2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
27 #include "gstaasink.h"
28 #include <gst/video/video.h>
30 /* elementfactory information */
31 static GstElementDetails gst_aasink_details = {
34 "An ASCII art videosink",
35 "Wim Taymans <wim.taymans@chello.be>"
38 /* aasink signals and args */
40 SIGNAL_FRAME_DISPLAYED,
61 GST_PAD_TEMPLATE_FACTORY (sink_template,
68 GST_VIDEO_YUV_PAD_TEMPLATE_PROPS (
69 GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")))
73 static void gst_aasink_base_init (gpointer g_class);
74 static void gst_aasink_class_init (GstAASinkClass *klass);
75 static void gst_aasink_init (GstAASink *aasink);
77 static void gst_aasink_set_clock (GstElement *element, GstClock *clock);
78 static void gst_aasink_chain (GstPad *pad, GstData *_data);
80 static void gst_aasink_set_property (GObject *object, guint prop_id,
81 const GValue *value, GParamSpec *pspec);
82 static void gst_aasink_get_property (GObject *object, guint prop_id,
83 GValue *value, GParamSpec *pspec);
85 static GstElementStateReturn gst_aasink_change_state (GstElement *element);
87 static GstElementClass *parent_class = NULL;
88 static guint gst_aasink_signals[LAST_SIGNAL] = { 0 };
91 gst_aasink_get_type (void)
93 static GType aasink_type = 0;
96 static const GTypeInfo aasink_info = {
97 sizeof(GstAASinkClass),
100 (GClassInitFunc) gst_aasink_class_init,
105 (GInstanceInitFunc)gst_aasink_init,
107 aasink_type = g_type_register_static(GST_TYPE_ELEMENT, "GstAASink", &aasink_info, 0);
112 #define GST_TYPE_AADRIVERS (gst_aasink_drivers_get_type())
114 gst_aasink_drivers_get_type (void)
116 static GType driver_type = 0;
119 const struct aa_driver *driver;
123 for (n_drivers = 0; aa_drivers[n_drivers]; n_drivers++){
124 /* count number of drivers */
127 drivers = g_new0(GEnumValue, n_drivers + 1);
129 for (i = 0; i < n_drivers; i++){
130 driver = aa_drivers[i];
131 drivers[i].value = i;
132 drivers[i].value_name = g_strdup (driver->shortname);
133 drivers[i].value_nick = g_strdup (driver->name);
135 drivers[i].value = 0;
136 drivers[i].value_name = NULL;
137 drivers[i].value_nick = NULL;
139 driver_type = g_enum_register_static ("GstAASinkDrivers", drivers);
144 #define GST_TYPE_AADITHER (gst_aasink_dither_get_type())
146 gst_aasink_dither_get_type (void)
148 static GType dither_type = 0;
150 GEnumValue *ditherers;
154 for (n_ditherers = 0; aa_dithernames[n_ditherers]; n_ditherers++){
155 /* count number of ditherers */
158 ditherers = g_new0(GEnumValue, n_ditherers + 1);
160 for (i = 0; i < n_ditherers; i++){
161 ditherers[i].value = i;
162 ditherers[i].value_name = g_strdup (aa_dithernames[i]);
163 ditherers[i].value_nick = g_strdup (aa_dithernames[i]);
165 ditherers[i].value = 0;
166 ditherers[i].value_name = NULL;
167 ditherers[i].value_nick = NULL;
169 dither_type = g_enum_register_static ("GstAASinkDitherers", ditherers);
175 gst_aasink_base_init (gpointer g_class)
177 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
179 gst_element_class_add_pad_template (element_class,
180 GST_PAD_TEMPLATE_GET (sink_template));
181 gst_element_class_set_details (element_class, &gst_aasink_details);
185 gst_aasink_class_init (GstAASinkClass *klass)
187 GObjectClass *gobject_class;
188 GstElementClass *gstelement_class;
190 gobject_class = (GObjectClass*)klass;
191 gstelement_class = (GstElementClass*)klass;
193 parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
195 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_WIDTH,
196 g_param_spec_int("width","width","width",
197 G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
198 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HEIGHT,
199 g_param_spec_int("height","height","height",
200 G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
201 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DRIVER,
202 g_param_spec_enum("driver","driver","driver",
203 GST_TYPE_AADRIVERS,0,G_PARAM_READWRITE)); /* CHECKME! */
204 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DITHER,
205 g_param_spec_enum("dither","dither","dither",
206 GST_TYPE_AADITHER,0,G_PARAM_READWRITE)); /* CHECKME! */
