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pad: remove GstPadFixateCapsFunction

Browse source 
The fixate caps function was not used externally and we have vmethods in the
base classes where it is needed.
Update some docs.
simplify some fixate functions in the base classes. Also pass the untruncated
caps to the vmethod.
This commit is contained in:
Wim Taymans 2011-11-10 10:58:42 +01:00
parent b133bea426
commit 37318a8cd2
10 changed files with 54 additions and 211 deletions
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18
docs/gst/gstreamer-sections.txt
View file

@ -734,7 +734,6 @@ gst_element_message_full
gst_element_post_message
<SUBSECTION element-query>
gst_element_get_query_types
gst_element_query
gst_element_query_convert
gst_element_query_position
@ -1044,7 +1043,6 @@ gst_ghost_pad_internal_activate_pull_default
gst_proxy_pad_get_internal
gst_proxy_pad_query_type_default
gst_proxy_pad_event_default
gst_proxy_pad_query_default
gst_proxy_pad_iterate_internal_links_default
@ -1052,8 +1050,6 @@ gst_proxy_pad_chain_default
gst_proxy_pad_chain_list_default
gst_proxy_pad_getrange_default
gst_proxy_pad_getcaps_default
gst_proxy_pad_acceptcaps_default
gst_proxy_pad_fixatecaps_default
gst_proxy_pad_unlink_default
<SUBSECTION Standard>
GstGhostPadClass
@ -1616,7 +1612,6 @@ GstPadActivateMode
GstPadProbeReturn
GstPadProbeType
GST_PAD_PROBE_TYPE_BLOCKING
GST_PAD_PROBE_TYPE_DATA
GST_PAD_PROBE_TYPE_SCHEDULING
<SUBSECTION Application>
@ -1684,17 +1679,11 @@ gst_pad_set_unlink_function
GstPadUnlinkFunction
gst_pad_accept_caps
gst_pad_set_acceptcaps_function
GstPadAcceptCapsFunction
gst_pad_set_getcaps_function
GstPadGetCapsFunction
gst_pad_proxy_getcaps
gst_pad_fixate_caps
gst_pad_set_fixatecaps_function
GstPadFixateCapsFunction
gst_pad_peer_accept_caps
gst_pad_set_activate_function
@ -1727,11 +1716,6 @@ gst_pad_query_peer_duration
gst_pad_query_peer_convert
gst_pad_set_query_function
GstPadQueryFunction
gst_pad_set_query_type_function
GstPadQueryTypeFunction
gst_pad_get_query_types
gst_pad_get_query_types_default
gst_pad_set_iterate_internal_links_function
GstPadIterIntLinkFunction
gst_pad_iterate_internal_links
@ -1754,10 +1738,8 @@ gst_pad_set_active
GST_PAD_GET_STREAM_LOCK
GST_PAD_STREAM_LOCK
GST_PAD_STREAM_LOCK_FULL
GST_PAD_STREAM_TRYLOCK
GST_PAD_STREAM_UNLOCK
GST_PAD_STREAM_UNLOCK_FULL
<SUBSECTION Standard>
GstPadClass

