thumb: delete subsequent animation frames

Convert animated GIFs and accidental video to still frame.

diff --git a/thumb/index.php b/thumb/index.php
index 4549b44e6ab67385c52d6168da8b8b529ea16fe4..fbea220b2bf7d48f5b0ae556862063c30271a816 100644 (file)
--- a/thumb/index.php
+++ b/thumb/index.php
@@ -87,6 +87,7 @@ function mkthumb_exec($source, $target, $width, $height)
        }
        $cmd = implode(' ', array_map('escapeshellarg', [
                'convert',
+               '-delete', '1--1',
                '-trim',
                '-background', 'white', '-layers', 'flatten',
                '-resize', "${width}x${height}",