[FFmpeg-cvslog] avformat/movenc: fix size calculation in mov_write_eac3_tag()

[Paul B Mahol]

ffmpeg | branch: release/4.1 | Paul B Mahol <onemda at gmail.com> | Wed Nov 21 11:45:02 2018 +0100| [fcffed470a5236bc1799bc3022d588704d9ae5ef] | committer: Paul B Mahol

avformat/movenc: fix size calculation in mov_write_eac3_tag()

Otherwise it would assert when flushing bits.

(cherry picked from commit 027f032bbce9bdf7bbec40665b98590cade33416)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=fcffed470a5236bc1799bc3022d588704d9ae5ef
---

 libavformat/movenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 33978ee1b0..bee8e89760 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -541,7 +541,7 @@ static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
         return AVERROR(EINVAL);
 
     info = track->eac3_priv;
-    size = 2 + 4 * (info->num_ind_sub + 1);
+    size = 2 + ((34 * (info->num_ind_sub + 1) + 7) >> 3);
     buf = av_malloc(size);
     if (!buf) {
         size = AVERROR(ENOMEM);