mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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videomedian: copy media to videomedian
Copy the median video filter to videofilters and rename to videomedian.
This commit is contained in:
Wim Taymans
parent
b893197317
commit
9e67891f72
4 changed files with 393 additions and 3 deletions
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@ -1,6 +1,6 @@
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plugin_LTLIBRARIES = libgstvideofilter.la
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noinst_HEADERS = gstvideoflip.h gstvideobalance.h gstgamma.h
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noinst_HEADERS = gstvideoflip.h gstvideobalance.h gstgamma.h gstvideomedian.h
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EXTRA_DIST = gstvideotemplate.c make_filter
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CLEANFILES = gstvideoexample.c
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@ -8,7 +8,8 @@ CLEANFILES = gstvideoexample.c
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libgstvideofilter_la_SOURCES = plugin.c \
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gstvideoflip.c \
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gstvideobalance.c \
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gstgamma.c
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gstgamma.c \
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gstvideomedian.c
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libgstvideofilter_la_CFLAGS = $(GST_CFLAGS) \
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$(GST_BASE_CFLAGS) \
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$(GST_PLUGINS_BASE_CFLAGS)
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318
gst/videofilter/gstvideomedian.c
Normal file
318
gst/videofilter/gstvideomedian.c
Normal file
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@ -0,0 +1,318 @@
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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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#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 "gstvideomedian.h"
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static GstStaticPadTemplate video_median_src_factory =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ I420, YV12 }"))
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);
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static GstStaticPadTemplate video_median_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ I420, YV12 }"))
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);
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/* Median signals and args */
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enum
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{
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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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{
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PROP_0,
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PROP_ACTIVE,
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PROP_FILTERSIZE,
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PROP_LUM_ONLY
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};
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#define gst_video_median_parent_class parent_class
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G_DEFINE_TYPE (GstVideoMedian, gst_video_median, GST_TYPE_VIDEO_FILTER);
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static GstFlowReturn gst_video_median_transform_frame (GstVideoFilter * filter,
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GstVideoFrame * in_frame, GstVideoFrame * out_frame);
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static void gst_video_median_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_video_median_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void
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gst_video_median_class_init (GstVideoMedianClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstVideoFilterClass *vfilter_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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vfilter_class = (GstVideoFilterClass *) klass;
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gobject_class->set_property = gst_video_median_set_property;
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gobject_class->get_property = gst_video_median_get_property;
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/* FIXME: add long property descriptions */
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_ACTIVE,
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g_param_spec_boolean ("active", "active", "active", TRUE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_FILTERSIZE,
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g_param_spec_int ("filtersize", "filtersize", "filtersize", G_MININT,
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G_MAXINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_LUM_ONLY,
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g_param_spec_boolean ("lum-only", "lum-only", "lum-only", TRUE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&video_median_sink_factory));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&video_median_src_factory));
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gst_element_class_set_static_metadata (gstelement_class, "Median effect",
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"Filter/Effect/Video",
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"Apply a median filter to an image",
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"Wim Taymans <wim.taymans@gmail.com>");
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vfilter_class->transform_frame =
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GST_DEBUG_FUNCPTR (gst_video_median_transform_frame);
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}
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void
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gst_video_median_init (GstVideoMedian * median)
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{
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median->filtersize = 5;
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median->lum_only = TRUE;
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median->active = TRUE;
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}
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#define PIX_SORT(a,b) { if ((a)>(b)) PIX_SWAP((a),(b)); }
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#define PIX_SWAP(a,b) { unsigned char temp=(a);(a)=(b);(b)=temp; }
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static void
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median_5 (guint8 * dest, gint dstride, const guint8 * src, gint sstride,
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gint width, gint height)
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{
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unsigned char p[5];
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int i, j, k;
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/* copy the top and bottom rows into the result array */
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for (i = 0; i < width; i++) {
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dest[i] = src[i];
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dest[(height - 1) * dstride + i] = src[(height - 1) * sstride + i];
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}
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/* process the interior pixels */
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for (k = 2; k < height; k++) {
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dest += dstride;
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src += sstride;
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dest[0] = src[0];
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for (j = 2, i = 1; j < width; j++, i++) {
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p[0] = src[i - sstride];
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p[1] = src[i - 1];
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p[2] = src[i];
