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eb1b7236f3
Original commit message from CVS: * ext/flac/gstflactag.c: * gst/alpha/gstalpha.c: * gst/debug/breakmydata.c: * gst/debug/negotiation.c: * gst/debug/testplugin.c: * gst/effectv/gstaging.c: * gst/effectv/gstdice.c: * gst/effectv/gstedge.c: * gst/effectv/gstquark.c: * gst/effectv/gstrev.c: * gst/effectv/gstshagadelic.c: * gst/effectv/gstvertigo.c: * gst/effectv/gstwarp.c: * gst/multipart/multipartdemux.c: * gst/multipart/multipartmux.c: * gst/videobox/gstvideobox.c: * gst/videofilter/gstgamma.c: * gst/videofilter/gstvideotemplate.c: * gst/videomixer/videomixer.c: * sys/sunaudio/gstsunaudiosrc.h: More G_OBJECT macro fixing.
391 lines
9.3 KiB
C
391 lines
9.3 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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*
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* EffecTV - Realtime Digital Video Effector
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* Copyright (C) 2001 FUKUCHI Kentarou
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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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/*
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* This file was (probably) generated from gstvideotemplate.c,
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* gstvideotemplate.c,v 1.11 2004/01/07 08:56:45 ds Exp
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*/
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/* From main.c of warp-1.1:
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*
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* Simple DirectMedia Layer demo
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* Realtime picture 'gooing'
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* by sam lantinga slouken@devolution.com
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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 <gst/video/gstvideofilter.h>
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#include <string.h>
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#include <math.h>
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#include <gst/video/video.h>
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#define GST_TYPE_AGINGTV \
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(gst_agingtv_get_type())
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#define GST_AGINGTV(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AGINGTV,GstAgingTV))
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#define GST_AGINGTV_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AGINGTV,GstAgingTVClass))
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#define GST_IS_AGINGTV(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AGINGTV))
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#define GST_IS_AGINGTV_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AGINGTV))
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#define SCRATCH_MAX 20
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typedef struct _scratch
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{
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gint life;
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gint x;
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gint dx;
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gint init;
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}
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scratch;
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static int dx[8] = { 1, 1, 0, -1, -1, -1, 0, 1 };
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static int dy[8] = { 0, -1, -1, -1, 0, 1, 1, 1 };
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typedef struct _GstAgingTV GstAgingTV;
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typedef struct _GstAgingTVClass GstAgingTVClass;
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struct _GstAgingTV
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{
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GstVideoFilter videofilter;
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gint width, height;
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gint aging_mode;
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scratch scratches[SCRATCH_MAX];
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gint scratch_lines;
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gint dust_interval;
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gint pits_interval;
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};
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struct _GstAgingTVClass
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{
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GstVideoFilterClass parent_class;
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};
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GType gst_agingtv_get_type (void);
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static const GstElementDetails agingtv_details =
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GST_ELEMENT_DETAILS ("AgingTV effect",
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"Filter/Effect/Video",
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"AgingTV adds age to video input using scratches and dust",
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"Sam Lantinga <slouken@devolution.com>");
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static GstStaticPadTemplate gst_agingtv_src_template =
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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_BGRx)
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);
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static GstStaticPadTemplate gst_agingtv_sink_template =
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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_BGRx)
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);
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static GstVideoFilterClass *parent_class = NULL;
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static gboolean
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gst_agingtv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
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GstCaps * outcaps)
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{
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GstAgingTV *filter = GST_AGINGTV (btrans);
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GstStructure *structure;
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gboolean ret = FALSE;
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structure = gst_caps_get_structure (incaps, 0);
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if (gst_structure_get_int (structure, "width", &filter->width) &&
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gst_structure_get_int (structure, "height", &filter->height)) {
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ret = TRUE;
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}
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return ret;
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}
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static gboolean
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gst_agingtv_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
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guint * size)
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{
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GstAgingTV *filter;
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GstStructure *structure;
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gboolean ret = FALSE;
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gint width, height;
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filter = GST_AGINGTV (btrans);
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structure = gst_caps_get_structure (caps, 0);
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if (gst_structure_get_int (structure, "width", &width) &&
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gst_structure_get_int (structure, "height", &height)) {
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*size = width * height * 32 / 8;
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ret = TRUE;
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GST_DEBUG_OBJECT (filter, "our frame size is %d bytes (%dx%d)", *size,
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width, height);
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}
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return ret;
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}
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static unsigned int
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fastrand (void)
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{
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static unsigned int fastrand_val;
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return (fastrand_val = fastrand_val * 1103515245 + 12345);
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}
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static void
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coloraging (guint32 * src, guint32 * dest, gint video_area)
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{
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guint32 a, b;
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gint i;
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for (i = video_area; i; i--) {
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a = *src++;
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b = (a & 0xfcfcfc) >> 2;
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*dest++ = a - b + 0x181818 + ((fastrand () >> 8) & 0x101010);
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}
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}
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static void
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scratching (scratch * scratches, gint scratch_lines, guint32 * dest, gint width,
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gint height)
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{
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gint i, y, y1, y2;
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guint32 *p, a, b;
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scratch *scratch;
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for (i = 0; i < scratch_lines; i++) {
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scratch = &scratches[i];
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if (scratch->life) {
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scratch->x = scratch->x + scratch->dx;
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if (scratch->x < 0 || scratch->x > width * 256) {
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scratch->life = 0;
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break;
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}
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p = dest + (scratch->x >> 8);
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if (scratch->init) {
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y1 = scratch->init;
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scratch->init = 0;
