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| author | Wim Taymans <wim.taymans@collabora.co.uk> | 2012-10-04 10:01:19 +0200 |
|---|---|---|
| committer | Wim Taymans <wim.taymans@collabora.co.uk> | 2012-10-04 10:01:19 +0200 |
| commit | 664f7141be70c68a53aaa18e70c874d306753384 (patch) | |
| tree | 57a56b01ee85483e8a87a9026dd7edc3017f2002 | |
| parent | f78450c62de3e8abacb3e972674fc12ded652311 (diff) | |
basetrans: improve some comments
| -rw-r--r-- | libs/gst/base/gstbasetransform.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libs/gst/base/gstbasetransform.c b/libs/gst/base/gstbasetransform.c index 884fde4ee..b2e275bca 100644 --- a/libs/gst/base/gstbasetransform.c +++ b/libs/gst/base/gstbasetransform.c @@ -664,11 +664,12 @@ gst_base_transform_query_caps (GstBaseTransform * trans, GstPad * pad, templ = gst_pad_get_pad_template_caps (pad); 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) { 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); temp = gst_caps_intersect_full (filter, templ, GST_CAPS_INTERSECT_FIRST); 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_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); /* We keep the caps sorted like the returned caps */ temp = @@ -689,6 +690,7 @@ gst_base_transform_query_caps (GstBaseTransform * trans, GstPad * pad, peerfilter = temp; } + /* query the peer with the transformed filter */ peercaps = gst_pad_peer_query_caps (otherpad, peerfilter); if (peerfilter) |