[FFmpeg-trac] #4495(avutil:new): date value "now" outputs "2036-02-06 06:28:16"

FFmpeg trac at avcodec.org
Sat Apr 18 22:31:50 CEST 2015


#4495: date value "now" outputs "2036-02-06 06:28:16"
---------------------------------------+--------------------------------
               Reporter:  llogan       |                  Owner:
                   Type:  defect       |                 Status:  new
               Priority:  normal       |              Component:  avutil
                Version:  unspecified  |               Keywords:
             Blocked By:               |               Blocking:
Reproduced by developer:  0            |  Analyzed by developer:  0
---------------------------------------+--------------------------------
 [http://ffmpeg.org/ffmpeg-utils.html#Date Docs] indicate that:

 > If the value is "now" it takes the current (local) time.

 However, at least with mp4 muxer, `creation_time` ends up as `2036-02-06
 06:28:16`. Did not check for regression, or any other option that could
 accept `now`.

 {{{
 $ ./ffmpeg -f lavfi -i testsrc=d=5 -c:v mpeg4 -metadata creation_time=now
 time.mp4
 ffmpeg version N-71511-gdf7c2b2 Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.9.2 (GCC) 20150304 (prerelease)
   configuration: --enable-gpl --enable-libx264
   libavutil      54. 22.101 / 54. 22.101
   libavcodec     56. 34.100 / 56. 34.100
   libavformat    56. 30.100 / 56. 30.100
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 14.100 /  5. 14.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, lavfi, from 'testsrc=d=5':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240
 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
 Output #0, mp4, to 'time.mp4':
   Metadata:
     creation_time   : now
     encoder         : Lavf56.30.100
     Stream #0:0: Video: mpeg4 ( [0][0][0] / 0x0020), yuv420p, 320x240 [SAR
 1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc
     Metadata:
       encoder         : Lavc56.34.100 mpeg4
 Stream mapping:
   Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg4 (native))
 Press [q] to stop, [?] for help
 frame=  125 fps=0.0 q=2.0 Lsize=     200kB time=00:00:05.00 bitrate=
 327.8kbits/s
 video:199kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.688452%
 }}}

 {{{
 $ ./ffmpeg -i time.mp4
 ffmpeg version N-71511-gdf7c2b2 Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.9.2 (GCC) 20150304 (prerelease)
   configuration: --enable-gpl --enable-libx264
   libavutil      54. 22.101 / 54. 22.101
   libavcodec     56. 34.100 / 56. 34.100
   libavformat    56. 30.100 / 56. 30.100
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 14.100 /  5. 14.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'time.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2mp41
     creation_time   : 2036-02-06 06:28:16
     encoder         : Lavf56.30.100
   Duration: 00:00:05.00, start: 0.000000, bitrate: 327 kb/s
     Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D),
 yuv420p, 320x240 [SAR 1:1 DAR 4:3], 325 kb/s, 25 fps, 25 tbr, 12800 tbn,
 25 tbc (default)
     Metadata:
       creation_time   : 2036-02-06 06:28:16
       handler_name    : VideoHandler
 At least one output file must be specified
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4495>
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