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} else {
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y1 = 0;
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}
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scratch->life--;
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if (scratch->life) {
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y2 = height;
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} else {
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y2 = fastrand () % height;
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}
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for (y = y1; y < y2; y++) {
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a = *p & 0xfefeff;
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a += 0x202020;
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b = a & 0x1010100;
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*p = a | (b - (b >> 8));
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p += width;
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}
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} else {
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if ((fastrand () & 0xf0000000) == 0) {
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scratch->life = 2 + (fastrand () >> 27);
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scratch->x = fastrand () % (width * 256);
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scratch->dx = ((int) fastrand ()) >> 23;
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scratch->init = (fastrand () % (height - 1)) + 1;
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}
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}
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}
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}
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static void
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dusts (guint32 * dest, gint width, gint height, gint dust_interval,
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gint area_scale)
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{
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int i, j;
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int dnum;
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int d, len;
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guint x, y;
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if (dust_interval == 0) {
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if ((fastrand () & 0xf0000000) == 0) {
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dust_interval = fastrand () >> 29;
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}
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return;
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}
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dnum = area_scale * 4 + (fastrand () >> 27);
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for (i = 0; i < dnum; i++) {
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x = fastrand () % width;
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y = fastrand () % height;
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d = fastrand () >> 29;
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len = fastrand () % area_scale + 5;
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for (j = 0; j < len; j++) {
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dest[y * width + x] = 0x101010;
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y += dy[d];
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x += dx[d];
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if (y >= height || x >= width)
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break;
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d = (d + fastrand () % 3 - 1) & 7;
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}
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}
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dust_interval--;
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}
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static void
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pits (guint32 * dest, gint width, gint height, gint area_scale,
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gint pits_interval)
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{
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int i, j;
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int pnum, size, pnumscale;
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guint x, y;
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pnumscale = area_scale * 2;
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if (pits_interval) {
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pnum = pnumscale + (fastrand () % pnumscale);
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pits_interval--;
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} else {
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pnum = fastrand () % pnumscale;
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if ((fastrand () & 0xf8000000) == 0) {
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pits_interval = (fastrand () >> 28) + 20;
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}
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}
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for (i = 0; i < pnum; i++) {
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x = fastrand () % (width - 1);
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y = fastrand () % (height - 1);
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size = fastrand () >> 28;
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for (j = 0; j < size; j++) {
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x = x + fastrand () % 3 - 1;
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y = y + fastrand () % 3 - 1;
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if (y >= height || x >= width)
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break;
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dest[y * width + x] = 0xc0c0c0;
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}
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}
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}
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static GstFlowReturn
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gst_agingtv_transform (GstBaseTransform * trans, GstBuffer * in,
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GstBuffer * out)
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{
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GstAgingTV *agingtv = GST_AGINGTV (trans);
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gint width = agingtv->width;
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gint height = agingtv->height;
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int video_size = width * height;
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guint32 *src = (guint32 *) GST_BUFFER_DATA (in);
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guint32 *dest = (guint32 *) GST_BUFFER_DATA (out);
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gint area_scale = width * height / 64 / 480;
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GstFlowReturn ret = GST_FLOW_OK;
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gst_buffer_stamp (out, in);
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if (area_scale <= 0)
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area_scale = 1;
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coloraging (src, dest, video_size);
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scratching (agingtv->scratches, agingtv->scratch_lines, dest, width, height);
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pits (dest, width, height, area_scale, agingtv->pits_interval);
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if (area_scale > 1)
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dusts (dest, width, height, agingtv->dust_interval, area_scale);
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return ret;
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}
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static void
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gst_agingtv_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_set_details (element_class, &agingtv_details);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_agingtv_sink_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_agingtv_src_template));
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}
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static void
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gst_agingtv_class_init (gpointer klass, gpointer class_data)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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GstBaseTransformClass *trans_class;
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gobject_class = (GObjectClass *) klass;
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element_class = (GstElementClass *) klass;
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trans_class = (GstBaseTransformClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_agingtv_set_caps);
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trans_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_agingtv_get_unit_size);
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trans_class->transform = GST_DEBUG_FUNCPTR (gst_agingtv_transform);
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}
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static void
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gst_agingtv_init (GTypeInstance * instance, gpointer g_class)
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{
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}
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GType
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gst_agingtv_get_type (void)
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{
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static GType agingtv_type = 0;
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if (!agingtv_type) {
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static const GTypeInfo agingtv_info = {
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sizeof (GstAgingTVClass),
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gst_agingtv_base_init,
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NULL,
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gst_agingtv_class_init,
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NULL,
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NULL,
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sizeof (GstAgingTV),
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0,
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gst_agingtv_init,
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};
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agingtv_type = g_type_register_static (GST_TYPE_VIDEO_FILTER,
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"GstAgingTV", &agingtv_info, 0);
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}
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return agingtv_type;
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}
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