[FFmpeg-trac] #2045(avformat:new): FPE when copying timecode track

[FFmpeg]

#2045: FPE when copying timecode track
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  important  |              Component:  avformat
                Version:  git-       |               Keywords:  crash fpe
  master                             |  regression
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 Using the sample from ticket #236
 {{{
 (gdb) r -i fcp_export8.mov -codec copy -map 0 out.mov
 Starting program: /home/cehoyos/Projects/cehoyos/FFmpeg/ffmpeg_g -i
 fcp_export8.mov -codec copy -map 0 out.mov
 [Thread debugging using libthread_db enabled]
 Using host libthread_db library "/lib64/libthread_db.so.1".
 ffmpeg version N-47976-g1166fc0 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Dec 19 2012 09:33:55 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --disable-indev=jack
   libavutil      52. 12.100 / 52. 12.100
   libavcodec     54. 80.100 / 54. 80.100
   libavformat    54. 49.102 / 54. 49.102
   libavdevice    54.  3.102 / 54.  3.102
   libavfilter     3. 28.102 /  3. 28.102
   libswscale      2.  1.103 /  2.  1.103
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 Guessed Channel Layout for  Input Stream #0.1 : stereo
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'fcp_export8.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2010-03-03 06:08:19
     timecode        : 00:00:00;00
   Duration: 00:00:00.14, start: 0.000000, bitrate: 35204 kb/s
     Stream #0:0(eng): Video: dvvideo (dvc  / 0x20637664), yuv411p, 720x480
 [SAR 8:9 DAR 4:3], 28771 kb/s, SAR 10:11 DAR 15:11, 29.97 fps, 29.97 tbr,
 2997 tbn, 29.97 tbc
     Metadata:
       creation_time   : 2010-03-03 06:08:19
       handler_name    : Apple Alias Data Handler
       timecode        : 01:00:00;00
     Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz,
 stereo, s16, 1536 kb/s
     Metadata:
       creation_time   : 2010-03-03 06:08:19
       handler_name    : Apple Alias Data Handler
     Stream #0:2(eng): Data: none (tmcd / 0x64636D74)
     Metadata:
       creation_time   : 2010-03-03 06:08:19
       handler_name    : Apple Alias Data Handler
       timecode        : 01:00:00;00
     Stream #0:3(eng): Data: none (tmcd / 0x64636D74)
     Metadata:
       creation_time   : 2010-03-03 06:08:19
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:00;00
     Stream #0:4(eng): Data: none (tmcd / 0x64636D74)
     Metadata:
       creation_time   : 2010-03-03 06:08:19
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:00;00
 [mov @ 0x15d1d60] You requested a copy of the original timecode track so
 timecode metadata are now ignored
     Last message repeated 2 times
 Output #0, mov, to 'out.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     timecode        : 00:00:00;00
     encoder         : Lavf54.49.102
     Stream #0:0(eng): Video: dvvideo (dvc  / 0x20637664), yuv411p, 720x480
 [SAR 10:11 DAR 15:11], q=2-31, 28771 kb/s, 29.97 fps, 11988 tbn, 2997 tbc
     Metadata:
       creation_time   : 2010-03-03 06:08:19
       handler_name    : Apple Alias Data Handler
       timecode        : 01:00:00;00
     Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz,
 stereo, 1536 kb/s
     Metadata:
       creation_time   : 2010-03-03 06:08:19
       handler_name    : Apple Alias Data Handler
     Stream #0:2(eng): Data: none (tmcd / 0x64636D74)
     Metadata:
       creation_time   : 2010-03-03 06:08:19
       handler_name    : Apple Alias Data Handler
       timecode        : 01:00:00;00
     Stream #0:3(eng): Data: none (tmcd / 0x64636D74)
     Metadata:
       creation_time   : 2010-03-03 06:08:19
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:00;00
     Stream #0:4(eng): Data: none (tmcd / 0x64636D74)
     Metadata:
       creation_time   : 2010-03-03 06:08:19
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:00;00
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
   Stream #0:2 -> #0:2 (copy)
   Stream #0:3 -> #0:3 (copy)
   Stream #0:4 -> #0:4 (copy)
 Press [q] to stop, [?] for help

 Program received signal SIGFPE, Arithmetic exception.
 0x0000000000524a57 in mov_write_tmcd_tag (track=0x15d4960, pb=0x15d8020)
     at libavformat/movenc.c:1150
 1150        int nb_frames = (track->timescale + frame_duration/2) /
 frame_duration;
 (gdb) bt
 #0  0x0000000000524a57 in mov_write_tmcd_tag (track=0x15d4960,
 pb=0x15d8020)
     at libavformat/movenc.c:1150
 #1  mov_write_stsd_tag (track=0x15d4960, pb=0x15d8020) at
 libavformat/movenc.c:1202
 #2  mov_write_stbl_tag (track=0x15d4960, pb=0x15d8020) at
 libavformat/movenc.c:1301
 #3  mov_write_minf_tag (track=0x15d4960, pb=0x15d8020) at
 libavformat/movenc.c:1515
 #4  mov_write_mdia_tag (track=0x15d4960, pb=0x15d8020) at
 libavformat/movenc.c:1562
 #5  mov_write_trak_tag (st=0x15d31a0, track=0x15d4960, mov=0x15b41a0,
 pb=0x15d8020)
     at libavformat/movenc.c:1803
 #6  mov_write_moov_tag (pb=0x15d8020, mov=0x15b41a0, s=0x15d1d60)
     at libavformat/movenc.c:2350
 #7  0x00000000005283d5 in mov_write_trailer (s=0x15d1d60) at
 libavformat/movenc.c:3886
 #8  0x000000000053d13e in av_write_trailer (s=0x15d1d60) at
 libavformat/mux.c:775
 #9  0x000000000045263a in transcode () at ffmpeg.c:3064
 #10 main (argc=<optimized out>, argv=<optimized out>) at ffmpeg.c:3218
 }}}
 Not reproducible when only copying audio and/or video.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2045>
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