Anyone from here is a ffmpeg expert? - GoFuckYourself.com

R3nato · 12-06-2015, 07:09 AM

Hello,

I need a help from a ffmpeg expert. I want the ffmpeg to start encoding after 20 seconds of video. So basically to cut the start of the video. Any of you knows to command I have to add in ffmpeg command line?

Thanks and waiting for your answers

hand-held · 12-06-2015, 07:17 AM

https://trac.ffmpeg.org/wiki/Seeking

R3nato · 12-06-2015, 07:23 AM

I know that site, but practicaly that makes image frames. I need to cut the first 20 seconds of the movie.

hand-held · 12-06-2015, 07:28 AM

-ss is just the start time, so -ss 20 will start your encode 20 seconds in.

R3nato · 12-06-2015, 08:14 AM

$ffmpeg_command = "-acodec libfaac -ss 25 -keyint_min 20 -r 20 -vcodec libx264 -crf 22 -b 1000k -bt 1000k -y -v 0 -bf 16 -threads 0"; //settings for ffmpeg encoding

I added but is not starting the encode in 20 seconds

daviking · 12-06-2015, 08:27 AM

i use this in a bat file on pc:
md new
for %%a in ("*mp4") do ffmpeg -ss 20 -t 20 -i "%%a" -vcodec copy -movflags faststart -acodec copy "new\%%~na.mp4"
pause

sarettah · 12-06-2015, 08:31 AM

Quote:

Originally Posted by R3nato

$ffmpeg_command = "-acodec libfaac -ss 25 -keyint_min 20 -r 20 -vcodec libx264 -crf 22 -b 1000k -bt 1000k -y -v 0 -bf 16 -threads 0"; //settings for ffmpeg encoding

You have -ss 25 in that command string, so the encoding should start 25 seconds in using that.

.

R3nato · 12-06-2015, 08:38 AM

Should start but is not starting. Starts from 0

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candyflip · 12-06-2015, 10:05 AM

I'm not an expert. I just use this:

iFFmpeg

NemesisEnforcer · 12-06-2015, 10:14 AM

Quote:

Originally Posted by candyflip

I'm not an expert. I just use this:

iFFmpeg

... or myFFmpeg

12-06-2015, 07:09 AM	#1
R3nato Registered User Join Date: Jun 2007 Posts: 78	Anyone from here is a ffmpeg expert? Hello, I need a help from a ffmpeg expert. I want the ffmpeg to start encoding after 20 seconds of video. So basically to cut the start of the video. Any of you knows to command I have to add in ffmpeg command line? Thanks and waiting for your answers __________________ Fap Tube XXX - probably the best tube from my room!

12-06-2015, 07:17 AM	#2
hand-held Confirmed User Join Date: Sep 2006 Location: WA Posts: 136	https://trac.ffmpeg.org/wiki/Seeking __________________ Pimp pimp... hooray! Pimp pimp... hooray!

12-06-2015, 07:23 AM	#3
R3nato Registered User Join Date: Jun 2007 Posts: 78	I know that site, but practicaly that makes image frames. I need to cut the first 20 seconds of the movie. __________________ Fap Tube XXX - probably the best tube from my room!

12-06-2015, 07:28 AM	#4
hand-held Confirmed User Join Date: Sep 2006 Location: WA Posts: 136	-ss is just the start time, so -ss 20 will start your encode 20 seconds in. __________________ Pimp pimp... hooray! Pimp pimp... hooray!

12-06-2015, 08:14 AM	#5
R3nato Registered User Join Date: Jun 2007 Posts: 78	$ffmpeg_command = "-acodec libfaac -ss 25 -keyint_min 20 -r 20 -vcodec libx264 -crf 22 -b 1000k -bt 1000k -y -v 0 -bf 16 -threads 0"; //settings for ffmpeg encoding I added but is not starting the encode in 20 seconds __________________ Fap Tube XXX - probably the best tube from my room!

12-06-2015, 08:27 AM	#6
daviking Confirmed User Join Date: Apr 2007 Posts: 275	i use this in a bat file on pc: md new for %%a in ("*mp4") do ffmpeg -ss 20 -t 20 -i "%%a" -vcodec copy -movflags faststart -acodec copy "new\%%~na.mp4" pause

12-06-2015, 08:38 AM	#8
R3nato Registered User Join Date: Jun 2007 Posts: 78	Should start but is not starting. Starts from 0 Hot teen surprises stud during her virgin sex with her naughty antics __________________ Fap Tube XXX - probably the best tube from my room!

12-06-2015, 10:05 AM	#9
candyflip Carpe Visio Industry Role: Join Date: Jul 2002 Location: New York Posts: 43,064	I'm not an expert. I just use this: iFFmpeg __________________ Spend you some brain. Email Me