static GstStaticPadTemplate median_src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420"))
);
static GstStaticPadTemplate median_sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420"))
);
enum
{
- ARG_0,
- ARG_ACTIVE,
- ARG_FILTERSIZE,
- ARG_LUM_ONLY
+ PROP_0,
+ PROP_ACTIVE,
+ PROP_FILTERSIZE,
+ PROP_LUM_ONLY
};
-static GType gst_median_get_type (void);
-static void gst_median_class_init (GstMedianClass * klass);
-static void gst_median_base_init (GstMedianClass * klass);
-static void gst_median_init (GstMedian * median);
+#define gst_median_parent_class parent_class
+G_DEFINE_TYPE (GstMedian, gst_median, GST_TYPE_VIDEO_FILTER);
-static void median_5 (unsigned char *src, unsigned char *dest, int height,
- int width);
+static void median_5 (guint8 * src, gint sstride, const guint8 * dest,
+ gint dstride, gint width, gint height);
+#if 0
static void median_9 (unsigned char *src, unsigned char *dest, int height,
int width);
-static void gst_median_chain (GstPad * pad, GstData * _data);
+#endif
+
+static GstFlowReturn gst_median_transform_frame (GstVideoFilter * filter,
+ GstVideoFrame * in_frame, GstVideoFrame * out_frame);
static void gst_median_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_median_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
-static GstElementClass *parent_class = NULL;
-
-/*static guint gst_median_signals[LAST_SIGNAL] = { 0 }; */
-
-GType
-gst_median_get_type (void)
-{
- static GType median_type = 0;
-
- if (!median_type) {
- static const GTypeInfo median_info = {
- sizeof (GstMedianClass),
- (GBaseInitFunc) gst_median_base_init,
- NULL,
- (GClassInitFunc) gst_median_class_init,
- NULL,
- NULL,
- sizeof (GstMedian),
- 0,
- (GInstanceInitFunc) gst_median_init,
- };
-
- median_type =
- g_type_register_static (GST_TYPE_ELEMENT, "GstMedian", &median_info, 0);
- }
- return median_type;
-}
-
-static void
-gst_median_base_init (GstMedianClass * klass)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&median_sink_factory));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&median_src_factory));
- gst_element_class_set_static_metadata (element_class, "Median effect",
- "Filter/Effect/Video",
- "Apply a median filter to an image",
- "Wim Taymans <wim.taymans@chello.be>");
-}
-
static void
gst_median_class_init (GstMedianClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
+ GstVideoFilterClass *vfilter_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
+ vfilter_class = (GstVideoFilterClass *) klass;
- parent_class = g_type_class_peek_parent (klass);
+ gobject_class->set_property = gst_median_set_property;
+ gobject_class->get_property = gst_median_get_property;
/* FIXME: add long property descriptions */
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ACTIVE,
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_ACTIVE,
g_param_spec_boolean ("active", "active", "active", TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FILTERSIZE,
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_FILTERSIZE,
g_param_spec_int ("filtersize", "filtersize", "filtersize", G_MININT,
G_MAXINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LUM_ONLY,
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_LUM_ONLY,
g_param_spec_boolean ("lum-only", "lum-only", "lum-only", TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
- gobject_class->set_property = gst_median_set_property;
- gobject_class->get_property = gst_median_get_property;
-}
-
-static gboolean
-gst_median_link (GstPad * pad, const GstCaps * caps)
-{
- GstMedian *filter = GST_MEDIAN (gst_pad_get_parent (pad));
- GstPad *otherpad = (pad == filter->srcpad) ? filter->sinkpad : filter->srcpad;
- GstStructure *structure = gst_caps_get_structure (caps, 0);
- gint w, h;
- GstPadLinkReturn ret;
-
- gst_structure_get_int (structure, "width", &w);
- gst_structure_get_int (structure, "height", &h);
-
- ret = gst_pad_try_set_caps (otherpad, caps);
- if (GST_PAD_LINK_SUCCESSFUL (ret)) {
- filter->width = w;
- filter->height = h;
- }
-
- gst_object_unref (filter);
+ gst_element_class_add_pad_template (gstelement_class,
+ gst_static_pad_template_get (&median_sink_factory));
+ gst_element_class_add_pad_template (gstelement_class,
+ gst_static_pad_template_get (&median_src_factory));
+ gst_element_class_set_static_metadata (gstelement_class, "Median effect",
+ "Filter/Effect/Video",
+ "Apply a median filter to an image",
+ "Wim Taymans <wim.taymans@gmail.com>");
- return ret;