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p[3] = src[i + 1];
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p[4] = src[i + sstride];
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PIX_SORT (p[0], p[1]);
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PIX_SORT (p[3], p[4]);
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PIX_SORT (p[0], p[3]);
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PIX_SORT (p[1], p[4]);
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PIX_SORT (p[1], p[2]);
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PIX_SORT (p[2], p[3]);
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PIX_SORT (p[1], p[2]);
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dest[i] = p[2];
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}
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dest[i] = src[i];
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}
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}
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static void
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median_9 (guint8 * dest, gint dstride, const guint8 * src, gint sstride,
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gint width, gint height)
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{
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unsigned char p[9];
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int i, j, k;
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/*copy the top and bottom rows into the result array */
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for (i = 0; i < width; i++) {
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dest[i] = src[i];
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dest[(height - 1) * dstride + i] = src[(height - 1) * sstride + i];
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}
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/* process the interior pixels */
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for (k = 2; k < height; k++) {
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dest += dstride;
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src += sstride;
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dest[0] = src[0];
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for (j = 2, i = 1; j < width; j++, i++) {
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p[0] = src[i - sstride - 1];
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p[1] = src[i - sstride];
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p[2] = src[i - sstride + 1];
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p[3] = src[i - 1];
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p[4] = src[i];
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p[5] = src[i + 1];
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p[6] = src[i + sstride - 1];
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p[7] = src[i + sstride];
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p[8] = src[i + sstride + 1];
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PIX_SORT (p[1], p[2]);
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PIX_SORT (p[4], p[5]);
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PIX_SORT (p[7], p[8]);
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PIX_SORT (p[0], p[1]);
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PIX_SORT (p[3], p[4]);
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PIX_SORT (p[6], p[7]);
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PIX_SORT (p[1], p[2]);
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PIX_SORT (p[4], p[5]);
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PIX_SORT (p[7], p[8]);
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PIX_SORT (p[0], p[3]);
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PIX_SORT (p[5], p[8]);
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PIX_SORT (p[4], p[7]);
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PIX_SORT (p[3], p[6]);
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PIX_SORT (p[1], p[4]);
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PIX_SORT (p[2], p[5]);
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PIX_SORT (p[4], p[7]);
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PIX_SORT (p[4], p[2]);
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PIX_SORT (p[6], p[4]);
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PIX_SORT (p[4], p[2]);
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dest[i] = p[4];
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}
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dest[i] = src[i];
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}
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}
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static GstFlowReturn
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gst_video_median_transform_frame (GstVideoFilter * filter,
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GstVideoFrame * in_frame, GstVideoFrame * out_frame)
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{
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GstVideoMedian *median = GST_VIDEO_MEDIAN (filter);
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if (median->filtersize == 5) {
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median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0),
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GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0),
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GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0),
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GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0),
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GST_VIDEO_FRAME_WIDTH (in_frame), GST_VIDEO_FRAME_HEIGHT (in_frame));
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if (median->lum_only) {
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gst_video_frame_copy_plane (out_frame, in_frame, 1);
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gst_video_frame_copy_plane (out_frame, in_frame, 2);
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} else {
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median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1),
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GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1),
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GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1),
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GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1),
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GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
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GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
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median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2),
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GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2),
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GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2),
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GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2),
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GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
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GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
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}
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} else {
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median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0),
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GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0),
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GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0),
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GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0),
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GST_VIDEO_FRAME_WIDTH (in_frame), GST_VIDEO_FRAME_HEIGHT (in_frame));
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if (median->lum_only) {
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gst_video_frame_copy_plane (out_frame, in_frame, 1);