35
gst/gstghostpad.c
View file

@ -369,39 +369,6 @@ gst_proxy_pad_acceptcaps_default (GstPad * pad, GstCaps * caps)
return res;
}
/**
* gst_proxy_pad_fixatecaps_default:
* @pad: a #GstPad to fixate
* @caps: the #GstCaps to fixate
*
* Invoke the default fixatecaps function of the proxy pad.
*
* Since: 0.10.36
*/
void
gst_proxy_pad_fixatecaps_default (GstPad * pad, GstCaps * caps)
{
GstPad *target;
g_return_if_fail (GST_IS_PROXY_PAD (pad));
g_return_if_fail (GST_IS_CAPS (caps));
if (!(target = gst_proxy_pad_get_target (pad)))
goto no_target;
gst_pad_fixate_caps (target, caps);
gst_object_unref (target);
return;
/* ERRORS */
no_target:
{
GST_DEBUG_OBJECT (pad, "no target");
return;
}
}
static GstPad *
gst_proxy_pad_get_target (GstPad * pad)
{
@ -472,7 +439,6 @@ gst_proxy_pad_class_init (GstProxyPadClass * klass)
GST_DEBUG_REGISTER_FUNCPTR (gst_proxy_pad_iterate_internal_links_default);
GST_DEBUG_REGISTER_FUNCPTR (gst_proxy_pad_getcaps_default);
GST_DEBUG_REGISTER_FUNCPTR (gst_proxy_pad_acceptcaps_default);
GST_DEBUG_REGISTER_FUNCPTR (gst_proxy_pad_fixatecaps_default);
GST_DEBUG_REGISTER_FUNCPTR (gst_proxy_pad_unlink_default);
GST_DEBUG_REGISTER_FUNCPTR (gst_proxy_pad_chain_default);
GST_DEBUG_REGISTER_FUNCPTR (gst_proxy_pad_chain_list_default);
@ -493,7 +459,6 @@ gst_proxy_pad_init (GstProxyPad * ppad)
gst_proxy_pad_iterate_internal_links_default);
gst_pad_set_getcaps_function (pad, gst_proxy_pad_getcaps_default);
gst_pad_set_fixatecaps_function (pad, gst_proxy_pad_fixatecaps_default);
gst_pad_set_unlink_function (pad, gst_proxy_pad_unlink_default);
}

1
gst/gstghostpad.h
View file

@ -70,7 +70,6 @@ GstFlowReturn gst_proxy_pad_chain_list_default (GstPad *pad, G
GstFlowReturn gst_proxy_pad_getrange_default (GstPad *pad, guint64 offset, guint size, GstBuffer **buffer);
GstCaps* gst_proxy_pad_getcaps_default (GstPad *pad, GstCaps * filter);
gboolean gst_proxy_pad_acceptcaps_default (GstPad *pad, GstCaps *caps);
void gst_proxy_pad_fixatecaps_default (GstPad *pad, GstCaps *caps);
void gst_proxy_pad_unlink_default (GstPad * pad);
#define GST_TYPE_GHOST_PAD (gst_ghost_pad_get_type ())

57
gst/gstpad.c
View file

@ -142,7 +142,6 @@ static void gst_pad_get_property (GObject * object, guint prop_id,
static GstCaps *gst_pad_get_caps_unlocked (GstPad * pad, GstCaps * filter);
static void gst_pad_set_pad_template (GstPad * pad, GstPadTemplate * templ);
static gboolean gst_pad_activate_default (GstPad * pad);
