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gst/gstpad.c: Fix accumulator, add default value by using _emitv() instead of _emit() for signal emission.

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Original commit message from CVS:
* gst/gstpad.c: (_gst_do_pass_data_accumulator),
(silly_return_true_function), (gst_pad_class_init),
(gst_pad_emit_have_data_signal), (gst_pad_chain), (gst_pad_push),
(gst_pad_get_range), (gst_pad_pull_range), (gst_pad_push_event),
(gst_pad_send_event):
Fix accumulator, add default value by using _emitv() instead
of _emit() for signal emission.
This commit is contained in:
Ronald S. Bultje 2005-06-29 19:20:07 +00:00
parent af3acddad9
commit a220106c57
2 changed files with 53 additions and 11 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2005-06-29 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* gst/gstpad.c: (_gst_do_pass_data_accumulator),
(silly_return_true_function), (gst_pad_class_init),
(gst_pad_emit_have_data_signal), (gst_pad_chain), (gst_pad_push),
(gst_pad_get_range), (gst_pad_pull_range), (gst_pad_push_event),
(gst_pad_send_event):
Fix accumulator, add default value by using _emitv() instead
of _emit() for signal emission.
2005-06-29 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* docs/manual/advanced-dataaccess.xml:

54
gst/gstpad.c
View file

@ -125,16 +125,20 @@ static gboolean
_gst_do_pass_data_accumulator (GSignalInvocationHint * ihint,
GValue * return_accu, const GValue * handler_return, gpointer dummy)
{
if (ihint->run_type == G_SIGNAL_RUN_FIRST) {
gboolean ret = g_value_get_boolean (handler_return);
g_value_set_boolean (return_accu, ret);
return ret;
if (!g_value_get_boolean (handler_return)) {
g_value_set_boolean (return_accu, FALSE);
return FALSE;
}
return TRUE;
}
static gboolean
silly_return_true_function (GstPad * pad, GstMiniObject * o)
{
return TRUE;
}
static void
gst_pad_class_init (GstPadClass * klass)
{
@ -188,6 +192,7 @@ gst_pad_class_init (GstPadClass * klass)
gstobject_class->save_thyself = GST_DEBUG_FUNCPTR (gst_pad_save_thyself);
#endif
gstobject_class->path_string_separator = ".";
klass->have_data = silly_return_true_function;
}
static void
@ -2666,6 +2671,33 @@ handle_pad_block (GstPad * pad)
* Data passing functions
*/
static gboolean
gst_pad_emit_have_data_signal (GstPad * pad, GstMiniObject * obj)
{
GValue ret = { 0 };
GValue args[2] = { {0}, {0} };
gboolean res;
/* init */
g_value_init (&ret, G_TYPE_BOOLEAN);
g_value_set_boolean (&ret, TRUE);
g_value_init (&args[0], GST_TYPE_PAD);
g_value_set_object (&args[0], pad);
g_value_init (&args[1], G_TYPE_POINTER);
g_value_set_pointer (&args[1], obj);
/* actually emit */
g_signal_emitv (args, gst_pad_signals[PAD_HAVE_DATA], 0, &ret);
res = g_value_get_boolean (&ret);
/* clean up */
g_value_unset (&ret);
g_value_unset (&args[0]);
g_value_unset (&args[1]);
return res;
}
/**
* gst_pad_chain:
* @pad: a sink #GstPad.
@ -2717,7 +2749,7 @@ gst_pad_chain (GstPad * pad, GstBuffer * buffer)
goto no_function;
if (g_atomic_int_get (&pad->emit_buffer_signals) >= 1) {
g_signal_emit (pad, gst_pad_signals[PAD_HAVE_DATA], 0, buffer, &do_pass);
do_pass = gst_pad_emit_have_data_signal (pad, GST_MINI_OBJECT (buffer));
}
if (do_pass) {
@ -2801,7 +2833,7 @@ gst_pad_push (GstPad * pad, GstBuffer * buffer)
GST_UNLOCK (pad);
if (g_atomic_int_get (&pad->emit_buffer_signals) >= 1) {
g_signal_emit (pad, gst_pad_signals[PAD_HAVE_DATA], 0, buffer, &do_pass);
do_pass = gst_pad_emit_have_data_signal (pad, GST_MINI_OBJECT (buffer));
}
if (do_pass) {
@ -2939,7 +2971,7 @@ gst_pad_get_range (GstPad * pad, guint64 offset, guint size,
if (ret == GST_FLOW_OK && g_atomic_int_get (&pad->emit_buffer_signals) >= 1) {
gboolean do_pass = TRUE;
g_signal_emit (pad, gst_pad_signals[PAD_HAVE_DATA], 0, *buffer, &do_pass);
do_pass = gst_pad_emit_have_data_signal (pad, GST_MINI_OBJECT (*buffer));
if (!do_pass) {
GST_DEBUG ("Dropping data after FALSE probe return");
gst_buffer_unref (*buffer);
@ -3013,7 +3045,7 @@ gst_pad_pull_range (GstPad * pad, guint64 offset, guint size,
if (ret == GST_FLOW_OK && g_atomic_int_get (&pad->emit_buffer_signals) >= 1) {
gboolean do_pass = TRUE;
g_signal_emit (pad, gst_pad_signals[PAD_HAVE_DATA], 0, *buffer, &do_pass);
do_pass = gst_pad_emit_have_data_signal (pad, GST_MINI_OBJECT (*buffer));
if (!do_pass) {
GST_DEBUG ("Dropping data after FALSE probe return");
gst_buffer_unref (*buffer);
@ -3065,7 +3097,7 @@ gst_pad_push_event (GstPad * pad, GstEvent * event)
GST_UNLOCK (pad);
if (g_atomic_int_get (&pad->emit_event_signals) >= 1) {
g_signal_emit (pad, gst_pad_signals[PAD_HAVE_DATA], 0, event, &do_pass);
do_pass = gst_pad_emit_have_data_signal (pad, GST_MINI_OBJECT (event));
}
if (do_pass) {
@ -3145,7 +3177,7 @@ gst_pad_send_event (GstPad * pad, GstEvent * event)
GST_UNLOCK (pad);
if (g_atomic_int_get (&pad->emit_event_signals) >= 1) {
g_signal_emit (pad, gst_pad_signals[PAD_HAVE_DATA], 0, event, &do_pass);
do_pass = gst_pad_emit_have_data_signal (pad, GST_MINI_OBJECT (event));
}
if (do_pass) {