mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Updated the docs with the new _request methods
Original commit message from CVS: Updated the docs with the new _request methods
This commit is contained in:
Wim Taymans
parent
d20f0b4bae
commit
59211a49ff
7 changed files with 97 additions and 109 deletions
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@ -206,7 +206,7 @@ gst_element_get_padtemplate_list
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gst_element_get_padtemplate_by_name
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gst_element_add_ghost_pad
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gst_element_remove_ghost_pad
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gst_element_request_pad
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gst_element_request_compatible_pad
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gst_element_request_pad_by_name
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gst_element_connect
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gst_element_disconnect
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@ -327,7 +327,7 @@ circumstances.
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@pad:
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<!-- ##### FUNCTION gst_element_request_pad ##### -->
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<!-- ##### FUNCTION gst_element_request_compatible_pad ##### -->
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<para>
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</para>
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@ -335,8 +335,6 @@ circumstances.
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@element:
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@templ:
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@Returns:
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<!-- # Unused Parameters # -->
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@temp:
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<!-- ##### FUNCTION gst_element_request_pad_by_name ##### -->
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@ -217,13 +217,6 @@ the stream.
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</para>
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<!-- ##### MACRO GST_SINESRC ##### -->
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<para>
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</para>
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@obj:
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<!-- ##### FUNCTION gst_object_get_type ##### -->
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<para>
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@ -231,6 +224,13 @@ the stream.
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@Returns:
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<!-- ##### MACRO GST_SINESRC ##### -->
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<para>
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</para>
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@obj:
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<!-- ##### SECTION ./tmpl/plugin.sgml:Long_Description ##### -->
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<para>
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@ -1381,6 +1381,16 @@ The end point of a filter graph
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@Returns:
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<!-- ##### FUNCTION gst_element_request_pad ##### -->
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<para>
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</para>
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@element:
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@templ:
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@Returns:
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@temp:
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<!-- ##### FUNCTION gst_pad_set_caps ##### -->
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<para>
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@ -403,30 +403,12 @@ gst_element_get_padtemplate_by_compatible (GstElement *element, GstPadTemplate *
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return newtempl;
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}
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/**
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* gst_element_request_pad:
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* @element: element to request a new pad from
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* @templ: the padtemplate specifying the pad to connect to.
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*
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* Request a new pad from the element. The template will
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* be used to decide what type of pad to create. This function
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* is typically used for elements with a padtemplate with presence
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* GST_PAD_REQUEST.
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*
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* Returns: the new pad that was created, NULL if no suitable pad can be
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* created.
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*/
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static GstPad*
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gst_element_request_pad (GstElement *element, GstPadTemplate *templ)
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{
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GstPad *newpad = NULL;
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GstElementClass *oclass;
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g_return_val_if_fail (element != NULL, NULL);
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g_return_val_if_fail (GST_IS_ELEMENT (element), NULL);
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g_return_val_if_fail (templ != NULL, NULL);
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/* call the state change function so it can set the state */
