Opened 2 months ago

Closed 8 weeks ago

#7212 closed defect (needs_more_info)

-ss before input does not provide proper output

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

Description

Summary of the bug: When using -ss seek option before input file, seeks to correct spot BUT freezes the last video frame so that the output file is the same length as the input file. The audio is cut correctly, but the video is not.
How to reproduce:

% ffmpeg -ss 00:00:xx -i input.mp4 -c copy output.mp4
ffmpeg version 4.0
built on mac

Attachments (3)

ffmpeg-20180516-120457.log (11.6 KB) - added by ryonsabouni 2 months ago.
ffmpeg -report (removed repetitive lines to decrease file size)
colorShort.mp4 (2.3 MB) - added by ryonsabouni 2 months ago.
ffmpeg-git-master.log (93.6 KB) - added by ryonsabouni 2 months ago.

Change History (10)

Changed 2 months ago by ryonsabouni

ffmpeg -report (removed repetitive lines to decrease file size)

comment:1 follow-up: Changed 2 months ago by llogan

  • Priority changed from important to normal
  • Resolution set to invalid
  • Status changed from new to closed
  • Version changed from git-master to unspecified

-ss 3s is invalid syntax. Use -ss 3 or -ss 00:00:03.

comment:2 Changed 2 months ago by ryonsabouni

  • Resolution invalid deleted
  • Status changed from closed to reopened

comment:3 Changed 2 months ago by ryonsabouni

  • Resolution invalid deleted
  • Status changed from closed to reopened

comment:4 in reply to: ↑ 1 Changed 2 months ago by ryonsabouni

Replying to llogan:

-ss 3s is invalid syntax. Use -ss 3 or -ss 00:00:03.

yes it is. try it. Using 3 or 00:00:03 produces the same exact output, I have tried this many times

Last edited 2 months ago by ryonsabouni (previous) (diff)

comment:5 follow-up: Changed 2 months ago by cehoyos

  • Component changed from ffmpeg to undetermined
  • Resolution set to needs_more_info
  • Status changed from reopened to closed

Please test current FFmpeg git head and please provide the input sample.

comment:6 in reply to: ↑ 5 Changed 2 months ago by ryonsabouni

  • Resolution needs_more_info deleted
  • Status changed from closed to reopened
  • Version changed from unspecified to git-master

Replying to cehoyos:

Please test current FFmpeg git head and please provide the input sample.

Double checked that I had git head installed and ran again. Same error. This error happens with any mp4 but I have now provided a sample mp4 that can be used.

This error occurs when using 00:00:03, 3 or 3s as a seek argument. 3 is simply there as an example. Any amount of time will not provide proper output.

Changed 2 months ago by ryonsabouni

Changed 2 months ago by ryonsabouni

comment:7 Changed 8 weeks ago by ryonsabouni

  • Resolution set to needs_more_info
  • Status changed from reopened to closed

new ticket with bettter formatting and input/output files in the works

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