108 |
108 |
109 #define GST_CAT_DEFAULT GST_CAT_PADS |
109 #define GST_CAT_DEFAULT GST_CAT_PADS |
110 |
110 |
111 enum |
111 enum |
112 { |
112 { |
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113 PROP_NAME_TEMPLATE = 1, |
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114 PROP_DIRECTION, |
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115 PROP_PRESENCE, |
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116 PROP_CAPS |
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117 }; |
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118 |
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119 enum |
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120 { |
113 TEMPL_PAD_CREATED, |
121 TEMPL_PAD_CREATED, |
114 /* FILL ME */ |
122 /* FILL ME */ |
115 LAST_SIGNAL |
123 LAST_SIGNAL |
116 }; |
124 }; |
117 |
125 |
118 static GstObject *parent_class = NULL; |
126 static GstObject *parent_class = NULL; |
119 static guint gst_pad_template_signals[LAST_SIGNAL] = { 0 }; |
127 static guint gst_pad_template_signals[LAST_SIGNAL] = { 0 }; |
120 |
128 |
121 static void gst_pad_template_class_init (GstPadTemplateClass * klass); |
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122 static void gst_pad_template_init (GstPadTemplate * templ, |
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123 GstPadTemplateClass * klass); |
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124 static void gst_pad_template_dispose (GObject * object); |
129 static void gst_pad_template_dispose (GObject * object); |
125 #ifdef __SYMBIAN32__ |
130 static void gst_pad_template_set_property (GObject * object, guint prop_id, |
126 EXPORT_C |
131 const GValue * value, GParamSpec * pspec); |
127 #endif |
132 static void gst_pad_template_get_property (GObject * object, guint prop_id, |
128 |
133 GValue * value, GParamSpec * pspec); |
129 |
134 |
130 GType |
135 G_DEFINE_TYPE (GstPadTemplate, gst_pad_template, GST_TYPE_OBJECT); |
131 gst_pad_template_get_type (void) |
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132 { |
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133 static GType padtemplate_type = 0; |
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134 |
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135 if (G_UNLIKELY (padtemplate_type == 0)) { |
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136 static const GTypeInfo padtemplate_info = { |
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137 sizeof (GstPadTemplateClass), NULL, NULL, |
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138 (GClassInitFunc) gst_pad_template_class_init, NULL, NULL, |
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139 sizeof (GstPadTemplate), |
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140 0, |
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141 (GInstanceInitFunc) gst_pad_template_init, NULL |
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142 }; |
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143 |
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144 padtemplate_type = |
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145 g_type_register_static (GST_TYPE_OBJECT, "GstPadTemplate", |
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146 &padtemplate_info, 0); |
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147 } |
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148 return padtemplate_type; |
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149 } |
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150 |
136 |
151 static void |
137 static void |
152 gst_pad_template_class_init (GstPadTemplateClass * klass) |
138 gst_pad_template_class_init (GstPadTemplateClass * klass) |
153 { |
139 { |
154 GObjectClass *gobject_class; |
140 GObjectClass *gobject_class; |
171 G_STRUCT_OFFSET (GstPadTemplateClass, pad_created), |
157 G_STRUCT_OFFSET (GstPadTemplateClass, pad_created), |
172 NULL, NULL, gst_marshal_VOID__OBJECT, G_TYPE_NONE, 1, GST_TYPE_PAD); |
158 NULL, NULL, gst_marshal_VOID__OBJECT, G_TYPE_NONE, 1, GST_TYPE_PAD); |
173 |
159 |
174 gobject_class->dispose = gst_pad_template_dispose; |
160 gobject_class->dispose = gst_pad_template_dispose; |
175 |
161 |
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162 gobject_class->get_property = gst_pad_template_get_property; |
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163 gobject_class->set_property = gst_pad_template_set_property; |
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164 |
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165 /** |
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166 * GstPadTemplate:name-template |
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167 * |
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168 * The name template of the pad template. |
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169 * |
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170 * Since: 0.10.21 |
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171 */ |
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172 g_object_class_install_property (gobject_class, PROP_NAME_TEMPLATE, |
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173 g_param_spec_string ("name-template", "Name template", |
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174 "The name template of the pad template", NULL, |
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175 G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS)); |
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176 |
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177 /** |
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178 * GstPadTemplate:direction |
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179 * |
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180 * The direction of the pad described by the pad template. |
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181 * |
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182 * Since: 0.10.21 |
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183 */ |
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184 g_object_class_install_property (gobject_class, PROP_DIRECTION, |
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185 g_param_spec_enum ("direction", "Direction", |
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186 "The direction of the pad described by the pad template", |
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187 GST_TYPE_PAD_DIRECTION, GST_PAD_UNKNOWN, |
