I'm running Kubuntu. I don't want to install any Windows applications in wine. I would like a (relatively simple) command to convert a flash animation (.SWF file) to an animated GIF.
The input .SWF file is only 14.5 KiB and I want to convert the entire thing at best quality. I'm hoping the GIF will be of similar size.
Here's the info on the ffmpeg I have installed:
ffmpeg version 0.10.12-7:0.10.12-1~precise1 Copyright (c) 2000-2014 the FFmpeg developers
built on Apr 26 2014 09:49:36 with gcc 4.6.3
configuration: --arch=amd64 --disable-stripping --enable-pthreads --enable-runtime-cpudetect --extra-version='7:0.10.12-1~precise1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
libavutil 51. 35.100 / 51. 35.100
libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
Best Answer
You don't mention in your post if you've tried the most basic command that should accomplish this:
Assuming that works there are going to be quality problems with it, because GIF is a 256-color format. (Imgur recently extended the file format for GIFV which uses WebM video, but that's a separate topic)
If that didn't work, it's because you don't have a SWF decoder or a GIF encoder. You can run this command to see what codecs/formats are supported by your version of FFMpeg:
The output of that is pretty verbose (it will list everything) and you can use
grep
to cut it down for you:For me I get this:
This shows that my version of FFMpeg supports decoding and encoding GIF and SWF.
You may also want to test converting it to an AVI before converting it to GIF, to see the quality before any GIF problems:
It may get mad about trying to use the
-sameq
flag because SWF doesn't have a "quality". You could also try-b:v 900k
to set the video bitrate to pretty high.Update
The source you linked to can easily be compiled on any Linux system that has GCC and the "zlib" library (almost everything has that) Here is how I compiled it:
You can now run the tool to convert like this:
Cheers