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oclass = GST_ELEMENT_CLASS (GTK_OBJECT (element)->klass);
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if (oclass->request_new_pad)
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newpad = (oclass->request_new_pad)(element, templ);
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@ -74,11 +74,11 @@ static inline char *_gst_print_statename(int state) {
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// Note: using 8 bit shift mostly "just because", it leaves us enough room to grow <g>
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#define GST_STATE_TRANSITION(obj) ((GST_STATE(obj)<<8) | GST_STATE_PENDING(obj))
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#define GST_STATE_NULL_TO_READY ((GST_STATE_NULL<<8) | GST_STATE_READY)
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#define GST_STATE_READY_TO_PLAYING ((GST_STATE_READY<<8) | GST_STATE_PLAYING)
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#define GST_STATE_NULL_TO_READY ((GST_STATE_NULL<<8) | GST_STATE_READY)
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#define GST_STATE_READY_TO_PLAYING ((GST_STATE_READY<<8) | GST_STATE_PLAYING)
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#define GST_STATE_PLAYING_TO_PAUSED ((GST_STATE_PLAYING<<8) | GST_STATE_PAUSED)
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#define GST_STATE_PAUSED_TO_PLAYING ((GST_STATE_PAUSED<<8) | GST_STATE_PLAYING)
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#define GST_STATE_PLAYING_TO_READY ((GST_STATE_PLAYING<<8) | GST_STATE_READY)
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#define GST_STATE_PLAYING_TO_READY ((GST_STATE_PLAYING<<8) | GST_STATE_READY)
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#define GST_STATE_READY_TO_NULL ((GST_STATE_READY<<8) | GST_STATE_NULL)
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#define GST_TYPE_ELEMENT \
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@ -155,20 +155,20 @@ struct _GstElementClass {
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GstElementFactory *elementfactory;
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/* signal callbacks */
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void (*state_change) (GstElement *element,GstElementState state);
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void (*new_pad) (GstElement *element,GstPad *pad);
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void (*state_change) (GstElement *element,GstElementState state);
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void (*new_pad) (GstElement *element,GstPad *pad);
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void (*new_ghost_pad) (GstElement *element,GstPad *pad);
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void (*error) (GstElement *element,gchar *error);
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void (*error) (GstElement *element,gchar *error);
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void (*eos) (GstElement *element);
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/* change the element state */
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GstElementStateReturn (*change_state) (GstElement *element);
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GstElementStateReturn (*change_state) (GstElement *element);
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/* request a new pad */
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GstPad* (*request_new_pad) (GstElement *element, GstPadTemplate *templ);
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GstPad* (*request_new_pad) (GstElement *element, GstPadTemplate *templ);
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/* create or read XML representation of self */
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xmlNodePtr (*save_thyself) (GstElement *element, xmlNodePtr parent);
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void (*restore_thyself) (GstElement *element, xmlNodePtr self, GHashTable *elements);
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xmlNodePtr (*save_thyself) (GstElement *element, xmlNodePtr parent);
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void (*restore_thyself) (GstElement *element, xmlNodePtr self, GHashTable *elements);
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};
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struct _GstElementDetails {
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@ -208,7 +208,7 @@ GstPad* gst_element_get_pad (GstElement *element, const gchar *name);
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GList* gst_element_get_pad_list (GstElement *element);
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GList* gst_element_get_padtemplate_list (GstElement *element);
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GstPadTemplate* gst_element_get_padtemplate_by_name (GstElement *element, const guchar *name);
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void gst_element_add_ghost_pad (GstElement *element, GstPad *pad, gchar *name);
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void gst_element_add_ghost_pad (GstElement *element, GstPad *pad, gchar *name);
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void gst_element_remove_ghost_pad (GstElement *element, GstPad *pad);
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GstPad* gst_element_request_compatible_pad (GstElement *element, GstPadTemplate *templ);
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@ -241,29 +241,29 @@ GstElement* gst_element_load_thyself (xmlNodePtr parent, GHashTable *elements);
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**/
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GstElementFactory* gst_elementfactory_new (const gchar *name,GtkType type,
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GstElementDetails *details);
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void gst_elementfactory_destroy (GstElementFactory *elementfactory);
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void gst_elementfactory_destroy (GstElementFactory *elementfactory);
