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v4l2src: use gst_caps_intersect_full in negotiate()

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Instead of reimplementing the GST_CAPS_INTERSECT_FIRST
interection mode.

https://bugzilla.gnome.org/show_bug.cgi?id=768195
This commit is contained in:
Reynaldo H. Verdejo Pinochet 2016-07-01 22:53:33 -07:00 committed by Nicolas Dufresne
parent 4b16b16aaf
commit dfdc15c548
1 changed files with 4 additions and 17 deletions
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21
sys/v4l2/gstv4l2src.c
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@ -308,27 +308,13 @@ gst_v4l2src_negotiate (GstBaseSrc * basesrc)
peercaps = gst_pad_peer_query_caps (GST_BASE_SRC_PAD (basesrc), NULL);
GST_DEBUG_OBJECT (basesrc, "caps of peer: %" GST_PTR_FORMAT, peercaps);
LOG_CAPS (basesrc, peercaps);
if (peercaps && !gst_caps_is_any (peercaps)) {
GstCaps *icaps = NULL;
int i;
/* Prefer the first caps we are compatible with that the peer proposed */
for (i = 0; i < gst_caps_get_size (peercaps); i++) {
/* get intersection */
GstCaps *ipcaps = gst_caps_copy_nth (peercaps, i);
GST_DEBUG_OBJECT (basesrc, "peer: %" GST_PTR_FORMAT, ipcaps);
LOG_CAPS (basesrc, ipcaps);
icaps = gst_caps_intersect (thiscaps, ipcaps);
gst_caps_unref (ipcaps);
if (!gst_caps_is_empty (icaps))
break;
gst_caps_unref (icaps);
icaps = NULL;
}
icaps = gst_caps_intersect_full (peercaps, thiscaps,
GST_CAPS_INTERSECT_FIRST);
GST_DEBUG_OBJECT (basesrc, "intersect: %" GST_PTR_FORMAT, icaps);
LOG_CAPS (basesrc, icaps);
@ -343,6 +329,7 @@ gst_v4l2src_negotiate (GstBaseSrc * basesrc)
if (gst_structure_get_int (s, "width", &twidth)
&& gst_structure_get_int (s, "height", &theight)) {
int i;
/* Walk the structure backwards to get the first entry of the
* smallest resolution bigger (or equal to) the preferred resolution)