Automattic / jetpack

					// for an image that was uploaded before the custom image was added to the theme.  Try to determine the size manually.

					$image_meta = wp_get_attachment_metadata( $attachment_id );

					if ( isset( $image_meta['width'], $image_meta['height'] ) ) {

						$image_resized = image_resize_dimensions( $image_meta['width'], $image_meta['height'], $image_args['width'], $image_args['height'], $image_args['crop'] );

						if ( $image_resized ) { // This could be false when the requested image size is larger than the full-size image.

							$image_meta['width'] = $image_resized[6];

							$image_meta['height'] = $image_resized[7];

						}

					}

				}

				if ( isset( $image_meta['width'], $image_meta['height'] ) ) {

					}

				}

				if ( isset( $image_meta['width'], $image_meta['height'] ) ) {

					$image_args['width']  = $image_meta['width'];

					$image_args['height'] = $image_meta['height'];

					list( $image_args['width'], $image_args['height'] ) = image_constrain_size_for_editor( $image_args['width'], $image_args['height'], $size, 'display' );

					$has_size_meta = true;

				}

				// Expose determined arguments to a filter before passing to Photon

				$transform = $image_args['crop'] ? 'resize' : 'fit';