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gst/: allow probes to work on ghost pads by realizing the pad probe debugging

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Original commit message from CVS:

* gst/gstpad.h:
* gst/gstprobe.c:
allow probes to work on ghost pads by realizing the pad
probe debugging
This commit is contained in:
Thomas Vander Stichele 2005-01-13 15:29:40 +00:00
parent bbf6413bdf
commit 805ecd1f81
3 changed files with 86 additions and 65 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2005-01-13 Thomas Vander Stichele <thomas at apestaart dot org>
* gst/gstpad.h:
* gst/gstprobe.c:
allow probes to work on ghost pads by realizing the pad
probe debugging
2005-01-11 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* docs/gst/gstreamer-sections.txt:

128
gst/gstpad.h
View file

@ -40,10 +40,10 @@ GST_EXPORT GType _gst_pad_type;
GST_EXPORT GType _gst_real_pad_type;
GST_EXPORT GType _gst_ghost_pad_type;
/*
/*
* Pad base class
*/
#define GST_TYPE_PAD (_gst_pad_type)
#define GST_TYPE_PAD (_gst_pad_type)
#define GST_IS_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PAD))
#define GST_IS_PAD_FAST(obj) (G_OBJECT_TYPE(obj) == GST_TYPE_REAL_PAD || \
G_OBJECT_TYPE(obj) == GST_TYPE_GHOST_PAD)
@ -51,7 +51,7 @@ GST_EXPORT GType _gst_ghost_pad_type;
#define GST_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PAD, GstPad))
#define GST_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_PAD, GstPadClass))
/*
/*
* Real Pads
*/
#define GST_TYPE_REAL_PAD (_gst_real_pad_type)
@ -61,7 +61,7 @@ GST_EXPORT GType _gst_ghost_pad_type;
#define GST_REAL_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_REAL_PAD, GstRealPad))
#define GST_REAL_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_REAL_PAD, GstRealPadClass))
/*
/*
* Ghost Pads
*/
#define GST_TYPE_GHOST_PAD (_gst_ghost_pad_type)
@ -97,39 +97,39 @@ typedef enum {
#ifndef GST_DISABLE_DEPRECATED
#ifdef G_HAVE_ISO_VARARGS
#define GST_PAD_QUERY_TYPE_FUNCTION(functionname, ...) GST_QUERY_TYPE_FUNCTION (GstPad *, functionname, __VA_ARGS__);
#define GST_PAD_FORMATS_FUNCTION(functionname, ...) GST_FORMATS_FUNCTION (GstPad *, functionname, __VA_ARGS__);
#define GST_PAD_EVENT_MASK_FUNCTION(functionname, ...) GST_EVENT_MASK_FUNCTION (GstPad *, functionname, __VA_ARGS__);
#define GST_PAD_FORMATS_FUNCTION(functionname, ...) GST_FORMATS_FUNCTION (GstPad *, functionname, __VA_ARGS__);
#define GST_PAD_EVENT_MASK_FUNCTION(functionname, ...) GST_EVENT_MASK_FUNCTION (GstPad *, functionname, __VA_ARGS__);
#elif defined(G_HAVE_GNUC_VARARGS)
#define GST_PAD_QUERY_TYPE_FUNCTION(functionname, a...) GST_QUERY_TYPE_FUNCTION (GstPad *, functionname, a);
#define GST_PAD_FORMATS_FUNCTION(functionname, a...) GST_FORMATS_FUNCTION (GstPad *, functionname, a);
#define GST_PAD_FORMATS_FUNCTION(functionname, a...) GST_FORMATS_FUNCTION (GstPad *, functionname, a);
#define GST_PAD_EVENT_MASK_FUNCTION(functionname, a...) GST_EVENT_MASK_FUNCTION (GstPad *, functionname, a);
#endif
#endif
/* this defines the functions used to chain buffers
* pad is the sink pad (so the same chain function can be used for N pads)
* buf is the buffer being passed */
typedef void (*GstPadChainFunction) (GstPad *pad,GstData *data);
typedef GstData* (*GstPadGetFunction) (GstPad *pad);
typedef void (*GstPadChainFunction) (GstPad *pad,GstData *data);
typedef GstData* (*GstPadGetFunction) (GstPad *pad);
typedef gboolean (*GstPadEventFunction) (GstPad *pad, GstEvent *event);
typedef gboolean (*GstPadConvertFunction) (GstPad *pad,
GstFormat src_format, gint64 src_value,
