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uridecodebin: expose "autoplug-sort" signal

Browse source 
It is a proxy of the decodebin2's one, and was missing
in the previous code.

See bug #642433.
This commit is contained in:
tskd2@yahoo.co.jp 2011-02-16 20:14:25 +09:00 committed by Sebastian Dröge
parent 1351597381
commit 0641eabeb2
1 changed files with 76 additions and 0 deletions
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76
gst/playback/gsturidecodebin.c
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@ -119,6 +119,9 @@ struct _GstURIDecodeBinClass
/* signal fired to get a list of factories to try to autoplug */
GValueArray *(*autoplug_factories) (GstElement * element, GstPad * pad,
GstCaps * caps);
/* signal fired to sort the factories */
GValueArray *(*autoplug_sort) (GstElement * element, GstPad * pad,
GstCaps * caps, GValueArray * factories);
/* signal fired to select from the proposed list of factories */
GstAutoplugSelectResult (*autoplug_select) (GstElement * element,
GstPad * pad, GstCaps * caps, GValueArray * factories);
@ -145,6 +148,7 @@ enum
SIGNAL_AUTOPLUG_FACTORIES,
SIGNAL_AUTOPLUG_SELECT,
SIGNAL_DRAINED,
SIGNAL_AUTOPLUG_SORT,
LAST_SIGNAL
};
@ -250,6 +254,22 @@ _gst_select_accumulator (GSignalInvocationHint * ihint,
return FALSE;
}
static gboolean
_gst_array_hasvalue_accumulator (GSignalInvocationHint * ihint,
GValue * return_accu, const GValue * handler_return, gpointer dummy)
{
gpointer array;
array = g_value_get_boxed (handler_return);
if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP))
g_value_set_boxed (return_accu, array);
if (array != NULL)
return FALSE;
return TRUE;
}
static gboolean
gst_uri_decode_bin_autoplug_continue (GstElement * element, GstPad * pad,
GstCaps * caps)
@ -309,6 +329,19 @@ gst_uri_decode_bin_autoplug_factories (GstElement * element, GstPad * pad,
return result;
}
static GValueArray *
gst_uri_decode_bin_autoplug_sort (GstElement * element, GstPad * pad,
GstCaps * caps, GValueArray * factories)
{
GValueArray *result;
result = g_value_array_copy (factories);
GST_DEBUG_OBJECT (element, "autoplug-sort returns %p", result);
/* return input */
return result;
}
static void
gst_uri_decode_bin_class_init (GstURIDecodeBinClass * klass)
@ -484,6 +517,31 @@ gst_uri_decode_bin_class_init (GstURIDecodeBinClass * klass)
gst_play_marshal_BOXED__OBJECT_BOXED, G_TYPE_VALUE_ARRAY, 2,
GST_TYPE_PAD, GST_TYPE_CAPS);
/**
* GstURIDecodeBin::autoplug-sort:
* @bin: The decodebin
* @pad: The #GstPad.
* @caps: The #GstCaps.
* @factories: A #GValueArray of possible #GstElementFactory to use.
*
* Once decodebin2 has found the possible #GstElementFactory objects to try
* for @caps on @pad, this signal is emited. The purpose of the signal is for
* the application to perform additional sorting or filtering on the element
* factory array.
*
* The callee should copy and modify @factories.
*
* Returns: A new sorted array of #GstElementFactory objects.
*
* Since: 0.10.33
*/
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SORT] =
g_signal_new ("autoplug-sort", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, autoplug_sort),
_gst_array_hasvalue_accumulator, NULL,
gst_play_marshal_BOXED__OBJECT_BOXED_BOXED, G_TYPE_VALUE_ARRAY, 3,
GST_TYPE_PAD, GST_TYPE_CAPS, G_TYPE_VALUE_ARRAY);
/**
* GstURIDecodeBin::autoplug-select:
* @pad: The #GstPad.
@ -539,6 +597,7 @@ gst_uri_decode_bin_class_init (GstURIDecodeBinClass * klass)
GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_continue);
klass->autoplug_factories =
GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_factories);
klass->autoplug_sort = GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_sort);
}
static void
@ -1369,6 +1428,21 @@ proxy_autoplug_factories_signal (GstElement * element, GstPad * pad,
return result;
}
static GValueArray *
proxy_autoplug_sort_signal (GstElement * element, GstPad * pad,
GstCaps * caps, GValueArray * factories, GstURIDecodeBin * dec)
{
GValueArray *result;
g_signal_emit (dec,
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SORT], 0, pad, caps,
factories, &result);
GST_DEBUG_OBJECT (dec, "autoplug-sort returned %p", result);
return result;
}
static GstAutoplugSelectResult
proxy_autoplug_select_signal (GstElement * element, GstPad * pad,
GstCaps * caps, GstElementFactory * factory, GstURIDecodeBin * dec)
@ -1420,6 +1494,8 @@ make_decoder (GstURIDecodeBin * decoder)
G_CALLBACK (proxy_autoplug_continue_signal), decoder);
g_signal_connect (decodebin, "autoplug-factories",
G_CALLBACK (proxy_autoplug_factories_signal), decoder);
g_signal_connect (decodebin, "autoplug-sort",
G_CALLBACK (proxy_autoplug_sort_signal), decoder);
g_signal_connect (decodebin, "autoplug-select",
G_CALLBACK (proxy_autoplug_select_signal), decoder);
g_signal_connect (decodebin, "drained",