PHP_FUNCTION(exif_read_data)
{
	zend_string *z_sections_needed = NULL;
	zend_bool sub_arrays = 0, read_thumbnail = 0, read_all = 0;
	zval *stream;
	int i, ret, sections_needed = 0;
	image_info_type ImageInfo;
	char tmp[64], *sections_str, *s;

	/* Parse arguments */
	ZEND_PARSE_PARAMETERS_START(1, 4)
		Z_PARAM_ZVAL(stream)
		Z_PARAM_OPTIONAL
		Z_PARAM_STR(z_sections_needed)
		Z_PARAM_BOOL(sub_arrays)
		Z_PARAM_BOOL(read_thumbnail)
	ZEND_PARSE_PARAMETERS_END();

	memset(&ImageInfo, 0, sizeof(ImageInfo));

	if (z_sections_needed) {
		spprintf(&sections_str, 0, ",%s,", ZSTR_VAL(z_sections_needed));
		/* sections_str DOES start with , and SPACES are NOT allowed in names */
		s = sections_str;
		while (*++s) {
			if (*s == ' ') {
				*s = ',';
			}
		}

		for (i = 0; i < SECTION_COUNT; i++) {
			snprintf(tmp, sizeof(tmp), ",%s,", exif_get_sectionname(i));
			if (strstr(sections_str, tmp)) {
				sections_needed |= 1<<i;
			}
		}
		EFREE_IF(sections_str);
		/* now see what we need */
#ifdef EXIF_DEBUG
		sections_str = exif_get_sectionlist(sections_needed);
		if (!sections_str) {
			RETURN_FALSE;
		}
		exif_error_docref(NULL EXIFERR_CC, &ImageInfo, E_NOTICE, "Sections needed: %s", sections_str[0] ? sections_str : "None");
		EFREE_IF(sections_str);
#endif
	}

	if (Z_TYPE_P(stream) == IS_RESOURCE) {
		php_stream *p_stream = NULL;

		php_stream_from_res(p_stream, Z_RES_P(stream));

		ret = exif_read_from_stream(&ImageInfo, p_stream, read_thumbnail, read_all);
	} else {
		if (!try_convert_to_string(stream)) {
			return;
		}

		if (!Z_STRLEN_P(stream)) {
			exif_error_docref(NULL EXIFERR_CC, &ImageInfo, E_WARNING, "Filename cannot be empty");

			RETURN_FALSE;
		}

		ret = exif_read_from_file(&ImageInfo, Z_STRVAL_P(stream), read_thumbnail, read_all);
	}

	sections_str = exif_get_sectionlist(ImageInfo.sections_found);

#ifdef EXIF_DEBUG
	if (sections_str) {
		exif_error_docref(NULL EXIFERR_CC, &ImageInfo, E_NOTICE, "Sections found: %s", sections_str[0] ? sections_str : "None");
	}
#endif

	ImageInfo.sections_found |= FOUND_COMPUTED|FOUND_FILE;/* do not inform about in debug*/

	if (ret == FALSE || (sections_needed && !(sections_needed&ImageInfo.sections_found))) {
		/* array_init must be checked at last! otherwise the array must be freed if a later test fails. */
		exif_discard_imageinfo(&ImageInfo);
	   	EFREE_IF(sections_str);
		RETURN_FALSE;
	}

	array_init(return_value);

#ifdef EXIF_DEBUG
	exif_error_docref(NULL EXIFERR_CC, &ImageInfo, E_NOTICE, "Generate section FILE");
#endif

	/* now we can add our information */
	exif_iif_add_str(&ImageInfo, SECTION_FILE, "FileName",      ImageInfo.FileName);
	exif_iif_add_int(&ImageInfo, SECTION_FILE, "FileDateTime",  ImageInfo.FileDateTime);
	exif_iif_add_int(&ImageInfo, SECTION_FILE, "FileSize",      ImageInfo.FileSize);
	exif_iif_add_int(&ImageInfo, SECTION_FILE, "FileType",      ImageInfo.FileType);
	exif_iif_add_str(&ImageInfo, SECTION_FILE, "MimeType",      (char*)php_image_type_to_mime_type(ImageInfo.FileType));
	exif_iif_add_str(&ImageInfo, SECTION_FILE, "SectionsFound", sections_str ? sections_str : "NONE");