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GstElementFactory* gst_elementfactory_find (const gchar *name);
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GList* gst_elementfactory_get_list (void);
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void gst_elementfactory_add_padtemplate (GstElementFactory *elementfactory,
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GstPadTemplate *templ);
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void gst_elementfactory_add_padtemplate (GstElementFactory *elementfactory,
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GstPadTemplate *templ);
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gboolean gst_elementfactory_can_src_caps (GstElementFactory *factory,
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gboolean gst_elementfactory_can_src_caps (GstElementFactory *factory,
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GstCaps *caps);
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gboolean gst_elementfactory_can_sink_caps (GstElementFactory *factory,
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GstCaps *caps);
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gboolean gst_elementfactory_can_src_caps_list (GstElementFactory *factory,
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gboolean gst_elementfactory_can_sink_caps (GstElementFactory *factory,
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GstCaps *caps);
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gboolean gst_elementfactory_can_src_caps_list (GstElementFactory *factory,
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GList *caps);
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gboolean gst_elementfactory_can_sink_caps_list (GstElementFactory *factory,
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GList *caps);
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gboolean gst_elementfactory_can_sink_caps_list (GstElementFactory *factory,
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GList *caps);
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GstElement* gst_elementfactory_create (GstElementFactory *factory,
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const gchar *name);
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const gchar *name);
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/* FIXME this name is wrong, probably so is the one above it */
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GstElement* gst_elementfactory_make (const gchar *factoryname, const gchar *name);
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xmlNodePtr gst_elementfactory_save_thyself (GstElementFactory *factory, xmlNodePtr parent);
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xmlNodePtr gst_elementfactory_save_thyself (GstElementFactory *factory, xmlNodePtr parent);
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GstElementFactory* gst_elementfactory_load_thyself (xmlNodePtr parent);
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#ifdef __cplusplus
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@ -271,5 +271,5 @@ GstElementFactory* gst_elementfactory_load_thyself (xmlNodePtr parent);
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#endif /* __cplusplus */
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#endif /* __GST_ELEMENT_H__ */
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#endif /* __GST_ELEMENT_H__ */
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@ -80,8 +80,8 @@ gst_media_play_get_type(void)
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return play_type;
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}
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static void
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gst_media_play_class_init (GstMediaPlayClass *klass)
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static void
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gst_media_play_class_init (GstMediaPlayClass *klass)
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{
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GtkObjectClass *object_class;
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@ -99,7 +99,7 @@ typedef struct {
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} connect_struct;
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/* we need more control here so... */
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static void
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static void
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gst_media_play_connect_func (const gchar *handler_name,
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GtkObject *object,
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const gchar *signal_name,
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@ -122,8 +122,8 @@ gst_media_play_connect_func (const gchar *handler_name,
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}
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static void
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gst_media_play_init(GstMediaPlay *mplay)
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static void
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gst_media_play_init(GstMediaPlay *mplay)
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{
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GModule *symbols;
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connect_struct data;
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@ -144,7 +144,7 @@ gst_media_play_init(GstMediaPlay *mplay)
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{
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GtkArg arg;
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GtkRange *range;
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arg.name = "adjustment";
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gtk_object_getv (GTK_OBJECT (mplay->slider), 1, &arg);
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range = GTK_RANGE (GTK_VALUE_POINTER (arg));
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@ -206,28 +206,28 @@ gst_media_play_init(GstMediaPlay *mplay)
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}