typedef gboolean (*GstPadConvertFunction) (GstPad *pad,
GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value);
typedef gboolean (*GstPadQueryFunction) (GstPad *pad, GstQueryType type,
GstFormat *format, gint64 *value);
GstFormat *format, gint64 *value);
typedef GList* (*GstPadIntLinkFunction) (GstPad *pad);
typedef const GstFormat* (*GstPadFormatsFunction) (GstPad *pad);
typedef const GstEventMask* (*GstPadEventMaskFunction) (GstPad *pad);
typedef const GstQueryType* (*GstPadQueryTypeFunction) (GstPad *pad);
typedef GstPadLinkReturn (*GstPadLinkFunction) (GstPad *pad, const GstCaps *caps);
typedef void (*GstPadUnlinkFunction) (GstPad *pad);
typedef GstCaps* (*GstPadGetCapsFunction) (GstPad *pad);
typedef GstCaps* (*GstPadFixateFunction) (GstPad *pad, const GstCaps *caps);
typedef GstBuffer* (*GstPadBufferAllocFunction) (GstPad *pad, guint64 offset, guint size);
typedef GstPadLinkReturn (*GstPadLinkFunction) (GstPad *pad, const GstCaps *caps);
typedef void (*GstPadUnlinkFunction) (GstPad *pad);
typedef GstCaps* (*GstPadGetCapsFunction) (GstPad *pad);
typedef GstCaps* (*GstPadFixateFunction) (GstPad *pad, const GstCaps *caps);
typedef GstBuffer* (*GstPadBufferAllocFunction) (GstPad *pad, guint64 offset, guint size);
typedef gboolean (*GstPadDispatcherFunction) (GstPad *pad, gpointer data);
typedef gboolean (*GstPadDispatcherFunction) (GstPad *pad, gpointer data);
typedef enum {
GST_PAD_UNKNOWN,
@ -146,11 +146,11 @@ typedef enum {
} GstPadFlags;
struct _GstPad {
GstObject object;
GstObject object;
gpointer element_private;
gpointer element_private;
GstPadTemplate *padtemplate; /* the template for this pad */
GstPadTemplate *padtemplate; /* the template for this pad */
gpointer _gst_reserved[GST_PADDING];
};
@ -162,33 +162,33 @@ struct _GstPadClass {
};
struct _GstRealPad {
GstPad pad;
GstPad pad;
/* the pad capabilities */
GstCaps *caps;
GstCaps *caps;
GstPadFixateFunction appfixatefunc;
GstCaps *appfilter;
GstPadGetCapsFunction getcapsfunc;
GstCaps *appfilter;
GstPadGetCapsFunction getcapsfunc;
GstPadFixateFunction fixatefunc;
GstPadDirection direction;
GstPadLinkFunction linkfunc;
GstPadUnlinkFunction unlinkfunc;
GstRealPad *peer;
GstPadDirection direction;
gpointer sched_private;
GstPadLinkFunction linkfunc;
GstPadUnlinkFunction unlinkfunc;
GstRealPad *peer;
gpointer sched_private;
/* data transport functions */
GstPadChainFunction chainfunc;
GstPadChainFunction chainhandler;
GstPadGetFunction getfunc;
GstPadChainFunction chainfunc;
GstPadChainFunction chainhandler;
GstPadGetFunction getfunc;
GstPadGetFunction gethandler;
GstPadEventFunction eventfunc;
GstPadEventFunction eventhandler;
GstPadEventMaskFunction eventmaskfunc;
GList *ghostpads;
GList *ghostpads;
/* query/convert/formats functions */
GstPadConvertFunction convertfunc;
@ -199,7 +199,7 @@ struct _GstRealPad {
GstPadBufferAllocFunction bufferallocfunc;
GstProbeDispatcher probedisp;
GstProbeDispatcher probedisp;
GstPadLink *link;
GstCaps *explicit_caps;
@ -208,13 +208,13 @@ struct _GstRealPad {
};
struct _GstRealPadClass {
GstPadClass parent_class;
GstPadClass parent_class;
/* signal callbacks */
void (*caps_nego_failed) (GstPad *pad, GstCaps *caps);
void (*linked) (GstPad *pad, GstPad *peer);
void (*unlinked) (GstPad *pad, GstPad *peer);
void (*linked) (GstPad *pad, GstPad *peer);
void (*unlinked) (GstPad *pad, GstPad *peer);
GstPadFixateFunction appfixatefunc;
gpointer _gst_reserved[GST_PADDING];
@ -399,12 +399,12 @@ G_CONST_RETURN GstEventMask*
/* pad links */
void gst_pad_set_link_function (GstPad *pad, GstPadLinkFunction link);
gboolean gst_pad_can_link (GstPad *srcpad, GstPad *sinkpad);
