[FFmpeg-trac] #4049(avformat:new): av_write_trailer() - memory leaks on error - interleave_packet()

[FFmpeg]

#4049: av_write_trailer() - memory leaks on error - interleave_packet()
-------------------------------------+------------------------------------
             Reporter:  perexg       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avformat
              Version:  unspecified  |               Resolution:
             Keywords:  leak         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+------------------------------------

Comment (by perexg):

 {{{
 ==17815== 11,720 bytes in 4 blocks are definitely lost in loss record 41
 of 42
 ==17815==    at 0x4C29D96: memalign (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==17815==    by 0x4C29E87: posix_memalign (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==17815==    by 0x548CA1: av_mallocz (mem.c:95)
 ==17815==    by 0x570C2D: mpegts_write_header (mpegtsenc.c:661)
 ==17815==    by 0x57476C: avformat_write_header (mux.c:419)
 }}}
 {{{
 =17815== 7,700 (2,960 direct, 4,740 indirect) bytes in 2 blocks are
 definitely lost in loss record 40 of 42
 ==17815==    at 0x4C29D96: memalign (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==17815==    by 0x4C29E87: posix_memalign (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==17815==    by 0x5489B9: av_malloc (mem.c:95)
 ==17815==    by 0x575CEA: avformat_alloc_context (options.c:110)
 ==17815==    by 0x570F68: mpegts_write_header (mpegtsenc.c:705)
 ==17815==    by 0x57476C: avformat_write_header (mux.c:419)
 }}}

 etc.. this is after av_write_trailer() call... but the write callback
 returned error before, because fd was closed (by remote side)..

 Anyway, the summary description should be enough to check this problem.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4049#comment:2>
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