static void gst_pad_fixate_caps_default (GstPad * pad, GstCaps * caps);
static GstFlowReturn gst_pad_chain_list_default (GstPad * pad,
GstBufferList * list);
@ -302,7 +301,6 @@ gst_pad_class_init (GstPadClass * klass)
GST_DEBUG_REGISTER_FUNCPTR (gst_pad_query_default);
GST_DEBUG_REGISTER_FUNCPTR (gst_pad_iterate_internal_links_default);
GST_DEBUG_REGISTER_FUNCPTR (gst_pad_chain_list_default);
GST_DEBUG_REGISTER_FUNCPTR (gst_pad_fixate_caps_default);
}
static void
@ -316,7 +314,6 @@ gst_pad_init (GstPad * pad)
GST_PAD_EVENTFUNC (pad) = gst_pad_event_default;
GST_PAD_QUERYFUNC (pad) = gst_pad_query_default;
GST_PAD_ITERINTLINKFUNC (pad) = gst_pad_iterate_internal_links_default;
GST_PAD_FIXATECAPSFUNC (pad) = gst_pad_fixate_caps_default;
GST_PAD_CHAINLISTFUNC (pad) = gst_pad_chain_list_default;
GST_PAD_SET_FLUSHING (pad);
@ -1542,26 +1539,6 @@ gst_pad_set_getcaps_function (GstPad * pad, GstPadGetCapsFunction getcaps)
GST_DEBUG_FUNCPTR_NAME (getcaps));
}
/**
* gst_pad_set_fixatecaps_function:
* @pad: a #GstPad.
* @fixatecaps: the #GstPadFixateCapsFunction to set.
*
* Sets the given fixatecaps function for the pad. The fixatecaps function
* will be called whenever the default values for a GstCaps needs to be
* filled in.
*/
void
gst_pad_set_fixatecaps_function (GstPad * pad,
GstPadFixateCapsFunction fixatecaps)
{
g_return_if_fail (GST_IS_PAD (pad));
GST_PAD_FIXATECAPSFUNC (pad) = fixatecaps;
GST_CAT_DEBUG_OBJECT (GST_CAT_PADS, pad, "fixatecapsfunc set to %s",
GST_DEBUG_FUNCPTR_NAME (fixatecaps));
}
/**
* gst_pad_unlink:
* @srcpad: the source #GstPad to unlink.
@ -2389,40 +2366,6 @@ no_peer:
}
}
static void
gst_pad_fixate_caps_default (GstPad * pad, GstCaps * caps)
{
/* default fixation */
gst_caps_fixate (caps);
}
/**
* gst_pad_fixate_caps:
* @pad: a #GstPad to fixate
* @caps: the #GstCaps to fixate
*
* Fixate a caps on the given pad. Modifies the caps in place, so you should
* make sure that the caps are actually writable (see gst_caps_make_writable()).
*/
void
gst_pad_fixate_caps (GstPad * pad, GstCaps * caps)
{
GstPadFixateCapsFunction fixatefunc;
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (caps != NULL);
g_return_if_fail (!gst_caps_is_empty (caps));
g_return_if_fail (!gst_caps_is_any (caps));
if (gst_caps_is_fixed (caps) || gst_caps_is_any (caps))
return;
g_return_if_fail (gst_caps_is_writable (caps));
if (G_LIKELY ((fixatefunc = GST_PAD_FIXATECAPSFUNC (pad))))
fixatefunc (pad, caps);
}
/**
* gst_pad_accept_caps:
* @pad: a #GstPad to check

