[FFmpeg-trac] #9492(undetermined:new): ffmpeg reads wrong timecode
FFmpeg
trac at avcodec.org
Tue Nov 2 20:38:08 EET 2021
#9492: ffmpeg reads wrong timecode
-------------------------------------+-------------------------------------
Reporter: marku | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: timecode | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
'''Summary of the bug:'''
I use ffmpeg to generate proxy files but for some reason the timecode is
wrong. When I open the original file in DaVinci Resolve it always shows
double the timecode that ffmpeg (ffprobe) reads.
e.g. original video in Resolve shows Start TC 00:00:24:00 and ffprobe
shows 00:00:12:00.
When I do anything with the original file in ffmpeg it changes the
timecode to the wrong one.
The timecode is from Fujifilm XT-3 and the one that Resolve shows is the
one from the camera.
'''How to reproduce:'''
Use any command that will create new file.
Command for creating proxy:
{{{
ffmpeg -hwaccel cuda -i DSCF6599.MOV -acodec pcm_s16le -vcodec prores
-profile:v 0 -vf scale=-1:1080 ./Proxy/DSCF6599.MOV
}}}
Copy streams:
{{{
ffmpeg -i ~/Videos/Test/DSCF6599.MOV -map 0 -map_metadata 0 -movflags
use_metadata_tags -c copy -copy_unknown ~/Videos/Test/Proxy/test.MOV
}}}
'''File to reproduce:'''
Video should start at 00:00:24:00, ffmpeg reads 00:00:12:00
https://drive.google.com/file/d/1FA3doe72wN6Z1vQz9ZoBtT2qBOgavn0X/view?usp=sharing
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Ticket URL: <https://trac.ffmpeg.org/ticket/9492>
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