Merge commit 'a9553bbb336a7186c62b3b14a0499c1b6ba61ebd'

* commit 'a9553bbb336a7186c62b3b14a0499c1b6ba61ebd':
  movenc: Set all implicit flags immediately in mov_write_header

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/movenc.c

@@ -3625,12 +3625,16 @@ static int mov_write_header(AVFormatContext *s)
     /* Set the FRAGMENT flag if any of the fragmentation methods are
      * enabled. */
     if (mov->max_fragment_duration || mov->max_fragment_size ||
-        mov->mode == MODE_ISM ||
         mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
                       FF_MOV_FLAG_FRAG_KEYFRAME |
                       FF_MOV_FLAG_FRAG_CUSTOM))
         mov->flags |= FF_MOV_FLAG_FRAGMENT;
 
+    /* Set other implicit flags immediately */
+    if (mov->mode == MODE_ISM)
+        mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
+                      FF_MOV_FLAG_FRAGMENT;
+
     /* faststart: moov at the beginning of the file, if supported */
     if (mov->flags & FF_MOV_FLAG_FASTSTART) {
         if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
@@ -3823,7 +3827,6 @@ static int mov_write_header(AVFormatContext *s)
                             FF_MOV_FLAG_FRAG_CUSTOM)) &&
             !mov->max_fragment_duration && !mov->max_fragment_size)
             mov->max_fragment_duration = 5000000;
-        mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF;
     }
 
     if (mov->reserved_moov_size){