Re: [FFmpeg-user] Pattern_Type Glob *.JPG wildcard input file support for Windows 10?

[yaofahua--- via ffmpeg-user]

This command may be helpful.
cat *.jpg | ffmpeg -framerate 1/2 -pattern_type -f image2pipe -i - 
-filter_complex 
"scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:-1:-1:color=black,format=yuv420p"
 -r 30 -movflags +faststart output-1280-720.mp4



yaofa...@qq.com
 
From: Mark Dougherty
Date: 2021-07-10 10:16
To: FFMpeg-User
Subject: [FFmpeg-user] Pattern_Type Glob *.JPG wildcard input file support for 
Windows 10?
I am using WIndows 10 with "ffmpeg version 4.4-full_build-www.gyan.dev 
Copyright (c) 2000-2021 the FFmpeg developers built with gcc 10.2.0 (Rev6, 
Built by MSYS2 project)".
 
I am writing a command-line that will create a basic slideshow MP4 video from 
multiple folders of dozens or hundreds of JPG and/or PNG images.  The images 
are sourced from either digital cameras/smartphones or scanned photos 
(typically 600 dpi).
 
So far, I have been successful with this command for a small test group of 9 
JPG files:
 
ffmpeg -framerate 1/2 -i test%%1d.jpg -filter_complex 
"scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:-1:-1:color=black,format=yuv420p"
 -r 30 -movflags +faststart output-1280-720.mp4
 
This command-line works perfectly and renders my JPGs in the correct 
orientation and correct aspect ratio
 
Only one issue remains.... my input file selection requires a more flexible 
"*.JPG" wildcard syntax because I have tens of thousands of images (52K images 
in over 1900 folders) that have a wide variety of naming conventions that don't 
match a simple 1, 2, or 3 digit numeric sequence. And in some cases, the images 
are just randomly named and simply sorted alphabetically by their file names.
 
I have tried two unsuccessful options to provide "*.jpg" wildcard 
functionality...
 
Option #1 (text file of filenames):
 
ffmpeg -framerate 1/2 -f concat -safe 0 -i "Test-ffmpeg.Txt" -filter_complex 
"scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:-1:-1:color=black,format=yuv420p"
 -r 30 -movflags +faststart output.mp4
 
I tried creating an input file list using this syntax: -f concat -safe 0 -i 
"Test-ffmpeg.Txt" but when I run the command, I get a "Option framerate not 
found" fatal error
 
Can I use an input text file with this particular set of encoding and 
processing options?
 
Option #2 (Pattern_Type glob):
 
ffmpeg -framerate 1/2 -pattern_type glob -i "*.jpg" -filter_complex 
"scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:-1:-1:color=black,format=yuv420p"
 -r 30 -movflags +faststart output-1280-720.mp4
 
If I try using -pattern_type glob -i "*.jpg" I receive this fatal error message 
"Pattern type 'glob' was selected but globbing is not supported by this 
libavformat build. *.jpg: Function not implemented'
 
Is there a FFmpeg version (or license) that provides glob support on a Windows 
platform?. I'm certainly willing to pay for it.  Or, in the absence of glob 
wildcard support, if there a way I can accomplish the "*.jpg" wildcard syntax?
 
Thank you,
 
Mark
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