Difference between revisions of "Video conversion"
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mencoder ''INPUTFILE'' -nosound -ovc lavc -lavcopts vcodec=mpeg4 -vop expand=176:144,scale=176:-2 -o movie.avi -ofps 12 | mencoder ''INPUTFILE'' -nosound -ovc lavc -lavcopts vcodec=mpeg4 -vop expand=176:144,scale=176:-2 -o movie.avi -ofps 12 | ||
| − | + | mplayer -vo null -ao pcm -af resample=8000,volume=+4db:sc ''INPUTFILE'' | |
[[ffmpeg]] -i movie.avi -i audiodump.wav -b 48 -ac 1 -ab 12 -map 0.0 -map 1.0 ''OUTPUTFILE'' | [[ffmpeg]] -i movie.avi -i audiodump.wav -b 48 -ac 1 -ab 12 -map 0.0 -map 1.0 ''OUTPUTFILE'' | ||
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Webmaster, I am the admin at . We profile SEO Plugins for WordPress blogs for on-site and off-site SEO. I'd like to viinte you to check out our recent profile for a pretty amazing plugin which can double or triple traffic for a Worpdress blog. You can delete this comment, I didn't want to comment on your blog, just wanted to drop you a personal message. Thanks, Rich | Webmaster, I am the admin at . We profile SEO Plugins for WordPress blogs for on-site and off-site SEO. I'd like to viinte you to check out our recent profile for a pretty amazing plugin which can double or triple traffic for a Worpdress blog. You can delete this comment, I didn't want to comment on your blog, just wanted to drop you a personal message. Thanks, Rich | ||
| − | + | = TroubleShooting = | |
| + | == Sound is out of sync == | ||
| + | If you convert a video and sound is out of sync after the conversion, you need to look at | ||
| + | * the video player | ||
| + | * the converter | ||
| + | |||
| + | For example using mencoder made a video with sound out of sync. Using -oac pcm resolved this problem. | ||
= See also = | = See also = | ||
Latest revision as of 10:26, 1 March 2020
Contents
convert dv video to avi
dv videos come e.g. from a camcorder.
mencoder test.dv -o test.avi -vf pp=ci <html><acronym title="Output audio codec comes from libavcodec. To list all available audio codes, call mencoder -oac help.">-oac pcm</acronym> <acronym title="Output video codec comes from libavcodec. To list all available codecs, call mencoder -ovc help.">-ovc x264</acronym></html>
OR
/usr/bin/ffmpeg -threads 2 -f dv -i capture003.dv -vcodec h264 -g 30 -deinterlace -b 900k -s 640x360 -aspect 4:3 -acodec mp3 -ab 64k output.avi
convert video to 3gp
3gp videos come e.g. from a mobile phone.
mencoder INPUTFILE -nosound -ovc lavc -lavcopts vcodec=mpeg4 -vop expand=176:144,scale=176:-2 -o movie.avi -ofps 12
mplayer -vo null -ao pcm -af resample=8000,volume=+4db:sc INPUTFILE
ffmpeg -i movie.avi -i audiodump.wav -b 48 -ac 1 -ab 12 -map 0.0 -map 1.0 OUTPUTFILE
convert 3gp-Video to DivX
mencoder -ovc divx4 vid.3gp -o vid.avi
convert video for Palm
mencoder source.mpg -ofps 15 -srate 24000 -oac mp3lame -lameopts cbr:br=32:vol=5:mode=3 -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=96:vhq: \ keyint=300 -vop scale=480:320 -o target.avi
or
mencoder source.mpg -srate 24000 -oac mp3lame -lameopts cbr:br=32:vol5:mode=3\ -fps 30 -ofps 30 -ovc lavc -vop scale=320:240 -o target.avi
Convert a DVD to a file
mencoder dvd://1 -oac mp3lame -lameopts br=192 -ovc lavc -lavcopts vcodec=mpeg4:vhq -o output.avi
Webmaster, I am the admin at . We profile SEO Plugins for WordPress blogs for on-site and off-site SEO. I'd like to viinte you to check out our recent profile for a pretty amazing plugin which can double or triple traffic for a Worpdress blog. You can delete this comment, I didn't want to comment on your blog, just wanted to drop you a personal message. Thanks, Rich
TroubleShooting
Sound is out of sync
If you convert a video and sound is out of sync after the conversion, you need to look at
- the video player
- the converter
For example using mencoder made a video with sound out of sync. Using -oac pcm resolved this problem.
