[FFmpeg-trac] #4819(avcodec:reopened): av_register_all() memory leak

[FFmpeg]

#4819: av_register_all() memory leak
--------------------------------------+------------------------------------
             Reporter:  joeallen      |                    Owner:
                 Type:  defect        |                   Status:  reopened
             Priority:  normal        |                Component:  avcodec
              Version:  unspecified   |               Resolution:
             Keywords:  libx265 leak  |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
--------------------------------------+------------------------------------

Comment (by cehoyos):

 While I cannot reproduce an increasing leak no matter how often I call
 x265_api_get(), the leak is significantly bigger if the libraries for
 different bit-depths are actually available:
 {{{
 ==26924== HEAP SUMMARY:
 ==26924==     in use at exit: 3,244 bytes in 9 blocks
 ==26924==   total heap usage: 11 allocs, 2 frees, 3,548 bytes allocated
 ==26924==
 ==26924== 30 bytes in 1 blocks are still reachable in loss record 1 of 7
 ==26924==    at 0x4C2ABED: malloc (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==26924==    by 0x4005D9D: open_path (in /lib64/ld-2.15.so)
 ==26924==    by 0x4008266: _dl_map_object (in /lib64/ld-2.15.so)
 ==26924==    by 0x401281D: dl_open_worker (in /lib64/ld-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x401228B: _dl_open (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E015: dlopen_doit (in /lib64/libdl-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E5EB: _dlerror_run (in /lib64/libdl-2.15.so)
 ==26924==    by 0x5C0E0B0: dlopen@@GLIBC_2.2.5 (in /lib64/libdl-2.15.so)
 ==26924==    by 0x4ED78EA: x265_api_get_74 (in libx265.so.74)
 ==26924==    by 0x4007B1: main (in a.out)
 ==26924==
 ==26924== 30 bytes in 1 blocks are still reachable in loss record 2 of 7
 ==26924==    at 0x4C2ABED: malloc (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==26924==    by 0x4005D9D: open_path (in /lib64/ld-2.15.so)
 ==26924==    by 0x4008266: _dl_map_object (in /lib64/ld-2.15.so)
 ==26924==    by 0x401281D: dl_open_worker (in /lib64/ld-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x401228B: _dl_open (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E015: dlopen_doit (in /lib64/libdl-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E5EB: _dlerror_run (in /lib64/libdl-2.15.so)
 ==26924==    by 0x5C0E0B0: dlopen@@GLIBC_2.2.5 (in /lib64/libdl-2.15.so)
 ==26924==    by 0x4ED78EA: x265_api_get_74 (in libx265.so.74)
 ==26924==    by 0x4007CD: main (in a.out)
 ==26924==
 ==26924== 32 bytes in 1 blocks are still reachable in loss record 3 of 7
 ==26924==    at 0x4C292B8: calloc (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==26924==    by 0x5C0E65F: _dlerror_run (in /lib64/libdl-2.15.so)
 ==26924==    by 0x5C0E0B0: dlopen@@GLIBC_2.2.5 (in /lib64/libdl-2.15.so)
 ==26924==    by 0x4ED78EA: x265_api_get_74 (in libx265.so.74)
 ==26924==    by 0x4007B1: main (in a.out)
 ==26924==
 ==26924== 240 bytes in 1 blocks are still reachable in loss record 4 of 7
 ==26924==    at 0x4C292B8: calloc (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==26924==    by 0x4010042: _dl_check_map_versions (in /lib64/ld-2.15.so)
 ==26924==    by 0x4012D05: dl_open_worker (in /lib64/ld-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x401228B: _dl_open (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E015: dlopen_doit (in /lib64/libdl-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E5EB: _dlerror_run (in /lib64/libdl-2.15.so)
