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Show HN: Gifify – Convert any video file to an optimized animated GIF

48 points by vvoyer 12y ago

anonfunction 12y ago
Here's my own video -> gif bash script: https://github.com/montanaflynn/vidtogif https://github.com/montanaflynn/vidtogif And here's a one-liner using ffmpeg and ImageMagick: ffmpeg -i input.mp4 -vf scale=600:-1 -r 5 -f image2pipe -vcodec ppm - | convert - gif:- | convert -layers Optimize - output.gif
- vvoyer 12y ago
  Careful, your script and one liner generates a whopping 1.5mb file for a 3s movie. While gifify generates a 1mb file for a 800 px wide, 20s screencast. https://github.com/pornel/giflossy https://github.com/pornel/giflossy helps a lot, and works with unix pipes too, you can try it. Optimized! :) Also, gifify has lots of options like compression, resizing, speed, colors.. Of course, in the end, it's only a wrapper to ffmpeg - convert - gifsicle (giflossy). But it helps a lot in achieving MOVIE -> GIF. In a command line way or programmatic way (i.e., you can write a server that uses it and stream gifs to the client).
  - anonfunction 12y ago
    Yes I was just looking at your implementation and must say it's better in numerous ways :)
llimllib 12y ago
Why are you using that fork of gifsicle? I went to that repo to read the homepage but it was the unchanged gifsicle README.
- Nyr 12y ago
  It does implement support for lossy LZW compression which I assume he's using for this.
  - vvoyer 12y ago
    Yes giflossy does a very good job at compressing GIFs. Giflossy compression wlil be implemented in gifsicle in the end.
redacted 12y ago
Next, take the Gifify output, upload to gfycat to get a optimised video file. Repeat until convergence.
- vvoyer 12y ago
  I immediately thought of it too, it might be fun to do the movify to transform a gif to a movie, command line.
hetaali 12y ago
If you want to create a gif that represents the complete video in a short gif loop have a look at https://github.com/marlev/gifserver https://github.com/marlev/gifserver "I spent hours googling for a service that creates an animated gif from a video, that represents the complete video. I only found solutions that animated the first 10 frames, the first 30 seconds etc. So i decided to create gifserverthat will represent the complete video with 9 looping frames,no matter how long the original file is."
tiagocesar 12y ago
The people at Buzzfeed will love it :)
vvoyer 12y ago
gifify now supports subtitles and can extract 5 seconds from a 2 hours movies in less than 20 seconds. HF with GIFS

48 points by vvoyer 12y ago

Here's my own video -> gif bash script: https://github.com/montanaflynn/vidtogif https://github.com/montanaflynn/vidtogif And here's a one-liner using ffmpeg and ImageMagick: ffmpeg -i input.mp4 -vf scale=600:-1 -r 5 -f image2pipe -vcodec ppm - | convert - gif:- | convert -layers Optimize - output.gif

vvoyer 12y ago
Careful, your script and one liner generates a whopping 1.5mb file for a 3s movie. While gifify generates a 1mb file for a 800 px wide, 20s screencast. https://github.com/pornel/giflossy https://github.com/pornel/giflossy helps a lot, and works with unix pipes too, you can try it. Optimized! :) Also, gifify has lots of options like compression, resizing, speed, colors.. Of course, in the end, it's only a wrapper to ffmpeg - convert - gifsicle (giflossy). But it helps a lot in achieving MOVIE -> GIF. In a command line way or programmatic way (i.e., you can write a server that uses it and stream gifs to the client).
- anonfunction 12y ago
  Yes I was just looking at your implementation and must say it's better in numerous ways :)

llimllib 12y ago

Why are you using that fork of gifsicle? I went to that repo to read the homepage but it was the unchanged gifsicle README.

Nyr 12y ago
It does implement support for lossy LZW compression which I assume he's using for this.
- vvoyer 12y ago
  Yes giflossy does a very good job at compressing GIFs. Giflossy compression wlil be implemented in gifsicle in the end.

redacted 12y ago

Next, take the Gifify output, upload to gfycat to get a optimised video file. Repeat until convergence.

vvoyer 12y ago
I immediately thought of it too, it might be fun to do the movify to transform a gif to a movie, command line.

hetaali 12y ago

If you want to create a gif that represents the complete video in a short gif loop have a look at https://github.com/marlev/gifserver https://github.com/marlev/gifserver "I spent hours googling for a service that creates an animated gif from a video, that represents the complete video. I only found solutions that animated the first 10 frames, the first 30 seconds etc. So i decided to create gifserverthat will represent the complete video with 9 looping frames,no matter how long the original file is."

tiagocesar 12y ago

The people at Buzzfeed will love it :)

vvoyer 12y ago

gifify now supports subtitles and can extract 5 seconds from a 2 hours movies in less than 20 seconds. HF with GIFS