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Created an overridable method for seeking on an element, along with a default implementation.

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Original commit message from CVS:
Created an overridable method for seeking on an element, along with a default
implementation.
make queue flush on discont (not entirely correct)
removed the new_media from the discont event.
This commit is contained in:
Wim Taymans 2002-05-30 19:03:30 +00:00
parent 0aa7b2db8c
commit a599a5b1df
6 changed files with 47 additions and 10 deletions
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39
gst/gstelement.c
View file

@ -63,6 +63,8 @@ static void gst_element_dispatch_properties_changed (GObject * object, guint n
static void gst_element_dispose (GObject *object);
static gboolean gst_element_send_event_default (GstElement *element, GstEvent *event);
static GstElementStateReturn gst_element_change_state (GstElement *element);
static void gst_element_error_func (GstElement* element, GstElement *source, gchar *errormsg);
@ -159,6 +161,7 @@ gst_element_class_init (GstElementClass *klass)
klass->elementfactory = NULL;
klass->padtemplates = NULL;
klass->numpadtemplates = 0;
klass->send_event = GST_DEBUG_FUNCPTR (gst_element_send_event_default);
}
static void
@ -1592,7 +1595,7 @@ gst_element_disconnect (GstElement *src, GstElement *dest)
srcpads = gst_element_get_pad_list (src);
while (srcpads) {
pad = GST_PAD (srcpads->data);
pad = GST_PAD_CAST (srcpads->data);
if (GST_PAD_DIRECTION (pad) == GST_PAD_SRC)
if (GST_OBJECT_PARENT (GST_PAD_PEER (pad)) == (GstObject*) dest)
@ -1616,6 +1619,39 @@ gst_element_error_func (GstElement* element, GstElement *source, gchar *errormsg
}
}
static gboolean
gst_element_send_event_default (GstElement *element, GstEvent *event)
{
GList *pads = element->pads;
gboolean res = FALSE;
while (pads) {
GstPad *pad = GST_PAD_CAST (pads->data);
if (GST_PAD_DIRECTION (pad) == GST_PAD_SINK) {
if (GST_PAD_IS_CONNECTED (pad)) {
res = gst_pad_send_event (GST_PAD_PEER (pad), event);
break;
}
}
pads = g_list_next (pads);
}
return res;
}
gboolean
gst_element_send_event (GstElement *element, GstEvent *event)
{
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (CLASS (element)->send_event)
return CLASS (element)->send_event (element, event);
return FALSE;
}
/**
* gst_element_error:
* @element: Element with the error
@ -1633,7 +1669,6 @@ gst_element_error (GstElement *element, const gchar *error, ...)
/* checks */
g_return_if_fail (GST_IS_ELEMENT (element));
g_return_if_fail (element != NULL);
g_return_if_fail (error != NULL);
/* create error message */

3
gst/gstelement.h
View file

@ -171,6 +171,7 @@ struct _GstElementClass {
/* vtable*/
gboolean (*release_locks) (GstElement *element);
gboolean (*send_event) (GstElement *element, GstEvent *event);
/* change the element state */
GstElementStateReturn (*change_state) (GstElement *element);
/* request a new pad */
@ -261,6 +262,8 @@ gboolean gst_element_connect_pads_filtered (GstElement *src, const gchar *srcpa
void gst_element_disconnect_pads (GstElement *src, const gchar *srcpadname,
GstElement *dest, const gchar *destpadname);
gboolean gst_element_send_event (GstElement *element, GstEvent *event);
void gst_element_set_eos (GstElement *element);
void gst_element_error (GstElement *element, const gchar *error, ...);

4
gst/gstevent.c
View file

@ -168,14 +168,14 @@ gst_event_new_seek (GstSeekType type, gint64 offset)
}
GstEvent*
gst_event_new_discontinuous (gboolean new_media, GstSeekType format1, ...)
gst_event_new_discontinuous (gboolean flush, GstSeekType format1, ...)
{
va_list var_args;
GstEvent *event;
gint count = 0;
event = gst_event_new (GST_EVENT_DISCONTINUOUS);
GST_EVENT_DISCONT_NEW_MEDIA (event) = new_media;
GST_EVENT_DISCONT_FLUSH (event) = flush;
va_start (var_args, format1);

7
gst/gstevent.h
View file

@ -88,7 +88,6 @@ typedef struct
#define GST_EVENT_SEEK_OFFSET(event) (GST_EVENT(event)->event_data.seek.offset)
#define GST_EVENT_SEEK_ACCURACY(event) (GST_EVENT(event)->event_data.seek.accuracy)
#define GST_EVENT_DISCONT_NEW_MEDIA(event) (GST_EVENT(event)->event_data.discont.new_media)
#define GST_EVENT_DISCONT_FLUSH(event) (GST_EVENT(event)->event_data.discont.flush)
#define GST_EVENT_DISCONT_OFFSET(event,i) (GST_EVENT(event)->event_data.discont.offsets[i])
#define GST_EVENT_DISCONT_OFFSET_LEN(event) (GST_EVENT(event)->event_data.discont.noffsets)
@ -109,9 +108,7 @@ struct _GstEvent {
struct {
GstFormatValue offsets[8];
gint noffsets;
gboolean new_media;
gboolean flush;
GstSeekAccuracy accuracy;
} discont;
} event_data;
};
@ -122,8 +119,10 @@ GstEvent* gst_event_new (GstEventType type);
GstEvent* gst_event_copy (GstEvent *event);
void gst_event_free (GstEvent *event);
/* seek events */
/* seek event */
GstEvent* gst_event_new_seek (GstSeekType type, gint64 offset);
/* discontinous event */
GstEvent* gst_event_new_discontinuous (gboolean new_media,
GstFormat format1, ...);
gboolean gst_event_discont_get_value (GstEvent *event, GstFormat format, gint64 *value);

2
gst/gstqueue.c
View file

@ -308,7 +308,7 @@ restart:
GST_ELEMENT_NAME (queue), queue->level_buffers);
break;
case GST_EVENT_DISCONTINUOUS:
//gst_queue_locked_flush (queue);
gst_queue_locked_flush (queue);
break;
default:
/*gst_pad_event_default (pad, GST_EVENT (buf)); */

2
plugins/elements/gstqueue.c
View file

@ -308,7 +308,7 @@ restart:
GST_ELEMENT_NAME (queue), queue->level_buffers);
break;
case GST_EVENT_DISCONTINUOUS:
//gst_queue_locked_flush (queue);
gst_queue_locked_flush (queue);
break;
default:
/*gst_pad_event_default (pad, GST_EVENT (buf)); */