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GstMediaPlay *
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gst_media_play_new ()
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gst_media_play_new ()
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{
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return GST_MEDIA_PLAY (gtk_type_new (GST_TYPE_MEDIA_PLAY));
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}
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static void
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gst_media_play_update_status_area (GstMediaPlay *play,
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gulong current_time,
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static void
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gst_media_play_update_status_area (GstMediaPlay *play,
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gulong current_time,
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gulong total_time)
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{
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gchar time[14];
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sprintf(time, "%02lu:%02lu / %02lu:%02lu",
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sprintf(time, "%02lu:%02lu / %02lu:%02lu",
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current_time/60, current_time%60,
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total_time/60, total_time%60);
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gst_status_area_set_playtime (play->status, time);
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}
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void
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gst_media_play_start_uri (GstMediaPlay *play,
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const guchar *uri)
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void
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gst_media_play_start_uri (GstMediaPlay *play,
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const guchar *uri)
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{
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GstPlayReturn ret;
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@ -241,7 +241,7 @@ gst_media_play_start_uri (GstMediaPlay *play,
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gtk_widget_set_sensitive (play->slider, FALSE);
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}
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gtk_window_set_title (GTK_WINDOW (play->window),
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gtk_window_set_title (GTK_WINDOW (play->window),
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g_strconcat ( "Gstplay - ", uri, NULL));
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gst_play_play (play->play);
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@ -262,7 +262,7 @@ on_load_file_selected (GtkWidget *button,
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gchar *file_name = gtk_file_selection_get_filename (GTK_FILE_SELECTION(selector));
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gdk_threads_leave();
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gst_media_play_start_uri (play, file_name);
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gst_media_play_start_uri (play, file_name);
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gdk_threads_enter();
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g_free (data);
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@ -297,10 +297,10 @@ on_open2_activate (GtkWidget *widget,
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}
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static void
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static void
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gst_media_play_set_arg (GtkObject *object,
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GtkArg *arg,
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guint id)
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guint id)
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{
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GstMediaPlay *play;
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play = GST_MEDIA_PLAY (object);
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@ -312,10 +312,10 @@ gst_media_play_set_arg (GtkObject *object,
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}
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}
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static void
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static void
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gst_media_play_get_arg (GtkObject *object,
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GtkArg *arg,
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guint id)
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guint id)
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{
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GstMediaPlay *play;
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@ -359,15 +359,15 @@ gst_media_play_state_changed (GstPlay *play,
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gdk_threads_leave ();
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}
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void
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on_gst_media_play_destroy (GtkWidget *widget,
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void
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on_gst_media_play_destroy (GtkWidget *widget,
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GstMediaPlay *mplay)
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{
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gst_main_quit ();
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}
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void
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on_exit_menu_activate (GtkWidget *widget,
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void
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on_exit_menu_activate (GtkWidget *widget,