17
gst/gstpad.h
View file

@ -418,18 +418,6 @@ typedef void (*GstPadUnlinkFunction) (GstPad *pad);
*/
typedef GstCaps* (*GstPadGetCapsFunction) (GstPad *pad, GstCaps *filter);
/**
* GstPadFixateCapsFunction:
* @pad: a #GstPad
* @caps: the #GstCaps to fixate
*
* Given possibly unfixed caps @caps, let @pad use its default preferred
* format to make a fixed caps. @caps should be writable. By default this
* function will pick the first value of any ranges or lists in the caps but
* elements can override this function to perform other behaviour.
*/
typedef void (*GstPadFixateCapsFunction) (GstPad *pad, GstCaps *caps);
/* misc */
/**
* GstPadForwardFunction:
@ -614,7 +602,6 @@ typedef enum {
* @block_cond: conditional to signal pad block
* @probes: installed probes
* @getcapsfunc: function to get caps of the pad
* @fixatecapsfunc: function to fixate caps
* @mode: current activation mode of the pad
* @activatefunc: pad activation function
* @activatepushfunc: function to activate/deactivate pad in push mode
@ -655,7 +642,6 @@ struct _GstPad {
/* the pad capabilities */
GstPadGetCapsFunction getcapsfunc;
GstPadFixateCapsFunction fixatecapsfunc;
GstPadActivateMode mode;
GstPadActivateFunction activatefunc;
@ -729,7 +715,6 @@ struct _GstPadClass {
#define GST_PAD_UNLINKFUNC(pad) (GST_PAD_CAST(pad)->unlinkfunc)
#define GST_PAD_GETCAPSFUNC(pad) (GST_PAD_CAST(pad)->getcapsfunc)
#define GST_PAD_FIXATECAPSFUNC(pad) (GST_PAD_CAST(pad)->fixatecapsfunc)
#define GST_PAD_IS_SRC(pad) (GST_PAD_DIRECTION(pad) == GST_PAD_SRC)
#define GST_PAD_IS_SINK(pad) (GST_PAD_DIRECTION(pad) == GST_PAD_SINK)
@ -865,7 +850,6 @@ GstPad* gst_pad_get_peer (GstPad *pad);
/* capsnego functions */
void gst_pad_set_getcaps_function (GstPad *pad, GstPadGetCapsFunction getcaps);
void gst_pad_set_fixatecaps_function (GstPad *pad, GstPadFixateCapsFunction fixatecaps);
GstCaps* gst_pad_get_pad_template_caps (GstPad *pad);
@ -873,7 +857,6 @@ GstCaps* gst_pad_get_pad_template_caps (GstPad *pad);
GstCaps * gst_pad_get_current_caps (GstPad * pad);
gboolean gst_pad_has_current_caps (GstPad * pad);
GstCaps * gst_pad_get_caps (GstPad * pad, GstCaps *filter);
void gst_pad_fixate_caps (GstPad * pad, GstCaps *caps);
gboolean gst_pad_accept_caps (GstPad * pad, GstCaps *caps);
gboolean gst_pad_set_caps (GstPad * pad, GstCaps *caps);

