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Diffstat (limited to 'gst/virtualdub/gstxsharpen.c')
-rw-r--r--gst/virtualdub/gstxsharpen.c349
1 files changed, 163 insertions, 186 deletions
diff --git a/gst/virtualdub/gstxsharpen.c b/gst/virtualdub/gstxsharpen.c
index bc83ed62..df4d4547 100644
--- a/gst/virtualdub/gstxsharpen.c
+++ b/gst/virtualdub/gstxsharpen.c
@@ -57,8 +57,7 @@ GstElementDetails gst_xsharpen_details = {
"",
"Filter/Video/Effect",
"LGPL",
- "Apply a sharpen effect on video"
- VERSION,
+ "Apply a sharpen effect on video" VERSION,
"Jeremy SIMON <jsimon13@yahoo.fr>",
"(C) 2000 Donald Graft",
};
@@ -78,19 +77,20 @@ enum
ARG_0,
};
-static void gst_xsharpen_class_init (GstXsharpenClass * klass);
-static void gst_xsharpen_init (GstXsharpen * sharpen);
+static void gst_xsharpen_class_init (GstXsharpenClass * klass);
+static void gst_xsharpen_init (GstXsharpen * sharpen);
-static void gst_xsharpen_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_xsharpen_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
+static void gst_xsharpen_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_xsharpen_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
-static void gst_xsharpen_chain (GstPad * pad, GstData *_data);
+static void gst_xsharpen_chain (GstPad * pad, GstData * _data);
static GstElementClass *parent_class = NULL;
-GType gst_xsharpen_get_type (void)
+GType
+gst_xsharpen_get_type (void)
{
static GType xsharpen_type = 0;
@@ -106,7 +106,9 @@ GType gst_xsharpen_get_type (void)
(GInstanceInitFunc) gst_xsharpen_init,
};
- xsharpen_type = g_type_register_static (GST_TYPE_ELEMENT, "GstXsharpen", &xsharpen_info, 0);
+ xsharpen_type =
+ g_type_register_static (GST_TYPE_ELEMENT, "GstXsharpen", &xsharpen_info,
+ 0);
}
return xsharpen_type;
}
@@ -122,13 +124,13 @@ gst_xsharpen_class_init (GstXsharpenClass * klass)
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_STRENGTH,
- g_param_spec_int("strength", "strength", "strength",
- 0, 255, 255, (GParamFlags)G_PARAM_READWRITE ));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_STRENGTH,
+ g_param_spec_int ("strength", "strength", "strength",
+ 0, 255, 255, (GParamFlags) G_PARAM_READWRITE));
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_THRESHOLD,
- g_param_spec_int("threshold", "threshold", "threshold",
- 0, 255, 255, (GParamFlags)G_PARAM_READWRITE ));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_THRESHOLD,
+ g_param_spec_int ("threshold", "threshold", "threshold",
+ 0, 255, 255, (GParamFlags) G_PARAM_READWRITE));
gobject_class->set_property = gst_xsharpen_set_property;
gobject_class->get_property = gst_xsharpen_get_property;
@@ -147,7 +149,7 @@ gst_xsharpen_sinkconnect (GstPad * pad, GstCaps * caps)
gst_caps_get_int (caps, "width", &sharpen->width);
gst_caps_get_int (caps, "height", &sharpen->height);
- sharpen->strengthinv = 255 - sharpen->strength;
+ sharpen->strengthinv = 255 - sharpen->strength;
sharpen->dstpitch = sharpen->srcpitch = sharpen->width * sizeof (Pixel32);
@@ -157,72 +159,74 @@ gst_xsharpen_sinkconnect (GstPad * pad, GstCaps * caps)
static void
gst_xsharpen_init (GstXsharpen * sharpen)
{
- sharpen->sinkpad = gst_pad_new_from_template (gst_virtualdub_sink_factory (), "sink");
+ sharpen->sinkpad =
+ gst_pad_new_from_template (gst_virtualdub_sink_factory (), "sink");
