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basetransform: Refactor caps suggestion on pad_alloc

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Refactor the handling of sink suggestion caps variable
so that it always has a ref to the caps it points to.

Makes the code clearer.
This commit is contained in:
Thiago Santos 2010-03-28 20:55:09 -03:00
parent 477a5d0939
commit 7558fed51b
1 changed files with 8 additions and 5 deletions
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13
libs/gst/base/gstbasetransform.c
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@ -1524,7 +1524,7 @@ gst_base_transform_buffer_alloc (GstPad * pad, guint64 offset, guint size,
GstBaseTransformPrivate *priv;
GstFlowReturn res;
gboolean proxy, suggest, same_caps;
GstCaps *sink_suggest;
GstCaps *sink_suggest = NULL;
guint size_suggest;
trans = GST_BASE_TRANSFORM (gst_pad_get_parent (pad));
@ -1549,7 +1549,7 @@ gst_base_transform_buffer_alloc (GstPad * pad, guint64 offset, guint size,
if (same_caps) {
/* we have seen this before, see below if we need to proxy */
GST_DEBUG_OBJECT (trans, "have old caps %p, size %u", caps, size);
sink_suggest = caps;
gst_caps_replace (&sink_suggest, caps);
size_suggest = size;
suggest = FALSE;
} else {
@ -1568,7 +1568,7 @@ gst_base_transform_buffer_alloc (GstPad * pad, guint64 offset, guint size,
} else {
GST_DEBUG_OBJECT (trans, "using caps %p %" GST_PTR_FORMAT " size %u",
caps, caps, size);
sink_suggest = caps;
gst_caps_replace (&sink_suggest, caps);
size_suggest = size;
suggest = FALSE;
}
@ -1709,9 +1709,12 @@ gst_base_transform_buffer_alloc (GstPad * pad, guint64 offset, guint size,
"doing suggestion of size %u, caps %p %" GST_PTR_FORMAT, size_suggest,
sink_suggest, sink_suggest);
GST_BUFFER_CAPS (*buf) = sink_suggest;
sink_suggest = NULL;
}
gst_object_unref (trans);
if (sink_suggest)
gst_caps_unref (sink_suggest);
return res;
@ -1719,7 +1722,7 @@ gst_base_transform_buffer_alloc (GstPad * pad, guint64 offset, guint size,
alloc_failed:
{
GST_DEBUG_OBJECT (trans, "pad alloc failed: %s", gst_flow_get_name (res));
if (suggest)
if (sink_suggest)
gst_caps_unref (sink_suggest);
gst_object_unref (trans);
return res;
@ -1727,7 +1730,7 @@ alloc_failed:
not_supported:
{
GST_DEBUG_OBJECT (trans, "pad alloc with unsupported caps");
if (suggest)
if (sink_suggest)
gst_caps_unref (sink_suggest);
gst_object_unref (trans);
return GST_FLOW_NOT_NEGOTIATED;