0002424: kdenlive/melt fail to play clip to the end

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Project

Category

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Date Submitted

Last Update

0002424

Kdenlive

MLT

public

2011-11-26 23:11

2011-11-29 23:54

Reporter

mcfrisk

Assigned To

j-b-m

Priority

normal

Severity

minor

Reproducibility

always

Status

assigned

Resolution

open

Platform

32 bit intel and alike

Debian Linux

OS Version

4.0

Product Version

Recent git

Target Version

Fixed in Version

Summary

0002424: kdenlive/melt fail to play clip to the end

Description

Converted on 60 fps clip to slow motion 30fps with a ffmpeg script. Clip plays fine with mplayer and ffplay but melt and kdenlive get the clip length wrong or don't play it completely.

Steps To Reproduce

Original clip was slowed down with this script, tip found from http://renomath.org/video/linux/slowmot/ [^] :

ffmpeg -i "$f" -f yuv4mpegpipe -pix_fmt yuv420p -y /dev/stdout | \
yuvcorrect -T INTERLACED_TOP_FIRST 2>/dev/null | yuvfps -s 30000:1001 -r 30000:1001 | \
yuvcorrect -T PROGRESSIVE 2>/dev/null | mpeg2enc --no-constraints -f3 -nn -a3 -Ktmpgenc \
-lh -b24000 -V488 -r32 -G18 -q9 -s -o "$f".slow.m2v

Faulty clip:
http://mcfrisk.kapsi.fi/temp/GOPR0009_lauta_180.MP4.slow.m2v [^]

Play it in kdenlive or melt. mplayer and ffplay have no problems with it.

Tags

No tags attached.

Build/Install Method

Manual build from SVN

Attached Files

Relationships

Notes
(0007629) j-b-m (administrator) 2011-11-27 22:56	Not sure the problem is in MLT / Kdenlive. FFmpeg gives a duration of 1.53 seconds for this clip (ffmpeg -i youclip.m2v), which is the duration MLT plays it. FFplay / mplayer still play the file till the end, but I think there still is something wrong with the muxing... Re-wrapping the file in a different container like this: ffmpeg -i yourclip.m2v -acodec copy -vcodec copy test.avi Solves the problem...

(0007638) mcfrisk (reporter) 2011-11-29 23:54	Thanks, rewrapping helps but does not work in place e.g. ffmpeg -i source.m2v -acodec copy -vcodec copy source.m2v (note to self, test before running for a bunch of clips).

Issue History
Date Modified	Username	Field	Change
2011-11-26 23:11	mcfrisk	New Issue
2011-11-27 22:56	j-b-m	Note Added: 0007629
2011-11-27 22:56	j-b-m	Assigned To	=> j-b-m
2011-11-27 22:56	j-b-m	Status	new => feedback
2011-11-29 23:54	mcfrisk	Note Added: 0007638
2011-11-29 23:54	mcfrisk	Status	feedback => assigned