wvenc: support for ape tags

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

libavformat/wvenc.c

@@ -22,6 +22,7 @@
 #include "avformat.h"
 #include "internal.h"
 #include "avio_internal.h"
+#include "apetag.h"
 
 typedef struct{
     uint32_t duration;
@@ -75,6 +76,8 @@ static int write_trailer(AVFormatContext *s)
     WVMuxContext *wc = s->priv_data;
     AVIOContext *pb = s->pb;
 
+    ff_ape_write(s);
+
     if (pb->seekable) {
         avio_seek(pb, 12, SEEK_SET);
         avio_wl32(pb, wc->duration);