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I’ve got some video from the web in Flash video format (.flv). I want to convert it to h.264.

I’ve got Perian installed. QuickTime seems to play the video fine, but when I use any of the options to export it, I get audio, and a blank white screen instead of the video footage.

Are there any Mac OS X apps that convert FLV to h.264? (Command-line or GUI.)

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possible duplicate of Free video converter software for Mac? – Doug Harris Sep 7 '10 at 17:58
@Doug: definitely in the same ball park, but that question doesn’t mention Flash video, and mine doesn’t specify that the app has to be free. – Paul D. Waite Sep 7 '10 at 18:05
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I can't believe no one mentioned Evom on that thread, either. Dead-simple one-drop conversion to standard iPod format, and free. – ghoppe Sep 7 '10 at 18:44
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Have you tried Evom?

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I have not! But I shall. – Paul D. Waite Sep 7 '10 at 18:02
What a great app, worked perfectly. Well played. – Paul D. Waite Sep 7 '10 at 18:10
Care to elaborate on what's so awesome about Evom @ghoppe? – Ivo Flipse♦ Sep 9 '10 at 11:33
Evom is free, made by "little app factory" (a well known mac developer), and it works fantastic!! – bentford Jul 9 '11 at 6:01
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up vote 1 down vote

You can do this with ffmpeg and no transcoding if the FLV contains an already H264 encoded video (quite common). Here's how I got it (assuming you have git and Xcode installed, e.g. that you can compile)

git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg
cd ffmpeg
./configure --enable-shared --disable-mmx --arch=x86_64
make
make install
ffmpeg -i "file.flv" -vcodec copy -acodec copy file.mkv

Optionally, you can convert the file.mkv to MP4 in Subler

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