diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index cc7855a4cc..69d1949103 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -565,19 +565,9 @@ static void ffmpeg_cleanup(int ret)
     av_freep(&subtitle_out);
 
     /* close files */
-    for (i = 0; i < nb_output_files; i++) {
-        OutputFile *of = output_files[i];
-        AVFormatContext *s;
-        if (!of)
-            continue;
-        s = of->ctx;
-        if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE))
-            avio_closep(&s->pb);
-        avformat_free_context(s);
-        av_dict_free(&of->opts);
+    for (i = 0; i < nb_output_files; i++)
+        of_close(&output_files[i]);
 
-        av_freep(&output_files[i]);
-    }
     for (i = 0; i < nb_output_streams; i++) {
         OutputStream *ost = output_streams[i];
 
diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index 4425b7a874..ff8ebbfab5 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -690,6 +690,7 @@ int hwaccel_decode_init(AVCodecContext *avctx);
 /* open the muxer when all the streams are initialized */
 int of_check_init(OutputFile *of);
 int of_write_trailer(OutputFile *of);
+void of_close(OutputFile **pof);
 
 void of_write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost,
                      int unqueue);
diff --git a/fftools/ffmpeg_mux.c b/fftools/ffmpeg_mux.c
index 5348eef01d..3cdaa494d7 100644
--- a/fftools/ffmpeg_mux.c
+++ b/fftools/ffmpeg_mux.c
@@ -311,3 +311,20 @@ int of_write_trailer(OutputFile *of)
 
     return 0;
 }
+
+void of_close(OutputFile **pof)
+{
+    OutputFile *of = *pof;
+    AVFormatContext *s;
+
+    if (!of)
+        return;
+
+    s = of->ctx;
+    if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE))
+        avio_closep(&s->pb);
+    avformat_free_context(s);
+    av_dict_free(&of->opts);
+
+    av_freep(pof);
+}