gboolean gst_pad_can_link_filtered (GstPad *srcpad, GstPad *sinkpad, const GstCaps *filtercaps);
gboolean gst_pad_can_link (GstPad *srcpad, GstPad *sinkpad);
gboolean gst_pad_can_link_filtered (GstPad *srcpad, GstPad *sinkpad, const GstCaps *filtercaps);
void gst_pad_set_unlink_function (GstPad *pad, GstPadUnlinkFunction unlink);
gboolean gst_pad_link (GstPad *srcpad, GstPad *sinkpad);
gboolean gst_pad_link_filtered (GstPad *srcpad, GstPad *sinkpad, const GstCaps *filtercaps);
gboolean gst_pad_link (GstPad *srcpad, GstPad *sinkpad);
gboolean gst_pad_link_filtered (GstPad *srcpad, GstPad *sinkpad, const GstCaps *filtercaps);
void gst_pad_unlink (GstPad *srcpad, GstPad *sinkpad);
gboolean gst_pad_is_linked (GstPad *pad);
@ -421,11 +421,11 @@ gboolean gst_pad_check_compatibility (GstPad *srcpad, GstPad *sinkpad);
void gst_pad_set_getcaps_function (GstPad *pad, GstPadGetCapsFunction getcaps);
void gst_pad_set_fixate_function (GstPad *pad, GstPadFixateFunction fixate);
GstCaps * gst_pad_proxy_getcaps (GstPad *pad);
GstCaps * gst_pad_proxy_getcaps (GstPad *pad);
GstPadLinkReturn gst_pad_proxy_pad_link (GstPad *pad, const GstCaps *caps);
GstCaps * gst_pad_proxy_fixate (GstPad *pad, const GstCaps *caps);
#ifndef GST_DISABLE_DEPRECATED
GstPadLinkReturn gst_pad_proxy_link (GstPad *pad, const GstCaps *caps);
GstPadLinkReturn gst_pad_proxy_link (GstPad *pad, const GstCaps *caps);
#endif
gboolean gst_pad_set_explicit_caps (GstPad *pad, const GstCaps *caps);
void gst_pad_use_explicit_caps (GstPad *pad);
@ -436,10 +436,10 @@ gboolean gst_pad_perform_negotiate (GstPad *srcpad, GstPad *sinkpad);
GstPadLinkReturn gst_pad_renegotiate (GstPad *pad);
void gst_pad_unnegotiate (GstPad *pad);
gboolean gst_pad_try_relink_filtered (GstPad *srcpad, GstPad *sinkpad, const GstCaps *filtercaps);
GstCaps* gst_pad_get_allowed_caps (GstPad *pad);
GstCaps* gst_pad_get_allowed_caps (GstPad *pad);
void gst_pad_caps_change_notify (GstPad *pad);
gboolean gst_pad_recover_caps_error (GstPad *pad, const GstCaps *allowed);
gboolean gst_pad_recover_caps_error (GstPad *pad, const GstCaps *allowed);
/* data passing functions */
void gst_pad_push (GstPad *pad, GstData *data);
@ -457,7 +457,7 @@ GstData * gst_pad_collect (GstPad **selected, GstPad *pad, ...);
GstData * gst_pad_collect_valist (GstPad **selected, GstPad *pad, va_list varargs);
/* convert/query/format functions */
void gst_pad_set_formats_function (GstPad *pad,
void gst_pad_set_formats_function (GstPad *pad,
GstPadFormatsFunction formats);
G_CONST_RETURN GstFormat*
gst_pad_get_formats (GstPad *pad);
@ -465,11 +465,11 @@ G_CONST_RETURN GstFormat*
gst_pad_get_formats_default (GstPad *pad);
void gst_pad_set_convert_function (GstPad *pad, GstPadConvertFunction convert);
gboolean gst_pad_convert (GstPad *pad,
GstFormat src_format, gint64 src_value,
gboolean gst_pad_convert (GstPad *pad,
GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value);
gboolean gst_pad_convert_default (GstPad *pad,
GstFormat src_format, gint64 src_value,
gboolean gst_pad_convert_default (GstPad *pad,
GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value);
void gst_pad_set_query_function (GstPad *pad, GstPadQueryFunction query);
@ -480,21 +480,21 @@ G_CONST_RETURN GstQueryType*
gst_pad_get_query_types_default (GstPad *pad);
gboolean gst_pad_query (GstPad *pad, GstQueryType type,
GstFormat *format, gint64 *value);
gboolean gst_pad_query_default (GstPad *pad, GstQueryType type,
GstFormat *format, gint64 *value);
gboolean gst_pad_query_default (GstPad *pad, GstQueryType type,
GstFormat *format, gint64 *value);
