1 files changed, 12 insertions, 4 deletions
diff --git a/sub/sd_ass.c b/sub/sd_ass.c
index 16275207b7..88aebe8c6a 100644
--- a/sub/sd_ass.c
+++ b/sub/sd_ass.c
@@ -510,13 +510,18 @@ static void fill_plaintext(struct sd *sd, double pts)
         track->styles[track->default_style].Alignment = ctx->on_top ? 6 : 2;
 }
 
+static void clear(struct sd *sd)
+{
+    struct sd_ass_priv *ctx = sd->priv;
+    ass_flush_events(ctx->ass_track);
+    ctx->num_seen_packets = 0;
+}
+
 static void reset(struct sd *sd)
 {
     struct sd_ass_priv *ctx = sd->priv;
-    if (sd->opts->sub_clear_on_seek) {
-        ass_flush_events(ctx->ass_track);
-        ctx->num_seen_packets = 0;
-    }
+    if (sd->opts->sub_clear_on_seek)
+        clear(sd);
     if (ctx->converter)
         lavc_conv_reset(ctx->converter);
 }
@@ -549,6 +554,9 @@ static int control(struct sd *sd, enum sd_ctrl cmd, void *arg)
     case SD_CTRL_SET_TOP:
         ctx->on_top = *(bool *)arg;
         return CONTROL_OK;
+    case SD_CTRL_CLEAR:
+        clear(sd);
+        return CONTROL_OK;
     default:
         return CONTROL_UNKNOWN;
     }