#11550: Simple commend -c copy -t ** file.mp4 no longer works
------------------------------------+----------------------------------
Reporter: Levan | Owner: (none)
Type: defect | Status: new
Priority: normal | Component: ffmpeg
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
------------------------------------+----------------------------------
Description changed by Levan:
Old description:
> I just simply wanted to shorten a video and downloaded latest build of
> ffmpeg (ffmpeg-N-119323-g9e1162bdf1-win64-gpl) so i tried the shorten the
> file with -t commend and it produced a corrupt mp4 file however it used
> to work on old build (the last build that this worked was on -
> ffmpeg-N-116058-g2902ed25b5-win64-gpl.zip ( Auto-Build 2024-06-30 12:49)
>
> How to reproduce: just try to shorten the video with newer build
> {{{
> % ffmpeg -i input.mp4 -c copy -t 00:20 output.mp4
>
> }}}
>
> ffmpeg version - ffmpeg-N-119323-g9e1162bdf1-win64-gpl
> built on - autobuild-2025-04-21-12-56
> Here is the test file
New description:
I just simply wanted to shorten a video and downloaded latest build of
ffmpeg (ffmpeg-N-119323-g9e1162bdf1-win64-gpl) so i tried the shorten the
file with -t commend and it produced a corrupt mp4 file however it used to
work on old build (the last build that this worked was on -
ffmpeg-N-116058-g2902ed25b5-win64-gpl.zip ( Auto-Build 2024-06-30 12:49)
How to reproduce: just try to shorten the video with newer build
{{{
% ffmpeg -i input.mp4 -c copy -t 00:20 output.mp4
}}}
ffmpeg version - ffmpeg-N-119323-g9e1162bdf1-win64-gpl
built on - autobuild-2025-04-21-12-56
Here is the test file
https://drive.google.com/file/d/1UYJ7oj1B045kqWqp0qKah4t3i3qp4PHt/view?usp=sharing
Here is the result file
https://drive.google.com/file/d/13BHp5G3c1fV_opQiEYlI7e_OvcoyAd1s/view?usp=sharing
media player classic error log
File Source (Async.)::Output
Media Type 0:
--------------------------
Unknown
AM_MEDIA_TYPE:
majortype: MEDIATYPE_Stream {E436EB83-524F-11CE-9F53-0020AF0BA770}
subtype: Unknown GUID Name {08E22ADA-B715-45ED-9D20-7B87750301D4}
formattype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 0
Media Type 1:
--------------------------
Unknown
AM_MEDIA_TYPE:
majortype: MEDIATYPE_Stream {E436EB83-524F-11CE-9F53-0020AF0BA770}
subtype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
formattype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 0
However this doesn't happens when using old ffmpeg that stated above
--
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11550#comment:1>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
_______________________________________________
FFmpeg-trac mailing list
FFmpeg-trac@avcodec.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-trac
To unsubscribe, visit link above, or email
ffmpeg-trac-requ...@ffmpeg.org with subject "unsubscribe".