+ vfilter_class->transform_frame =
+ GST_DEBUG_FUNCPTR (gst_median_transform_frame);
}
void
gst_median_init (GstMedian * median)
{
- median->sinkpad =
- gst_pad_new_from_static_template (&media_sink_factory, "sink");
- gst_pad_set_getcaps_function (median->sinkpad, gst_pad_proxy_getcaps);
- gst_pad_set_link_function (median->sinkpad, gst_median_link);
- gst_pad_set_chain_function (median->sinkpad, gst_median_chain);
- gst_element_add_pad (GST_ELEMENT (median), median->sinkpad);
-
- median->srcpad = gst_pad_new_from_static_template (&media_src_factory, "src");
- gst_pad_set_getcaps_function (median->srcpad, gst_pad_proxy_getcaps);
- gst_pad_set_link_function (median->sinkpad, gst_median_link);
- gst_element_add_pad (GST_ELEMENT (median), median->srcpad);
-
median->filtersize = 5;
median->lum_only = TRUE;
median->active = TRUE;
#define PIX_SWAP(a,b) { unsigned char temp=(a);(a)=(b);(b)=temp; }
static void
-median_5 (unsigned char *src, unsigned char *dest, int width, int height)
+median_5 (guint8 * dest, gint dstride, const guint8 * src, gint sstride,
+ gint width, gint height)
{
- int nLastRow;
- int nLastCol;
- unsigned char p[9];
+ unsigned char p[5];
int i, j, k;
- nLastCol = width - 1;
- nLastRow = height - 1;
-
- /*copy the top and bottom rows into the result array */
+ /* copy the top and bottom rows into the result array */
for (i = 0; i < width; i++) {
dest[i] = src[i];
- dest[nLastRow * width + i] = src[nLastRow * width + i];
+ dest[(height - 1) * dstride + i] = src[(height - 1) * sstride + i];
}
- dest[i] = src[i];
-
- nLastCol--;
- nLastRow--;
/* process the interior pixels */
- i = width + 1;
- for (k = 0; k < nLastRow; k++) {
- for (j = 0; j < nLastCol; j++, i++) {
- p[0] = src[i - width];
+ for (k = 2; k < height; k++) {
+ dest += dstride;
+ src += sstride;
+
+ dest[0] = src[0];
+ for (j = 2, i = 1; j < width; j++, i++) {
+ p[0] = src[i - sstride];
p[1] = src[i - 1];
p[2] = src[i];
p[3] = src[i + 1];
- p[4] = src[i + width];
+ p[4] = src[i + sstride];
PIX_SORT (p[0], p[1]);
PIX_SORT (p[3], p[4]);
PIX_SORT (p[0], p[3]);
dest[i] = p[2];
}
dest[i] = src[i];
- i++;
- dest[i] = src[i];
- i++;
}
- dest[i] = src[i];
- i++;
}
static void
-median_9 (unsigned char *src, unsigned char *dest, int width, int height)
+median_9 (guint8 * dest, gint dstride, const guint8 * src, gint sstride,
+ gint width, gint height)
{
- int nLastRow;
- int nLastCol;
unsigned char p[9];
int i, j, k;
- nLastCol = width - 1;
- nLastRow = height - 1;
-
/*copy the top and bottom rows into the result array */
for (i = 0; i < width; i++) {
dest[i] = src[i];
- dest[nLastRow * width + i] = src[nLastRow * width + i];
+ dest[(height - 1) * dstride + i] = src[(height - 1) * sstride + i];
}
- dest[i] = src[i];
-
- nLastCol--;
- nLastRow--;
-
/* process the interior pixels */
- i = width + 1;
- for (k = 0; k < nLastRow; k++) {
- for (j = 0; j < nLastCol; j++, i++) {
- p[0] = src[i - width - 1];
- p[1] = src[i - width];
- p[2] = src[i - width + 1];
+ for (k = 2; k < height; k++) {
+ dest += dstride;
+ src += sstride;
+
+ dest[0] = src[0];
+ for (j = 2, i = 1; j < width; j++, i++) {
+ p[0] = src[i - sstride - 1];
+ p[1] = src[i - sstride];
+ p[2] = src[i - sstride + 1];
p[3] = src[i - 1];
p[4] = src[i];
p[5] = src[i + 1];
- p[6] = src[i + width - 1];
- p[7] = src[i + width];
- p[8] = src[i + width + 1];
+ p[6] = src[i + sstride - 1];
+ p[7] = src[i + sstride];
+ p[8] = src[i + sstride + 1];
PIX_SORT (p[1], p[2]);
PIX_SORT (p[4], p[5]);
PIX_SORT (p[7], p[8]);
dest[i] = p[4];
}
dest[i] = src[i];
- i++;
- dest[i] = src[i];
- i++;
}
- dest[i] = src[i];
- i++;
}
-static void
-gst_median_chain (GstPad * pad, GstData * _data)
+static GstFlowReturn
+gst_median_transform_frame (GstVideoFilter * filter, GstVideoFrame * in_frame,
+ GstVideoFrame * out_frame)
{
- GstBuffer *buf = GST_BUFFER (_data);
- GstMedian *median;
- guchar *data;
- gulong size;
- GstBuffer *outbuf;
-
-/* GstMeta *meta; */
- int lumsize, chromsize;
-
- g_return_if_fail (pad != NULL);
- g_return_if_fail (GST_IS_PAD (pad));
- g_return_if_fail (buf != NULL);
-
- median = GST_MEDIAN (GST_OBJECT_PARENT (pad));
-
- if (!median->active) {
- gst_pad_push (median->srcpad, GST_DATA (buf));
- return;
- }
-
- data = GST_BUFFER_DATA (buf);
- size = GST_BUFFER_SIZE (buf);
-
- GST_DEBUG ("median: have buffer of %d", GST_BUFFER_SIZE (buf));
-
- outbuf = gst_buffer_new ();
- GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (buf));