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188 G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS)); |
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189 |
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190 /** |
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191 * GstPadTemplate:presence |
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192 * |
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193 * When the pad described by the pad template will become available. |
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194 * |
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195 * Since: 0.10.21 |
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196 */ |
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197 g_object_class_install_property (gobject_class, PROP_PRESENCE, |
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198 g_param_spec_enum ("presence", "Presence", |
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199 "When the pad described by the pad template will become available", |
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200 GST_TYPE_PAD_PRESENCE, GST_PAD_ALWAYS, |
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201 G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS)); |
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202 |
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203 /** |
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204 * GstPadTemplate:caps |
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205 * |
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206 * The capabilities of the pad described by the pad template. |
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207 * |
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208 * Since: 0.10.21 |
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209 */ |
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210 g_object_class_install_property (gobject_class, PROP_CAPS, |
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211 g_param_spec_boxed ("caps", "Caps", |
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212 "The capabilities of the pad described by the pad template", |
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213 GST_TYPE_CAPS, |
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214 G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS)); |
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215 |
176 gstobject_class->path_string_separator = "*"; |
216 gstobject_class->path_string_separator = "*"; |
177 } |
217 } |
178 |
218 |
179 static void |
219 static void |
180 gst_pad_template_init (GstPadTemplate * templ, GstPadTemplateClass * klass) |
220 gst_pad_template_init (GstPadTemplate * templ) |
181 { |
221 { |
182 /* FIXME 0.11: Does anybody remember why this is here? If not, let's |
222 /* FIXME 0.11: Does anybody remember why this is here? If not, let's |
183 * change it for 0.11 and let gst_element_class_add_pad_template() for |
223 * change it for 0.11 and let gst_element_class_add_pad_template() for |
184 * example ref/sink the pad templates. |
224 * example ref/sink the pad templates. |
185 */ |
225 */ |
232 if ((str = strchr (name, '%')) && strchr (str + 1, '%')) { |
271 if ((str = strchr (name, '%')) && strchr (str + 1, '%')) { |
233 g_warning ("invalid name template %s: only one conversion specification" |
272 g_warning ("invalid name template %s: only one conversion specification" |
234 " allowed in GST_PAD_REQUEST padtemplate", name); |
273 " allowed in GST_PAD_REQUEST padtemplate", name); |
235 return FALSE; |
274 return FALSE; |
236 } |
275 } |
237 if (str && (*(str + 1) != 's' && *(str + 1) != 'd')) { |
276 if (str && (*(str + 1) != 's' && *(str + 1) != 'd' && *(str + 1) != 'u')) { |
238 g_warning ("invalid name template %s: conversion specification must be of" |
277 g_warning ("invalid name template %s: conversion specification must be of" |
239 " type '%%d' or '%%s' for GST_PAD_REQUEST padtemplate", name); |
278 " type '%%d', '%%u' or '%%s' for GST_PAD_REQUEST padtemplate", name); |
240 return FALSE; |
279 return FALSE; |
241 } |
280 } |
242 if (str && (*(str + 2) != '\0')) { |
281 if (str && (*(str + 2) != '\0')) { |
243 g_warning ("invalid name template %s: conversion specification must" |
282 g_warning ("invalid name template %s: conversion specification must" |
244 " appear at the end of the GST_PAD_REQUEST padtemplate name", name); |
283 " appear at the end of the GST_PAD_REQUEST padtemplate name", name); |
279 |
318 |
280 GstPadTemplate * |
319 GstPadTemplate * |
281 gst_static_pad_template_get (GstStaticPadTemplate * pad_template) |
320 gst_static_pad_template_get (GstStaticPadTemplate * pad_template) |
282 { |
321 { |
283 GstPadTemplate *new; |
322 GstPadTemplate *new; |
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323 GstCaps *caps; |
284 |
324 |
285 if (!name_is_valid (pad_template->name_template, pad_template->presence)) |
325 if (!name_is_valid (pad_template->name_template, pad_template->presence)) |
286 return NULL; |
326 return NULL; |
287 |
327 |
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328 caps = gst_static_caps_get (&pad_template->static_caps); |
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329 |
288 new = g_object_new (gst_pad_template_get_type (), |
330 new = g_object_new (gst_pad_template_get_type (), |
289 "name", pad_template->name_template, NULL); |
331 "name", pad_template->name_template, |
290 |
332 "name-template", pad_template->name_template, |
291 GST_PAD_TEMPLATE_NAME_TEMPLATE (new) = g_strdup (pad_template->name_template); |
333 "direction", pad_template->direction, |
292 GST_PAD_TEMPLATE_DIRECTION (new) = pad_template->direction; |
334 "presence", pad_template->presence, "caps", caps, NULL); |
293 GST_PAD_TEMPLATE_PRESENCE (new) = pad_template->presence; |
335 |
294 |
336 gst_caps_unref (caps); |
295 GST_PAD_TEMPLATE_CAPS (new) = |
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296 gst_caps_make_writable (gst_static_caps_get (&pad_template->static_caps)); |
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297 |
337 |
298 return new; |
338 return new; |
299 } |
339 } |
300 |
340 |
301 /** |
341 /** |
331 gst_caps_unref (caps); |
371 gst_caps_unref (caps); |
332 return NULL; |
372 return NULL; |
333 } |
373 } |
334 |
374 |
335 new = g_object_new (gst_pad_template_get_type (), |
375 new = g_object_new (gst_pad_template_get_type (), |
