Cecil Westerhof via ffmpeg-user <[email protected]> writes:
When I put before the first chapter:
[CHAPTER]
TIMEBASE=1/1
START=1
END=2
title=
I get:
Input #1, ffmetadata, from 'evaluaties.txt':
Metadata:
title : Improvisations
Duration: 00:16:35.00, start: 0.000000, bitrate: 0 kb/s
Chapter #1:0: start 1.000000, end 2.000000
Metadata:
title :
.
.
.
Output #0, mp4, to '09-ImprovisatiesMetHoofdstukken.mp4':
Metadata:
title : Improvisations
encoder : Lavf58.45.100
Chapter #0:0: start 1.000000, end 2.000000
Metadata:
title :
and:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'09-ImprovisatiesMetHoofdstukken.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : Improvisations
encoder : Lavf58.45.100
Duration: 00:16:35.83, start: 0.000000, bitrate: 2434 kb/s
Chapter #0:0: start 0.000000, end 105.000000
Metadata:
title :
> I am playing with ffmpeg again. I got a few questions, so I will be
> posting them in the near future.
>
> But I have one very strange problem that is kind of urgent.
>
> I have a metafile to create chapters. It works OK except for the first
> chapter.
>
> My metafile starts with:
> ;FFMETADATA1
> title=Improvisations
>
> [CHAPTER]
> TIMEBASE=1/1
> START=105
> END=239
> title=Just a test case
>
> When creating the file with the chapters I see:
> Input #1, ffmetadata, from 'evaluaties.txt':
> Metadata:
> title : Improvisations
> Duration: 00:16:35.00, start: 0.000000, bitrate: 0 kb/s
> Chapter #1:0: start 105.000000, end 239.000000
> ^^^^^^^^^^
> Metadata:
> title : Just a test case
> .
> .
> .
> Output #0, mp4, to '09-ImprovisatiesMetHoofdstukken.mp4':
> Metadata:
> title : Improvisations
> encoder : Lavf58.45.100
> Chapter #0:0: start 105.000000, end 239.000000
> ^^^^^^^^^^
> Metadata:
> title : Just a test case
>
> But with ffprobe I am seeing:
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
> '09-ImprovisatiesMetHoofdstukken.mp4':
> Metadata:
> major_brand : isom
> minor_version : 512
> compatible_brands: isomiso2avc1mp41
> title : Improvisations
> encoder : Lavf58.45.100
> Duration: 00:16:35.83, start: 0.000000, bitrate: 2434 kb/s
> Chapter #0:0: start 0.000000, end 240.000000
> ^^^^^^^^
> Metadata:
> title : Just a test case
>
> What could be happening here?
>
> I am using Debian 11 and ffmpeg version 4.3.2-0+deb11u2.
>
> I could probably solve it with a dummy chapter of a second at the
> beginning, but would prefer a better solution.
--
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof
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