Opened 5 days ago

Closed 7 hours 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 5 days ago.
ffmpeg -report (removed repetitive lines to decrease file size)
colorShort.mp4 (2.3 MB) - added by ryonsabouni 5 days ago.
ffmpeg-git-master.log (93.6 KB) - added by ryonsabouni 5 days ago.

Change History (10)

Changed 5 days ago by ryonsabouni

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

comment:1 follow-up: Changed 5 days 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 5 days ago by ryonsabouni

  • Resolution invalid deleted
  • Status changed from closed to reopened

comment:3 Changed 5 days ago by ryonsabouni

  • Resolution invalid deleted
  • Status changed from closed to reopened

comment:4 in reply to: ↑ 1 Changed 5 days 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 5 days ago by ryonsabouni (previous) (diff)

comment:5 follow-up: Changed 5 days 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 5 days 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 5 days ago by ryonsabouni

Changed 5 days ago by ryonsabouni

comment:7 Changed 7 hours 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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