converting flv to avi ?

Mr Green · 2007-02-08 16:39:34

Hi,

Been messing around pulling youtube videos down but would like to convert them to play on my media player

 ffmpeg -i 'video.flv' the_avi_file.avi

this kinda works but you get mp2 ...

 ffmpeg -i 'video.flv' -acodec mp3 -ab 128 the_avi_file.avi

not quite there yet

tried using vlc but would rather use cli so I can bung it in a script

unless there is a tool to do this sort of thing?

TIA

hightower · 2007-02-08 18:41:01

Try mencoder, it's part of the mplayer package.

hightower

Mr Green · 2007-02-08 18:49:05

thanks ;-)

smoon · 2007-02-08 18:50:08

First of all you need to decide what codec you want to use for video and audio - avi is just a container format.

Something like the following mencoder line should do the trick for mpeg4 video with mp3 audio. Note that it is very basic and you probably want to do some more tweaking like specifying audio/video -bitrate, video resolution, etc. But luckily the mencoder manpage has all this stuff documented pretty well

mencoder -oac mp3lame -ovc lavc -lavcopts vcodec=mpeg4 -o output.avi input.flv

Mr Green · 2007-02-08 18:52:31

oh thanks man was just looking at Acidrip ... but tweaking I can handle ;-)

Wow that works great ... video quality will suffer thats normal awesome Bolt Thrower YAY!

Last edited by Mr Green (2007-02-08 18:55:25)

skottish · 2007-02-09 00:55:51

If I understand correctly, FLV files should be h263 for video and mp3 for audio. MPlayer and VLC should be able to handle it.

ffmpeg -i 'video.flv' -acodec copy -vcodec copy the_avi_file.avi

Last edited by skottish (2007-02-09 00:56:35)

Mr Green · 2007-02-09 07:26:23

interesting .... yes playing them is no problem mplayer or vlc but I have a portable media player and its Windows play 4 sure [yuk!] avi works

Last edited by Mr Green (2007-02-09 07:26:38)

skottish · 2007-02-09 15:59:59

Do you know if the media player plays MSMPEG4v2? If so, you can try something like:

ffmpeg -i in_file.flv -acodec copy -vcodec msmpegv2 -b 3000k out_file.avi

You may have to tinker with the bitrate settings to get a good video. This will preserve the audio, but unfortunately any time you remux a file, you'll loose qualtity.

Mr Green · 2007-02-09 16:09:11

yeah I have noticed that but that goes without saying ... would rather have in sync high quality sound to be honest ....

ffmeg has a large range of options ... will check out MSMPEG4v2 as its a play for sure then maybe it will

thanks for your help

dejitarob · 2007-05-03 02:56:54

I found a flv2avi script on the gentoo forums that is useful. The syntax is fl2avi -xvid file.flv file.avi

#!/bin/sh

if [ -z "$1" ]; then
  echo "Usage: $0 {-divx|-xvid} list_of_flv_files"
  exit 1
fi

# video encoding bit rate
V_BITRATE=1000

while [ "$1" ]; do
  case "$1" in
    -divx)
      MENC_OPTS="-ovc lavc -lavcopts \
        vcodec=mpeg4:vbitrate=$V_BITRATE:mbd=2:v4mv:autoaspect"
      ;;
    -xvid)
      MENC_OPTS="-ovc xvid -xvidencopts bitrate=$V_BITRATE:autoaspect"
      ;;
    *)
      if file "$1" | grep -q "Macromedia Flash Video"; then
        mencoder "$1" $MENC_OPTS -vf pp=lb -oac mp3lame \
          -lameopts fast:preset=standard -o \
          "`basename $1 .flv`.avi"
      else
        echo "$1 is not Flash Video. Skipping"
      fi
      ;;
  esac
  shift
done

oli · 2007-05-03 10:58:49

This tool clive is nice too, while you download from e.g. youtube you can convert it automatically in Avi.

http://home.gna.org/clive/ so far I can see, it's not in aur.

aRcHaTe · 2007-05-04 03:32:39

since your are so interessd BUIKD A PKFGBUILD IF YOU PLEASE!!!!!!!!!!!!!!!!!!!

oli · 2007-05-04 07:56:23

>since your are so interessd

Where can you read this? It's just a hint for the initial poster. I have clive in FreeBSD ports, Arch is my 2nd operating system

davin · 2007-05-07 06:39:18

use clive small utility..

Mr Green · 2007-10-15 20:03:40

Found mp4ize but... after conversion sound is mono....clive is a video downloader... it will convert but only by using ffmpeg

If anyone converts flv to mp4 let us know .. read you can use vlc to convert but never tried it

tia

MrG

skottish · 2007-10-16 02:01:24

Mr Green wrote:

If anyone converts flv to mp4 let us know ..

I do it every time I accidentally download a video from youtube. I only use FFmpeg with x264 and FAAC if I want mpeg4 audio output. As always I using subversion builds of FFmpeg and x264. My command line would simply be (without going for good video quality) and keeping the mp3 audio:

ffmpeg -i <input>.flv -vcodec libx264 -acodec copy <output>.mp4

Again without going for quality, but with mpeg4 audio:

ffmpeg -i <input>.flv -vcodec libx264 -acodec mpeg4aac <output>.mp4

You'd probably have to change the codec names if your using FFmpeg from extra. The one in testing will use this naming convention.

barkeelts · 2014-11-19 06:12:39

FLV is a popular format which is widely used for sharing videos online. However, it is not compatible with Windows Media Player, Windows Movie Maker, PS3, Xbox 360, BlackBerry, Adobe Premier, etc. If you intent to enjoy the downloaded FLV video and movie on the above mentioned players or devices, you'd better to convert them to AVI and other popular formats.

Here is a step by step guide to help you easily convert FLV to AVI at: -- url redacted - Trilby --

Hope it is what you are looking for.

Last edited by Trilby (2014-11-20 19:25:06)

jasonwryan · 2014-11-19 06:42:45

barkeelts wrote:

Hope it is what you are looking for.

Unlikely: the thread is seven years old... Please don't necrobump: https://wiki.archlinux.org/index.php/Fo … Bumping.27

Closing

ewaller · 2014-11-20 19:12:18

What is worse, it is known spam source. https://trac.ffmpeg.org/ticket/3988
It is also a first, and last post.

Arch Linux

#1 2007-02-08 16:39:34

converting flv to avi ?

#2 2007-02-08 18:41:01

Re: converting flv to avi ?

#3 2007-02-08 18:49:05

Re: converting flv to avi ?

#4 2007-02-08 18:50:08

Re: converting flv to avi ?

#5 2007-02-08 18:52:31

Re: converting flv to avi ?

#6 2007-02-09 00:55:51

Re: converting flv to avi ?

#7 2007-02-09 07:26:23

Re: converting flv to avi ?

#8 2007-02-09 15:59:59

Re: converting flv to avi ?

#9 2007-02-09 16:09:11

Re: converting flv to avi ?

#10 2007-05-03 02:56:54

Re: converting flv to avi ?

#11 2007-05-03 10:58:49

Re: converting flv to avi ?

#12 2007-05-04 03:32:39

Re: converting flv to avi ?

#13 2007-05-04 07:56:23

Re: converting flv to avi ?

#14 2007-05-07 06:39:18

Re: converting flv to avi ?

#15 2007-10-15 20:03:40

Re: converting flv to avi ?

#16 2007-10-16 02:01:24

Re: converting flv to avi ?

#17 2014-11-19 06:12:39

Re: converting flv to avi ?

#18 2014-11-19 06:42:45

Re: converting flv to avi ?

#19 2014-11-20 19:12:18

Re: converting flv to avi ?

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