mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-04-24 09:34:25 +00:00
Code Issues 1 Projects Releases Wiki Activity

Updated the docs with the new _request methods

Browse source 
Original commit message from CVS:
Updated the docs with the new _request methods
This commit is contained in:
Wim Taymans 2001-01-23 20:03:07 +00:00
parent d20f0b4bae
commit 59211a49ff
7 changed files with 97 additions and 109 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
docs/gst/gstreamer-sections.txt
View file

@ -206,7 +206,7 @@ gst_element_get_padtemplate_list
gst_element_get_padtemplate_by_name
gst_element_add_ghost_pad
gst_element_remove_ghost_pad
gst_element_request_pad
gst_element_request_compatible_pad
gst_element_request_pad_by_name
gst_element_connect
gst_element_disconnect

4
docs/gst/tmpl/gstelement.sgml
View file

@ -327,7 +327,7 @@ circumstances.
@pad:
<!-- ##### FUNCTION gst_element_request_pad ##### -->
<!-- ##### FUNCTION gst_element_request_compatible_pad ##### -->
<para>
</para>
@ -335,8 +335,6 @@ circumstances.
@element:
@templ:
@Returns:
<!-- # Unused Parameters # -->
@temp:
<!-- ##### FUNCTION gst_element_request_pad_by_name ##### -->

24
docs/gst/tmpl/gstreamer-unused.sgml
View file

@ -217,13 +217,6 @@ the stream.
</para>
<!-- ##### MACRO GST_SINESRC ##### -->
<para>
</para>
@obj:
<!-- ##### FUNCTION gst_object_get_type ##### -->
<para>
@ -231,6 +224,13 @@ the stream.
@Returns:
<!-- ##### MACRO GST_SINESRC ##### -->
<para>
</para>
@obj:
<!-- ##### SECTION ./tmpl/plugin.sgml:Long_Description ##### -->
<para>
@ -1381,6 +1381,16 @@ The end point of a filter graph
@Returns:
<!-- ##### FUNCTION gst_element_request_pad ##### -->
<para>
</para>
@element:
@templ:
@Returns:
@temp:
<!-- ##### FUNCTION gst_pad_set_caps ##### -->
<para>

18
gst/gstelement.c
View file

@ -403,30 +403,12 @@ gst_element_get_padtemplate_by_compatible (GstElement *element, GstPadTemplate *
return newtempl;
}
/**
* gst_element_request_pad:
* @element: element to request a new pad from
* @templ: the padtemplate specifying the pad to connect to.
*
* Request a new pad from the element. The template will
* be used to decide what type of pad to create. This function
* is typically used for elements with a padtemplate with presence
* GST_PAD_REQUEST.
*
* Returns: the new pad that was created, NULL if no suitable pad can be
* created.
*/
static GstPad*
gst_element_request_pad (GstElement *element, GstPadTemplate *templ)
{
GstPad *newpad = NULL;
GstElementClass *oclass;
g_return_val_if_fail (element != NULL, NULL);
g_return_val_if_fail (GST_IS_ELEMENT (element), NULL);
g_return_val_if_fail (templ != NULL, NULL);
/* call the state change function so it can set the state */
oclass = GST_ELEMENT_CLASS (GTK_OBJECT (element)->klass);
if (oclass->request_new_pad)
newpad = (oclass->request_new_pad)(element, templ);

