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 "gstcacasink.h"
29 /* elementfactory information */
30 static GstElementDetails gst_cacasink_details = {
33 "A colored ASCII art videosink",
34 "Zeeshan Ali <zak147@yahoo.com>"
37 /* cacasink signals and args */
53 static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
56 GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB ";" GST_VIDEO_CAPS_RGBx ";"
57 GST_VIDEO_CAPS_RGB_16 ";" GST_VIDEO_CAPS_RGB_15)
60 static void gst_cacasink_base_init (gpointer g_class);
61 static void gst_cacasink_class_init (GstCACASinkClass * klass);
62 static void gst_cacasink_init (GstCACASink * cacasink);
64 static gboolean gst_cacasink_setcaps (GstBaseSink * pad, GstCaps * caps);
65 static void gst_cacasink_get_times (GstBaseSink * sink, GstBuffer * buffer,
66 GstClockTime * start, GstClockTime * end);
67 static GstFlowReturn gst_cacasink_render (GstBaseSink * basesink,
70 static void gst_cacasink_set_property (GObject * object, guint prop_id,
71 const GValue * value, GParamSpec * pspec);
72 static void gst_cacasink_get_property (GObject * object, guint prop_id,
73 GValue * value, GParamSpec * pspec);
75 static GstStateChangeReturn gst_cacasink_change_state (GstElement * element,
76 GstStateChange transition);
78 static GstElementClass *parent_class = NULL;
81 gst_cacasink_get_type (void)
83 static GType cacasink_type = 0;
86 static const GTypeInfo cacasink_info = {
87 sizeof (GstCACASinkClass),
88 gst_cacasink_base_init,
90 (GClassInitFunc) gst_cacasink_class_init,
95 (GInstanceInitFunc) gst_cacasink_init,
99 g_type_register_static (GST_TYPE_BASE_SINK, "GstCACASink",
102 return cacasink_type;
105 #define GST_TYPE_CACADITHER (gst_cacasink_dither_get_type())
107 gst_cacasink_dither_get_type (void)
109 static GType dither_type = 0;
115 gchar *caca_dithernames[] = {
116 "NONE", "ORDERED2", "ORDERED4", "ORDERED8", "RANDOM", NULL
121 dithers = g_new0 (GEnumValue, n_dithers + 1);
123 for (i = 0; i < n_dithers; i++) {
124 dithers[i].value = i;
125 dithers[i].value_name = g_strdup (caca_dithernames[i]);
126 dithers[i].value_nick = g_strdup (caca_dithernames[i]);
128 dithers[i].value = 0;
129 dithers[i].value_name = NULL;
130 dithers[i].value_nick = NULL;
132 dither_type = g_enum_register_static ("GstCACASinkDithers", dithers);
138 gst_cacasink_base_init (gpointer g_class)
140 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
142 gst_element_class_set_details (element_class, &gst_cacasink_details);
143 gst_element_class_add_pad_template (element_class,
144 gst_static_pad_template_get (&sink_template));
148 gst_cacasink_class_init (GstCACASinkClass * klass)
150 GObjectClass *gobject_class;
151 GstElementClass *gstelement_class;
152 GstBaseSinkClass *gstbasesink_class;
154 gobject_class = (GObjectClass *) klass;
155 gstelement_class = (GstElementClass *) klass;
156 gstbasesink_class = (GstBaseSinkClass *) klass;
158 parent_class = g_type_class_ref (GST_TYPE_BASE_SINK);
160 gobject_class->set_property = gst_cacasink_set_property;
161 gobject_class->get_property = gst_cacasink_get_property;
162 gstelement_class->change_state = gst_cacasink_change_state;
164 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SCREEN_WIDTH, g_param_spec_int ("screen_width", "screen_width", "screen_width", G_MININT, G_MAXINT, 0, G_PARAM_READABLE)); /* CHECKME */
165 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SCREEN_HEIGHT, g_param_spec_int ("screen_height", "screen_height", "screen_height", G_MININT, G_MAXINT, 0, G_PARAM_READABLE)); /* CHECKME */
166 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DITHER,
167 g_param_spec_enum ("dither", "Dither Type", "Set type of Dither",
168 GST_TYPE_CACADITHER, 0, G_PARAM_READWRITE));
169 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANTIALIASING,
170 g_param_spec_boolean ("anti_aliasing", "Anti-Aliasing",
171 "Enables Anti-Aliasing", TRUE, G_PARAM_READWRITE));
173 gstbasesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_cacasink_setcaps);
174 gstbasesink_class->get_times = GST_DEBUG_FUNCPTR (gst_cacasink_get_times);
175 gstbasesink_class->preroll = GST_DEBUG_FUNCPTR (gst_cacasink_render);
176 gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_cacasink_render);
180 gst_cacasink_get_times (GstBaseSink * sink, GstBuffer * buffer,
181 GstClockTime * start, GstClockTime * end)
183 *start = GST_BUFFER_TIMESTAMP (buffer);
184 *end = *start + GST_BUFFER_DURATION (buffer);
188 gst_cacasink_setcaps (GstBaseSink * basesink, GstCaps * caps)
190 GstCACASink *cacasink;
191 GstStructure *structure;
