Added suport for AVIF to getimagesize().

Author: y-hashida

ext/standard/image.c

@@ -53,6 +53,7 @@ PHPAPI const char php_sig_iff[4] = {'F','O','R','M'};
 PHPAPI const char php_sig_ico[4] = {(char)0x00, (char)0x00, (char)0x01, (char)0x00};
 PHPAPI const char php_sig_riff[4] = {'R', 'I', 'F', 'F'};
 PHPAPI const char php_sig_webp[4] = {'W', 'E', 'B', 'P'};
+PHPAPI const char php_sig_avif[4] = {'a', 'v', 'i', 'f'};
 
 /* REMEMBER TO ADD MIME-TYPE TO FUNCTION php_image_type_to_mime_type */
 /* PCX must check first 64bytes and byte 0=0x0a and byte2 < 0x06 */
@@ -91,6 +92,7 @@ PHP_MINIT_FUNCTION(imagetypes)
 	REGISTER_LONG_CONSTANT("IMAGETYPE_XBM",     IMAGE_FILETYPE_XBM,     CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("IMAGETYPE_ICO",     IMAGE_FILETYPE_ICO,     CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("IMAGETYPE_WEBP",	IMAGE_FILETYPE_WEBP,	CONST_CS | CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("IMAGETYPE_AVIF",	IMAGE_FILETYPE_AVIF,	CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("IMAGETYPE_UNKNOWN", IMAGE_FILETYPE_UNKNOWN, CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("IMAGETYPE_COUNT",   IMAGE_FILETYPE_COUNT,   CONST_CS | CONST_PERSISTENT);
 	return SUCCESS;
@@ -1165,6 +1167,103 @@ static struct gfxinfo *php_handle_webp(php_stream * stream)
 }
 /* }}} */
 
+/* {{{ php_handle_avif
+ */
+static struct gfxinfo *php_handle_avif(php_stream * stream) {
+	struct gfxinfo *result = NULL;
+	unsigned int width = 0, height = 0;
+	unsigned char channels = 0, bits = 0, i, bits_tmp;
+	unsigned int size, type;
+	size_t begin, end, pos = 0;
+	int check_ispe = 0, check_pixi = 0, eof;
+
+	if (php_stream_seek(stream, 0, SEEK_SET)) {
+		return NULL;
+	}
+	for(;;) {
+		eof = php_stream_eof(stream);
+		if (eof == -1) {
+			return NULL;
+		} else if ((check_ispe == 1 && check_pixi == 1) || eof == 1) {
+			break;
+		}
+
+		begin = pos;
+		size  = php_read4(stream); pos += 4;
+		type  = php_read4(stream); pos += 4;
+		end   = begin + size;
+
+		switch (type) {
+			case 1835365473u:    /* meta */
+				if (php_stream_seek(stream, 4, SEEK_CUR)) {
+					return NULL;
+				}
+				pos += 4;
+				continue;
+
+			case 1768977008u:    /* iprp */
+			case 1768973167u:    /* ipco */
+				continue;
+
+			case 1769173093u:    /* ispe */
+				if (php_stream_seek(stream, 4, SEEK_CUR)) {
+					return NULL;
+				}
+				pos += 4;
+				width  = php_read4(stream); pos += 4;
+				height = php_read4(stream); pos += 4;
+				check_ispe = 1;
+				break;
+
+			case 1885960297u:    /* pixi */
+				if (php_stream_seek(stream, 4, SEEK_CUR)) {
+					return NULL;
+				}
+				pos += 4;
+
+				/* channels */
+				if (php_stream_read(stream, (char *)&channels, 1) != 1) {
+					return NULL;
+				}
+				pos++;
+
+				/* bits */
+				for (i = 0; i < channels; i++) {
+					if (php_stream_read(stream, (char *)&bits_tmp, 1) != 1) {
+						return NULL;
+					}
+					pos++;
+
+					if (bits_tmp > bits) {
+						bits = bits_tmp;
+					}
+				}
+				check_pixi = 1;
+				break;
+
+			default:
+				break;
+		}
+
+		pos = end;
+		if (php_stream_seek(stream, end, SEEK_SET)) {
+			return NULL;
+		}
+	}
+
+	result = (struct gfxinfo *) ecalloc(1, sizeof(struct gfxinfo));
+	if (result == NULL) {
+		return NULL;
+	}
+
+	result->width    = width;
+	result->height   = height;
+	result->bits     = bits;
+	result->channels = channels;
+	return result;
+}
+/* }}} */
+
 /* {{{ php_image_type_to_mime_type
  * Convert internal image_type to mime type */
 PHPAPI char * php_image_type_to_mime_type(int image_type)
@@ -1200,6 +1299,8 @@ PHPAPI char * php_image_type_to_mime_type(int image_type)
 			return "image/vnd.microsoft.icon";
 		case IMAGE_FILETYPE_WEBP:
 			return "image/webp";
+		case IMAGE_FILETYPE_AVIF:
+			return "image/avif";
 		default:
 		case IMAGE_FILETYPE_UNKNOWN:
 			return "application/octet-stream"; /* suppose binary format */
@@ -1284,6 +1385,9 @@ PHP_FUNCTION(image_type_to_extension)
 		case IMAGE_FILETYPE_WEBP:
 			imgext = ".webp";
 			break;
+		case IMAGE_FILETYPE_AVIF:
+			imgext = ".avif";
+			break;
 	}
 
 	if (imgext) {
@@ -1366,6 +1470,8 @@ PHPAPI int php_getimagetype(php_stream * stream, char *input, char *filetype)
 /* BYTES READ: 12 */
    	if (twelve_bytes_read && !memcmp(filetype, php_sig_jp2, 12)) {
 		return IMAGE_FILETYPE_JP2;
+	} else if (twelve_bytes_read && !memcmp(filetype+8, php_sig_avif, 4)) {
+		return IMAGE_FILETYPE_AVIF;
 	}
 