#ifdef EXIF_DEBUG
	exif_error_docref(NULL EXIFERR_CC, &ImageInfo, E_NOTICE, "Generate section COMPUTED");
#endif

	if (ImageInfo.Width>0 &&  ImageInfo.Height>0) {
		exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "html"   , "width=\"%d\" height=\"%d\"", ImageInfo.Width, ImageInfo.Height);
		exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "Height", ImageInfo.Height);
		exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "Width",  ImageInfo.Width);
	}
	exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "IsColor", ImageInfo.IsColor);
	if (ImageInfo.motorola_intel != -1) {
		exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "ByteOrderMotorola", ImageInfo.motorola_intel);
	}
	if (ImageInfo.FocalLength) {
		exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "FocalLength", "%4.1Fmm", ImageInfo.FocalLength);
		if(ImageInfo.CCDWidth) {
			exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "35mmFocalLength", "%dmm", (int)(ImageInfo.FocalLength/ImageInfo.CCDWidth*35+0.5));
		}
	}
	if(ImageInfo.CCDWidth) {
		exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "CCDWidth", "%dmm", (int)ImageInfo.CCDWidth);
	}
	if(ImageInfo.ExposureTime>0) {
		float recip_exposure_time = 0.5f + 1.0f/ImageInfo.ExposureTime;
		if (ImageInfo.ExposureTime <= 0.5 && recip_exposure_time < INT_MAX) {
			exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "ExposureTime", "%0.3F s (1/%d)", ImageInfo.ExposureTime, (int) recip_exposure_time);
		} else {
			exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "ExposureTime", "%0.3F s", ImageInfo.ExposureTime);
		}
	}
	if(ImageInfo.ApertureFNumber) {
		exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "ApertureFNumber", "f/%.1F", ImageInfo.ApertureFNumber);
	}
	if(ImageInfo.Distance) {
		if(ImageInfo.Distance<0) {
			exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "FocusDistance", "Infinite");
		} else {
			exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "FocusDistance", "%0.2Fm", ImageInfo.Distance);
		}
	}
	if (ImageInfo.UserComment) {
		exif_iif_add_buffer(&ImageInfo, SECTION_COMPUTED, "UserComment", ImageInfo.UserCommentLength, ImageInfo.UserComment);
		if (ImageInfo.UserCommentEncoding && strlen(ImageInfo.UserCommentEncoding)) {
			exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "UserCommentEncoding", ImageInfo.UserCommentEncoding);
		}
	}

	exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "Copyright",              ImageInfo.Copyright);
	exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "Copyright.Photographer", ImageInfo.CopyrightPhotographer);
	exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "Copyright.Editor",       ImageInfo.CopyrightEditor);

	for (i=0; i<ImageInfo.xp_fields.count; i++) {
		exif_iif_add_str(&ImageInfo, SECTION_WINXP, exif_get_tagname_debug(ImageInfo.xp_fields.list[i].tag, exif_get_tag_table(SECTION_WINXP)), ImageInfo.xp_fields.list[i].value);
	}
	if (ImageInfo.Thumbnail.size) {
		if (read_thumbnail) {
			/* not exif_iif_add_str : this is a buffer */
			exif_iif_add_tag(&ImageInfo, SECTION_THUMBNAIL, "THUMBNAIL", TAG_NONE, TAG_FMT_UNDEFINED, ImageInfo.Thumbnail.size, ImageInfo.Thumbnail.data, ImageInfo.Thumbnail.size);
		}
		if (!ImageInfo.Thumbnail.width || !ImageInfo.Thumbnail.height) {
			/* try to evaluate if thumbnail data is present */
			exif_scan_thumbnail(&ImageInfo);
		}
		exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "Thumbnail.FileType", ImageInfo.Thumbnail.filetype);
		exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "Thumbnail.MimeType", (char*)php_image_type_to_mime_type(ImageInfo.Thumbnail.filetype));
	}
	if (ImageInfo.Thumbnail.width && ImageInfo.Thumbnail.height) {
		exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "Thumbnail.Height", ImageInfo.Thumbnail.height);
		exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "Thumbnail.Width",  ImageInfo.Thumbnail.width);
	}
   	EFREE_IF(sections_str);

#ifdef EXIF_DEBUG
	exif_error_docref(NULL EXIFERR_CC, &ImageInfo, E_NOTICE, "Adding image infos");
#endif

	add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_FILE      );
	add_assoc_image_info(return_value, 1,          &ImageInfo, SECTION_COMPUTED  );
	add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_ANY_TAG   );
	add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_IFD0      );
	add_assoc_image_info(return_value, 1,          &ImageInfo, SECTION_THUMBNAIL );
	add_assoc_image_info(return_value, 1,          &ImageInfo, SECTION_COMMENT   );
	add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_EXIF      );
	add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_GPS       );
	add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_INTEROP   );
	add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_FPIX      );
	add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_APP12     );
	add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_WINXP     );
	add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_MAKERNOTE );

#ifdef EXIF_DEBUG
	exif_error_docref(NULL EXIFERR_CC, &ImageInfo, E_NOTICE, "Discarding info");
#endif

	exif_discard_imageinfo(&ImageInfo);

#ifdef EXIF_DEBUG
	php_error_docref1(NULL, (Z_TYPE_P(stream) == IS_RESOURCE ? "<stream>" : Z_STRVAL_P(stream)), E_NOTICE, "Done");
#endif
}