- GST_BUFFER_SIZE (outbuf) = GST_BUFFER_SIZE (buf);
-
- lumsize = median->width * median->height;
- chromsize = lumsize / 4;
+ GstMedian *median = GST_MEDIAN (filter);
if (median->filtersize == 5) {
- median_5 (data, GST_BUFFER_DATA (outbuf), median->width, median->height);
- if (!median->lum_only) {
- median_5 (data + lumsize, GST_BUFFER_DATA (outbuf) + lumsize,
- median->width / 2, median->height / 2);
- median_5 (data + lumsize + chromsize,
- GST_BUFFER_DATA (outbuf) + lumsize + chromsize, median->width / 2,
- median->height / 2);
+ median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0),
+ GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0),
+ GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0),
+ GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0),
+ GST_VIDEO_FRAME_WIDTH (in_frame), GST_VIDEO_FRAME_HEIGHT (in_frame));
+
+ if (median->lum_only) {
+ gst_video_frame_copy_plane (out_frame, in_frame, 1);
+ gst_video_frame_copy_plane (out_frame, in_frame, 2);
} else {
- memcpy (GST_BUFFER_DATA (outbuf) + lumsize, data + lumsize,
- chromsize * 2);
+ median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1),
+ GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1),
+ GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1),
+ GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1),
+ GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
+ GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
+ median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2),
+ GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2),
+ GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2),
+ GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2),
+ GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
+ GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
}
} else {
- median_9 (data, GST_BUFFER_DATA (outbuf), median->width, median->height);
- if (!median->lum_only) {
- median_9 (data + lumsize, GST_BUFFER_DATA (outbuf) + lumsize,
- median->width / 2, median->height / 2);
- median_9 (data + lumsize + chromsize,
- GST_BUFFER_DATA (outbuf) + lumsize + chromsize, median->width / 2,
- median->height / 2);
+ median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0),
+ GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0),
+ GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0),
+ GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0),
+ GST_VIDEO_FRAME_WIDTH (in_frame), GST_VIDEO_FRAME_HEIGHT (in_frame));
+
+ if (median->lum_only) {
+ gst_video_frame_copy_plane (out_frame, in_frame, 1);
+ gst_video_frame_copy_plane (out_frame, in_frame, 2);
} else {
- memcpy (GST_BUFFER_DATA (outbuf) + lumsize, data + lumsize,
- chromsize * 2);
+ median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1),
+ GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1),
+ GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1),
+ GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1),
+ GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
+ GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
+ median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2),
+ GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2),
+ GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2),
+ GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2),
+ GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
+ GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
}
}
- GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
-
- gst_buffer_unref (buf);
- gst_pad_push (median->srcpad, GST_DATA (outbuf));
+ return GST_FLOW_OK;
}
static void
median = GST_MEDIAN (object);
switch (prop_id) {
- case ARG_FILTERSIZE:
+ case PROP_FILTERSIZE:
argvalue = g_value_get_int (value);
if (argvalue != 5 && argvalue != 9) {
g_warning ("median: invalid filtersize (%d), must be 5 or 9\n",
median->filtersize = argvalue;
}
break;
- case ARG_ACTIVE:
+ case PROP_ACTIVE:
median->active = g_value_get_boolean (value);
break;
- case ARG_LUM_ONLY:
+ case PROP_LUM_ONLY:
median->lum_only = g_value_get_boolean (value);
break;
default:
median = GST_MEDIAN (object);
switch (prop_id) {
- case ARG_FILTERSIZE:
+ case PROP_FILTERSIZE:
g_value_set_int (value, median->filtersize);
break;
- case ARG_ACTIVE:
+ case PROP_ACTIVE:
g_value_set_boolean (value, median->active);
break;
- case ARG_LUM_ONLY:
+ case PROP_LUM_ONLY:
g_value_set_boolean (value, median->lum_only);
break;
default:
projects / platform / upstream / gstreamer.git / commitdiff