CODEWITHSUNDEEP
ffmpeg
wojttaa
wojttaa

Reputation: 109

Generate gif from jpeg images using ffmpeg

I want to create a gif image from a jpeg image list, everything works fine, but how can I slow the animation?

Here is my code:

<?php
exec('ffmpeg -f image2 -i thumb/%001d.jpg -vf scale=480x240  out.gif');
?>

Upvotes: 9

Views: 13679

Answers (2)

Gyan
Gyan

Reputation: 93329

To slow down an image sequence, lower its framerate

ffmpeg -f image2 -framerate 10 -i thumb/%001d.jpg -vf scale=480x240  out.gif

Upvotes: 7

MTCoster
MTCoster

Reputation: 6145

You want the -r flag to set the frame rate (in frames per second). From the official documentation:

-r[:stream_specifier] fps (input/output,per-stream)

Set frame rate (Hz value, fraction or abbreviation).

As an input option, ignore any timestamps stored in the file and instead generate timestamps assuming constant frame rate fps. This is not the same as the -framerate option used for some input formats like image2 or v4l2 (it used to be the same in older versions of FFmpeg). If in doubt use -framerate instead of the input option -r.

As an output option, duplicate or drop input frames to achieve constant output frame rate fps.

For example, setting to 30 fps:

ffmpeg -f image2 -i thumb/%001d.jpg -vf scale=480x240 -r 30 out.gif

Note: The -r argument must appear after the input file if you want it to apply to the output

Upvotes: 0

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