207 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BRIGHTNESS,
208 g_param_spec_int("brightness","brightness","brightness",
209 G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
210 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CONTRAST,
211 g_param_spec_int("contrast","contrast","contrast",
212 G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
213 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_GAMMA,
214 g_param_spec_float("gamma","gamma","gamma",
215 0.0,5.0,1.0,G_PARAM_READWRITE)); /* CHECKME */
216 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_INVERSION,
217 g_param_spec_boolean("inversion","inversion","inversion",
218 TRUE,G_PARAM_READWRITE)); /* CHECKME */
219 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_RANDOMVAL,
220 g_param_spec_int("randomval","randomval","randomval",
221 G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
222 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FRAMES_DISPLAYED,
223 g_param_spec_int("frames_displayed","frames_displayed","frames_displayed",
224 G_MININT,G_MAXINT,0,G_PARAM_READABLE)); /* CHECKME */
225 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FRAME_TIME,
226 g_param_spec_int("frame_time","frame_time","frame_time",
227 G_MININT,G_MAXINT,0,G_PARAM_READABLE)); /* CHECKME */
229 gobject_class->set_property = gst_aasink_set_property;
230 gobject_class->get_property = gst_aasink_get_property;
232 gst_aasink_signals[SIGNAL_FRAME_DISPLAYED] =
233 g_signal_new ("frame_displayed", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
234 G_STRUCT_OFFSET (GstAASinkClass, frame_displayed), NULL, NULL,
235 g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
236 gst_aasink_signals[SIGNAL_HAVE_SIZE] =
237 g_signal_new ("have_size", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
238 G_STRUCT_OFFSET (GstAASinkClass, have_size), NULL, NULL,
239 gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2,
240 G_TYPE_UINT, G_TYPE_UINT);
242 gstelement_class->change_state = gst_aasink_change_state;
243 gstelement_class->set_clock = gst_aasink_set_clock;
246 static GstPadLinkReturn
247 gst_aasink_sinkconnect (GstPad *pad, GstCaps *caps)
251 aasink = GST_AASINK (gst_pad_get_parent (pad));
253 if (!GST_CAPS_IS_FIXED (caps))
254 return GST_PAD_LINK_DELAYED;
256 gst_caps_get_int (caps, "width", &aasink->width);
257 gst_caps_get_int (caps, "height", &aasink->height);
259 /* FIXME aasink->format is never set */
261 GST_DEBUG ("aasink: setting %08lx (" GST_FOURCC_FORMAT ")",
262 aasink->format, GST_FOURCC_ARGS(aasink->format));
264 g_signal_emit( G_OBJECT (aasink), gst_aasink_signals[SIGNAL_HAVE_SIZE], 0,
265 aasink->width, aasink->height);
267 return GST_PAD_LINK_OK;
271 gst_aasink_set_clock (GstElement *element, GstClock *clock)
273 GstAASink *aasink = GST_AASINK (element);
275 aasink->clock = clock;
279 gst_aasink_init (GstAASink *aasink)
281 aasink->sinkpad = gst_pad_new_from_template (
282 GST_PAD_TEMPLATE_GET (sink_template), "sink");
283 gst_element_add_pad (GST_ELEMENT (aasink), aasink->sinkpad);
284 gst_pad_set_chain_function (aasink->sinkpad, gst_aasink_chain);
285 gst_pad_set_link_function (aasink->sinkpad, gst_aasink_sinkconnect);
287 memcpy(&aasink->ascii_surf, &aa_defparams, sizeof (struct aa_hardware_params));
288 aasink->ascii_parms.bright = 0;
289 aasink->ascii_parms.contrast = 16;
290 aasink->ascii_parms.gamma = 1.0;
291 aasink->ascii_parms.dither = 0;
292 aasink->ascii_parms.inversion = 0;
293 aasink->ascii_parms.randomval = 0;
294 aasink->aa_driver = 0;
299 aasink->clock = NULL;
301 GST_FLAG_SET(aasink, GST_ELEMENT_THREAD_SUGGESTED);
305 gst_aasink_scale (GstAASink *aasink, gchar *src, gchar *dest,
312 g_return_if_fail ((dw != 0) && (dh != 0));
315 yinc = (sh << 16) / dh;
316 xinc = (sw << 16) / dw;
318 for (y = dh; y; y--) {
319 while (ypos > 0x10000) {
325 guchar *destp = dest;
328 for ( x=dw; x; x-- ) {
329 while (xpos >= 0x10000L) {
343 gst_aasink_chain (GstPad *pad, GstData *_data)
345 GstBuffer *buf = GST_BUFFER (_data);
348 g_return_if_fail (pad != NULL);
349 g_return_if_fail (GST_IS_PAD (pad));
350 g_return_if_fail (buf != NULL);