void gst_pad_set_internal_link_function (GstPad *pad, GstPadIntLinkFunction intlink);
GList* gst_pad_get_internal_links (GstPad *pad);
GList* gst_pad_get_internal_links_default (GstPad *pad);
GList* gst_pad_get_internal_links_default (GstPad *pad);
/* misc helper functions */
gboolean gst_pad_dispatcher (GstPad *pad, GstPadDispatcherFunction dispatch,
gboolean gst_pad_dispatcher (GstPad *pad, GstPadDispatcherFunction dispatch,
gpointer data);
#define gst_pad_add_probe(pad, probe) \
(gst_probe_dispatcher_add_probe (&(GST_REAL_PAD (pad)->probedisp), probe))
(gst_probe_dispatcher_add_probe (&(GST_PAD_REALIZE (pad)->probedisp), probe))
#define gst_pad_remove_probe(pad, probe) \
(gst_probe_dispatcher_remove_probe (&(GST_REAL_PAD (pad)->probedisp), probe))
(gst_probe_dispatcher_remove_probe (&(GST_PAD_REALIZE (pad)->probedisp), probe))
#ifndef GST_DISABLE_LOADSAVE
void gst_pad_load_and_link (xmlNodePtr self, GstObject *parent);
@ -509,7 +509,7 @@ GstPad* gst_ghost_pad_new (const gchar *name, GstPad *pad);
GType gst_pad_template_get_type (void);
GstPadTemplate* gst_pad_template_new (const gchar *name_template,
GstPadDirection direction, GstPadPresence presence,
GstPadDirection direction, GstPadPresence presence,
GstCaps *caps);
GstPadTemplate * gst_static_pad_template_get (GstStaticPadTemplate *pad_template);
@ -519,16 +519,14 @@ const GstCaps* gst_pad_template_get_caps_by_name (GstPadTemplate *templ, const
#endif
#ifndef GST_DISABLE_LOADSAVE
xmlNodePtr gst_ghost_pad_save_thyself (GstPad *pad,
xmlNodePtr parent);
xmlNodePtr gst_ghost_pad_save_thyself (GstPad *pad,
xmlNodePtr parent);
#endif
/* for schedulers only */
void gst_pad_call_chain_function (GstPad *pad, GstData *data);
GstData * gst_pad_call_get_function (GstPad *pad);
G_END_DECLS
#endif /* __GST_PAD_H__ */

16
gst/gstprobe.c
View file

@ -23,6 +23,9 @@
#include "gst_private.h"
#include "gstprobe.h"
GST_DEBUG_CATEGORY_STATIC (debug_probe);
#define GST_CAT_DEFAULT debug_probe
static GstProbe *
_gst_probe_copy (const GstProbe * src)
{
@ -37,9 +40,12 @@ gst_probe_get_type (void)
if (!gst_probe_type) {
gst_probe_type = g_boxed_type_register_static ("GstProbe",
(GBoxedCopyFunc) _gst_probe_copy, (GBoxedFreeFunc) gst_probe_destroy);
GST_DEBUG_CATEGORY_INIT (debug_probe, "GST_PROBE",
GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, "pad probes");
}
return gst_probe_type;
}
/**
@ -66,6 +72,8 @@ gst_probe_new (gboolean single_shot,
probe->callback = callback;
probe->user_data = user_data;
GST_DEBUG ("created probe %p", probe);
return probe;
}
@ -103,6 +111,8 @@ gst_probe_perform (GstProbe * probe, GstData ** data)
g_return_val_if_fail (probe, res);
GST_DEBUG ("performing probe %p", probe);
if (probe->callback)
res = probe->callback (probe, data, probe->user_data);
@ -193,6 +203,8 @@ gst_probe_dispatcher_add_probe (GstProbeDispatcher * disp, GstProbe * probe)
g_return_if_fail (disp);
g_return_if_fail (probe);
GST_DEBUG ("adding probe %p to dispatcher %p", probe, disp);
disp->probes = g_slist_prepend (disp->probes, probe);
}
@ -209,6 +221,8 @@ gst_probe_dispatcher_remove_probe (GstProbeDispatcher * disp, GstProbe * probe)
g_return_if_fail (disp);
g_return_if_fail (probe);
GST_DEBUG ("removing probe %p from dispatcher %p", probe, disp);
disp->probes = g_slist_remove (disp->probes, probe);
}
@ -229,6 +243,8 @@ gst_probe_dispatcher_dispatch (GstProbeDispatcher * disp, GstData ** data)
g_return_val_if_fail (disp, res);
GST_DEBUG ("dispatching data %p on dispatcher %p", *data, disp);
walk = disp->probes;
while (walk) {
GstProbe *probe = (GstProbe *) walk->data;