[FFmpeg-trac] #7651(undetermined:open): Corrupted start of mp4 file after "-ss 0 -to XXX -c copy"

[FFmpeg]

#7651: Corrupted start of mp4 file after "-ss 0 -to XXX -c copy"
-------------------------------------+-------------------------------------
             Reporter:  v0lt         |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  mov          |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  1
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * keywords:   => mov
 * status:  new => open
 * reproduced:  0 => 1


Comment:

 For future tickets: Do not use `-hide_banner` and provide the command line
 you tested together with the complete, uncut console output to make your
 tickets valid.
 If there is an issue it is a regression since 3fa72de8 / 56ee3f9d
 {{{
 $ ffmpeg -i movie_cut.mp4 -vcodec copy -acodec copy -ss 0 -t 10 out.mov
 ffmpeg version N-93028-gd8ebfd1 Copyright (c) 2000-2019 the FFmpeg
 developers
   built with gcc 6.4.0 (GCC)
   configuration: --enable-opengl --enable-gpl --enable-libxml2 --enable-
 gnutls --enable-gmp --enable-version3 --enable-libx264
   libavutil      56. 26.100 / 56. 26.100
   libavcodec     58. 44.100 / 58. 44.100
   libavformat    58. 26.100 / 58. 26.100
   libavdevice    58.  6.101 / 58.  6.101
   libavfilter     7. 48.100 /  7. 48.100
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
   libpostproc    55.  4.100 / 55.  4.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'movie_cut.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: isommp42
     creation_time   : 2018-10-21T16:02:52.000000Z
   Duration: 00:40:34.73, start: 0.000000, bitrate: 8 kb/s
     Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
 bt709), 1280x720 [SAR 1:1 DAR 16:9], 510 kb/s, 25 fps, 25 tbr, 90k tbn, 50
 tbc (default)
     Metadata:
       creation_time   : 2018-10-21T16:02:52.000000Z
       handler_name    : ISO Media file produced by Google Inc. Created on:
 10/21/2018.
     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
 stereo, fltp, 125 kb/s (default)
     Metadata:
       creation_time   : 2018-10-21T16:02:52.000000Z
       handler_name    : ISO Media file produced by Google Inc. Created on:
 10/21/2018.
 Output #0, mov, to 'out.mov':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: isommp42
     encoder         : Lavf58.26.100
     Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
 bt709), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 510 kb/s, 25 fps, 25 tbr, 90k
 tbn, 90k tbc (default)
     Metadata:
       creation_time   : 2018-10-21T16:02:52.000000Z
       handler_name    : ISO Media file produced by Google Inc. Created on:
 10/21/2018.
     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
 stereo, fltp, 125 kb/s (default)
     Metadata:
       creation_time   : 2018-10-21T16:02:52.000000Z
       handler_name    : ISO Media file produced by Google Inc. Created on:
 10/21/2018.
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 frame=  123 fps=0.0 q=-1.0 Lsize=     442kB time=00:00:09.98 bitrate=
 362.3kbits/s speed=4.38e+03x
 video:282kB audio:154kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 1.417745%
 }}}
 {{{
 $ ffmpeg -i out.mov
 ffmpeg version N-93028-gd8ebfd1 Copyright (c) 2000-2019 the FFmpeg
 developers
   built with gcc 6.4.0 (GCC)
   configuration: --enable-opengl --enable-gpl --enable-libxml2 --enable-
 gnutls --enable-gmp --enable-version3 --enable-libx264
   libavutil      56. 26.100 / 56. 26.100
   libavcodec     58. 44.100 / 58. 44.100
   libavformat    58. 26.100 / 58. 26.100
   libavdevice    58.  6.101 / 58.  6.101
   libavfilter     7. 48.100 /  7. 48.100
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
   libpostproc    55.  4.100 / 55.  4.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x3dc1240] Could not find codec parameters for
 stream 0 (Video: h264 (avc1 / 0x31637661), none, 1280x720, 469 kb/s):
 unspecified pixel format
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 512
     compatible_brands: qt
     encoder         : Lavf58.26.100
   Duration: 00:00:10.01, start: 0.000000, bitrate: 361 kb/s
     Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), none, 1280x720, 469
 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 90k tbn, 180k tbc (default)
     Metadata:
       handler_name    : ISO Media file produced by Google Inc. Created on:
 10/21/2018.
     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
 stereo, fltp, 125 kb/s (default)
     Metadata:
       handler_name    : ISO Media file produced by Google Inc. Created on:
 10/21/2018.
 At least one output file must be specified
 }}}
 The issue disappears with `-analyzeduration 6M`.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7651#comment:2>
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