352 aasink = GST_AASINK (gst_pad_get_parent (pad));
354 gst_aasink_scale (aasink,
355 GST_BUFFER_DATA (buf), /* src */
356 aa_image (aasink->context), /* dest */
357 aasink->width, /* sw */
358 aasink->height, /* sh */
359 aa_imgwidth (aasink->context), /* dw */
360 aa_imgheight (aasink->context)); /* dh */
362 GST_DEBUG ("videosink: clock wait: %" G_GUINT64_FORMAT, GST_BUFFER_TIMESTAMP(buf));
365 GstClockID id = gst_clock_new_single_shot_id (aasink->clock, GST_BUFFER_TIMESTAMP(buf));
366 gst_element_clock_wait (GST_ELEMENT (aasink), id, NULL);
367 gst_clock_id_free (id);
370 aa_render (aasink->context, &aasink->ascii_parms,
371 0, 0, aa_imgwidth (aasink->context), aa_imgheight (aasink->context));
372 aa_flush (aasink->context);
373 aa_getevent (aasink->context, FALSE);
375 g_signal_emit(G_OBJECT(aasink),gst_aasink_signals[SIGNAL_FRAME_DISPLAYED], 0);
377 gst_buffer_unref(buf);
382 gst_aasink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
386 /* it's not null if we got it, but it might not be ours */
387 g_return_if_fail (GST_IS_AASINK (object));
389 aasink = GST_AASINK (object);
393 aasink->ascii_surf.width = g_value_get_int (value);
396 aasink->ascii_surf.height = g_value_get_int (value);
399 aasink->aa_driver = g_value_get_enum (value);
403 aasink->ascii_parms.dither = g_value_get_enum (value);
406 case ARG_BRIGHTNESS: {
407 aasink->ascii_parms.bright = g_value_get_int (value);
411 aasink->ascii_parms.contrast = g_value_get_int (value);
415 aasink->ascii_parms.gamma = g_value_get_float (value);
418 case ARG_INVERSION: {
419 aasink->ascii_parms.inversion = g_value_get_boolean (value);
422 case ARG_RANDOMVAL: {
423 aasink->ascii_parms.randomval = g_value_get_int (value);
432 gst_aasink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
436 /* it's not null if we got it, but it might not be ours */
437 aasink = GST_AASINK(object);
441 g_value_set_int (value, aasink->ascii_surf.width);
445 g_value_set_int (value, aasink->ascii_surf.height);
449 g_value_set_enum (value, aasink->aa_driver);
453 g_value_set_enum (value, aasink->ascii_parms.dither);
456 case ARG_BRIGHTNESS: {
457 g_value_set_int (value, aasink->ascii_parms.bright);
461 g_value_set_int (value, aasink->ascii_parms.contrast);
465 g_value_set_float (value, aasink->ascii_parms.gamma);
468 case ARG_INVERSION: {
469 g_value_set_boolean (value, aasink->ascii_parms.inversion);
472 case ARG_RANDOMVAL: {
473 g_value_set_int (value, aasink->ascii_parms.randomval);
476 case ARG_FRAMES_DISPLAYED: {
477 g_value_set_int (value, aasink->frames_displayed);
480 case ARG_FRAME_TIME: {
481 g_value_set_int (value, aasink->frame_time/1000000);
485 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
492 gst_aasink_open (GstAASink *aasink)
494 g_return_val_if_fail (!GST_FLAG_IS_SET (aasink ,GST_AASINK_OPEN), FALSE);
496 aa_recommendhidisplay(aa_drivers[aasink->aa_driver]->shortname);
498 aasink->context = aa_autoinit (&aasink->ascii_surf);
499 if (aasink->context == NULL) {
500 gst_element_error (GST_ELEMENT (aasink),
501 g_strdup("opening aalib context"));
504 aa_autoinitkbd(aasink->context, 0);
505 aa_resizehandler(aasink->context, (void *)aa_resize);
507 GST_FLAG_SET (aasink, GST_AASINK_OPEN);
513 gst_aasink_close (GstAASink *aasink)
515 g_return_if_fail (GST_FLAG_IS_SET (aasink ,GST_AASINK_OPEN));
517 aa_close (aasink->context);
519 GST_FLAG_UNSET (aasink, GST_AASINK_OPEN);
522 static GstElementStateReturn
523 gst_aasink_change_state (GstElement *element)
525 g_return_val_if_fail (GST_IS_AASINK (element), GST_STATE_FAILURE);
527 if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
528 if (GST_FLAG_IS_SET (element, GST_AASINK_OPEN))
529 gst_aasink_close (GST_AASINK (element));
531 if (!GST_FLAG_IS_SET (element, GST_AASINK_OPEN)) {
532 if (!gst_aasink_open (GST_AASINK (element)))
533 return GST_STATE_FAILURE;
537 if (GST_ELEMENT_CLASS (parent_class)->change_state)
538 return GST_ELEMENT_CLASS (parent_class)->change_state (element);
540 return GST_STATE_SUCCESS;
544 plugin_init (GstPlugin *plugin)
546 if (!gst_element_register (plugin, "aasink", GST_RANK_NONE, GST_TYPE_AASINK))
556 "ASCII Art video sink",