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GstMediaPlay *mplay)
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{
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gdk_threads_leave ();
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@ -376,9 +376,9 @@ on_exit_menu_activate (GtkWidget *widget,
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gst_main_quit ();
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}
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gint
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on_gst_media_play_delete_event (GtkWidget *widget,
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GdkEvent *event,
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gint
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on_gst_media_play_delete_event (GtkWidget *widget,
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GdkEvent *event,
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GstMediaPlay *mplay)
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{
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gdk_threads_leave ();
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@ -387,8 +387,8 @@ on_gst_media_play_delete_event (GtkWidget *widget,
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return FALSE;
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}
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void
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on_extended1_activate (GtkCheckMenuItem *item,
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void
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on_extended1_activate (GtkCheckMenuItem *item,
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GstMediaPlay *mplay)
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{
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gdk_threads_leave ();
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@ -464,9 +464,9 @@ on_toggle_stop_toggled (GtkToggleButton *togglebutton,
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update_buttons (play, GST_PLAY_STATE(play->play));
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}
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static void
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update_buttons (GstMediaPlay *mplay,
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GstPlayState state)
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static void
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update_buttons (GstMediaPlay *mplay,
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GstPlayState state)
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{
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gtk_signal_handler_block_by_func (GTK_OBJECT (mplay->play_button),
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GTK_SIGNAL_FUNC (on_toggle_play_toggled),
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@ -503,10 +503,10 @@ update_buttons (GstMediaPlay *mplay,
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mplay);
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}
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static void
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static void
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update_slider (GstMediaPlay *mplay,
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GtkAdjustment *adjustment,
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gfloat value)
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GtkAdjustment *adjustment,
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gfloat value)
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{
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gtk_signal_handler_block_by_func (GTK_OBJECT (adjustment),
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GTK_SIGNAL_FUNC (gst_media_play_slider_changed),
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@ -25,20 +25,20 @@
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//FIXME
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#include <gst/meta/videoraw.h>
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static void gst_videoscale_scale_yuv(GstVideoScale *scale, unsigned char *src, unsigned char *dest);
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static void gst_videoscale_scale_rgb(GstVideoScale *scale, unsigned char *src, unsigned char *dest);
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static void gst_videoscale_scale_yuv(GstVideoScale *scale, unsigned char *src, unsigned char *dest);
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static void gst_videoscale_scale_rgb(GstVideoScale *scale, unsigned char *src, unsigned char *dest);
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/* scalers */
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static void generate_rowbytes(unsigned char *copy_row, int src_w, int dst_w, int bpp);
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static void gst_videoscale_scale_nearest(GstVideoScale *scale, unsigned char *src, unsigned char *dest, int sw, int sh, int dw, int dh);
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static void gst_videoscale_scale_plane_slow(GstVideoScale *scale, unsigned char *src, unsigned char *dest, int sw, int sh, int dw, int dh);
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static void gst_videoscale_scale_nearest(GstVideoScale *scale, unsigned char *src, unsigned char *dest, int sw, int sh, int dw, int dh);
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static void gst_videoscale_scale_plane_slow(GstVideoScale *scale, unsigned char *src, unsigned char *dest, int sw, int sh, int dw, int dh);
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static void gst_videoscale_scale_point_sample(GstVideoScale *scale, unsigned char *src, unsigned char *dest, int sw, int sh, int dw, int dh);
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/* filters */
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static unsigned char gst_videoscale_bilinear(unsigned char *src, double x, double y, int sw, int sh);
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static unsigned char gst_videoscale_bicubic(unsigned char *src, double x, double y, int sw, int sh);