 /* AFTER ALL ABOVE FAILED */
@@ -1450,6 +1556,9 @@ static void php_getimagesize_from_stream(php_stream *stream, char *input, zval *
 		case IMAGE_FILETYPE_WEBP:
 			result = php_handle_webp(stream);
 			break;
+		case IMAGE_FILETYPE_AVIF:
+			result = php_handle_avif(stream);
+			break;
 		default:
 		case IMAGE_FILETYPE_UNKNOWN:
 			break;

ext/standard/php_image.h

@@ -49,6 +49,7 @@ typedef enum
   IMAGE_FILETYPE_XBM,
   IMAGE_FILETYPE_ICO,
   IMAGE_FILETYPE_WEBP,
+  IMAGE_FILETYPE_AVIF,
 /* WHEN EXTENDING: PLEASE ALSO REGISTER IN image.c:PHP_MINIT_FUNCTION(imagetypes) */
   IMAGE_FILETYPE_COUNT
 } image_filetype;

ext/standard/tests/image/getimagesize.phpt

@@ -23,7 +23,7 @@ GetImageSize()
 	var_dump($result);
 ?>
 --EXPECT--
-array(16) {
+array(17) {
   ["test-1pix.bmp"]=>
   array(6) {
     [0]=>
@@ -268,4 +268,21 @@ array(16) {
     ["mime"]=>
     string(10) "image/tiff"
   }
+  ["test8pix.avif"]=>
+  array(7) {
+    [0]=>
+    int(8)
+    [1]=>
+    int(1)
+    [2]=>
+    int(19)
+    [3]=>
+    string(20) "width="8" height="1""
+    ["bits"]=>
+    int(8)
+    ["channels"]=>
+    int(3)
+    ["mime"]=>
+    string(10) "image/avif"
+  }
 }

ext/standard/tests/image/image_type_to_extension.phpt

@@ -23,7 +23,8 @@ image_type_to_extension()
         "IMAGETYPE_WBMP"     => IMAGETYPE_WBMP,
         "IMAGETYPE_JPEG2000" => IMAGETYPE_JPEG2000,
         "IMAGETYPE_XBM"      => IMAGETYPE_XBM,
-        "IMAGETYPE_WEBP"     => IMAGETYPE_WEBP
+        "IMAGETYPE_WEBP"     => IMAGETYPE_WEBP,
+        "IMAGETYPE_AVIF"     => IMAGETYPE_AVIF
     );
     foreach($constants as $name => $constant) {
         printf("Constant: %s\n\tWith dot: %s\n\tWithout dot: %s\n", $name, image_type_to_extension($constant), image_type_to_extension($constant, false));
@@ -85,6 +86,9 @@ Constant: IMAGETYPE_XBM
 Constant: IMAGETYPE_WEBP
 	With dot: .webp
 	Without dot: webp
+Constant: IMAGETYPE_AVIF
+	With dot: .avif
+	Without dot: avif
 bool(false)
 bool(false)
 Done

ext/standard/tests/image/image_type_to_mime_type.phpt

@@ -24,7 +24,7 @@ image_type_to_mime_type()
 	var_dump($result);
 ?>
 --EXPECT--
-array(16) {
+array(17) {
   ["test-1pix.bmp"]=>
   string(9) "image/bmp"
   ["test12pix.webp"]=>
@@ -57,4 +57,6 @@ array(16) {
   string(29) "application/x-shockwave-flash"
   ["test4pix.tiff"]=>
   string(10) "image/tiff"
+  ["test8pix.avif"]=>
+  string(10) "image/avif"
 }

ext/standard/tests/image/image_type_to_mime_type_basic.phpt

@@ -28,7 +28,8 @@ $image_types = array (
 	IMAGETYPE_WBMP,
 	IMAGETYPE_JPEG2000,
 	IMAGETYPE_XBM,
-	IMAGETYPE_WEBP
+	IMAGETYPE_WEBP,
+	IMAGETYPE_AVIF
 );
 
 	foreach($image_types as $image_type) {
@@ -57,5 +58,6 @@ string(18) "image/vnd.wap.wbmp"
 string(24) "application/octet-stream"
 string(9) "image/xbm"
 string(10) "image/webp"
+string(10) "image/avif"
 
 Done image_type_to_mime_type() test

ext/standard/tests/image/image_type_to_mime_type_variation3.phpt

@@ -77,4 +77,7 @@ string\(24\) "image\/vnd.microsoft.icon"
 string\(10\) "image\/webp"
 
 -- Iteration 19 --
+string\(10\) "image\/avif"
+
+-- Iteration 20 --
 string\(24\) "application\/octet-stream"