[FFmpeg-trac] #8313(undetermined:new): memory leaks in filter_frame()

[FFmpeg]

#8313: memory leaks in filter_frame()
-------------------------------------+-------------------------------------
             Reporter:  Suhwan       |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 There are memory leaks in filter_frame()
 How to reproduce:
 {{{
 % ffmpeg_g -y -i $PoC -filter_complex tile -target dvd -loglevel 0 -vbsf
 mpeg4_unpack_bframes tmp.ass

 ffmpeg version N-95464-g7056ddc0e0 Copyright (c) 2000-2019 the FFmpeg
 developers
 built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
 configuration: --cc=clang --cxx=clang++ --ld=clang --enable-debug
 }}}

 Here's Valgrind log

 {{{
 ==47004== HEAP SUMMARY:
 ==47004==     in use at exit: 323,351 bytes in 7 blocks
 ==47004==   total heap usage: 2,604 allocs, 2,597 frees, 2,239,057 bytes
 allocated
 ==47004==
 ==47004== 323,319 (536 direct, 322,783 indirect) bytes in 1 blocks are
 definitely lost in loss record 7 of 7
 ==47004==    at 0x9FE3E76: memalign (in /usr/lib/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==47004==    by 0x9FE3F91: posix_memalign (in /usr/lib/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==47004==    by 0x592F079: av_malloc (mem.c:87)
 ==47004==    by 0x592F079: av_mallocz (mem.c:238)
 ==47004==    by 0x590320D: av_frame_alloc (frame.c:191)
 ==47004==    by 0x64FD65: ff_frame_pool_get (framepool.c:201)
 ==47004==    by 0xFB8D7C: ff_default_get_video_buffer (video.c:90)
 ==47004==    by 0xD892DB: filter_frame (vf_tile.c:203)
 ==47004==    by 0x5D002C: ff_filter_frame_framed (avfilter.c:1084)
 ==47004==    by 0x5D002C: ff_filter_frame_to_filter (avfilter.c:1232)
 ==47004==    by 0x5D002C: ff_filter_activate_default (avfilter.c:1281)
 ==47004==    by 0x5D002C: ff_filter_activate (avfilter.c:1443)
 ==47004==    by 0x5F4434: push_frame (buffersrc.c:187)
 ==47004==    by 0x5F4434: av_buffersrc_add_frame_internal
 (buffersrc.c:261)
 ==47004==    by 0x5F300D: av_buffersrc_add_frame_flags (buffersrc.c:170)
 ==47004==    by 0x4CAD7F: ifilter_send_frame (ffmpeg.c:2186)
 ==47004==    by 0x4CAD7F: send_frame_to_filters (ffmpeg.c:2260)
 ==47004==    by 0x4A07DB: decode_video (ffmpeg.c:2459)
 ==47004==    by 0x4A07DB: process_input_packet (ffmpeg.c:2613)
 ==47004==
 ==47004== LEAK SUMMARY:
 ==47004==    definitely lost: 536 bytes in 1 blocks
 ==47004==    indirectly lost: 322,783 bytes in 5 blocks
 ==47004==      possibly lost: 0 bytes in 0 blocks
 ==47004==    still reachable: 32 bytes in 1 blocks
 ==47004==         suppressed: 0 bytes in 0 blocks
 ==47004== Reachable blocks (those to which a pointer was found) are not
 shown.
 ==47004== To see them, rerun with: --leak-check=full --show-leak-kinds=all
 ==47004==
 ==47004== For counts of detected and suppressed errors, rerun with: -v
 ==47004== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

 }}}
 Please confirm.
 Thanks

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8313>
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