From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andy Wingo Newsgroups: gmane.lisp.guile.user Subject: Re: A wee JPEG parser Date: Wed, 08 Oct 2014 22:02:44 +0200 Message-ID: <87d2a249ej.fsf@pobox.com> References: <87y4sy4n9r.fsf@pobox.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1412798595 30178 80.91.229.3 (8 Oct 2014 20:03:15 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 8 Oct 2014 20:03:15 +0000 (UTC) To: guile-user@gnu.org Original-X-From: guile-user-bounces+guile-user=m.gmane.org@gnu.org Wed Oct 08 22:03:10 2014 Return-path: Envelope-to: guile-user@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XbxRz-00022K-5l for guile-user@m.gmane.org; Wed, 08 Oct 2014 22:03:07 +0200 Original-Received: from localhost ([::1]:38375 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XbxRy-0001sn-Jq for guile-user@m.gmane.org; Wed, 08 Oct 2014 16:03:06 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55409) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XbxRl-0001sh-P3 for guile-user@gnu.org; Wed, 08 Oct 2014 16:02:58 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XbxRh-0007LJ-6W for guile-user@gnu.org; Wed, 08 Oct 2014 16:02:53 -0400 Original-Received: from pb-sasl1.int.icgroup.com ([208.72.237.25]:58051 helo=sasl.smtp.pobox.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XbxRh-0007Kl-2w for guile-user@gnu.org; Wed, 08 Oct 2014 16:02:49 -0400 Original-Received: from sasl.smtp.pobox.com (unknown [127.0.0.1]) by pb-sasl1.pobox.com (Postfix) with ESMTP id A47F1140B5 for ; Wed, 8 Oct 2014 16:02:47 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=from:to :subject:references:date:in-reply-to:message-id:mime-version :content-type; s=sasl; bh=NvBmMsWK9wPvjnz+B3TO5sQEnqw=; b=GgoDgv 8FXGBAlq8lNVg+Az0zWd7oLeULOl32bqJhfZbyVdgmEG74/24nrUU0kIIS65IbJC B9UfInw5srDQJF1w9BLmbevpscxe6qZlkKjIE1T/jfwOAbxtlZB9PcEt79Typkx7 /xUOVi8Iv+Wx0gzJ/Lokb0oTlFyJ4rL2aS/dY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=pobox.com; h=from:to:subject :references:date:in-reply-to:message-id:mime-version :content-type; q=dns; s=sasl; b=tGzqFg3BNBv02uRQQK79QXqTEoeiTDuJ RwkXCPfmtOiJSFkwWWY/E+iV3WUvaJtVZmA832JQ3XWgC4ewCSEt70NI9Ab9Ovza rIb4nboRkofjf1GbUGWGhbagb+0UlKgQcf+WpWe4BP83npTWyQzocq58KoxLv7XQ vy5eGeDL4ys= Original-Received: from pb-sasl1.int.icgroup.com (unknown [127.0.0.1]) by pb-sasl1.pobox.com (Postfix) with ESMTP id 9A311140B4 for ; Wed, 8 Oct 2014 16:02:47 -0400 (EDT) Original-Received: from badger (unknown [88.160.190.192]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pb-sasl1.pobox.com (Postfix) with ESMTPSA id EEE9B140B3 for ; Wed, 8 Oct 2014 16:02:46 -0400 (EDT) In-Reply-To: <87y4sy4n9r.fsf@pobox.com> (Andy Wingo's message of "Thu, 02 Oct 2014 15:25:04 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) X-Pobox-Relay-ID: 12D73E86-4F26-11E4-921E-BA0234F91D4B-02397024!pb-sasl1.pobox.com X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.72.237.25 X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-user-bounces+guile-user=m.gmane.org@gnu.org Original-Sender: guile-user-bounces+guile-user=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.user:11572 Archived-At: On Thu 02 Oct 2014 15:25, Andy Wingo writes: > Should anyone need a JPEG parser, or the beginnings of one anyway, here > is one: > > https://gitorious.org/guile-jpeg/guile-jpeg > > Currently it's just enough to parse out the dimensions of a file, though > you could tweak it in other ways. You could probably use it to get EXIF > information, though for that purpose I'm using libexif via guile-exif: > > https://gitorious.org/guile-exif/guile-exif I ended up just adding an EXIF parser there, in guile-jpeg. Less gnarly C code. So if anyone needs this sort of thing, check https://gitorious.org/guile-jpeg/guile-jpeg. Andy -- http://wingolog.org/