2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) <2003> David Schleef <ds@schleef.org>
4 * Copyright (C) <2009> Sebastian Dröge <sebastian.droege@collabora.co.uk>
6 * EffecTV - Realtime Digital Video Effector
7 * Copyright (C) 2001-2002 FUKUCHI Kentarou
9 * AgingTV - film-aging effect.
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Library General Public
13 * License as published by the Free Software Foundation; either
14 * version 2 of the License, or (at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Library General Public License for more details.
21 * You should have received a copy of the GNU Library General Public
22 * License along with this library; if not, write to the
23 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 * Boston, MA 02111-1307, USA.
28 * SECTION:element-agingtv
30 * AgingTV ages a video stream in realtime, changes the colors and adds
34 * <title>Example launch line</title>
36 * gst-launch -v videotestsrc ! agingtv ! videoconvert ! autovideosink
37 * ]| This pipeline shows the effect of agingtv on a test stream.
49 #include "gsteffectv.h"
51 static const gint dx[8] = { 1, 1, 0, -1, -1, -1, 0, 1 };
52 static const gint dy[8] = { 0, -1, -1, -1, 0, 1, 1, 1 };
63 #define DEFAULT_SCRATCH_LINES 7
64 #define DEFAULT_COLOR_AGING TRUE
65 #define DEFAULT_PITS TRUE
66 #define DEFAULT_DUSTS TRUE
68 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
69 #define CAPS_STR GST_VIDEO_CAPS_MAKE ("{ BGRx, RGBx }")
71 #define CAPS_STR GST_VIDEO_CAPS_MAKE ("{ xRGB, xBGR }")
74 static GstStaticPadTemplate gst_agingtv_src_template =
75 GST_STATIC_PAD_TEMPLATE ("src",
78 GST_STATIC_CAPS (CAPS_STR)
81 static GstStaticPadTemplate gst_agingtv_sink_template =
82 GST_STATIC_PAD_TEMPLATE ("sink",
85 GST_STATIC_CAPS (CAPS_STR)
88 G_DEFINE_TYPE (GstAgingTV, gst_agingtv, GST_TYPE_VIDEO_FILTER);
91 gst_agingtv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
94 GstAgingTV *filter = GST_AGINGTV (btrans);
97 if (!gst_video_info_from_caps (&info, incaps))
107 GST_ERROR_OBJECT (filter, "could not parse caps");
108 return GST_FLOW_ERROR;
113 coloraging (guint32 * src, guint32 * dest, gint video_area, gint * c)
119 c_tmp -= (gint) (fastrand ()) >> 28;
125 for (i = 0; i < video_area; i++) {
127 b = (a & 0xfcfcfc) >> 2;
129 a - b + (c_tmp | (c_tmp << 8) | (c_tmp << 16)) +
130 ((fastrand () >> 8) & 0x101010);
137 scratching (scratch * scratches, gint scratch_lines, guint32 * dest, gint width,
144 for (i = 0; i < scratch_lines; i++) {
145 scratch = &scratches[i];
148 scratch->x = scratch->x + scratch->dx;
150 if (scratch->x < 0 || scratch->x > width * 256) {
154 p = dest + (scratch->x >> 8);
165 y2 = fastrand () % height;
167 for (y = y1; y < y2; y++) {
171 *p = a | (b - (b >> 8));
175 if ((fastrand () & 0xf0000000) == 0) {
176 scratch->life = 2 + (fastrand () >> 27);
177 scratch->x = fastrand () % (width * 256);
178 scratch->dx = ((int) fastrand ()) >> 23;
179 scratch->init = (fastrand () % (height - 1)) + 1;
186 dusts (guint32 * dest, gint width, gint height, gint * dust_interval,
194 if (*dust_interval == 0) {
195 if ((fastrand () & 0xf0000000) == 0) {
196 *dust_interval = fastrand () >> 29;
200 dnum = area_scale * 4 + (fastrand () >> 27);
202 for (i = 0; i < dnum; i++) {
203 x = fastrand () % width;
204 y = fastrand () % height;
205 d = fastrand () >> 29;
206 len = fastrand () % area_scale + 5;
207 for (j = 0; j < len; j++) {
208 dest[y * width + x] = 0x101010;
212 if (y >= height || x >= width)
215 d = (d + fastrand () % 3 - 1) & 7;
218 *dust_interval = *dust_interval - 1;
222 pits (guint32 * dest, gint width, gint height, gint area_scale,
223 gint * pits_interval)
226 gint pnum, size, pnumscale;
229 pnumscale = area_scale * 2;
230 if (*pits_interval) {
231 pnum = pnumscale + (fastrand () % pnumscale);
233 *pits_interval = *pits_interval - 1;
235 pnum = fastrand () % pnumscale;
237 if ((fastrand () & 0xf8000000) == 0) {
238 *pits_interval = (fastrand () >> 28) + 20;
241 for (i = 0; i < pnum; i++) {
242 x = fastrand () % (width - 1);
243 y = fastrand () % (height - 1);
245 size = fastrand () >> 28;
247 for (j = 0; j < size; j++) {
248 x = x + fastrand () % 3 - 1;
249 y = y + fastrand () % 3 - 1;
251 if (y >= height || x >= width)
254 dest[y * width + x] = 0xc0c0c0;
260 gst_agingtv_get_property (GObject * object, guint prop_id,
261 GValue * value, GParamSpec * pspec)
263 GstAgingTV *agingtv = GST_AGINGTV (object);
265 GST_OBJECT_LOCK (agingtv);
267 case PROP_SCRATCH_LINES:
268 g_value_set_uint (value, agingtv->scratch_lines);
270 case PROP_COLOR_AGING:
271 g_value_set_boolean (value, agingtv->color_aging);
274 g_value_set_boolean (value, agingtv->pits);
277 g_value_set_boolean (value, agingtv->dusts);
