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basetrans: improve some comments

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This commit is contained in:
Wim Taymans 2012-10-04 10:01:19 +02:00
parent f78450c62d
commit 664f7141be
1 changed files with 5 additions and 3 deletions
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8
libs/gst/base/gstbasetransform.c
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@ -664,11 +664,12 @@ gst_base_transform_query_caps (GstBaseTransform * trans, GstPad * pad,
templ = gst_pad_get_pad_template_caps (pad); templ = gst_pad_get_pad_template_caps (pad);
otempl = gst_pad_get_pad_template_caps (otherpad); otempl = gst_pad_get_pad_template_caps (otherpad);
/* we can do what the peer can */ /* first prepare the filter to be send onwards. We need to filter and
* transform it to valid caps for the otherpad. */
if (filter) { if (filter) {
GST_DEBUG_OBJECT (pad, "filter caps %" GST_PTR_FORMAT, filter); GST_DEBUG_OBJECT (pad, "filter caps %" GST_PTR_FORMAT, filter);
/* filtered against our padtemplate on the other side */ /* filtered against our padtemplate of this pad */
GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, templ); GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, templ);
temp = gst_caps_intersect_full (filter, templ, GST_CAPS_INTERSECT_FIRST); temp = gst_caps_intersect_full (filter, templ, GST_CAPS_INTERSECT_FIRST);
GST_DEBUG_OBJECT (pad, "intersected %" GST_PTR_FORMAT, temp); GST_DEBUG_OBJECT (pad, "intersected %" GST_PTR_FORMAT, temp);
@ -679,7 +680,7 @@ gst_base_transform_query_caps (GstBaseTransform * trans, GstPad * pad,
GST_DEBUG_OBJECT (pad, "transformed %" GST_PTR_FORMAT, peerfilter); GST_DEBUG_OBJECT (pad, "transformed %" GST_PTR_FORMAT, peerfilter);
gst_caps_unref (temp); gst_caps_unref (temp);
/* and filter against the template of this pad */ /* and filter against the template of the other pad */
GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, otempl); GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, otempl);
/* We keep the caps sorted like the returned caps */ /* We keep the caps sorted like the returned caps */
temp = temp =
@ -689,6 +690,7 @@ gst_base_transform_query_caps (GstBaseTransform * trans, GstPad * pad,
peerfilter = temp; peerfilter = temp;
} }
/* query the peer with the transformed filter */
peercaps = gst_pad_peer_query_caps (otherpad, peerfilter); peercaps = gst_pad_peer_query_caps (otherpad, peerfilter);
if (peerfilter) if (peerfilter)