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;
111 static GEnumValue dither_types[] = {
112 {CACA_DITHERING_NONE, "No dithering", "none"},
113 {CACA_DITHERING_ORDERED2, "Ordered 2x2 Bayer dithering", "2x2"},
114 {CACA_DITHERING_ORDERED4, "Ordered 4x4 Bayer dithering", "4x4"},
115 {CACA_DITHERING_ORDERED8, "Ordered 8x8 Bayer dithering", "8x8"},
116 {CACA_DITHERING_RANDOM, "Random dithering", "random"},
121 dither_type = g_enum_register_static ("GstCACASinkDithering", dither_types);
127 gst_cacasink_base_init (gpointer g_class)
129 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
131 gst_element_class_set_details (element_class, &gst_cacasink_details);
132 gst_element_class_add_pad_template (element_class,
133 gst_static_pad_template_get (&sink_template));
137 gst_cacasink_class_init (GstCACASinkClass * klass)
139 GObjectClass *gobject_class;
140 GstElementClass *gstelement_class;
141 GstBaseSinkClass *gstbasesink_class;
143 gobject_class = (GObjectClass *) klass;
144 gstelement_class = (GstElementClass *) klass;
145 gstbasesink_class = (GstBaseSinkClass *) klass;
147 parent_class = g_type_class_ref (GST_TYPE_BASE_SINK);
149 gobject_class->set_property = gst_cacasink_set_property;
150 gobject_class->get_property = gst_cacasink_get_property;
151 gstelement_class->change_state = gst_cacasink_change_state;
153 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 */
154 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 */
155 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DITHER,
156 g_param_spec_enum ("dither", "Dither Type", "Set type of Dither",
157 GST_TYPE_CACADITHER, CACA_DITHERING_NONE, G_PARAM_READWRITE));
158 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANTIALIASING,
159 g_param_spec_boolean ("anti-aliasing", "Anti-Aliasing",
160 "Enables Anti-Aliasing", TRUE, G_PARAM_READWRITE));
162 gstbasesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_cacasink_setcaps);
163 gstbasesink_class->get_times = GST_DEBUG_FUNCPTR (gst_cacasink_get_times);
164 gstbasesink_class->preroll = GST_DEBUG_FUNCPTR (gst_cacasink_render);
165 gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_cacasink_render);
169 gst_cacasink_get_times (GstBaseSink * sink, GstBuffer * buffer,
170 GstClockTime * start, GstClockTime * end)
172 *start = GST_BUFFER_TIMESTAMP (buffer);
173 *end = *start + GST_BUFFER_DURATION (buffer);
177 gst_cacasink_setcaps (GstBaseSink * basesink, GstCaps * caps)
179 GstCACASink *cacasink;
180 GstStructure *structure;
182 cacasink = GST_CACASINK (basesink);
184 structure = gst_caps_get_structure (caps, 0);
185 gst_structure_get_int (structure, "width", &(cacasink->width));
186 gst_structure_get_int (structure, "height", &(cacasink->height));
187 gst_structure_get_int (structure, "bpp", (int *) &cacasink->bpp);
188 gst_structure_get_int (structure, "red_mask", (int *) &cacasink->red_mask);
189 gst_structure_get_int (structure, "green_mask",
190 (int *) &cacasink->green_mask);
191 gst_structure_get_int (structure, "blue_mask", (int *) &cacasink->blue_mask);
193 if (cacasink->bpp == 24) {
194 cacasink->red_mask = GUINT32_FROM_BE (cacasink->red_mask) >> 8;
195 cacasink->green_mask = GUINT32_FROM_BE (cacasink->green_mask) >> 8;
196 cacasink->blue_mask = GUINT32_FROM_BE (cacasink->blue_mask) >> 8;
199 else if (cacasink->bpp == 32) {
200 cacasink->red_mask = GUINT32_FROM_BE (cacasink->red_mask);
201 cacasink->green_mask = GUINT32_FROM_BE (cacasink->green_mask);
202 cacasink->blue_mask = GUINT32_FROM_BE (cacasink->blue_mask);