280 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
282 GST_OBJECT_UNLOCK (agingtv);
286 gst_agingtv_set_property (GObject * object, guint prop_id,
287 const GValue * value, GParamSpec * pspec)
289 GstAgingTV *agingtv = GST_AGINGTV (object);
292 case PROP_SCRATCH_LINES:
293 agingtv->scratch_lines = g_value_get_uint (value);
295 case PROP_COLOR_AGING:
296 agingtv->color_aging = g_value_get_boolean (value);
299 agingtv->pits = g_value_get_boolean (value);
302 agingtv->dusts = g_value_get_boolean (value);
305 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
310 gst_agingtv_start (GstBaseTransform * trans)
312 GstAgingTV *agingtv = GST_AGINGTV (trans);
314 agingtv->coloraging_state = 0x18;
315 agingtv->dust_interval = 0;
316 agingtv->pits_interval = 0;
318 memset (agingtv->scratches, 0, sizeof (agingtv->scratches));
324 gst_agingtv_transform (GstBaseTransform * trans, GstBuffer * in,
327 GstAgingTV *agingtv = GST_AGINGTV (trans);
328 GstVideoFrame in_frame, out_frame;
330 GstClockTime timestamp, stream_time;
331 gint width, height, stride, video_size;
334 timestamp = GST_BUFFER_TIMESTAMP (in);
336 gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
338 GST_DEBUG_OBJECT (agingtv, "sync to %" GST_TIME_FORMAT,
339 GST_TIME_ARGS (timestamp));
341 if (GST_CLOCK_TIME_IS_VALID (stream_time))
342 gst_object_sync_values (GST_OBJECT (agingtv), stream_time);
344 if (!gst_video_frame_map (&in_frame, &agingtv->info, in, GST_MAP_READ))
347 if (!gst_video_frame_map (&out_frame, &agingtv->info, out, GST_MAP_WRITE))
351 width = GST_VIDEO_FRAME_WIDTH (&in_frame);
352 height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
353 stride = GST_VIDEO_FRAME_PLANE_STRIDE (&in_frame, 0);
354 video_size = stride * height;
356 src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
357 dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
359 area_scale = width * height / 64 / 480;
363 if (agingtv->color_aging)
364 coloraging (src, dest, video_size, &agingtv->coloraging_state);
366 memcpy (dest, src, video_size);
368 scratching (agingtv->scratches, agingtv->scratch_lines, dest, width, height);
370 pits (dest, width, height, area_scale, &agingtv->pits_interval);
371 if (area_scale > 1 && agingtv->dusts)
372 dusts (dest, width, height, &agingtv->dust_interval, area_scale);
374 gst_video_frame_unmap (&in_frame);
375 gst_video_frame_unmap (&out_frame);
382 GST_DEBUG_OBJECT (agingtv, "invalid input frame");
383 return GST_FLOW_ERROR;
387 GST_DEBUG_OBJECT (agingtv, "invalid output frame");
388 gst_video_frame_unmap (&in_frame);
389 return GST_FLOW_ERROR;
394 gst_agingtv_class_init (GstAgingTVClass * klass)
396 GObjectClass *gobject_class = (GObjectClass *) klass;
397 GstElementClass *gstelement_class = (GstElementClass *) klass;
398 GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
400 gobject_class->set_property = gst_agingtv_set_property;
401 gobject_class->get_property = gst_agingtv_get_property;
403 g_object_class_install_property (gobject_class, PROP_SCRATCH_LINES,
404 g_param_spec_uint ("scratch-lines", "Scratch Lines",
405 "Number of scratch lines", 0, SCRATCH_MAX, DEFAULT_SCRATCH_LINES,
406 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
408 g_object_class_install_property (gobject_class, PROP_COLOR_AGING,
409 g_param_spec_boolean ("color-aging", "Color Aging",
410 "Color Aging", DEFAULT_COLOR_AGING,
411 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
413 g_object_class_install_property (gobject_class, PROP_PITS,
414 g_param_spec_boolean ("pits", "Pits",
415 "Pits", DEFAULT_PITS,
416 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
418 g_object_class_install_property (gobject_class, PROP_DUSTS,
419 g_param_spec_boolean ("dusts", "Dusts",
420 "Dusts", DEFAULT_DUSTS,
421 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
423 gst_element_class_set_details_simple (gstelement_class, "AgingTV effect",
424 "Filter/Effect/Video",
425 "AgingTV adds age to video input using scratches and dust",
426 "Sam Lantinga <slouken@devolution.com>");
428 gst_element_class_add_pad_template (gstelement_class,
429 gst_static_pad_template_get (&gst_agingtv_sink_template));
430 gst_element_class_add_pad_template (gstelement_class,
431 gst_static_pad_template_get (&gst_agingtv_src_template));
433 trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_agingtv_set_caps);
434 trans_class->transform = GST_DEBUG_FUNCPTR (gst_agingtv_transform);
435 trans_class->start = GST_DEBUG_FUNCPTR (gst_agingtv_start);
439 gst_agingtv_init (GstAgingTV * agingtv)
441 agingtv->scratch_lines = DEFAULT_SCRATCH_LINES;
442 agingtv->color_aging = DEFAULT_COLOR_AGING;
443 agingtv->pits = DEFAULT_PITS;
444 agingtv->dusts = DEFAULT_DUSTS;