[FFmpeg-cvslog] avformat/movenc: Reduce size of the allocated MOVIentry array

[James Almer]

ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Wed Mar 25 14:16:35 2020 -0300| [59c993e227cd0460513d3eeaf17cc34dff33019e] | committer: James Almer

avformat/movenc: Reduce size of the allocated MOVIentry array

Increasing it by 2048 entries per realloc is exessive.
Reduces memory usage, especially on long, non fragmented output.

Reviewed-by: Anton Khirnov <anton at khirnov.net>
Signed-off-by: James Almer <jamrial at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=59c993e227cd0460513d3eeaf17cc34dff33019e
---

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

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 85df5d1374..ce82acf914 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -5559,7 +5559,7 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
     }
 
     if (trk->entry >= trk->cluster_capacity) {
-        unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
+        unsigned new_capacity = trk->entry + MOV_INDEX_CLUSTER_SIZE;
         if (av_reallocp_array(&trk->cluster, new_capacity,
                               sizeof(*trk->cluster))) {
             ret = AVERROR(ENOMEM);