[FFmpeg-cvslog] avformat/matroskaenc: Use dedicated pointer for accesses

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Tue Aug  8 12:34:14 2023 +0200| [cf20f18c41120a08771670ea7a1507199a098129] | committer: Andreas Rheinhardt

avformat/matroskaenc: Use dedicated pointer for accesses

Improves readability; also split overlong lines.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=cf20f18c41120a08771670ea7a1507199a098129
---

 libavformat/matroskaenc.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index bfe6342d9b..323379c8bc 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -3200,7 +3200,9 @@ after_cues:
 
     if (mkv->track.bc) {
         // write Tracks master
-        if (!IS_WEBM(mkv))
+        if (!IS_WEBM(mkv)) {
+            AVIOContext *track_bc = mkv->track.bc;
+
             for (unsigned i = 0; i < s->nb_streams; i++) {
                 const mkv_track *track = &mkv->tracks[i];
 
@@ -3210,16 +3212,20 @@ after_cues:
                 // We reserved a single byte to write this value.
                 av_assert0(track->max_blockaddid <= 0xFF);
 
-                avio_seek(mkv->track.bc, track->blockadditionmapping_offset, SEEK_SET);
+                avio_seek(track_bc, track->blockadditionmapping_offset, SEEK_SET);
 
-                put_ebml_uint(mkv->track.bc, MATROSKA_ID_TRACKMAXBLKADDID, track->max_blockaddid);
+                put_ebml_uint(track_bc, MATROSKA_ID_TRACKMAXBLKADDID,
+                              track->max_blockaddid);
                 if (track->max_blockaddid == MATROSKA_BLOCK_ADD_ID_ITU_T_T35) {
-                    ebml_master mapping_master = start_ebml_master(mkv->track.bc, MATROSKA_ID_TRACKBLKADDMAPPING, 8);
-                    put_ebml_uint(mkv->track.bc, MATROSKA_ID_BLKADDIDTYPE, MATROSKA_BLOCK_ADD_ID_TYPE_ITU_T_T35);
-                    put_ebml_uint(mkv->track.bc, MATROSKA_ID_BLKADDIDVALUE, MATROSKA_BLOCK_ADD_ID_ITU_T_T35);
-                    end_ebml_master(mkv->track.bc, mapping_master);
+                    ebml_master mapping_master = start_ebml_master(track_bc, MATROSKA_ID_TRACKBLKADDMAPPING, 8);
+                    put_ebml_uint(track_bc, MATROSKA_ID_BLKADDIDTYPE,
+                                  MATROSKA_BLOCK_ADD_ID_TYPE_ITU_T_T35);
+                    put_ebml_uint(track_bc, MATROSKA_ID_BLKADDIDVALUE,
+                                  MATROSKA_BLOCK_ADD_ID_ITU_T_T35);
+                    end_ebml_master(track_bc, mapping_master);
                 }
             }
+        }
 
         avio_seek(pb, mkv->track.pos, SEEK_SET);
         ret = end_ebml_master_crc32(pb, &mkv->track.bc, mkv,