#9337: 'atempo' didn't work unless '-map 0' was added
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Reporter: markfilipak | Owner: (none)
Type: defect | Status: new
Priority: normal | Component: ffmpeg
Version: git-master | Resolution:
Keywords: atempo | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by markfilipak):
Sorry, I guess replying to the email doesn't work. So, I'll repeat my
reply here, now.
Hi Gyan, Thanks.
Actually, it's the other way around; [0:0] & [0:1] are from the graph and
[0:3] & [0:4] are from '-map 0'. Yes, that was surprising, but it's not
really the issue.
Do you want 1.mkv..5.mkv?
With the source -- link provided -- and the scripts,
you can generate 1.mkv..5.mkv in less than a minute,
but I'll attach them if you prefer.
The issue is that without '-map 0' 'atempo' doesn't function. That can be
seen by watching the last 10 seconds of 2.mkv (without '-map 0') v. the
last 10 seconds of 3.mkv (with '-map 0').
3.cmd fixes that -- see 3.mkv -- but the '-map 0' adds the extra tracks.
4.mkv & 5.mkv show which tracks were added by the graph and which were
added by '-map 0'.
- Mark.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9337#comment:4>
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