205 else if (cacasink->bpp == 16 || cacasink->bpp == 15) {
206 cacasink->red_mask = GUINT16_FROM_BE (cacasink->red_mask);
207 cacasink->green_mask = GUINT16_FROM_BE (cacasink->green_mask);
208 cacasink->blue_mask = GUINT16_FROM_BE (cacasink->blue_mask);
211 if (cacasink->bitmap) {
212 caca_free_bitmap (cacasink->bitmap);
215 cacasink->bitmap = caca_create_bitmap (cacasink->bpp,
218 cacasink->width * cacasink->bpp / 8,
219 cacasink->red_mask, cacasink->green_mask, cacasink->blue_mask, 0);
221 if (!cacasink->bitmap) {
229 gst_cacasink_init (GstCACASink * cacasink)
233 pad = GST_BASE_SINK_PAD (cacasink);
234 /* gst_pad_set_fixatecaps_function (pad, gst_cacasink_fixate); */
236 cacasink->screen_width = GST_CACA_DEFAULT_SCREEN_WIDTH;
237 cacasink->screen_height = GST_CACA_DEFAULT_SCREEN_HEIGHT;
238 cacasink->bpp = GST_CACA_DEFAULT_BPP;
239 cacasink->red_mask = GST_CACA_DEFAULT_RED_MASK;
240 cacasink->green_mask = GST_CACA_DEFAULT_GREEN_MASK;
241 cacasink->blue_mask = GST_CACA_DEFAULT_BLUE_MASK;
245 gst_cacasink_render (GstBaseSink * basesink, GstBuffer * buffer)
247 GstCACASink *cacasink = GST_CACASINK (basesink);
249 GST_DEBUG ("render");
252 caca_draw_bitmap (0, 0, cacasink->screen_width - 1,
253 cacasink->screen_height - 1, cacasink->bitmap, GST_BUFFER_DATA (buffer));
260 gst_cacasink_set_property (GObject * object, guint prop_id,
261 const GValue * value, GParamSpec * pspec)
263 GstCACASink *cacasink;
265 g_return_if_fail (GST_IS_CACASINK (object));
267 cacasink = GST_CACASINK (object);
271 cacasink->dither = g_value_get_enum (value);
272 caca_set_dithering (cacasink->dither + CACA_DITHERING_NONE);
275 case ARG_ANTIALIASING:{
276 cacasink->antialiasing = g_value_get_boolean (value);
277 if (cacasink->antialiasing) {
278 caca_set_feature (CACA_ANTIALIASING_MAX);
282 caca_set_feature (CACA_ANTIALIASING_MIN);
292 gst_cacasink_get_property (GObject * object, guint prop_id, GValue * value,
295 GstCACASink *cacasink;
297 cacasink = GST_CACASINK (object);
300 case ARG_SCREEN_WIDTH:{
301 g_value_set_int (value, cacasink->screen_width);
304 case ARG_SCREEN_HEIGHT:{
305 g_value_set_int (value, cacasink->screen_height);
309 g_value_set_enum (value, cacasink->dither);
312 case ARG_ANTIALIASING:{
313 g_value_set_boolean (value, cacasink->antialiasing);
317 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
324 gst_cacasink_open (GstCACASink * cacasink)
326 cacasink->bitmap = NULL;
329 cacasink->screen_width = caca_get_width ();
330 cacasink->screen_height = caca_get_height ();
331 cacasink->antialiasing = TRUE;
332 caca_set_feature (CACA_ANTIALIASING_MAX);
333 cacasink->dither = 0;
334 caca_set_dithering (CACA_DITHERING_NONE);
340 gst_cacasink_close (GstCACASink * cacasink)
342 if (cacasink->bitmap) {
343 caca_free_bitmap (cacasink->bitmap);
344 cacasink->bitmap = NULL;
349 static GstStateChangeReturn
350 gst_cacasink_change_state (GstElement * element, GstStateChange transition)
352 GstStateChangeReturn ret;
355 switch (transition) {
356 case GST_STATE_CHANGE_READY_TO_PAUSED:
357 if (!gst_cacasink_open (GST_CACASINK (element)))
358 return GST_STATE_CHANGE_FAILURE;
364 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
366 switch (transition) {
367 case GST_STATE_CHANGE_PAUSED_TO_READY:
368 gst_cacasink_close (GST_CACASINK (element));
377 plugin_init (GstPlugin * plugin)
379 if (!gst_element_register (plugin, "cacasink", GST_RANK_NONE,
386 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
389 "Colored ASCII Art video sink",
390 plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)