From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m2DEK902023787 for ; Thu, 13 Mar 2008 10:20:10 -0400 Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by mx3.redhat.com (8.13.8/8.13.8) with SMTP id m2DEJHjJ029922 for ; Thu, 13 Mar 2008 10:19:17 -0400 Date: Thu, 13 Mar 2008 15:18:57 +0100 From: Daniel =?iso-8859-1?Q?Gl=F6ckner?= To: Limin Wang Message-ID: <20080313141857.GA234@daniel.bse> References: <20080312082530.GA3570@lmwangpc.yuvad.cn> <47D7A00C.1020307@cineca.it> <20080312101633.GA4654@lmwangpc.yuvad.cn> <20080312113807.GB20885@stinkie> <20080312134247.GA5902@lmwangpc.yuvad.cn> <20080312212158.GA1411@daniel.bse> <20080313030209.GA8994@lmwangpc.yuvad.cn> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080313030209.GA8994@lmwangpc.yuvad.cn> Cc: video4linux-list@redhat.com Subject: Re: any recommendations for SD/SDI cards under linux? List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: video4linux-list-bounces@redhat.com Errors-To: video4linux-list-bounces@redhat.com List-ID: On Thu, Mar 13, 2008 at 11:02:09AM +0800, Limin Wang wrote: > I have no clue about the SDI file format by the wiki, even I have reviewed > SMPTE 259M document, it's described from hardware level. So any expert know > which document describe the detailed format? I think for SD-SDI it's like this: 143 Mb/s = Composite NTSC sampled at 14,3 MHz, SMPTE 244M 177 Mb/s = Composite PAL sampled at 17,7 MHz, IEC 61179-5 270 Mb/s = 4:2:2 Video sampled at 13,5 MHz, SMPTE 125M 360 Mb/s = 4:2:2 Video sampled at 18 MHz, SMPTE 267M The first two require signal processing to separate luma and chroma. The last one exceeds the bitrate of the DekTec card. I doubt the last two standards will tell you a lot more than "each line consists of {space for ANC} {SAV} {Cb Y Cr Y}+ {EAV}". SMPTE 291M = How to add ancillary data SMPTE 272M = How to pack uncompressed audio into ancillary frames SMPTE 337M = How to pack compressed instead of uncompressed audio Daniel -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list