avfilter/drawtext: fix memory leak when using "reinit" runtime command

netintsteven · jamrial · commit 57a53adf2b12 · 2025-02-06T18:10:39.000-03:00
Free AVOption in drawtext private context when freeing old copy of drawtext private context during processing of "reinit" runtime command. Signed-off-by: Steven Zhou <steven.zhou@netint.ca> Signed-off-by: James Almer <jamrial@gmail.com> (cherry picked from commit d1fa9cf)
diff --git a/libavfilter/vf_drawtext.c b/libavfilter/vf_drawtext.c
@@ -1217,6 +1217,7 @@ static int command(AVFilterContext *ctx, const char *cmd, const char *arg, char
 
         ctx->priv = old;
         uninit(ctx);
+        av_opt_free(old);
         av_freep(&old);
 
         ctx->priv = new;