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GstVideoScale *gst_videoscale_new(gint sw, gint sh, gint dw, gint dh, GstColorSpaceType format, GstVideoScaleMethod method)
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GstVideoScale *gst_videoscale_new(gint sw, gint sh, gint dw, gint dh, GstColorSpaceType format, GstVideoScaleMethod method)
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{
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GstVideoScale *new = g_malloc(sizeof(GstVideoScale));
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gint scale_bytes;
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@ -103,12 +103,12 @@ GstVideoScale *gst_videoscale_new(gint sw, gint sh, gint dw, gint dh, GstColorSp
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return new;
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}
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void gst_videoscale_destroy(GstVideoScale *scale)
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void gst_videoscale_destroy(GstVideoScale *scale)
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{
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g_free(scale);
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||||
}
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||||
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||||
static void gst_videoscale_scale_rgb(GstVideoScale *scale, unsigned char *src, unsigned char *dest)
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static void gst_videoscale_scale_rgb(GstVideoScale *scale, unsigned char *src, unsigned char *dest)
|
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{
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int sw = scale->source_width;
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int sh = scale->source_height;
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|
|
@ -122,13 +122,13 @@ static void gst_videoscale_scale_rgb(GstVideoScale *scale, unsigned char *src, u
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scale->scaler(scale, src, dest, sw, sh, dw, dh);
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}
|
||||
|
||||
static void gst_videoscale_scale_yuv(GstVideoScale *scale, unsigned char *src, unsigned char *dest)
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static void gst_videoscale_scale_yuv(GstVideoScale *scale, unsigned char *src, unsigned char *dest)
|
||||
{
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||||
int sw = scale->source_width;
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int sh = scale->source_height;
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int dw = scale->dest_width;
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int dh = scale->dest_height;
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||||
|
||||
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GST_DEBUG (0,"videoscale: scaling YUV420P %dx%d to %dx%d\n", sw, sh, dw, dh);
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||||
|
||||
scale->scaler(scale, src, dest, sw, sh, dw, dh);
|
||||
|
|
@ -194,12 +194,12 @@ static unsigned char gst_videoscale_bicubic(unsigned char *src, double x, double
|
|||
a4 = a*a*(1-a);
|
||||
|
||||
k2 = MAX(0, k-1);
|
||||
t1=a1*RC(j-1,k2)+ a2*RC(j,k2)+ a3*RC(j+1,k2)- a4*RC(j+2,k2);
|
||||
t2=a1*RC(j-1,k)+ a2*RC(j,k)+ a3*RC(j+1,k)- a4*RC(j+2,k);
|
||||
t1=a1*RC(j-1,k2)+ a2*RC(j,k2)+ a3*RC(j+1,k2)- a4*RC(j+2,k2);
|
||||
t2=a1*RC(j-1,k)+ a2*RC(j,k)+ a3*RC(j+1,k)- a4*RC(j+2,k);
|
||||
k2 = MIN(sh, k+1);
|
||||
t3=a1*RC(j-1,k2)+ a2*RC(j,k2)+ a3*RC(j+1,k2)- a4*RC(j+2,k2);
|
||||
t3=a1*RC(j-1,k2)+ a2*RC(j,k2)+ a3*RC(j+1,k2)- a4*RC(j+2,k2);
|
||||
k2 = MIN(sh, k+2);
|
||||
t4=a1*RC(j-1,k2)+ a2*RC(j,k2)+ a3*RC(j+1,k2)- a4*RC(j+2,k2);
|
||||
t4=a1*RC(j-1,k2)+ a2*RC(j,k2)+ a3*RC(j+1,k2)- a4*RC(j+2,k2);
|
||||
|
||||
dest= -b*(1-b)*(1-b)*t1+ (1-2*b*b+b*b*b)*t2+ b*(1+b-b*b)*t3+ b*b*(b-1)*t4;
|
||||
|
||||
|
|
@ -236,7 +236,6 @@ static void gst_videoscale_scale_plane_slow(GstVideoScale *scale, unsigned char
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#define PREFIX16 0x66
|
||||
|
|
@ -290,13 +289,13 @@ static void generate_rowbytes(unsigned char *copy_row, int src_w, int dst_w, int
|
|||
}
|
||||
|
||||
|
||||
static void gst_videoscale_scale_point_sample(GstVideoScale *scale, unsigned char *src, unsigned char *dest, int sw, int sh, int dw, int dh)
|
||||
static void gst_videoscale_scale_point_sample(GstVideoScale *scale, unsigned char *src, unsigned char *dest, int sw, int sh, int dw, int dh)
|
||||
{
|
||||
int ypos, yinc, y;
|
||||
int xpos, xinc, x;
|
||||
int sum, xcount, ycount, loop;
|
||||
unsigned char *srcp, *srcp2;
|
||||
|
||||
|
||||
GST_DEBUG (0,"videoscale: scaling nearest %p %p %d\n", src, dest, dw);
|
||||
|
||||
|
||||
|
|
@ -337,13 +336,13 @@ static void gst_videoscale_scale_point_sample(GstVideoScale *scale, unsigned cha
|
|||
}
|
||||
}
|
||||
|
||||
static void gst_videoscale_scale_nearest(GstVideoScale *scale, unsigned char *src, unsigned char *dest, int sw, int sh, int dw, int dh)
|
||||
static void gst_videoscale_scale_nearest(GstVideoScale *scale, unsigned char *src, unsigned char *dest, int sw, int sh, int dw, int dh)
|
||||
{
|
||||
int pos, inc, y;
|
||||
int u1, u2;
|
||||
|
||||
|
||||
scale->temp = scale->copy_row;
|
||||
|
||||
|
||||
GST_DEBUG (0,"videoscale: scaling nearest %p %p %p %d\n", scale->copy_row, src, dest, dw);
|
||||
|
||||
|
||||
|
|
@ -356,7 +355,7 @@ static void gst_videoscale_scale_nearest(GstVideoScale *scale, unsigned char *sr
|
|||
src += sw;
|
||||
pos-=0x10000;
|
||||
}
|
||||
|
||||
|
||||
__asm__ __volatile__ ("
|
||||
movl %2, %%eax\n
|
||||
call *%%eax
|
||||
|
|
@ -364,11 +363,10 @@ static void gst_videoscale_scale_nearest(GstVideoScale *scale, unsigned char *sr
|
|||
: "=&D" (u1), "=&S" (u2)
|
||||
: "g" (scale->temp), "0" (dest), "1" (src)
|
||||
: "memory" );
|
||||
|
||||
|
||||
dest+= dw;
|
||||
|
||||
pos += inc;
|
||||
}
|
||||
GST_DEBUG (0,"videoscale: scaling nearest done %p\n", scale->copy_row);
|
||||
GST_DEBUG(0,"videoscale: scaling nearest done %p\n", scale->copy_row);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue