share your ffmpeg recipes - GoFuckYourself.com

fris · 11-18-2011, 10:44 AM

anyone got any command line args they can share?

nextri · 11-18-2011, 10:45 AM

I gave up on it and started using pandastream.com.
No idea how many hours I've spent tweaking encoding options. Could never seem to get it quite right..

MaDalton · 11-18-2011, 10:49 AM

worked like a charm for me recently when i really needed it

i used this to create DVD compatible videos from source videos where no encoding program could read the audio track:

ffmpeg -i test.m2ts -acodec mp2 -ab 224k -ar 48000 -vcodec mpeg2video -b:v 8000k -g 15 -r 25 -s 720x576 -sn test.mpg

spent nearly half of saturday to figure it out but the possibilities are endless

evulvmedia · 11-18-2011, 11:01 AM

Encoding for web + mobile, streaming + downloading: mp4 format, 640px width, 720kbps video, 96kbps audio.

This is nice because it gives excellent quality while also working fine on mobile devices, even first-generation iPhone and iPod Touch.

Using the x264 presets it is easy!

Two passes:

ffmpeg -i INPUT -an -pass 1 -s 640xH -vcodec libx264 -profile baseline -preset slow -vpre ipod640 -b 720k -aspect W:H -threads 0 -f ipod -y /dev/null

ffmpeg -i INPUT -acodec libfaac -ar 48000 -ac 2 -ab 96k -async 1 -pass 2 -s 640xH -vcodec libx264 -profile baseline -preset slow -vpre ipod640 -b 720k -aspect W:H -threads 0 -f ipod -metadata "title=TITLE" OUTPUT-1.mp4

You need to specify H in the -s parameter based on the size of the source video (e.g. H=360 for 16:9 aspect ratio). And of course you need to specify W:H for the -aspect parameter.

Finally, you need to adjust the moov atom for streaming:

qt-faststart OUTPUT-1.mp4 OUTPUT.mp4

raymor · 11-18-2011, 11:20 AM

Is there any script for "use the same options as this other video"? Say you have a video that works well on a phone and you want to encode another one with the same codecs, package format, etc.

SmokeyTheBear · 11-18-2011, 11:37 AM

Quote:

Originally Posted by raymor

Is there any script for "use the same options as this other video"? Say you have a video that works well on a phone and you want to encode another one with the same codecs, package format, etc.

wouldn't you just view the video and read it's properties.

besides you are reading the output not the input so if you want your video to have the same output chances are the input is different , and thus the method would also be different.

Bird · 11-18-2011, 11:41 AM

Fuck, all I know how to do is grab a few frames from a video.

ffmpeg -i $input -an -ss 00:00:01 -r 1 -vframes 1 -f mjpeg -y $output

fris · 11-18-2011, 12:11 PM

Quote:

Originally Posted by raymor

Is there any script for "use the same options as this other video"? Say you have a video that works well on a phone and you want to encode another one with the same codecs, package format, etc.

you can create your own presets so its saved parameters

fris · 11-18-2011, 12:12 PM

Quote:

Originally Posted by evulvmedia

Encoding for web + mobile, streaming + downloading: mp4 format, 640px width, 720kbps video, 96kbps audio.

This is nice because it gives excellent quality while also working fine on mobile devices, even first-generation iPhone and iPod Touch.

Using the x264 presets it is easy!

Two passes:

ffmpeg -i INPUT -an -pass 1 -s 640xH -vcodec libx264 -profile baseline -preset slow -vpre ipod640 -b 720k -aspect W:H -threads 0 -f ipod -y /dev/null

ffmpeg -i INPUT -acodec libfaac -ar 48000 -ac 2 -ab 96k -async 1 -pass 2 -s 640xH -vcodec libx264 -profile baseline -preset slow -vpre ipod640 -b 720k -aspect W:H -threads 0 -f ipod -metadata "title=TITLE" OUTPUT-1.mp4

You need to specify H in the -s parameter based on the size of the source video (e.g. H=360 for 16:9 aspect ratio). And of course you need to specify W:H for the -aspect parameter.

Finally, you need to adjust the moov atom for streaming:

qt-faststart OUTPUT-1.mp4 OUTPUT.mp4

do you only encode 1 video for both mobile and web, or two?

raymor · 11-18-2011, 02:23 PM

Quote:

Originally Posted by SmokeyTheBear

wouldn't you just view the video and read it's properties.

I sometimes don't know how to translate some property to an ffmpeg output parameter. I'd like a script that reads the properties and generates the right arguments for ffmpeg.

raymor · 11-18-2011, 02:31 PM

Quote:

Originally Posted by fris

you can create your own presets so its saved parameters

I've like to look at a video YOU and made figure out what presets YOU used so I can use the ones. Obviously that applies only to parameters like codecs which can be determined from the output.

Example:
Assume you have an old phone or DVR which will record and play files in a specific format (size, codec, packaging, etc.). I want to convert another video to be playable on the device. I used the same codec and package type, but parameter is different so it can't play my file. I'd like to use one of it's own native files as a reference, saying "convert this foreign file to have the same format as this native file."

evulvmedia · 11-18-2011, 08:51 PM

Quote:

Originally Posted by fris

do you only encode 1 video for both mobile and web, or two?

only one for both web and mobile

fris · 11-21-2011, 10:16 AM

Quote:

Originally Posted by evulvmedia

only one for both web and mobile

what aspect ratio do you use? i want to try your method

vending_machine · 11-21-2011, 10:53 AM

ffmpeg can blow me.

Quote:

find / -depth -name ffmpeg\* -exec rm -rf {} \;

Socks · 11-21-2011, 10:59 AM

'!cmd_path -y -i !videofile -f flv -crf 24 -vcodec libx264 -vpre slow -threads 0 -acodec libfaac -ar 44100 -ab 192 -s !widthx!height -qscale 1 !convertfile'

acctman · 11-21-2011, 01:23 PM

if you have SoftLayer as your dedicated hoster they have a set of server banks and api's that you can use to process all you movies for free.

Jack Sparrow · 11-21-2011, 01:32 PM

Quote:

Originally Posted by fris

what aspect ratio do you use? i want to try your method

I think the 360 method would work best right?
Most phones are on a 16:9 ratio?!

Just Alex · 11-21-2011, 01:38 PM

Quote:

Originally Posted by fris

anyone got any command line args they can share?

Here you go. Takes all videos in current folder and makes flash

for i in *.wmv; do ffmpeg -i "$i" -f flv -ar 22050 -ab 56 -r 25 -b 650k -s 320x240 `basename $i .wmv`.flv; done

then you make screen prints out of all flv files

for i in *.flv; do ffmpeg -i "$i" -an -ss 00:00:03 -an -r 1 -vframes 10 -s 160x120 -y `basename $i .flv`-%d.jpg; done

You welcome.

fris · 11-22-2011, 11:08 AM

Quote:

Originally Posted by Just Alex

Here you go. Takes all videos in current folder and makes flash

for i in *.wmv; do ffmpeg -i "$i" -f flv -ar 22050 -ab 56 -r 25 -b 650k -s 320x240 `basename $i .wmv`.flv; done

then you make screen prints out of all flv files

for i in *.flv; do ffmpeg -i "$i" -an -ss 00:00:03 -an -r 1 -vframes 10 -s 160x120 -y `basename $i .flv`-%d.jpg; done

You welcome.

wont the 320x240 be a bit small for desktop?

Just Alex · 11-22-2011, 01:47 PM

Quote:

Originally Posted by fris

wont the 320x240 be a bit small for desktop?

Obviously you can change all parameters. I just gave you sample code.

fris · 11-22-2011, 01:55 PM

Quote:

Originally Posted by Just Alex

Obviously you can change all parameters. I just gave you sample code.

ya trying to use one video for desktop and mobile.

pornsprite · 11-27-2011, 07:22 PM

Best thread of the month as far as I am concerned.

