How can I convert AVI files to FLV files with the highest quality?

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I want to convert some of the AVI files I recorded (presentations) to FLV so I can host them on a website and offer them to my visitors. I have done this sort of thing before but the quality they came out as would not be good enough for what I plan on doing here.

Does anyone have a link to a guide or any experience they can offer in converting AVI to FLV with minimal quality loss? A lot of my presentations are 720p as well, so I'd want to keep the aspect ratio the same as the source video.

Josh

Posted 2010-03-24T21:55:43.603

Reputation: 122

Answers

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I suggest ffmpeg. If you are on windows, I suggest the most recent autobuild.

ffmpeg -i foo.avi -ar 22050 -qscale 1 bar.flv

ffmpeg is very tweakable, so you might try searching for flv specific encoding options. Also see the ffmpeg docs

Tyler

Posted 2010-03-24T21:55:43.603

Reputation: 4 203

Thank you :) That command actually made bar.flv about 300mb bigger than the source .avi file, so looks like I have some tweaking to do, but this gives me a strong base. Thanks again. – Josh – 2010-03-24T23:37:42.797

@Josh, you could try it without -qscale just to see how it comes out. In theory -sameq uses the same quality as the source. You might also try -qmin 1, -qmax 15 or something similar.

Finally, you may wish to use two pass video encoding. see: -pass at http://ffmpeg.org/ffmpeg-doc.html#SEC10

– Tyler – 2010-03-25T00:46:46.207

Asked: 2010-03-24T21:55:43.603

Viewed: 2 274 times

Active: 2011-08-21T11:09:33.627