gst_pad_set_chain_function (sharpen->sinkpad, gst_xsharpen_chain);
gst_pad_set_link_function (sharpen->sinkpad, gst_xsharpen_sinkconnect);
gst_element_add_pad (GST_ELEMENT (sharpen), sharpen->sinkpad);
- sharpen->srcpad = gst_pad_new_from_template (gst_virtualdub_src_factory (), "src");
+ sharpen->srcpad =
+ gst_pad_new_from_template (gst_virtualdub_src_factory (), "src");
gst_element_add_pad (GST_ELEMENT (sharpen), sharpen->srcpad);
}
static void
-gst_xsharpen_chain (GstPad * pad, GstData *_data)
+gst_xsharpen_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstXsharpen *xsharpen;
- GstBuffer *outbuf;
- gint x, y;
- gint r, g, b, R, G, B;
- Pixel32 p, min, max;
- gint luma, lumac, lumamax, lumamin, mindiff, maxdiff;
- Pixel32 *src_buf, *dst_buf, *src, *dst;
+ GstBuffer *outbuf;
+ gint x, y;
+ gint r, g, b, R, G, B;
+ Pixel32 p, min, max;
+ gint luma, lumac, lumamax, lumamin, mindiff, maxdiff;
+ Pixel32 *src_buf, *dst_buf, *src, *dst;
xsharpen = GST_XSHARPEN (gst_pad_get_parent (pad));
- outbuf = gst_buffer_new ();
- GST_BUFFER_SIZE (outbuf) = ( xsharpen->width * xsharpen->height * sizeof (Pixel32));
+ outbuf = gst_buffer_new ();
+ GST_BUFFER_SIZE (outbuf) =
+ (xsharpen->width * xsharpen->height * sizeof (Pixel32));
GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
-
- src_buf = (Pixel32 *)GST_BUFFER_DATA (buf);
- dst_buf = (Pixel32 *)GST_BUFFER_DATA (outbuf);
+
+ src_buf = (Pixel32 *) GST_BUFFER_DATA (buf);
+ dst_buf = (Pixel32 *) GST_BUFFER_DATA (outbuf);
min = max = 0;
/* First copy through the four border lines. */
src = src_buf;
dst = dst_buf;
- for (x = 0; x < xsharpen->width; x++)
- {
+ for (x = 0; x < xsharpen->width; x++) {
dst[x] = src[x];
}
-
- src = (Pixel *)((char *)src_buf + (xsharpen->height - 1) * xsharpen->srcpitch);
- dst = (Pixel *)((char *)dst_buf + (xsharpen->height - 1) * xsharpen->dstpitch);
-
- for (x = 0; x < xsharpen->width; x++)
- {
+
+ src =
+ (Pixel *) ((char *) src_buf + (xsharpen->height -
+ 1) * xsharpen->srcpitch);
+ dst =
+ (Pixel *) ((char *) dst_buf + (xsharpen->height -
+ 1) * xsharpen->dstpitch);
+
+ for (x = 0; x < xsharpen->width; x++) {
dst[x] = src[x];
}
-
+
src = src_buf;
dst = dst_buf;
-
- for (y = 0; y < xsharpen->height; y++)
- {
+
+ for (y = 0; y < xsharpen->height; y++) {
dst[0] = src[0];
- dst[xsharpen->width-1] = src[xsharpen->width-1];
- src = (Pixel *)((char *)src + xsharpen->srcpitch);
- dst = (Pixel *)((char *)dst + xsharpen->dstpitch);
+ dst[xsharpen->width - 1] = src[xsharpen->width - 1];
+ src = (Pixel *) ((char *) src + xsharpen->srcpitch);
+ dst = (Pixel *) ((char *) dst + xsharpen->dstpitch);
}
/* Now calculate and store the pixel luminances for the remaining pixels. */
src = src_buf;
- for (y = 0; y < xsharpen->height; y++)
- {
- for (x = 0; x < xsharpen->width; x++)
- {
+ for (y = 0; y < xsharpen->height; y++) {
+ for (x = 0; x < xsharpen->width; x++) {
r = (src[x] >> 16) & 0xff;
g = (src[x] >> 8) & 0xff;
b = src[x] & 0xff;
@@ -230,138 +234,118 @@ gst_xsharpen_chain (GstPad * pad, GstData *_data)
src[x] &= 0x00ffffff;
src[x] |= (luma << 24);
}
- src = (Pixel *)((char *)src + xsharpen->srcpitch);
+ src = (Pixel *) ((char *) src + xsharpen->srcpitch);
}
/* Finally run the 3x3 rank-order sharpening kernel over the pixels. */
- src = (Pixel *)((char *)src_buf + xsharpen->srcpitch);
