[FFmpeg-trac] #7827(avformat:new): libavformat/libavcodec might leak some memory when muxing a flac stream into a matroska container

[FFmpeg]

#7827: libavformat/libavcodec might leak some memory when muxing a flac stream
into a matroska container
------------------------------------+------------------------------------
             Reporter:  pbelkner    |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mkv leak    |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+------------------------------------

Comment (by pbelkner):

 According to my test this should fix the issue:
 {{{
 peter at debian-9:~$ valgrind --leak-check=yes muxing ./muxing.mkv
 ==6378== Memcheck, a memory error detector
 ==6378== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
 ==6378== Using Valgrind-3.12.0.SVN and LibVEX; rerun with -h for copyright
 info
 ==6378== Command: muxing ./muxing.mkv
 ==6378==
 Output #0, matroska, to './muxing.mkv':
     Stream #0:0: Video: mpeg4, yuv420p, 352x288, q=2-31, 400 kb/s, 25 tbn
     Stream #0:1: Audio: flac, 44100 Hz, stereo, s16, 64 kb/s
 pts:0 pts_time:0 dts:0 dts_time:0 duration:0 duration_time:0
 stream_index:0
 pts:0 pts_time:0 dts:0 dts_time:0 duration:104 duration_time:0.104
 stream_index:1

 ...

 pts:9960 pts_time:9.96 dts:9960 dts_time:9.96 duration:0 duration_time:0
 stream_index:0
 pts:10031 pts_time:10.031 dts:10031 dts_time:10.031 duration:0
 duration_time:0 stream_index:1
 ==6378==
 ==6378== HEAP SUMMARY:
 ==6378==     in use at exit: 0 bytes in 0 blocks
 ==6378==   total heap usage: 19,437 allocs, 19,437 frees, 12,457,158 bytes
 allocated
 ==6378==
 ==6378== All heap blocks were freed -- no leaks are possible
 ==6378==
 ==6378== For counts of detected and suppressed errors, rerun with: -v
 ==6378== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
 peter at debian-9:~$
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7827#comment:7>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker