[FFmpeg-trac] #8303(undetermined:new): memory leaks in ff_frame_pool_get()

[FFmpeg]

#8303: memory leaks in ff_frame_pool_get()
-------------------------------------+-------------------------------------
             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 ff_frame_pool_get()
 How to reproduce:
 {{{
 % ffmpeg_g -t 3 -y -i $PoC -filter_complex colorspace -target dvd
 -loglevel 0 tmp.ads

 ffmpeg version N-95441-g0ae6fb276b 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

 {{{
 ==6446== HEAP SUMMARY:
 ==6446==     in use at exit: 100,746 bytes in 33 blocks
 ==6446==   total heap usage: 3,265 allocs, 3,232 frees, 2,295,813 bytes
 allocated
 ==6446==
 ==6446== 50,357 (536 direct, 49,821 indirect) bytes in 1 blocks are
 definitely lost in loss record 12 of 13
 ==6446==    at 0x9FE2E76: memalign (in /usr/lib/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==6446==    by 0x9FE2F91: posix_memalign (in /usr/lib/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==6446==    by 0x592E949: av_malloc (mem.c:87)
 ==6446==    by 0x592E949: av_mallocz (mem.c:238)
 ==6446==    by 0x5902ADD: av_frame_alloc (frame.c:191)
 ==6446==    by 0x64FBD5: ff_frame_pool_get (framepool.c:201)
 ==6446==    by 0xFB8A9C: ff_default_get_video_buffer (video.c:90)
 ==6446==    by 0xD20033: scale_frame (vf_scale.c:460)
 ==6446==    by 0xD1F24C: filter_frame (vf_scale.c:549)
 ==6446==    by 0x5CFE9C: ff_filter_frame_framed (avfilter.c:1084)
 ==6446==    by 0x5CFE9C: ff_filter_frame_to_filter (avfilter.c:1232)
 ==6446==    by 0x5CFE9C: ff_filter_activate_default (avfilter.c:1281)
 ==6446==    by 0x5CFE9C: ff_filter_activate (avfilter.c:1443)
 ==6446==    by 0x5F42A4: push_frame (buffersrc.c:187)
 ==6446==    by 0x5F42A4: av_buffersrc_add_frame_internal (buffersrc.c:261)
 ==6446==    by 0x5F2E7D: av_buffersrc_add_frame_flags (buffersrc.c:170)
 ==6446==    by 0x4CAD5F: ifilter_send_frame (ffmpeg.c:2186)
 ==6446==    by 0x4CAD5F: send_frame_to_filters (ffmpeg.c:2260)
 ==6446==
 ==6446== 50,357 (536 direct, 49,821 indirect) bytes in 1 blocks are
 definitely lost in loss record 13 of 13
 ==6446==    at 0x9FE2E76: memalign (in /usr/lib/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==6446==    by 0x9FE2F91: posix_memalign (in /usr/lib/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==6446==    by 0x592E949: av_malloc (mem.c:87)
 ==6446==    by 0x592E949: av_mallocz (mem.c:238)
 ==6446==    by 0x5902ADD: av_frame_alloc (frame.c:191)
 ==6446==    by 0x64FBD5: ff_frame_pool_get (framepool.c:201)
 ==6446==    by 0xFB8A9C: ff_default_get_video_buffer (video.c:90)
 ==6446==    by 0x7FD3D4: filter_frame (vf_colorspace.c:770)
 ==6446==    by 0x5CFE9C: ff_filter_frame_framed (avfilter.c:1084)
 ==6446==    by 0x5CFE9C: ff_filter_frame_to_filter (avfilter.c:1232)
 ==6446==    by 0x5CFE9C: ff_filter_activate_default (avfilter.c:1281)
 ==6446==    by 0x5CFE9C: ff_filter_activate (avfilter.c:1443)
 ==6446==    by 0x5F42BE: push_frame (buffersrc.c:187)
 ==6446==    by 0x5F42BE: av_buffersrc_add_frame_internal (buffersrc.c:261)
 ==6446==    by 0x5F2E7D: av_buffersrc_add_frame_flags (buffersrc.c:170)
 ==6446==    by 0x4CAD5F: ifilter_send_frame (ffmpeg.c:2186)
 ==6446==    by 0x4CAD5F: send_frame_to_filters (ffmpeg.c:2260)
 ==6446==    by 0x4A07BB: decode_video (ffmpeg.c:2459)
 ==6446==    by 0x4A07BB: process_input_packet (ffmpeg.c:2613)
 ==6446==
 ==6446== LEAK SUMMARY:
 ==6446==    definitely lost: 1,072 bytes in 2 blocks
 ==6446==    indirectly lost: 99,642 bytes in 30 blocks
 ==6446==      possibly lost: 0 bytes in 0 blocks
 ==6446==    still reachable: 32 bytes in 1 blocks
 ==6446==         suppressed: 0 bytes in 0 blocks
 ==6446== Reachable blocks (those to which a pointer was found) are not
 shown.
 ==6446== To see them, rerun with: --leak-check=full --show-leak-kinds=all
 ==6446==
 ==6446== For counts of detected and suppressed errors, rerun with: -v
 ==6446== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)
 }}}
 Please confirm.
 Thanks

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8303>
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