[FFmpeg-cvslog] avformat/matroskaenc: Use proper AVIOContext

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Tue Aug  8 11:20:17 2023 +0200| [1ed03b5757fff4ce5f42f9c38c30df014342e80c] | committer: Andreas Rheinhardt

avformat/matroskaenc: Use proper AVIOContext

These two AVIOContexts currently coincide, but this is not
guaranteed to remain so (in fact, I have plans to write each
TrackEntry into its own AVIOContext).

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1ed03b5757fff4ce5f42f9c38c30df014342e80c
---

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

diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index 9fd4cf2f6c..bfe6342d9b 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -1679,7 +1679,7 @@ static void mkv_write_blockadditionmapping(AVFormatContext *s, MatroskaMuxContex
         // We can't know at this point if there will be a block with BlockAdditions, so
         // we either write the default value here, or a void element. Either of them will
         // be overwritten when finishing the track.
-        put_ebml_uint(mkv->track.bc, MATROSKA_ID_TRACKMAXBLKADDID, 0);
+        put_ebml_uint(pb, MATROSKA_ID_TRACKMAXBLKADDID, 0);
         // Similarly, reserve space for an eventual HDR10+ ITU T.35 metadata BlockAdditionMapping.
         put_ebml_void(pb, 3 /* BlockAdditionMapping */
                         + 4 /* BlockAddIDValue */