29
libs/gst/base/gstbasesink.c
View file

@ -400,7 +400,8 @@ static gboolean default_sink_query (GstBaseSink * sink, GstQuery * query);
static gboolean gst_base_sink_negotiate_pull (GstBaseSink * basesink);
static GstCaps *gst_base_sink_pad_getcaps (GstPad * pad, GstCaps * filter);
static void gst_base_sink_pad_fixate (GstPad * pad, GstCaps * caps);
static void gst_base_sink_default_fixate (GstBaseSink * bsink, GstCaps * caps);
static void gst_base_sink_fixate (GstBaseSink * bsink, GstCaps * caps);
/* check if an object was too late */
static gboolean gst_base_sink_is_too_late (GstBaseSink * basesink,
@ -543,6 +544,7 @@ gst_base_sink_class_init (GstBaseSinkClass * klass)
gstelement_class->send_event = GST_DEBUG_FUNCPTR (gst_base_sink_send_event);
gstelement_class->query = GST_DEBUG_FUNCPTR (default_element_query);
klass->fixate = GST_DEBUG_FUNCPTR (gst_base_sink_default_fixate);
klass->get_caps = GST_DEBUG_FUNCPTR (gst_base_sink_get_caps);
klass->set_caps = GST_DEBUG_FUNCPTR (gst_base_sink_set_caps);
klass->get_times = GST_DEBUG_FUNCPTR (gst_base_sink_get_times);
@ -552,7 +554,7 @@ gst_base_sink_class_init (GstBaseSinkClass * klass)
/* Registering debug symbols for function pointers */
GST_DEBUG_REGISTER_FUNCPTR (gst_base_sink_pad_getcaps);
GST_DEBUG_REGISTER_FUNCPTR (gst_base_sink_pad_fixate);
GST_DEBUG_REGISTER_FUNCPTR (gst_base_sink_fixate);
GST_DEBUG_REGISTER_FUNCPTR (gst_base_sink_pad_activate);
GST_DEBUG_REGISTER_FUNCPTR (gst_base_sink_pad_activate_push);
GST_DEBUG_REGISTER_FUNCPTR (gst_base_sink_pad_activate_pull);
@ -606,18 +608,21 @@ gst_base_sink_pad_getcaps (GstPad * pad, GstCaps * filter)
}
static void
gst_base_sink_pad_fixate (GstPad * pad, GstCaps * caps)
gst_base_sink_default_fixate (GstBaseSink * bsink, GstCaps * caps)
{
GST_DEBUG_OBJECT (bsink, "using default caps fixate function");
gst_caps_fixate (caps);
}
static void
gst_base_sink_fixate (GstBaseSink * bsink, GstCaps * caps)
{
GstBaseSinkClass *bclass;
GstBaseSink *bsink;
bsink = GST_BASE_SINK (gst_pad_get_parent (pad));
bclass = GST_BASE_SINK_GET_CLASS (bsink);
if (bclass->fixate)
bclass->fixate (bsink, caps);
gst_object_unref (bsink);
}
static void
@ -635,7 +640,6 @@ gst_base_sink_init (GstBaseSink * basesink, gpointer g_class)
basesink->sinkpad = gst_pad_new_from_template (pad_template, "sink");
gst_pad_set_getcaps_function (basesink->sinkpad, gst_base_sink_pad_getcaps);
gst_pad_set_fixatecaps_function (basesink->sinkpad, gst_base_sink_pad_fixate);
gst_pad_set_activate_function (basesink->sinkpad, gst_base_sink_pad_activate);
gst_pad_set_activatepush_function (basesink->sinkpad,
gst_base_sink_pad_activate_push);
@ -4243,12 +4247,6 @@ gst_base_sink_negotiate_pull (GstBaseSink * basesink)
GST_DEBUG_OBJECT (basesink, "allowed caps: %" GST_PTR_FORMAT, caps);
caps = gst_caps_make_writable (caps);
/* get the first (preferred) format */
gst_caps_truncate (caps);
GST_DEBUG_OBJECT (basesink, "have caps: %" GST_PTR_FORMAT, caps);
if (gst_caps_is_any (caps)) {
GST_DEBUG_OBJECT (basesink, "caps were ANY after fixating, "
"allowing pull()");
@ -4256,8 +4254,9 @@ gst_base_sink_negotiate_pull (GstBaseSink * basesink)
pull() without setcaps() */
result = TRUE;
} else {
caps = gst_caps_make_writable (caps);
/* try to fixate */
gst_pad_fixate_caps (GST_BASE_SINK_PAD (basesink), caps);
gst_base_sink_fixate (basesink, caps);
GST_DEBUG_OBJECT (basesink, "fixated to: %" GST_PTR_FORMAT, caps);
if (gst_caps_is_fixed (caps)) {

