CODEWITHSUNDEEP
linuxflashvideoffmpegflash-video
Naota
Naota

Reputation: 668

How to convert flv to avi using ffmpeg high quality

Need to convert flv files to avi or mov, trying out ffmpeg but the output quality is terrible. How can I get the video output to be on par quality with the source?

I thought ffmpeg -i name.flv -s 320x... name.avi would do it, but no good.

Upvotes: 35

Views: 61399

Answers (4)

Saad Anees
Saad Anees

Reputation: 1430

To preserve quality use -qscale 0.

For example ffmpeg.exe -i InputVid.avi -qscale 0 OutputVid.mp4

I converted my 1.64 GB avi video to 4.35 MB mp4 file.

Upvotes: 5

Semertzidis Aris
Semertzidis Aris

Reputation: 175

There is also another solution found on the internet and works like charm!

Just use same quality parameter -sameq.

ffmpeg.exe -i video.flv -sameq outputVideo.avi

Actually the command sameq is not same quality. In order to successfully do it this one must be applied: in case you have multiple files to do here is the complete command

for %i in (*.flv) do ffmpeg -i "%i" -q:a 0 -q:v 0 "%i".avi

Upvotes: 9

Elby
Elby

Reputation: 1674

This is a Good solutions 

ffmpeg -async 1 -i inputVideo.flv -f avi -b 700k -qscale 0 -ab 160k -ar 44100 outputVideo.avi

Or Used following one 

ffmpeg -loglevel 0 -async 1 -i inputVideo.flv -f avi -b 700k -sameq -ab 160k -ar 44100 outputVideo.avi

Upvotes: 16

laurent
laurent

Reputation: 90853

That's the command I was using for a ffmpeg project, the quality should be good enough. If not, try increasing the bitrate (-b argument):

ffmpeg -i input.flv -ar 22050 -b 2048k output.avi

Upvotes: 30

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