From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp5-g21.free.fr ([212.27.42.5]:50710 "EHLO smtp5-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751208Ab0E3Ldp convert rfc822-to-8bit (ORCPT ); Sun, 30 May 2010 07:33:45 -0400 Date: Sun, 30 May 2010 13:34:55 +0200 From: Jean-Francois Moine To: Ondrej Zary Cc: linux-media@vger.kernel.org Subject: Re: SPCA1527A/SPCA1528 (micro)SD camera in webcam mode Message-ID: <20100530133455.489c4f46@tele> In-Reply-To: <201005292132.09705.linux@rainbow-software.org> References: <201005291909.33593.linux@rainbow-software.org> <20100529202425.75b4ff56@tele> <201005292132.09705.linux@rainbow-software.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-media-owner@vger.kernel.org List-ID: On Sat, 29 May 2010 21:32:07 +0200 Ondrej Zary wrote: > The Color Space/Compression reported by the driver is only one: RGB 24 > The driver also uses these files which may (or may not) be related to > used compression: iyuv_32.dll, msh263.drv, msyuv.dll, tsbyuv.dll > In standalone mode, the camera records video in MJPEG format. Hello Ondrej, Bad news, the images are compressed by an unknown algorithm (unknown from Linux point of vue). The decompression function could be found in some part of the ms-win driver, but: - first, I have no time to search and disassemble this function, - then, I did have this problem with an other webcam (17a1:0118), and after searching for a long time, nobody could find the function, and the driver is in stand-by since 2 years, - eventually, is this legal? All I can do is to code the driver and let you or anyone find the decompression function... Best regards. -- Ken ar c'hentañ | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/