44
gst/gstelement.h
View file

@ -74,11 +74,11 @@ static inline char *_gst_print_statename(int state) {
// Note: using 8 bit shift mostly "just because", it leaves us enough room to grow <g>
#define GST_STATE_TRANSITION(obj) ((GST_STATE(obj)<<8) | GST_STATE_PENDING(obj))
#define GST_STATE_NULL_TO_READY ((GST_STATE_NULL<<8) | GST_STATE_READY)
#define GST_STATE_READY_TO_PLAYING ((GST_STATE_READY<<8) | GST_STATE_PLAYING)
#define GST_STATE_NULL_TO_READY ((GST_STATE_NULL<<8) | GST_STATE_READY)
#define GST_STATE_READY_TO_PLAYING ((GST_STATE_READY<<8) | GST_STATE_PLAYING)
#define GST_STATE_PLAYING_TO_PAUSED ((GST_STATE_PLAYING<<8) | GST_STATE_PAUSED)
#define GST_STATE_PAUSED_TO_PLAYING ((GST_STATE_PAUSED<<8) | GST_STATE_PLAYING)
#define GST_STATE_PLAYING_TO_READY ((GST_STATE_PLAYING<<8) | GST_STATE_READY)
#define GST_STATE_PLAYING_TO_READY ((GST_STATE_PLAYING<<8) | GST_STATE_READY)
#define GST_STATE_READY_TO_NULL ((GST_STATE_READY<<8) | GST_STATE_NULL)
#define GST_TYPE_ELEMENT \
@ -155,20 +155,20 @@ struct _GstElementClass {
GstElementFactory *elementfactory;
/* signal callbacks */
void (*state_change) (GstElement *element,GstElementState state);
void (*new_pad) (GstElement *element,GstPad *pad);
void (*state_change) (GstElement *element,GstElementState state);
void (*new_pad) (GstElement *element,GstPad *pad);
void (*new_ghost_pad) (GstElement *element,GstPad *pad);
void (*error) (GstElement *element,gchar *error);
void (*error) (GstElement *element,gchar *error);
void (*eos) (GstElement *element);
/* change the element state */
GstElementStateReturn (*change_state) (GstElement *element);
GstElementStateReturn (*change_state) (GstElement *element);
/* request a new pad */
GstPad* (*request_new_pad) (GstElement *element, GstPadTemplate *templ);
GstPad* (*request_new_pad) (GstElement *element, GstPadTemplate *templ);
/* create or read XML representation of self */
xmlNodePtr (*save_thyself) (GstElement *element, xmlNodePtr parent);
void (*restore_thyself) (GstElement *element, xmlNodePtr self, GHashTable *elements);
xmlNodePtr (*save_thyself) (GstElement *element, xmlNodePtr parent);
void (*restore_thyself) (GstElement *element, xmlNodePtr self, GHashTable *elements);
};
struct _GstElementDetails {
@ -208,7 +208,7 @@ GstPad* gst_element_get_pad (GstElement *element, const gchar *name);
GList* gst_element_get_pad_list (GstElement *element);
GList* gst_element_get_padtemplate_list (GstElement *element);
GstPadTemplate* gst_element_get_padtemplate_by_name (GstElement *element, const guchar *name);
void gst_element_add_ghost_pad (GstElement *element, GstPad *pad, gchar *name);
void gst_element_add_ghost_pad (GstElement *element, GstPad *pad, gchar *name);
void gst_element_remove_ghost_pad (GstElement *element, GstPad *pad);
GstPad* gst_element_request_compatible_pad (GstElement *element, GstPadTemplate *templ);
@ -241,29 +241,29 @@ GstElement* gst_element_load_thyself (xmlNodePtr parent, GHashTable *elements);
**/
GstElementFactory* gst_elementfactory_new (const gchar *name,GtkType type,
GstElementDetails *details);
void gst_elementfactory_destroy (GstElementFactory *elementfactory);
void gst_elementfactory_destroy (GstElementFactory *elementfactory);
GstElementFactory* gst_elementfactory_find (const gchar *name);
GList* gst_elementfactory_get_list (void);
void gst_elementfactory_add_padtemplate (GstElementFactory *elementfactory,
GstPadTemplate *templ);
void gst_elementfactory_add_padtemplate (GstElementFactory *elementfactory,
GstPadTemplate *templ);
gboolean gst_elementfactory_can_src_caps (GstElementFactory *factory,
gboolean gst_elementfactory_can_src_caps (GstElementFactory *factory,
GstCaps *caps);
gboolean gst_elementfactory_can_sink_caps (GstElementFactory *factory,
GstCaps *caps);
gboolean gst_elementfactory_can_src_caps_list (GstElementFactory *factory,
gboolean gst_elementfactory_can_sink_caps (GstElementFactory *factory,
GstCaps *caps);
gboolean gst_elementfactory_can_src_caps_list (GstElementFactory *factory,
GList *caps);
gboolean gst_elementfactory_can_sink_caps_list (GstElementFactory *factory,
GList *caps);
gboolean gst_elementfactory_can_sink_caps_list (GstElementFactory *factory,
GList *caps);
GstElement* gst_elementfactory_create (GstElementFactory *factory,
const gchar *name);
const gchar *name);
/* FIXME this name is wrong, probably so is the one above it */
GstElement* gst_elementfactory_make (const gchar *factoryname, const gchar *name);
xmlNodePtr gst_elementfactory_save_thyself (GstElementFactory *factory, xmlNodePtr parent);
xmlNodePtr gst_elementfactory_save_thyself (GstElementFactory *factory, xmlNodePtr parent);
GstElementFactory* gst_elementfactory_load_thyself (xmlNodePtr parent);
#ifdef __cplusplus

12
libs/videoscale/gstvideoscale.c
View file

@ -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
@ -365,10 +364,9 @@ static void gst_videoscale_scale_nearest(GstVideoScale *scale, unsigned char *sr
: "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);
}