<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On 19/07/2009, at 12:08 AM, Stephen Worthington wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>On Sat, 18 Jul 2009 20:43:25 +1200, you wrote:<br><br><blockquote type="cite">On Sat, Jul 18, 2009 at 8:20 PM, Stephen<br></blockquote><blockquote type="cite">Worthington<<a href="mailto:stephen_agent@jsw.gen.nz">stephen_agent@jsw.gen.nz</a>> wrote:<br></blockquote><blockquote type="cite"><blockquote type="cite">On Sat, 18 Jul 2009 19:45:04 +1200, you wrote:<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">On Sat, 2009-07-18 at 19:22 +1200, Tortise wrote:<br></blockquote></blockquote></blockquote><br><blockquote type="cite"><blockquote type="cite">If you have something like a PVR150 that does hardware compression to<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">MPEG-2, and you capture that and then convert to, say, H.264, you are<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">doing two compressions, and you lose quality by doing that. So you<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">are still better off using the PVR150 to capture to a raw AVI file and<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">then do just one compression from that. I have not tried it with my<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">PVR500, but most cards with builtin compression can also do raw<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">capture.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">no the pvr 150/500 cannot do that afaik.<br></blockquote><br>Pity - it is a useful thing to be able to do.<br><br></div></blockquote></div><div><br></div><div>Actually you can do raw video off these cards. The IVTV driver creates some additional /dev/video* devices one of which is a raw stream.</div><div><br></div><br><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Steven Ellis - Technical Director<br>OpenMedia Limited<br>email - <a href="mailto:steven@openmedia.co.nz">steven@openmedia.co.nz</a><br>website - <a href="http://www.openmedia.co.nz/">http://www.openmedia.co.nz</a><br></div></div></span> </div><br></body></html>