 ==26924==    by 0x5C0E0B0: dlopen@@GLIBC_2.2.5 (in /lib64/libdl-2.15.so)
 ==26924==    by 0x4ED78EA: x265_api_get_74 (in libx265.so.74)
 ==26924==    by 0x4007B1: main (in a.out)
 ==26924==
 ==26924== 240 bytes in 1 blocks are still reachable in loss record 5 of 7
 ==26924==    at 0x4C292B8: calloc (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==26924==    by 0x4010042: _dl_check_map_versions (in /lib64/ld-2.15.so)
 ==26924==    by 0x4012D05: dl_open_worker (in /lib64/ld-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x401228B: _dl_open (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E015: dlopen_doit (in /lib64/libdl-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E5EB: _dlerror_run (in /lib64/libdl-2.15.so)
 ==26924==    by 0x5C0E0B0: dlopen@@GLIBC_2.2.5 (in /lib64/libdl-2.15.so)
 ==26924==    by 0x4ED78EA: x265_api_get_74 (in libx265.so.74)
 ==26924==    by 0x4007CD: main (in a.out)
 ==26924==
 ==26924== 316 bytes in 2 blocks are still reachable in loss record 6 of 7
 ==26924==    at 0x4C2ABED: malloc (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==26924==    by 0x4C2AD6F: realloc (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==26924==    by 0x400AF71: _dl_new_object (in /lib64/ld-2.15.so)
 ==26924==    by 0x40062D5: _dl_map_object_from_fd (in /lib64/ld-2.15.so)
 ==26924==    by 0x4008152: _dl_map_object (in /lib64/ld-2.15.so)
 ==26924==    by 0x401281D: dl_open_worker (in /lib64/ld-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x401228B: _dl_open (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E015: dlopen_doit (in /lib64/libdl-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E5EB: _dlerror_run (in /lib64/libdl-2.15.so)
 ==26924==    by 0x5C0E0B0: dlopen@@GLIBC_2.2.5 (in /lib64/libdl-2.15.so)
 ==26924==
 ==26924== 2,356 bytes in 2 blocks are still reachable in loss record 7 of
 7
 ==26924==    at 0x4C292B8: calloc (in /usr/lib64/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==26924==    by 0x400ADEE: _dl_new_object (in /lib64/ld-2.15.so)
 ==26924==    by 0x40062D5: _dl_map_object_from_fd (in /lib64/ld-2.15.so)
 ==26924==    by 0x4008152: _dl_map_object (in /lib64/ld-2.15.so)
 ==26924==    by 0x401281D: dl_open_worker (in /lib64/ld-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x401228B: _dl_open (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E015: dlopen_doit (in /lib64/libdl-2.15.so)
 ==26924==    by 0x400E5F5: _dl_catch_error (in /lib64/ld-2.15.so)
 ==26924==    by 0x5C0E5EB: _dlerror_run (in /lib64/libdl-2.15.so)
 ==26924==    by 0x5C0E0B0: dlopen@@GLIBC_2.2.5 (in /lib64/libdl-2.15.so)
 ==26924==    by 0x4ED78EA: x265_api_get_74 (in libx265.so.74)
 ==26924==
 ==26924== LEAK SUMMARY:
 ==26924==    definitely lost: 0 bytes in 0 blocks
 ==26924==    indirectly lost: 0 bytes in 0 blocks
 ==26924==      possibly lost: 0 bytes in 0 blocks
 ==26924==    still reachable: 3,244 bytes in 9 blocks
 ==26924==         suppressed: 0 bytes in 0 blocks
 }}}
 {{{
 #include "x265.h"

 int main()
 {
 printf("x265_api_get( 0): %p \n", x265_api_get(0));
 printf("x265_api_get( 8): %p \n", x265_api_get(8));
 printf("x265_api_get(10): %p \n", x265_api_get(10));
 printf("x265_api_get(12): %p \n", x265_api_get(12));

 x265_cleanup();

 x265_api_get(0);
 x265_api_get(8);
 x265_api_get(10);
 x265_api_get(12);

 x265_cleanup();

 return 0;
 }
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4819#comment:9>
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