avfilter/framesync: allocate FFFrameSyncIn internally

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

1 files changed, 8 insertions, 1 deletions

diff --git a/libavfilter/framesync.c b/libavfilter/framesync.c
index 12db50cb77..bdac40b783 100644
--- a/libavfilter/framesync.c
+++ b/libavfilter/framesync.c
@@ -46,11 +46,16 @@ enum {
     STATE_EOF,
 };
 
-void ff_framesync_init(FFFrameSync *fs, void *parent, unsigned nb_in)
+int ff_framesync_init(FFFrameSync *fs, void *parent, unsigned nb_in)
 {
     fs->class  = &framesync_class;
     fs->parent = parent;
     fs->nb_in  = nb_in;
+
+    fs->in = av_calloc(nb_in, sizeof(*fs->in));
+    if (!fs->in)
+        return AVERROR(ENOMEM);
+    return 0;
 }
 
 static void framesync_sync_level_update(FFFrameSync *fs)
@@ -267,6 +272,8 @@ void ff_framesync_uninit(FFFrameSync *fs)
         av_frame_free(&fs->in[i].frame_next);
         ff_bufqueue_discard_all(&fs->in[i].queue);
     }
+
+    av_freep(&fs->in);
 }
 
 int ff_framesync_process_frame(FFFrameSync *fs, unsigned all)