diff mbox series

[FFmpeg-devel,28/28] avformat/matroskaenc: Improve checks for updating Tags

Message ID 20200122192717.11678-3-andreas.rheinhardt@gmail.com
State Accepted
Headers show
Series Matroska muxer patches | expand

Checks

Context Check Description
andriy/ffmpeg-patchwork success Make fate finished

Commit Message

Andreas Rheinhardt Jan. 22, 2020, 7:27 p.m. UTC 
When updating the Tags at the end, the Matroska muxer would twice check
for whether (!mkv->is_live) is true, despite this code being only executed
if it is. Furthermore, a loop iterates over all the streams even when
there is no Tags element to update at all, because the check for whether
there are Tags is only performed later. This commit fixes this.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
---
 libavformat/matroskaenc.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
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Patch

diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index 354096266d..444032b431 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -2567,7 +2567,7 @@  static int mkv_write_trailer(AVFormatContext *s)
         end_ebml_master_crc32(pb, &mkv->tracks_bc, mkv, MATROSKA_ID_TRACKS, 0, 0);
 
         // update stream durations
-        if (!mkv->is_live) {
+        if (mkv->tags_bc) {
             int i;
             for (i = 0; i < s->nb_streams; ++i) {
                 AVStream *st = s->streams[i];
@@ -2589,8 +2589,7 @@  static int mkv_write_trailer(AVFormatContext *s)
                     put_ebml_binary(mkv->tags_bc, MATROSKA_ID_TAGSTRING, duration_string, 20);
                 }
             }
-        }
-        if (mkv->tags_bc && !mkv->is_live) {
+
             avio_seek(pb, mkv->tags_pos, SEEK_SET);
             end_ebml_master_crc32(pb, &mkv->tags_bc, mkv, MATROSKA_ID_TAGS, 0, 0);
         }