst_buf, *src, *dst;
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xsharpen = GST_XSHARPEN (gst_pad_get_parent (pad));
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outbuf = gst_buffer_new ();
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GST_BUFFER_SIZE (outbuf) =
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(xsharpen->width * xsharpen->height * sizeof (Pixel32));
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GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
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GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
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src_buf = (Pixel32 *) GST_BUFFER_DATA (buf);
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dst_buf = (Pixel32 *) GST_BUFFER_DATA (outbuf);
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min = max = 0;
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/* First copy through the four border lines. */
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src = src_buf;
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dst = dst_buf;
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for (x = 0; x < xsharpen->width; x++) {
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dst[x] = src[x];
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}
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src =
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(Pixel *) ((char *) src_buf + (xsharpen->height -
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1) * xsharpen->srcpitch);
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dst =
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(Pixel *) ((char *) dst_buf + (xsharpen->height -
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1) * xsharpen->dstpitch);
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for (x = 0; x < xsharpen->width; x++) {
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dst[x] = src[x];
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}
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src = src_buf;
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dst = dst_buf;
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for (y = 0; y < xsharpen->height; y++) {
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dst[0] = src[0];
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dst[xsharpen->width - 1] = src[xsharpen->width - 1];
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src = (Pixel *) ((char *) src + xsharpen->srcpitch);
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dst = (Pixel *) ((char *) dst + xsharpen->dstpitch);
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}
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/* Now calculate and store the pixel luminances for the remaining pixels. */
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src = src_buf;
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for (y = 0; y < xsharpen->height; y++) {
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for (x = 0; x < xsharpen->width; x++) {
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r = (src[x] >> 16) & 0xff;
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g = (src[x] >> 8) & 0xff;
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b = src[x] & 0xff;
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luma = (55 * r + 182 * g + 19 * b) >> 8;
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src[x] &= 0x00ffffff;
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src[x] |= (luma << 24);
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}
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src = (Pixel *) ((char *) src + xsharpen->srcpitch);
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}
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/* Finally run the 3x3 rank-order sharpening kernel over the pixels. */
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src = (Pixel *) ((char *) src_buf + xsharpen->srcpitch);
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dst = (Pixel *) ((char *) dst_buf + xsharpen->dstpitch);
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for (y = 1; y < xsharpen->height - 1; y++) {
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for (x = 1; x < xsharpen->width - 1; x++) {
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/* Find the brightest and dimmest pixels in the 3x3 window
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surrounding the current pixel. */
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lumamax = -1;
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lumamin = 1000;
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p = ((Pixel32 *) ((char *) src - xsharpen->srcpitch))[x - 1];
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luma = p >> 24;
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if (luma > lumamax) {
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lumamax = luma;
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max = p;
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}
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if (luma < lumamin) {
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lumamin = luma;
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min = p;
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}
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p = ((Pixel32 *) ((char *) src - xsharpen->srcpitch))[x];
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luma = p >> 24;
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if (luma > lumamax) {
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lumamax = luma;
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max = p;
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}
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if (luma < lumamin) {
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lumamin = luma;
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min = p;
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}
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p = ((Pixel32 *) ((char *) src - xsharpen->srcpitch))[x + 1];
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luma = p >> 24;
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if (luma > lumamax) {
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lumamax = luma;
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max = p;
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}
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if (luma < lumamin) {
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lumamin = luma;
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min = p;
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}
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p = src[x - 1];
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luma = p >> 24;
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if (luma > lumamax) {
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lumamax = luma;
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max = p;
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}
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if (luma < lumamin) {
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lumamin = luma;
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min = p;
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}
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p = src[x];
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lumac = luma = p >> 24;
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if (luma > lumamax) {
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lumamax = luma;
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max = p;
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}
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if (luma < lumamin) {
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lumamin = luma;
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min = p;
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}
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p = src[x + 1];
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luma = p >> 24;
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if (luma > lumamax) {
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lumamax = luma;
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max = p;
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}
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if (luma < lumamin) {
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lumamin = luma;
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min = p;
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}
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p = ((Pixel32 *) ((char *) src + xsharpen->srcpitch))[x - 1];
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luma = p >> 24;
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if (luma > lumamax) {
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lumamax = luma;
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max = p;
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}
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if (luma < lumamin) {
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lumamin = luma;
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min = p;
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}
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p = ((Pixel32 *) ((char *) src + xsharpen->srcpitch))[x];
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luma = p >> 24;
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if (luma > lumamax) {
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lumamax = luma;
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max = p;
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}
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if (luma < lumamin) {
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lumamin = luma;
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min = p;
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}
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p = ((Pixel32 *) ((char *) src + xsharpen->srcpitch))[x + 1];
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luma = p >> 24;
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if (luma > lumamax) {
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lumamax = luma;
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max = p;
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}
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if (luma < lumamin) {
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lumamin = luma;
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min = p;
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}
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/* Determine whether the current pixel is closer to the
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brightest or the dimmest pixel. Then compare the current
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pixel to that closest pixel. If the difference is within
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threshold, map the current pixel to the closest pixel;
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otherwise pass it through. */
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p = -1;
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if (xsharpen->strength != 0) {
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mindiff = lumac - lumamin;
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maxdiff = lumamax - lumac;
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if (mindiff > maxdiff) {
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if (maxdiff < xsharpen->threshold) {
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p = max;
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}
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} else {
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if (mindiff < xsharpen->threshold) {
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p = min;
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}
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}
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}
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if (p == -1) {
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dst[x] = src[x];
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} else {
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R = (src[x] >> 16) & 0xff;
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G = (src[x] >> 8) & 0xff;
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B = src[x] & 0xff;
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r = (p >> 16) & 0xff;
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g = (p >> 8) & 0xff;
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b = p & 0xff;
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r = (xsharpen->strength * r + xsharpen->strengthinv * R) / 255;
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g = (xsharpen->strength * g + xsharpen->strengthinv * G) / 255;
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b = (xsharpen->strength * b + xsharpen->strengthinv * B) / 255;
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dst[x] = (r << 16) | (g << 8) | b;
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}
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}
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src = (Pixel *) ((char *) src + xsharpen->srcpitch);
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dst = (Pixel *) ((char *) dst + xsharpen->dstpitch);
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}
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gst_buffer_unref (buf);
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gst_pad_push (xsharpen->srcpad, GST_DATA (outbuf));
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}
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static void
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gst_xsharpen_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstXsharpen *xsharpen;
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g_return_if_fail (GST_IS_XSHARPEN (object));
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xsharpen = GST_XSHARPEN (object);
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switch (prop_id) {
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case ARG_STRENGTH:
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xsharpen->strength = g_value_get_int (value);
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xsharpen->strengthinv = 255 - xsharpen->strength;
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case ARG_THRESHOLD:
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xsharpen->threshold = g_value_get_int (value);
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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_xsharpen_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstXsharpen *xsharpen;
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g_return_if_fail (GST_IS_XSHARPEN (object));
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xsharpen = GST_XSHARPEN (object);
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switch (prop_id) {
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case ARG_STRENGTH:
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g_value_set_int (value, xsharpen->strength);
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break;
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case ARG_THRESHOLD:
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g_value_set_int (value, xsharpen->threshold);
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break;
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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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