83 const GstCaps * possible_caps, gpointer data, GDestroyNotify data_notify) |
83 const GstCaps * possible_caps, gpointer data, GDestroyNotify data_notify) |
84 { |
84 { |
85 GstTypeFindFactory *factory; |
85 GstTypeFindFactory *factory; |
86 |
86 |
87 g_return_val_if_fail (name != NULL, FALSE); |
87 g_return_val_if_fail (name != NULL, FALSE); |
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88 g_return_val_if_fail (func != NULL, FALSE); |
88 |
89 |
89 GST_INFO ("registering typefind function for %s", name); |
90 GST_INFO ("registering typefind function for %s", name); |
90 |
91 |
91 factory = g_object_new (GST_TYPE_TYPE_FIND_FACTORY, NULL); |
92 factory = g_object_new (GST_TYPE_TYPE_FIND_FACTORY, NULL); |
92 GST_DEBUG_OBJECT (factory, "using new typefind factory for %s", name); |
93 GST_DEBUG_OBJECT (factory, "using new typefind factory for %s", name); |
93 g_assert (GST_IS_TYPE_FIND_FACTORY (factory)); |
94 g_assert (GST_IS_TYPE_FIND_FACTORY (factory)); |
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95 gst_plugin_feature_set_name (GST_PLUGIN_FEATURE (factory), name); |
94 |
96 |
95 gst_plugin_feature_set_name (GST_PLUGIN_FEATURE (factory), name); |
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96 gst_plugin_feature_set_rank (GST_PLUGIN_FEATURE (factory), rank); |
97 gst_plugin_feature_set_rank (GST_PLUGIN_FEATURE (factory), rank); |
97 |
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98 if (factory->extensions) |
98 if (factory->extensions) |
99 g_strfreev (factory->extensions); |
99 g_strfreev (factory->extensions); |
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100 |
100 factory->extensions = g_strdupv (extensions); |
101 factory->extensions = g_strdupv (extensions); |
101 |
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102 gst_caps_replace (&factory->caps, (GstCaps *) possible_caps); |
102 gst_caps_replace (&factory->caps, (GstCaps *) possible_caps); |
103 factory->function = func; |
103 factory->function = func; |
104 factory->user_data = data; |
104 factory->user_data = data; |
105 factory->user_data_notify = data_notify; |
105 factory->user_data_notify = data_notify; |
106 if (plugin && plugin->desc.name) { |
106 if (plugin && plugin->desc.name) { |
170 |
170 |
171 find->suggest (find->data, probability, caps); |
171 find->suggest (find->data, probability, caps); |
172 } |
172 } |
173 |
173 |
174 /** |
174 /** |
175 * gst_type_find_suggest_simple: |
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176 * @find: The #GstTypeFind object the function was called with |
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177 * @probability: The probability in percent that the suggestion is right |
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178 * @media_type: the media type of the suggested caps |
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179 * @fieldname: first field of the suggested caps, or NULL |
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180 * @...: additional arguments to the suggested caps in the same format as the |
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181 * arguments passed to gst_structure_new() (ie. triplets of field name, |
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182 * field GType and field value) |
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183 * |
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184 * If a #GstTypeFindFunction calls this function it suggests the caps with the |
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185 * given probability. A #GstTypeFindFunction may supply different suggestions |
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186 * in one call. It is up to the caller of the #GstTypeFindFunction to interpret |
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187 * these values. |
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188 * |
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189 * This function is similar to gst_type_find_suggest(), only that instead of |
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190 * passing a #GstCaps argument you can create the caps on the fly in the same |
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191 * way as you can with gst_caps_new_simple(). |
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192 * |
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193 * Make sure you terminate the list of arguments with a NULL argument and that |
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194 * the values passed have the correct type (in terms of width in bytes when |
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195 * passed to the vararg function - this applies particularly to gdouble and |
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196 * guint64 arguments). |
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197 * |
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198 * Since: 0.10.20 |
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199 */ |
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200 #ifdef __SYMBIAN32__ |
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201 EXPORT_C |
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202 #endif |
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203 |
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204 void |
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205 gst_type_find_suggest_simple (GstTypeFind * find, guint probability, |
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206 const char *media_type, const char *fieldname, ...) |
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207 { |
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208 GstStructure *structure; |
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209 va_list var_args; |
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210 GstCaps *caps; |
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211 |
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212 g_return_if_fail (find->suggest != NULL); |
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213 g_return_if_fail (probability <= 100); |
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214 g_return_if_fail (media_type != NULL); |
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215 |
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216 caps = gst_caps_new_empty (); |
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217 |
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218 va_start (var_args, fieldname); |
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219 structure = gst_structure_new_valist (media_type, fieldname, var_args); |
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220 va_end (var_args); |
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221 |
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222 gst_caps_append_structure (caps, structure); |
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223 g_return_if_fail (gst_caps_is_fixed (caps)); |
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224 |
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225 find->suggest (find->data, probability, caps); |
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226 gst_caps_unref (caps); |
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227 } |
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228 |
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229 /** |
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230 * gst_type_find_get_length: |
175 * gst_type_find_get_length: |
231 * @find: The #GstTypeFind the function was called with |
176 * @find: The #GstTypeFind the function was called with |
232 * |
177 * |
233 * Get the length of the data stream. |
178 * Get the length of the data stream. |
234 * |
179 * |