29
libs/gst/base/gstbasesrc.c
View file

@ -280,7 +280,7 @@ gst_base_src_get_type (void)
static GstCaps *gst_base_src_getcaps (GstPad * pad, GstCaps * filter);
static void gst_base_src_default_fixate (GstBaseSrc * src, GstCaps * caps);
static void gst_base_src_fixate (GstPad * pad, GstCaps * caps);
static void gst_base_src_fixate (GstBaseSrc * src, GstCaps * caps);
static gboolean gst_base_src_is_random_access (GstBaseSrc * src);
static gboolean gst_base_src_activate_push (GstPad * pad, gboolean active);
@ -368,12 +368,12 @@ gst_base_src_class_init (GstBaseSrcClass * klass)
gstelement_class->send_event = GST_DEBUG_FUNCPTR (gst_base_src_send_event);
klass->negotiate = GST_DEBUG_FUNCPTR (gst_base_src_default_negotiate);
klass->event = GST_DEBUG_FUNCPTR (gst_base_src_default_event);
klass->do_seek = GST_DEBUG_FUNCPTR (gst_base_src_default_do_seek);
klass->query = GST_DEBUG_FUNCPTR (gst_base_src_default_query);
klass->fixate = GST_DEBUG_FUNCPTR (gst_base_src_default_fixate);
klass->prepare_seek_segment =
GST_DEBUG_FUNCPTR (gst_base_src_default_prepare_seek_segment);
klass->fixate = GST_DEBUG_FUNCPTR (gst_base_src_default_fixate);
klass->do_seek = GST_DEBUG_FUNCPTR (gst_base_src_default_do_seek);
klass->query = GST_DEBUG_FUNCPTR (gst_base_src_default_query);
klass->event = GST_DEBUG_FUNCPTR (gst_base_src_default_event);
klass->create = GST_DEBUG_FUNCPTR (gst_base_src_default_create);
klass->alloc = GST_DEBUG_FUNCPTR (gst_base_src_default_alloc);
@ -417,7 +417,6 @@ gst_base_src_init (GstBaseSrc * basesrc, gpointer g_class)
gst_pad_set_query_function (pad, gst_base_src_query);
gst_pad_set_getrange_function (pad, gst_base_src_pad_get_range);
gst_pad_set_getcaps_function (pad, gst_base_src_getcaps);
gst_pad_set_fixatecaps_function (pad, gst_base_src_fixate);
/* hold pointer to pad */
basesrc->srcpad = pad;
@ -841,25 +840,21 @@ gst_base_src_getcaps (GstPad * pad, GstCaps * filter)
}
static void
gst_base_src_default_fixate (GstBaseSrc * src, GstCaps * caps)
gst_base_src_default_fixate (GstBaseSrc * bsrc, GstCaps * caps)
{
GST_DEBUG_OBJECT (src, "using default caps fixate function");
GST_DEBUG_OBJECT (bsrc, "using default caps fixate function");
gst_caps_fixate (caps);
}
static void
gst_base_src_fixate (GstPad * pad, GstCaps * caps)
gst_base_src_fixate (GstBaseSrc * bsrc, GstCaps * caps)
{
GstBaseSrcClass *bclass;
GstBaseSrc *bsrc;
bsrc = GST_BASE_SRC (gst_pad_get_parent (pad));
bclass = GST_BASE_SRC_GET_CLASS (bsrc);
if (bclass->fixate)
bclass->fixate (bsrc, caps);
gst_object_unref (bsrc);
}
static gboolean
@ -2767,11 +2762,6 @@ gst_base_src_default_negotiate (GstBaseSrc * basesrc)
caps = thiscaps;
}
if (caps && !gst_caps_is_empty (caps)) {
caps = gst_caps_make_writable (caps);
/* take first (and best, since they are sorted) possibility */
gst_caps_truncate (caps);
/* now fixate */
GST_DEBUG_OBJECT (basesrc, "have caps: %" GST_PTR_FORMAT, caps);
if (gst_caps_is_any (caps)) {
@ -2780,7 +2770,8 @@ gst_base_src_default_negotiate (GstBaseSrc * basesrc)
* nego is not needed */
result = TRUE;
} else {
gst_pad_fixate_caps (GST_BASE_SRC_PAD (basesrc), caps);
caps = gst_caps_make_writable (caps);
gst_base_src_fixate (basesrc, caps);
GST_DEBUG_OBJECT (basesrc, "fixated to: %" GST_PTR_FORMAT, caps);
if (gst_caps_is_fixed (caps)) {
/* yay, fixed caps, use those then, it's possible that the subclass does

