[FFmpeg-trac] #4807(undetermined:new): valgrind report uninitialized memory error muxing HEVC file

[FFmpeg]

#4807: valgrind report uninitialized memory error muxing HEVC file
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:
  michel.promonet                    |                   Status:  new
                 Type:  defect       |                Component:
             Priority:  normal       |  undetermined
              Version:  2.7          |               Resolution:
             Keywords:  valgrind,    |               Blocked By:
  hevc, h265, muxing                 |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by michel.promonet):

 I just checked with git revision a16251a6d0401c772bd985f4c611caf97ca5e537
 There is less errors, but still somes :

 ffmpeg version N-74650-ga16251a Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
   configuration: --enable-static --disable-shared --disable-asm --enable-
 debug --disable-optimizations --disable-stripping --disable-doc --disable-
 devices --disable-postproc --disable-filters --disable-network --disable-
 bsfs --disable-protocols --enable-protocol=file --disable-filters
 --enable-pic --disable-iconv --disable-zlib --disable-bzlib --disable-xlib
   libavutil      54. 31.100 / 54. 31.100
   libavcodec     56. 58.100 / 56. 58.100
   libavformat    56. 40.101 / 56. 40.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 37.100 /  5. 37.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  2.101 /  1.  2.101
 [hevc @ 0x5732b50] Unknown HEVC profile: 0
     Last message repeated 11 times
 Input #0, hevc, from 'video-H265-1':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: hevc, yuv420p(tv), 1280x720, 25 fps, 25 tbr, 1200k
 tbn, 25 tbc
 [mp4 @ 0x5b15bf0] Codec for stream 0 does not use global headers but
 container format requires global headers
 Output #0, mp4, to 'toto.mp4':
   Metadata:
     encoder         : Lavf56.40.101
     Stream #0:0: Video: hevc ([35][0][0][0] / 0x0023), yuv420p, 1280x720,
 q=2-31, 25 fps, 25 tbr, 1200k tbn, 1200k tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 [mp4 @ 0x5b15bf0] pts has no value
     Last message repeated 35 times
 ==26832==    at 0x1095080: VALGRIND_PRINTF_BACKTRACE (valgrind.h:5631)
 ==26832==    by 0x1095BA4: av_log_default_callback (log.c:346)
 ==26832==    by 0x1095D3B: av_vlog (log.c:374)
 ==26832==    by 0x1095CFB: av_log (log.c:366)
 ==26832==    by 0x41B145: term_exit (ffmpeg.c:313)
 ==26832==    by 0x42B036: transcode (ffmpeg.c:4006)
 ==26832==    by 0x42B549: main (ffmpeg.c:4160)
 ==26832== Conditional jump or move depends on uninitialised value(s)
 ==26832==    at 0x59E4F2: get_ue_golomb_long (intmath.h:62)
 ==26832==    by 0x59EEF4: parse_rps (hevc.c:471)
 ==26832==    by 0x59F2A5: hvcc_parse_sps (hevc.c:562)
 ==26832==    by 0x59F9CC: hvcc_add_nal_unit (hevc.c:783)
 ==26832==    by 0x5A081B: ff_isom_write_hvcc (hevc.c:1135)
 ==26832==    by 0x4D81DB: mov_write_hvcc_tag (movenc.c:1034)
 ==26832==    by 0x4DABCD: mov_write_video_tag (movenc.c:1712)
 ==26832==    by 0x4DB693: mov_write_stsd_tag (movenc.c:1851)
 ==26832==    by 0x4DBDF0: mov_write_stbl_tag (movenc.c:1966)
 ==26832==    by 0x4DCF1A: mov_write_minf_tag (movenc.c:2209)
 ==26832==    by 0x4DD2A5: mov_write_mdia_tag (movenc.c:2263)
 ==26832==    by 0x4DEB76: mov_write_trak_tag (movenc.c:2627)
 ==26832==
 frame=   36 fps=0.0 q=-1.0 Lsize=     273kB time=00:00:01.36
 bitrate=1646.3kbits/s
 video:272kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.410793%
 ==26832==    at 0x1095080: VALGRIND_PRINTF_BACKTRACE (valgrind.h:5631)
 ==26832==    by 0x1095BA4: av_log_default_callback (log.c:346)
 ==26832==    by 0x1095D3B: av_vlog (log.c:374)
 ==26832==    by 0x1095CFB: av_log (log.c:366)
 ==26832==    by 0x41B145: term_exit (ffmpeg.c:313)
 ==26832==    by 0x41BA10: ffmpeg_cleanup (ffmpeg.c:583)
 ==26832==    by 0x4035C6: exit_program (cmdutils.c:119)
 ==26832==    by 0x42B62B: main (in /data/home/mpr/ffmpeg/ffmpeg_g)
 ==26832==
 ==26832== HEAP SUMMARY:
 ==26832==     in use at exit: 40 bytes in 1 blocks
 ==26832==   total heap usage: 1,588 allocs, 1,587 frees, 4,486,574 bytes
 allocated
 ==26832==
 ==26832== LEAK SUMMARY:
 ==26832==    definitely lost: 0 bytes in 0 blocks
 ==26832==    indirectly lost: 0 bytes in 0 blocks
 ==26832==      possibly lost: 0 bytes in 0 blocks
 ==26832==    still reachable: 40 bytes in 1 blocks
 ==26832==         suppressed: 0 bytes in 0 blocks
 ==26832== Rerun with --leak-check=full to see details of leaked memory
 ==26832==
 ==26832== For counts of detected and suppressed errors, rerun with: -v
 ==26832== Use --track-origins=yes to see where uninitialised values come
 from
 ==26832== ERROR SUMMARY: 2 errors from 1 contexts (suppressed: 0 from 0)

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Ticket URL: <https://trac.ffmpeg.org/ticket/4807#comment:3>
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