336 "name", name_template, NULL); |
376 "name", name_template, "name-template", name_template, |
337 |
377 "direction", direction, "presence", presence, "caps", caps, NULL); |
338 GST_PAD_TEMPLATE_NAME_TEMPLATE (new) = g_strdup (name_template); |
378 |
339 GST_PAD_TEMPLATE_DIRECTION (new) = direction; |
379 if (caps) |
340 GST_PAD_TEMPLATE_PRESENCE (new) = presence; |
380 gst_caps_unref (caps); |
341 GST_PAD_TEMPLATE_CAPS (new) = caps; |
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342 |
381 |
343 return new; |
382 return new; |
344 } |
383 } |
345 |
384 |
346 /** |
385 /** |
347 * gst_static_pad_template_get_caps: |
386 * gst_static_pad_template_get_caps: |
348 * @templ: a #GstStaticPadTemplate to get capabilities of. |
387 * @templ: a #GstStaticPadTemplate to get capabilities of. |
349 * |
388 * |
350 * Gets the capabilities of the static pad template. |
389 * Gets the capabilities of the static pad template. |
351 * |
390 * |
352 * Returns: the #GstCaps of the static pad template. If you need to keep a |
391 * Returns: the #GstCaps of the static pad template. |
353 * reference to the caps, take a ref (see gst_caps_ref ()). |
392 * Unref after usage. Since the core holds an additional |
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393 * ref to the returned caps, use gst_caps_make_writable() |
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394 * on the returned caps to modify it. |
354 */ |
395 */ |
355 #ifdef __SYMBIAN32__ |
396 #ifdef __SYMBIAN32__ |
356 EXPORT_C |
397 EXPORT_C |
357 #endif |
398 #endif |
358 |
399 |
400 gst_pad_template_pad_created (GstPadTemplate * templ, GstPad * pad) |
441 gst_pad_template_pad_created (GstPadTemplate * templ, GstPad * pad) |
401 { |
442 { |
402 g_signal_emit (G_OBJECT (templ), |
443 g_signal_emit (G_OBJECT (templ), |
403 gst_pad_template_signals[TEMPL_PAD_CREATED], 0, pad); |
444 gst_pad_template_signals[TEMPL_PAD_CREATED], 0, pad); |
404 } |
445 } |
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446 |
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447 static void |
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448 gst_pad_template_set_property (GObject * object, guint prop_id, |
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449 const GValue * value, GParamSpec * pspec) |
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450 { |
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451 /* these properties are all construct-only */ |
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452 switch (prop_id) { |
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453 case PROP_NAME_TEMPLATE: |
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454 GST_PAD_TEMPLATE_NAME_TEMPLATE (object) = g_value_dup_string (value); |
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455 break; |
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456 case PROP_DIRECTION: |
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457 GST_PAD_TEMPLATE_DIRECTION (object) = g_value_get_enum (value); |
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458 break; |
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459 case PROP_PRESENCE: |
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460 GST_PAD_TEMPLATE_PRESENCE (object) = g_value_get_enum (value); |
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461 break; |
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462 case PROP_CAPS: |
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463 /* allow caps == NULL for backwards compatibility (ie. g_object_new() |
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464 * called without any of the new properties) (FIXME 0.11) */ |
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465 if (g_value_get_boxed (value) != NULL) { |
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466 GST_PAD_TEMPLATE_CAPS (object) = |
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467 gst_caps_copy (g_value_get_boxed (value)); |
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468 } |
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469 break; |
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470 default: |
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471 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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472 break; |
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473 } |
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474 } |
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475 |
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476 static void |
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477 gst_pad_template_get_property (GObject * object, guint prop_id, GValue * value, |
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478 GParamSpec * pspec) |
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479 { |
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480 /* these properties are all construct-only */ |
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481 switch (prop_id) { |
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482 case PROP_NAME_TEMPLATE: |
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483 g_value_set_string (value, GST_PAD_TEMPLATE_NAME_TEMPLATE (object)); |
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484 break; |
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485 case PROP_DIRECTION: |
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486 g_value_set_enum (value, GST_PAD_TEMPLATE_DIRECTION (object)); |
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487 break; |
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488 case PROP_PRESENCE: |
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489 g_value_set_enum (value, GST_PAD_TEMPLATE_PRESENCE (object)); |
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490 break; |
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491 case PROP_CAPS: |
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492 g_value_set_boxed (value, GST_PAD_TEMPLATE_CAPS (object)); |
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493 break; |
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494 default: |
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495 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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496 break; |
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497 } |
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498 } |