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81f6d36c90
This backports avif support from upstream libgd into bundled libgd and exposes the functionality through new imagecreatefromavif() and imageavif() functions. Closes GH-7026. Co-authored-by: Christoph M. Becker <cmbecker69@gmx.de>
73 lines
2.1 KiB
PHP
73 lines
2.1 KiB
PHP
--TEST--
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avif decoding/encoding tests
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--EXTENSIONS--
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gd
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--SKIPIF--
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<?php
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if (!function_exists("imagecreatefrompng") || !function_exists("imagepng")) {
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die("skip png support unavailable");
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}
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if (!function_exists("imagecreatefromavif") || !function_exists("imageavif")) {
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die("skip avif support unavailable");
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}
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?>
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--FILE--
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<?php
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require_once __DIR__ . '/similarity.inc';
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$infile = __DIR__ . '/girl.avif';
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$outfile = __DIR__ . '/test.avif';
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echo 'Decoding AVIF image: ';
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$img = imagecreatefromavif($infile);
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echo_status($img);
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echo 'Default AVIF encoding: ';
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echo_status(imageavif($img, $outfile));
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echo 'Encoding AVIF at quality 70: ';
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echo_status(imageavif($img, $outfile, 70));
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echo 'Encoding AVIF at quality 70 with speed 5: ';
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echo_status(imageavif($img, $outfile, 70, 5));
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echo 'Encoding AVIF with default quality: ';
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echo_status(imageavif($img, $outfile, -1));
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echo 'Encoding AVIF with illegal quality: ';
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echo_status(imageavif($img, $outfile, 1234));
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echo 'Encoding AVIF with illegal speed: ';
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echo_status(imageavif($img, $outfile, 70, 1234));
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echo 'Encoding AVIF losslessly... ';
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echo_status(imageavif($img, $outfile, 100, 0));
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echo "Decoding the AVIF we just wrote...\n";
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$img_from_avif = imagecreatefromavif($outfile);
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// Note we could also forgive a certain number of pixel differences.
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// With the current test image, we just didn't need to.
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echo 'How many pixels are different in the two images? ';
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print_r(calc_image_dissimilarity($img, $img_from_avif));
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unlink($outfile);
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function echo_status($success) {
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echo $success ? "ok\n" : "failed\n";
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}
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?>
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--EXPECT--
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Decoding AVIF image: ok
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Default AVIF encoding: ok
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Encoding AVIF at quality 70: ok
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Encoding AVIF at quality 70 with speed 5: ok
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Encoding AVIF with default quality: ok
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Encoding AVIF with illegal quality: ok
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Encoding AVIF with illegal speed: ok
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Encoding AVIF losslessly... ok
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Decoding the AVIF we just wrote...
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How many pixels are different in the two images? 0
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