- dst = (Pixel *)((char *)dst_buf + xsharpen->dstpitch);
-
- for (y = 1; y < xsharpen->height - 1; y++)
- {
- for (x = 1; x < xsharpen->width - 1; x++)
- {
+ src = (Pixel *) ((char *) src_buf + xsharpen->srcpitch);
+ dst = (Pixel *) ((char *) dst_buf + xsharpen->dstpitch);
+
+ for (y = 1; y < xsharpen->height - 1; y++) {
+ for (x = 1; x < xsharpen->width - 1; x++) {
/* Find the brightest and dimmest pixels in the 3x3 window
surrounding the current pixel. */
-
+
lumamax = -1;
lumamin = 1000;
-
- p = ((Pixel32 *)((char *)src - xsharpen->srcpitch))[x-1];
+
+ p = ((Pixel32 *) ((char *) src - xsharpen->srcpitch))[x - 1];
luma = p >> 24;
- if (luma > lumamax)
- {
- lumamax = luma;
- max = p;
+ if (luma > lumamax) {
+ lumamax = luma;
+ max = p;
}
- if (luma < lumamin)
- {
- lumamin = luma;
- min = p;
+ if (luma < lumamin) {
+ lumamin = luma;
+ min = p;
}
- p = ((Pixel32 *)((char *)src - xsharpen->srcpitch))[x];
+ p = ((Pixel32 *) ((char *) src - xsharpen->srcpitch))[x];
luma = p >> 24;
- if (luma > lumamax)
- {
- lumamax = luma;
- max = p;
+ if (luma > lumamax) {
+ lumamax = luma;
+ max = p;
}
- if (luma < lumamin)
- {
- lumamin = luma;
- min = p;
+ if (luma < lumamin) {
+ lumamin = luma;
+ min = p;
}
-
- p = ((Pixel32 *)((char *)src - xsharpen->srcpitch))[x+1];
+
+ p = ((Pixel32 *) ((char *) src - xsharpen->srcpitch))[x + 1];
luma = p >> 24;
- if (luma > lumamax)
- {
- lumamax = luma;
- max = p;
+ if (luma > lumamax) {
+ lumamax = luma;
+ max = p;
}
- if (luma < lumamin)
- {
- lumamin = luma;
- min = p;
+ if (luma < lumamin) {
+ lumamin = luma;
+ min = p;
}
-
- p = src[x-1];
+
+ p = src[x - 1];
luma = p >> 24;
- if (luma > lumamax)
- {
- lumamax = luma;
- max = p;
+ if (luma > lumamax) {
+ lumamax = luma;
+ max = p;
}
- if (luma < lumamin)
- {
- lumamin = luma;
- min = p;
+ if (luma < lumamin) {
+ lumamin = luma;
+ min = p;
}
p = src[x];
lumac = luma = p >> 24;
- if (luma > lumamax)
- {
- lumamax = luma;
- max = p;
+ if (luma > lumamax) {
+ lumamax = luma;
+ max = p;
}
- if (luma < lumamin)
- {
- lumamin = luma;
- min = p;
+ if (luma < lumamin) {
+ lumamin = luma;
+ min = p;
}
- p = src[x+1];
+ p = src[x + 1];
luma = p >> 24;
- if (luma > lumamax)
- {
- lumamax = luma;
- max = p;
+ if (luma > lumamax) {
+ lumamax = luma;
+ max = p;
}
- if (luma < lumamin)
- {
- lumamin = luma;
- min = p;
+ if (luma < lumamin) {
+ lumamin = luma;
+ min = p;
}
-
- p = ((Pixel32 *)((char *)src + xsharpen->srcpitch))[x-1];
+
+ p = ((Pixel32 *) ((char *) src + xsharpen->srcpitch))[x - 1];
luma = p >> 24;
- if (luma > lumamax)
- {
- lumamax = luma;
- max = p;
+ if (luma > lumamax) {
+ lumamax = luma;
+ max = p;
}
- if (luma < lumamin)
- {
- lumamin = luma;
- min = p;
+ if (luma < lumamin) {
+ lumamin = luma;
+ min = p;
}
- p = ((Pixel32 *)((char *)src + xsharpen->srcpitch))[x];
+ p = ((Pixel32 *) ((char *) src + xsharpen->srcpitch))[x];
luma = p >> 24;
- if (luma > lumamax)
- {
- lumamax = luma;
- max = p;
+ if (luma > lumamax) {
+ lumamax = luma;
+ max = p;
}
- if (luma < lumamin)
- {
- lumamin = luma;
- min = p;
+ if (luma < lumamin) {
+ lumamin = luma;
+ min = p;
}
- p = ((Pixel32 *)((char *)src + xsharpen->srcpitch))[x+1];
+ p = ((Pixel32 *) ((char *) src + xsharpen->srcpitch))[x + 1];
luma = p >> 24;
- if (luma > lumamax)
- {
- lumamax = luma;
- max = p;
