[GTALUG] ffmpeg question

[Lennart Sorensen]

On Wed, Nov 19, 2014 at 05:37:36PM +0100, Zbigniew Koziol wrote:
> Hello,
> 
> For some here the answer will probably be know right away. That is
> why I am writing, after long googling.
> 
> I would like to create a sort of video presentation from images.
> However, I would like that every slide (image) is displayed for a
> different time duration. This is just the first step; next i would
> like to combine voice with that, but it is probably another problem,
> for later.
> 
> Hence, I have a sequence of images y-%2d.png
> 
> The following works for me:
> 
> ffmpeg -framerate 1/10 -i y-%2d.png -c:v mpeg4 -vf
> "fps=2,format=yuv420p" out.mp4
> 
> And the following works, too:
> 
> ffmpeg -r 1/2 -start_number 7 -i y-%2d.png -c:v mpeg4 -vf
> "fps=2,format=yuv420p" out.mp4
> 
> However, how to control the time of displaying individual images? Is
> that possible at all?
> 
> I thought that something like this may work:
> 
> ffmpeg -r 1/5 -i y-01.png -r 1 -i y-02.png -c:v mpeg4 -vf
> "fps=2,format=yuv420p" out.mp4
> 
> It does not. The first image is displayed, only.
> 
> Kind regards from Poland,

Would this help (never used it)?

Package: photofilmstrip
Priority: optional
Section: video
Installed-Size: 1053
Maintainer: Christian Marillat <marillat at deb-multimedia.org>
Architecture: all
Source: photofilmstrip-dmo
Version: 1:2.1.0-dmo1
Depends: mencoder, python-wxgtk3.0, python-imaging, python (>= 2.7), python (<< 2.8)
Filename: pool/main/p/photofilmstrip-dmo/photofilmstrip_2.1.0-dmo1_all.deb
Size: 213974
MD5sum: b427904ff4813078dd91fc60b459f0a6
SHA1: a4bf7caea86ac7c6fc34493b5eb75abb89a939c2
SHA256: 7b5187db2541040f43f419cd48fe59940b6d80a70b1559750e76bd1030353ce3
SHA512: 8cc44b6a85a12b5586cf00fde9c90de5186b1c57b3bf925988d30a122de1a58a4b7c5284078970371f79dcf956cee7a2ad2bae7cf85c0726420aaa403684ba21
Description: Slideshow creator with Ken Burns effect
 This creates movies out of your pictures in just three steps. First select
 your photos, customize the motion path and render the video. There are
 several output possibilities for VCD, SVCD, DVD up to FULL-HD.
 .
 The effect of the slideshow is known as "Ken Burns". Comments of the
 pictures are generated into a subtitle file. Furthermore an audio file can
 be specified to setup the background music for the slide show.
Description-md5: 076b3664ea936d420a04dc9b354700e2
Bugs: mailto:marillat at deb-multimedia.org
Homepage: http://www.photofilmstrip.org/

-- 
Len Sorensen