Shell scripts to create video slideshows from images using FFmpeg.

• Transition scripts
• Advanced scripts

• ffmpeg 2.8.x or later

Advanced 'Moving Text' script needs ffmpeg to be build with freetype. If you compile ffmpeg from source you need to provide --enable-libfreetype flag on ./configure. Under macOS, ffmpeg is available under Homebrew, you can install it using --with-freetype option, aka brew install ffmpeg --with-freetype.

Each script creates a video slideshow using 5 photos inside photos folder. Advanced scripts use additional objects & fonts from their respective folders. Output slideshow is an h264 encoded 1280x720 px MPEG-4 video.

Generally, scripts use the following scene arrangement.

photo 1 - 3 seconds
- transition to photo 2 - 1 second
photo 2 - 2 seconds
- transition to photo 3 - 1 second
photo 3 - 2 seconds
- transition to photo 4 - 1 second
photo 4 - 2 seconds
- transition to photo 5 - 1 second
photo 5 - 2 seconds
=======
Total = 15 seconds

• Input images are scaled to fit the screen using scale=w='if(gte(iw/ih,1280/720),min(iw,1280),-1)':h='if(gte(iw/ih,1280/720),-1,min(ih,720))' formula. As an alternative, cropping input images can be implemented by replacing the scale statement with crop=min(iw\,1280):min(ih\,720).

You may notice the following warnings when executing the scripts. Below you can find their reasons and possible fixes.

[swscaler @ 0x............] deprecated pixel format used, make sure you did set range correctly

This warning is printed because input image streams are decoded with yuvj444p pixel format, which is deprecated. You can safely ignore it, ffmpeg users are not effected from this warning.

[out_0_0 @ 0x............] 100 buffers queued in out_0_0, something may be wrong.s dup=. drop=. speed=...

[Parsed_overlay_80 @ 0x............] [framesync @ 0x............] Buffer queue overflow, dropping.

Statements inside filter_complex are ordered into logical groups to give a better understanding of how they work. In this ordering scheme too many streams/statements wait in the buffer queue, which generates these two warnings. If you want to resolve them change the order of statements inside filter_complex and use new streams immediately after they are created.

Past duration 0.xyz too large

Currently push_box and box_in transitions print this warning. setpts=0.5*PTS statements used inside the scripts cause this. If you know how to remove it safely please submit an issue.

How to prevent shake effect for zoompan filter

Feel free to submit issues or pull requests.

This project is licensed under the MIT License with the following exceptions.

Photos inside photos folder are published in the public domain. These photos are:

• Colosseum by Klaus Berdiin Jensen

• The Great Pyramid & Sphinx Eygpt by Dave Bright

• Leaning Tower of Pisa by Image Catalog

• Taj Mahal by juancolado3

• chichen itza by kan_v_c

Snow flake and heart images inside objects folder are downloaded from pngimg.com and pngimg.com, both licensed under the Creative Commons 4.0 BY-NC.

Film strip images inside objects folder are modified from Film Strip by Nevit Dilmen and licensed under Creative Commons Attribution-Share Alike 3.0 Unported.

Falling Sky font inside fonts folder is licensed under the SIL Open Font License (OFL).

• FFmpeg Filters
• FFmpeg Filtering Guide