From owner-freebsd-multimedia Sun Sep 3 10:20:40 2000 Delivered-To: freebsd-multimedia@freebsd.org Received: from rr.com (rdu25-12-060.nc.rr.com [24.25.12.60]) by hub.freebsd.org (Postfix) with ESMTP id C0E8A37B42C for ; Sun, 3 Sep 2000 10:20:33 -0700 (PDT) Received: (from rhh@localhost) by rr.com (8.9.3/8.9.3) id NAA03974; Sun, 3 Sep 2000 13:22:44 -0400 (EDT) (envelope-from aa8vb@nc.rr.com) Date: Sun, 3 Sep 2000 13:22:44 -0400 From: Randall Hopper To: Bernie Doehner Cc: multimedia@freebsd.org Subject: TV & XvImages (was Re: fxtv 1.02 with XFree86 4.02...) Message-ID: <20000903132244.A3788@nc.rr.com> References: <20000902225150.A4453@nc.rr.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="ZGiS0Q5IWpPtfppv" Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: ; from bad@wireless.net on Sun, Sep 03, 2000 at 09:53:47AM -0700 Sender: owner-freebsd-multimedia@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org --ZGiS0Q5IWpPtfppv Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Bernie Doehner: |Ok, I'll have to look at the docs again. I never heard of XvImages |extension. Basically, YUV images rather than RGB images. Provides a nice way to let the video card do the expensive scaling, interpolation, and color-space conversion. In case you want to play with it, I've attached a few simple test progs I cooked back in May when I was playing with it. simpletv.c is a simple TV app that blasts real-time YUV from Bt848 cards to the Xv extension in an X window. You can stretch the window whatever size you want. Different from Fxtv/bktr in RGB mode, you're not limited to 640x480 (NTSC) or 768x576 (PAL). You can stretch it to 1280x1024 if you want. I can on my Matrox G200 here (just did). Very low CPU too. xv_ext_test.c just prints the adaptors and formats that the Xv extension says it can handle. BTW, for simpletv you'll want to run Fxtv first -- simpletv doesn't do input/input format/channel/frequency set/etc. setup so that's why. You'll also need the hermes port to link, though it's not used for YUV stuff. Hopefully the XFree86 group will greatly expand video card support for XvImages in the future. As I said, that's really the way to go. Randall -- Randall Hopper aa8vb@nc.rr.com > xv_ext_test XvQueryExtension(): version = 2, release = 2, request_base = 141, event_base = 75, error_base = 151 XvQueryAdaptors(): Adaptor 0: base_id = 40 num_ports = 1 type = 17 (XvInputMask, XvImageMask) name = Matrox G-Series Backend Scaler num_adaptors = 1 num_formats = 2 formats = Format 0: depth = 16, visual_id = 0x24 Format 1: depth = 16, visual_id = 0x25 XvListImageFormats(): Adaptor 0: num_formats = 3 Format 0: id = 844715353 type = 1 (XvYUV) byte_order = 0 (LSBFirst) guid = YUY2 bits_per_pixel = 16 format = 0 (XvPacked) num_planes = 1 sample_bits (yuv) = ( 8, 8, 8 ) horz_period (yuv) = ( 1, 2, 2 ) vert_period = ( 1, 1, 1 ) component_order = YUYV scanline_order = 0 Format 1: id = 842094169 type = 1 (XvYUV) byte_order = 0 (LSBFirst) guid = YV12 bits_per_pixel = 12 format = 1 (XvPlanar) num_planes = 3 sample_bits (yuv) = ( 8, 8, 8 ) horz_period (yuv) = ( 1, 2, 2 ) vert_period = ( 1, 2, 2 ) component_order = YVU scanline_order = 0 Format 2: id = 808596553 type = 1 (XvYUV) byte_order = 0 (LSBFirst) guid = I420 bits_per_pixel = 12 format = 1 (XvPlanar) num_planes = 3 sample_bits (yuv) = ( 8, 8, 8 ) horz_period (yuv) = ( 1, 2, 2 ) vert_period = ( 1, 2, 2 ) component_order = YUV scanline_order = 0 --ZGiS0Q5IWpPtfppv Content-Type: application/x-tar-gz Content-Disposition: attachment; filename="simpletv.tgz" Content-Transfer-Encoding: base64 H4sIAIuFsjkAA+w7a1fjxpL5zK+okBNiewTYwAw5Q5x7jC1Au2BzLcMwO5mjK6S2rRlb8pVk M+zN/Petqu7Www+GmxOy+2GdjJG6q6urq6rr1e0kmM4mIl3sed+92KdRr785OoLv4M3hUf0N /sXPwZH8C3B4dHR8BHDcaDSO37w5pOdG47B++B3UX46k/DNPUjcG+C4ej5+EQ7Dh8K8g6K/9 7Neg7c7SeSzADX1I0oieSDz3QQr981MIpu4ImxJsvb6+gmEwEVDb36KB0ewxDkbjFCpeFQ7q 9TpAH7G4kwlcRLOZiLeghv/DqZsIH6IQUYxi937Pg2EcTaEfjUQMF27s4xyhAQ/jwBvDg5vQ mPtsTAgRzhKE7gRmcYQIpnD/CFdu/BkGQTiai8kj0/4fwRQuowcBe2raFtLB9CUQi0TEC+Hr rr7wgySNg/t5GvAcPswTAUEISTSPPcmMe5wzfoRhFE8TpC5Ix0gJ/43mKWGZRn4wDDyXcBjg IudwzdMgTZFyJHUR+PiQjt0UvwTimUyiB6QYvCj0AxrEK6VxU5G+pefG3hJpCURDTZMX+QiJ 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