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gst_video_frame_copy_plane (out_frame, in_frame, 2);
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} else {
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median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1),
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GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1),
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GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1),
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GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1),
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GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
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GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
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median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2),
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GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2),
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GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2),
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GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2),
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GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
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GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
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}
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}
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return GST_FLOW_OK;
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}
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static void
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gst_video_median_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstVideoMedian *median;
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gint argvalue;
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median = GST_VIDEO_MEDIAN (object);
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switch (prop_id) {
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case PROP_FILTERSIZE:
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argvalue = g_value_get_int (value);
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if (argvalue != 5 && argvalue != 9) {
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g_warning ("median: invalid filtersize (%d), must be 5 or 9\n",
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argvalue);
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} else {
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median->filtersize = argvalue;
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}
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break;
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case PROP_ACTIVE:
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median->active = g_value_get_boolean (value);
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break;
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case PROP_LUM_ONLY:
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median->lum_only = g_value_get_boolean (value);
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break;
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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_video_median_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstVideoMedian *median;
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median = GST_VIDEO_MEDIAN (object);
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switch (prop_id) {
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case PROP_FILTERSIZE:
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g_value_set_int (value, median->filtersize);
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break;
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case PROP_ACTIVE:
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g_value_set_boolean (value, median->active);
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break;
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case PROP_LUM_ONLY:
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g_value_set_boolean (value, median->lum_only);
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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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68
gst/videofilter/gstvideomedian.h
Normal file
68
gst/videofilter/gstvideomedian.h
Normal file
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@ -0,0 +1,68 @@
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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
|
||||
* 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.
|
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*/
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#ifndef __GST_VIDEO_MEDIAN_H__
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#define __GST_VIDEO_MEDIAN_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/video/gstvideofilter.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEO_MEDIAN \
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(gst_video_median_get_type())
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#define GST_VIDEO_MEDIAN(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_MEDIAN,GstVideoMedian))
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#define GST_VIDEO_MEDIAN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_MEDIAN,GstVideoMedianClass))
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#define GST_IS_VIDEO_MEDIAN(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_MEDIAN))
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#define GST_IS_VIDEO_MEDIAN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_MEDIAN))
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typedef struct _GstVideoMedian GstVideoMedian;
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typedef struct _GstVideoMedianClass GstVideoMedianClass;
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struct _GstVideoMedian {
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GstVideoFilter parent;
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int format;
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int width;
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int height;
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int filtersize;
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gboolean active;
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gboolean lum_only;
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GstPad *sinkpad,*srcpad;
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};
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struct _GstVideoMedianClass {
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GstVideoFilterClass parent_class;
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};
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GType gst_video_median_get_type (void);
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G_END_DECLS
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#endif /* __GST_VIDEO_MEDIAN_H__ */
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@ -26,6 +26,7 @@
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#include "gstgamma.h"
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#include "gstvideoflip.h"
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#include "gstvideobalance.h"
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#include "gstvideomedian.h"
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static gboolean
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plugin_init (GstPlugin * plugin)
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|
|
@ -34,7 +35,9 @@ plugin_init (GstPlugin * plugin)
|
|||
&& gst_element_register (plugin, "videobalance", GST_RANK_NONE,
|
||||
GST_TYPE_VIDEO_BALANCE)
|
||||
&& gst_element_register (plugin, "videoflip", GST_RANK_NONE,
|
||||
GST_TYPE_VIDEO_FLIP));
|
||||
GST_TYPE_VIDEO_FLIP)
|
||||
&& gst_element_register (plugin, "videomedian", GST_RANK_NONE,
|
||||
GST_TYPE_VIDEO_MEDIAN));
|
||||
}
|
||||
|
||||
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
||||
|
|
|
|||
Loading…
Reference in a new issue