Solace · 11-27-2011, 07:36 PM

I can make ffmpeg suck cocks

11-18-2011, 10:44 AM	#1
fris Too lazy to set a custom title Industry Role: Join Date: Aug 2002 Posts: 55,359	share your ffmpeg recipes anyone got any command line args they can share? __________________ Since 1999: 69 Adult Industry awards for Best Hosting Company and professional excellence. WP Stuff

11-18-2011, 10:45 AM	#2
nextri Confirmed User Industry Role: Join Date: May 2004 Location: Norway Posts: 1,661	I gave up on it and started using pandastream.com. No idea how many hours I've spent tweaking encoding options. Could never seem to get it quite right.. __________________ DivaTraffic - Traffic for Models

11-18-2011, 10:49 AM	#3
MaDalton I am Amazing Content! Industry Role: Join Date: Feb 2004 Posts: 39,822	worked like a charm for me recently when i really needed it i used this to create DVD compatible videos from source videos where no encoding program could read the audio track: ffmpeg -i test.m2ts -acodec mp2 -ab 224k -ar 48000 -vcodec mpeg2video -b:v 8000k -g 15 -r 25 -s 720x576 -sn test.mpg spent nearly half of saturday to figure it out but the possibilities are endless __________________ AmazingContent.com - providing only the best content and service since 2003 Monetize your content on Veegaz.com - one of Germanies largest VOD sites Got German traffic? We convert it into money for you! Skype: madalton02826 - Email: oltecconsult [at] gmail [dot] com Last edited by MaDalton; 11-18-2011 at 10:50 AM..

11-18-2011, 11:20 AM	#5
raymor Confirmed User Join Date: Oct 2002 Posts: 3,745	Is there any script for "use the same options as this other video"? Say you have a video that works well on a phone and you want to encode another one with the same codecs, package format, etc. __________________ For historical display only. This information is not current: support@bettercgi.com ICQ 7208627 Strongbox - The next generation in site security Throttlebox - The next generation in bandwidth control Clonebox - Backup and disaster recovery on steroids

11-18-2011, 11:41 AM	#7
Bird Confirmed User Join Date: Jan 2005 Location: Stockton Posts: 4,365	Fuck, all I know how to do is grab a few frames from a video. ffmpeg -i $input -an -ss 00:00:01 -r 1 -vframes 1 -f mjpeg -y $output __________________ ICQ:268731675

11-18-2011, 11:01 AM	#4
evulvmedia Confirmed User Industry Role: Join Date: Jun 2006 Posts: 441	Encoding for web + mobile, streaming + downloading: mp4 format, 640px width, 720kbps video, 96kbps audio. This is nice because it gives excellent quality while also working fine on mobile devices, even first-generation iPhone and iPod Touch. Using the x264 presets it is easy! Two passes: ffmpeg -i INPUT -an -pass 1 -s 640xH -vcodec libx264 -profile baseline -preset slow -vpre ipod640 -b 720k -aspect W:H -threads 0 -f ipod -y /dev/null ffmpeg -i INPUT -acodec libfaac -ar 48000 -ac 2 -ab 96k -async 1 -pass 2 -s 640xH -vcodec libx264 -profile baseline -preset slow -vpre ipod640 -b 720k -aspect W:H -threads 0 -f ipod -metadata "title=TITLE" OUTPUT-1.mp4 You need to specify H in the -s parameter based on the size of the source video (e.g. H=360 for 16:9 aspect ratio). And of course you need to specify W:H for the -aspect parameter. Finally, you need to adjust the moov atom for streaming: qt-faststart OUTPUT-1.mp4 OUTPUT.mp4

11-21-2011, 10:59 AM	#15
Socks Confirmed User Industry Role: Join Date: May 2002 Location: Toronto Posts: 8,475	'!cmd_path -y -i !videofile -f flv -crf 24 -vcodec libx264 -vpre slow -threads 0 -acodec libfaac -ar 44100 -ab 192 -s !widthx!height -qscale 1 !convertfile'

11-21-2011, 01:23 PM	#16
acctman Confirmed User Join Date: Oct 2003 Location: Atlanta Posts: 2,840	if you have SoftLayer as your dedicated hoster they have a set of server banks and api's that you can use to process all you movies for free.

11-27-2011, 07:22 PM	#22
pornsprite Confirmed User Industry Role: Join Date: Dec 2009 Location: Texas Posts: 1,643	Best thread of the month as far as I am concerned. __________________ Go Fuck Yourself

11-27-2011, 07:36 PM	#23
Solace So Fucking Banned Industry Role: Join Date: Nov 2011 Posts: 995	I can make ffmpeg suck cocks