+ if (luma > lumamax) {
+ lumamax = luma;
+ max = p;
}
- if (luma < lumamin)
- {
- lumamin = luma;
- min = p;
+ if (luma < lumamin) {
+ lumamin = luma;
+ min = p;
}
/* Determine whether the current pixel is closer to the
@@ -369,48 +353,39 @@ gst_xsharpen_chain (GstPad * pad, GstData *_data)
pixel to that closest pixel. If the difference is within
threshold, map the current pixel to the closest pixel;
otherwise pass it through. */
-
+
p = -1;
- if (xsharpen->strength != 0)
- {
- mindiff = lumac - lumamin;
- maxdiff = lumamax - lumac;
- if (mindiff > maxdiff)
- {
- if (maxdiff < xsharpen->threshold)
- {
- p = max;
- }
- }
- else
- {
- if (mindiff < xsharpen->threshold)
- {
- p = min;
- }
- }
+ if (xsharpen->strength != 0) {
+ mindiff = lumac - lumamin;
+ maxdiff = lumamax - lumac;
+ if (mindiff > maxdiff) {
+ if (maxdiff < xsharpen->threshold) {
+ p = max;
+ }
+ } else {
+ if (mindiff < xsharpen->threshold) {
+ p = min;
+ }
+ }
}
- if (p == -1)
- {
- dst[x] = src[x];
- }
- else
- {
- R = (src[x] >> 16) & 0xff;
- G = (src[x] >> 8) & 0xff;
- B = src[x] & 0xff;
- r = (p >> 16) & 0xff;
- g = (p >> 8) & 0xff;
- b = p & 0xff;
- r = (xsharpen->strength * r + xsharpen->strengthinv * R) / 255;
- g = (xsharpen->strength * g + xsharpen->strengthinv * G) / 255;
- b = (xsharpen->strength * b + xsharpen->strengthinv * B) / 255;
- dst[x] = (r << 16) | (g << 8) | b;
+ if (p == -1) {
+ dst[x] = src[x];
+ } else {
+ R = (src[x] >> 16) & 0xff;
+ G = (src[x] >> 8) & 0xff;
+ B = src[x] & 0xff;
+ r = (p >> 16) & 0xff;
+ g = (p >> 8) & 0xff;
+ b = p & 0xff;
+ r = (xsharpen->strength * r + xsharpen->strengthinv * R) / 255;
+ g = (xsharpen->strength * g + xsharpen->strengthinv * G) / 255;
+ b = (xsharpen->strength * b + xsharpen->strengthinv * B) / 255;
+ dst[x] = (r << 16) | (g << 8) | b;
}
}
- src = (Pixel *)((char *)src + xsharpen->srcpitch);
- dst = (Pixel *)((char *)dst + xsharpen->dstpitch);
+ src = (Pixel *) ((char *) src + xsharpen->srcpitch);
+ dst = (Pixel *) ((char *) dst + xsharpen->dstpitch);
}
gst_buffer_unref (buf);
@@ -419,7 +394,8 @@ gst_xsharpen_chain (GstPad * pad, GstData *_data)
}
static void
-gst_xsharpen_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec)
+gst_xsharpen_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
{
GstXsharpen *xsharpen;
@@ -432,7 +408,7 @@ gst_xsharpen_set_property (GObject * object, guint prop_id, const GValue * value
case ARG_STRENGTH:
xsharpen->strength = g_value_get_int (value);
xsharpen->strengthinv = 255 - xsharpen->strength;
- case ARG_THRESHOLD:
+ case ARG_THRESHOLD:
xsharpen->threshold = g_value_get_int (value);
default:
break;
@@ -440,7 +416,8 @@ gst_xsharpen_set_property (GObject * object, guint prop_id, const GValue * value
}
static void
-gst_xsharpen_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec)
+gst_xsharpen_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
{
GstXsharpen *xsharpen;
@@ -451,10 +428,10 @@ gst_xsharpen_get_property (GObject * object, guint prop_id, GValue * value, GPar
switch (prop_id) {
case ARG_STRENGTH:
- g_value_set_int (value, xsharpen->strength );
+ g_value_set_int (value, xsharpen->strength);
break;
case ARG_THRESHOLD:
- g_value_set_int (value, xsharpen->threshold );
+ g_value_set_int (value, xsharpen->threshold);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-01 08:50:42 +0000