aboutsummaryrefslogtreecommitdiffstats
path: root/libavfilter/avfilter.c
diff options
context:
space:
mode:
Diffstat (limited to 'libavfilter/avfilter.c')
-rw-r--r--libavfilter/avfilter.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index 08e6aaefc8..f2a42cbd50 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -185,6 +185,22 @@ int avfilter_request_frame(AVFilterLink *link)
else return -1;
}
+int avfilter_poll_frame(AVFilterLink *link)
+{
+ int i, min=INT_MAX;
+
+ if(link_spad(link).poll_frame)
+ return link_spad(link).poll_frame(link);
+ else
+ for (i=0; i<link->src->input_count; i++) {
+ if(!link->src->inputs[i])
+ return -1;
+ min = FFMIN(min, avfilter_poll_frame(link->src->inputs[i]));
+ }
+
+ return min;
+}
+
/* XXX: should we do the duplicating of the picture ref here, instead of
* forcing the source filter to do it? */
void avfilter_start_frame(AVFilterLink *link, AVFilterPicRef *picref)