67
libs/gst/base/gstbasetransform.c
View file

@ -317,6 +317,8 @@ static GstFlowReturn gst_base_transform_getrange (GstPad * pad, guint64 offset,
guint length, GstBuffer ** buffer);
static GstFlowReturn gst_base_transform_chain (GstPad * pad,
GstBuffer * buffer);
static void gst_base_transform_default_fixate (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
static GstCaps *gst_base_transform_getcaps (GstPad * pad, GstCaps * filter);
static gboolean gst_base_transform_acceptcaps_default (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps);
@ -371,6 +373,7 @@ gst_base_transform_class_init (GstBaseTransformClass * klass)
gobject_class->finalize = gst_base_transform_finalize;
klass->fixate_caps = GST_DEBUG_FUNCPTR (gst_base_transform_default_fixate);
klass->passthrough_on_same_caps = FALSE;
klass->sink_event = GST_DEBUG_FUNCPTR (gst_base_transform_sink_eventfunc);
klass->src_event = GST_DEBUG_FUNCPTR (gst_base_transform_src_eventfunc);
@ -889,6 +892,14 @@ gst_base_transform_configure_caps (GstBaseTransform * trans, GstCaps * in,
return ret;
}
static void
gst_base_transform_default_fixate (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GST_DEBUG_OBJECT (trans, "using default caps fixate function");
gst_caps_fixate (othercaps);
}
/* given a fixed @caps on @pad, create the best possible caps for the
* other pad.
* @caps must be fixed when calling this function.
@ -1002,52 +1013,22 @@ gst_base_transform_find_transform (GstBaseTransform * trans, GstPad * pad,
if (gst_caps_is_empty (othercaps))
goto no_transform_possible;
/* second attempt at fixation, call the fixate vmethod and
* ultimately call the pad fixate function. */
if (!is_fixed) {
GST_DEBUG_OBJECT (trans,
"trying to fixate %" GST_PTR_FORMAT " on pad %s:%s",
othercaps, GST_DEBUG_PAD_NAME (otherpad));
GST_DEBUG ("have %sfixed caps %" GST_PTR_FORMAT, (is_fixed ? "" : "non-"),
othercaps);
/* since we have no other way to fixate left, we might as well just take
* the first of the caps list and fixate that */
/* second attempt at fixation, call the fixate vmethod */
/* caps could be fixed but the subclass may want to add fields */
if (klass->fixate_caps) {
othercaps = gst_caps_make_writable (othercaps);
/* FIXME: when fixating using the vmethod, it might make sense to fixate
* each of the caps; but Wim doesn't see a use case for that yet */
gst_caps_truncate (othercaps);
if (klass->fixate_caps) {
GST_DEBUG_OBJECT (trans, "trying to fixate %" GST_PTR_FORMAT
" using caps %" GST_PTR_FORMAT
" on pad %s:%s using fixate_caps vmethod", othercaps, caps,
GST_DEBUG_PAD_NAME (otherpad));
klass->fixate_caps (trans, GST_PAD_DIRECTION (pad), caps, othercaps);
is_fixed = gst_caps_is_fixed (othercaps);
}
/* if still not fixed, no other option but to let the default pad fixate
* function do its job */
if (!is_fixed) {
GST_DEBUG_OBJECT (trans, "trying to fixate %" GST_PTR_FORMAT
" on pad %s:%s using gst_pad_fixate_caps", othercaps,
GST_DEBUG_PAD_NAME (otherpad));
gst_pad_fixate_caps (otherpad, othercaps);
is_fixed = gst_caps_is_fixed (othercaps);
}
GST_DEBUG_OBJECT (trans, "calling faxate_caps for %" GST_PTR_FORMAT
" using caps %" GST_PTR_FORMAT " on pad %s:%s", othercaps, caps,
GST_DEBUG_PAD_NAME (otherpad));
/* note that we pass the complete array of structures to the fixate
* function, it needs to truncate itself */
klass->fixate_caps (trans, GST_PAD_DIRECTION (pad), caps, othercaps);
is_fixed = gst_caps_is_fixed (othercaps);
GST_DEBUG_OBJECT (trans, "after fixating %" GST_PTR_FORMAT, othercaps);
} else {
GST_DEBUG ("caps are fixed");
/* else caps are fixed but the subclass may want to add fields */
if (klass->fixate_caps) {
othercaps = gst_caps_make_writable (othercaps);
GST_DEBUG_OBJECT (trans, "doing fixate %" GST_PTR_FORMAT
" using caps %" GST_PTR_FORMAT
" on pad %s:%s using fixate_caps vmethod", othercaps, caps,
GST_DEBUG_PAD_NAME (otherpad));
klass->fixate_caps (trans, GST_PAD_DIRECTION (pad), caps, othercaps);
is_fixed = gst_caps_is_fixed (othercaps);
}
}
/* caps should be fixed now, if not we have to fail. */

8
tests/check/gst/gstpad.c
View file

@ -127,11 +127,15 @@ GST_START_TEST (test_refcount)
/* one for me */
ASSERT_CAPS_REFCOUNT (caps, "caps", 1);
fail_unless (gst_pad_set_caps (src, caps) == TRUE);
/* can't set caps on flushing sinkpad */
fail_if (gst_pad_set_caps (src, caps) == TRUE);
fail_if (gst_pad_set_caps (sink, caps) == TRUE);
/* one for me and one for each set_caps */
ASSERT_CAPS_REFCOUNT (caps, "caps", 3);
ASSERT_CAPS_REFCOUNT (caps, "caps", 1);
gst_pad_set_active (src, TRUE);
fail_unless (gst_pad_set_caps (src, caps) == TRUE);
ASSERT_CAPS_REFCOUNT (caps, "caps", 2);
gst_pad_set_active (sink, TRUE);
fail_unless (gst_pad_set_caps (sink, caps) == TRUE);

4
tools/gst-inspect.c
View file

@ -810,10 +810,6 @@ print_pad_info (GstElement * element)
if (pad->getcapsfunc)
n_print (" Has getcapsfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (pad->getcapsfunc));
if (pad->fixatecapsfunc)
n_print (" Has fixatecapsfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (pad->fixatecapsfunc));
if (pad->padtemplate)
n_print (" Pad Template: '%s'\n", pad->padtemplate->name_template);