193 cacasink = GST_CACASINK (basesink);
195 structure = gst_caps_get_structure (caps, 0);
196 gst_structure_get_int (structure, "width", &(cacasink->width));
197 gst_structure_get_int (structure, "height", &(cacasink->height));
198 gst_structure_get_int (structure, "bpp", (int *) &cacasink->bpp);
199 gst_structure_get_int (structure, "red_mask", (int *) &cacasink->red_mask);
200 gst_structure_get_int (structure, "green_mask",
201 (int *) &cacasink->green_mask);
202 gst_structure_get_int (structure, "blue_mask", (int *) &cacasink->blue_mask);
204 if (cacasink->bpp == 24) {
205 cacasink->red_mask = GUINT32_FROM_BE (cacasink->red_mask) >> 8;
206 cacasink->green_mask = GUINT32_FROM_BE (cacasink->green_mask) >> 8;
207 cacasink->blue_mask = GUINT32_FROM_BE (cacasink->blue_mask) >> 8;
210 else if (cacasink->bpp == 32) {
211 cacasink->red_mask = GUINT32_FROM_BE (cacasink->red_mask);
212 cacasink->green_mask = GUINT32_FROM_BE (cacasink->green_mask);
213 cacasink->blue_mask = GUINT32_FROM_BE (cacasink->blue_mask);
216 else if (cacasink->bpp == 16 || cacasink->bpp == 15) {
217 cacasink->red_mask = GUINT16_FROM_BE (cacasink->red_mask);
218 cacasink->green_mask = GUINT16_FROM_BE (cacasink->green_mask);
219 cacasink->blue_mask = GUINT16_FROM_BE (cacasink->blue_mask);
222 if (cacasink->bitmap) {
223 caca_free_bitmap (cacasink->bitmap);
226 cacasink->bitmap = caca_create_bitmap (cacasink->bpp,
229 cacasink->width * cacasink->bpp / 8,
230 cacasink->red_mask, cacasink->green_mask, cacasink->blue_mask, 0);
232 if (!cacasink->bitmap) {
240 gst_cacasink_init (GstCACASink * cacasink)
244 pad = GST_BASE_SINK_PAD (cacasink);
245 /* gst_pad_set_fixatecaps_function (pad, gst_cacasink_fixate); */
247 cacasink->screen_width = GST_CACA_DEFAULT_SCREEN_WIDTH;
248 cacasink->screen_height = GST_CACA_DEFAULT_SCREEN_HEIGHT;
249 cacasink->bpp = GST_CACA_DEFAULT_BPP;
250 cacasink->red_mask = GST_CACA_DEFAULT_RED_MASK;
251 cacasink->green_mask = GST_CACA_DEFAULT_GREEN_MASK;
252 cacasink->blue_mask = GST_CACA_DEFAULT_BLUE_MASK;
256 gst_cacasink_render (GstBaseSink * basesink, GstBuffer * buffer)
258 GstCACASink *cacasink = GST_CACASINK (basesink);
260 GST_DEBUG ("render");
263 caca_draw_bitmap (0, 0, cacasink->screen_width - 1,
264 cacasink->screen_height - 1, cacasink->bitmap, GST_BUFFER_DATA (buffer));
271 gst_cacasink_set_property (GObject * object, guint prop_id,
272 const GValue * value, GParamSpec * pspec)
274 GstCACASink *cacasink;
276 g_return_if_fail (GST_IS_CACASINK (object));
278 cacasink = GST_CACASINK (object);
282 cacasink->dither = g_value_get_enum (value);
283 caca_set_dithering (cacasink->dither + CACA_DITHERING_NONE);
286 case ARG_ANTIALIASING:{
287 cacasink->antialiasing = g_value_get_boolean (value);
288 if (cacasink->antialiasing) {
289 caca_set_feature (CACA_ANTIALIASING_MAX);
293 caca_set_feature (CACA_ANTIALIASING_MIN);
303 gst_cacasink_get_property (GObject * object, guint prop_id, GValue * value,
306 GstCACASink *cacasink;
308 cacasink = GST_CACASINK (object);
311 case ARG_SCREEN_WIDTH:{
312 g_value_set_int (value, cacasink->screen_width);
315 case ARG_SCREEN_HEIGHT:{
316 g_value_set_int (value, cacasink->screen_height);
320 g_value_set_enum (value, cacasink->dither);
323 case ARG_ANTIALIASING:{
324 g_value_set_boolean (value, cacasink->antialiasing);
328 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
335 gst_cacasink_open (GstCACASink * cacasink)
337 cacasink->bitmap = NULL;
340 cacasink->screen_width = caca_get_width ();
341 cacasink->screen_height = caca_get_height ();
342 cacasink->antialiasing = TRUE;
343 caca_set_feature (CACA_ANTIALIASING_MAX);
344 cacasink->dither = 0;
345 caca_set_dithering (CACA_DITHERING_NONE);
351 gst_cacasink_close (GstCACASink * cacasink)
353 if (cacasink->bitmap) {
354 caca_free_bitmap (cacasink->bitmap);
355 cacasink->bitmap = NULL;
360 static GstStateChangeReturn
361 gst_cacasink_change_state (GstElement * element, GstStateChange transition)
363 GstStateChangeReturn ret;
366 switch (transition) {
367 case GST_STATE_CHANGE_READY_TO_PAUSED:
368 if (!gst_cacasink_open (GST_CACASINK (element)))
369 return GST_STATE_CHANGE_FAILURE;
375 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
377 switch (transition) {
378 case GST_STATE_CHANGE_PAUSED_TO_READY:
379 gst_cacasink_close (GST_CACASINK (element));
388 plugin_init (GstPlugin * plugin)
390 if (!gst_element_register (plugin, "cacasink", GST_RANK_NONE,
397 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
400 "Colored ASCII Art video sink",
401 plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)