Merge commit '7c020e1ad37d27c9d5db4d714401f09c80e3cc44'

* commit '7c020e1ad37d27c9d5db4d714401f09c80e3cc44':
  movenc: Grow the frag_info array in chunks

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

1 files changed, 8 insertions, 3 deletions

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 206c4be3dd..77fc1804b7 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -3085,9 +3085,14 @@ static int mov_flush_fragment(AVFormatContext *s)
             MOVFragmentInfo *info;
             avio_flush(s->pb);
             track->nb_frag_info++;
-            track->frag_info = av_realloc(track->frag_info,
-                                          sizeof(*track->frag_info) *
-                                          track->nb_frag_info);
+            if (track->nb_frag_info >= track->frag_info_capacity) {
+                unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
+                if (av_reallocp_array(&track->frag_info,
+                                      new_capacity,
+                                      sizeof(*track->frag_info)))
+                    return AVERROR(ENOMEM);
+                track->frag_info_capacity = new_capacity;
+            }
             info = &track->frag_info[track->nb_frag_info - 1];
             info->offset   = avio_tell(s->pb);
             info->time     = mov->tracks[i].frag_start;