avfilter/framesync: allocate FFFrameSyncIn internally

Signed-off-by: Paul B Mahol <onemda@gmail.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/libavfilter/dualinput.c b/libavfilter/dualinput.c
index 45f681078d..ea2007f93c 100644
--- a/libavfilter/dualinput.c
+++ b/libavfilter/dualinput.c
@@ -42,9 +42,13 @@ static int process_frame(FFFrameSync *fs)
 
 int ff_dualinput_init(AVFilterContext *ctx, FFDualInputContext *s)
 {
-    FFFrameSyncIn *in = s->fs.in;
+    FFFrameSyncIn *in;
+    int ret;
 
-    ff_framesync_init(&s->fs, ctx, 2);
+    if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0)
+        return ret;
+
+    in = s->fs.in;
     s->fs.opaque = s;
     s->fs.on_event = process_frame;
     in[0].time_base = ctx->inputs[0]->time_base;