Opened 4 years ago

Closed 2 years ago

#4475 closed defect (duplicate)

Input option -t fails with -vcodec copy

Reported by: cehoyos Owned by:
Priority: normal Component: ffmpeg
Version: git-master Keywords:
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Could be considered a regression because -t used to be an output option that was also accepted if specified in front of the input file until 6d77279e

$ ffmpeg -f lavfi -i testsrc -qscale 2 -t 180 -vcodec mpeg4 out.mov
$ ffmpeg -ss 30 -t 60 -i out.mov -vcodec copy out2.mov
ffmpeg version N-71402-ga202fe0 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl
  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. 13.101 /  5. 13.101
  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 'out.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 512
    compatible_brands: qt
    encoder         : Lavf56.30.100
  Duration: 00:03:00.00, start: 0.000000, bitrate: 344 kb/s
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 343 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default)
    Metadata:
      handler_name    : DataHandler
      encoder         : Lavc56.34.100 mpeg4
[mov @ 0x3969a00] Codec for stream 0 does not use global headers but container format requires global headers
Output #0, mov, to 'out2.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 512
    compatible_brands: qt
    encoder         : Lavf56.30.100
    Stream #0:0(eng): Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 320x240 [SAR 1:1 DAR 4:3], q=2-31, 343 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default)
    Metadata:
      handler_name    : DataHandler
      encoder         : Lavc56.34.100 mpeg4
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame= 2256 fps=0.0 q=-1.0 Lsize=    3793kB time=00:01:29.96 bitrate= 345.4kbits/s
video:3782kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.274722%

Change History (2)

comment:1 Changed 2 years ago by barsnick

cehoyos wrote:

frame= 2256 fps=0.0 q=-1.0 Lsize=    3793kB time=00:01:29.96 bitrate= 345.4kbits/s

Interesting, I would have expected it to be either ~00:01:00 (as requested, "-t 60"), or 00:02:30 (180 seconds minus "-ss 30"), if "-t" was being ignored.

BTW, I can't reproduce this with current git master HEAD. When was this fixed (if ever), with which commit?

comment:2 Changed 2 years ago by cehoyos

  • Resolution set to duplicate
  • Status changed from new to closed

Duplicate of ticket #977
Fixed by Simon Thelen in 5b6c0fdb4316ef71ef151e8b0f9137fe64877589

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