Date: Sat, 23 Apr 2005 03:38:26 -0300 From: Mario Sergio Fujikawa Ferreira <lioux@FreeBSD.org> To: Steve O'Hara-Smith <steve@sohara.org> Cc: FreeBSD-multimedia@FreeBSD.org Subject: Re: Help with TV capture (mplayer/brooktree/audigy) Message-ID: <20050423063848.67278.qmail@exxodus.fedaykin.here> In-Reply-To: <20050422095554.35a3ff26.steve@sohara.org> References: <20050421021909.28497.qmail@exxodus.fedaykin.here> <20050421102551.12ebb916.steve@sohara.org> <20050421163426.96546.qmail@exxodus.fedaykin.here> <20050422095554.35a3ff26.steve@sohara.org>
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--O5XBE6gyVG5Rl6Rj Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Apr 22, 2005 at 09:55:32AM +0100, Steve O'Hara-Smith wrote: > On Thu, 21 Apr 2005 13:34:04 -0300 > Mario Sergio Fujikawa Ferreira <lioux@FreeBSD.org> wrote: >=20 > > On Thu, Apr 21, 2005 at 10:25:29AM +0100, Steve O'Hara-Smith wrote: > > > On Wed, 20 Apr 2005 23:18:47 -0300 >=20 > > > You might get better results connecting the SCART on the decoder to = the > > > S-Video input on the BrookTree card - I'm doing that with a DTV box a= t the moment. > > > You need the right kind of SCART->S-Video converter (one with a switc= h is best IME). > >=20 > > Unfortunaly, the satellite decoder only has S-Video/RCA > > output so I picked the S-Video one. Furthermore, my BrookTree card > > only has RCA input. Therefore, I am using a S-Video to RCA "converter". >=20 > Ah - why not use the RCA output of the decoder directly ? It might > produce better sync signals. I'just tried using VCR's RCA<->RCA cable I had lying around. They are good grade custom made. Image improvement was not noticeable :( > > > > 2) Every few seconds the video stream seems to choke; thus, > > > > giving me an effect similar to the famous interlaced "blinders > > > > effect" so I added a deinterlacer filter > > >=20 > > > Sync detection problems perhaps. Is there anything I can do to improve that? Perhaps, a harder filter looking for those? I fear that such harder filtering will just decrease performance; thus, increasing the choking effect. Bear in mind that I do not mind 100% CPU occupancy for as long as, I can get good quality TV capture with good audio. :) > > Any ideas on how to fix that? I have no problems with a lot > > of test x trials :) >=20 > Well I was hoping you could use an input that didn't require sync > separation. Other than that the tweaks Jacob Meuser suggested are well > worth trying. Well, if you think it is worth it. I'll order tomorrow custom made 3 ways shielded cabling with "gold" platet male RCA connectors. 1 for video and 2 for stereo audio (L/R). I am still having choking effetcs and, despite, the improvement that I can= now record with audigy2; I have no idea how to tell mplayer to use the proper device :) I tried using adevice but it complained hardly - My standard capture liness o high mplayer -tv driver=3Dbsdbt848:noaudio:width=3D640:height=3D480:inpu= t=3D0:norm=3Dntsc tv:// -vf hqdn3d,filmdint -cache 524288 o performance mplayer -tv driver=3Dbsdbt848:noaudio:width=3D640:height=3D48= 0:input=3D0:norm=3Dntsc tv:// -vf denoise3d,lavcdeint -cache 524288 =09 o low perf mplayer -tv driver=3Dbsdbt848:noaudio:width=3D640:height=3D480:i= nput=3D0:norm=3Dntsc tv:// -vf pp=3Dhb/vb/dr/al/lb -cache 524288 I have a sample video using the following options. Let me know what you think. In case you wonder about copyright issues. It's just part of the "you should buy SKY cable, their informercial channel" and it's a 10 secs sample... shouldn't be an issue. If it is, let me know ASAP so that I can remove it. I am not trying to break any laws. I am just trying to exercise fair use for testing purposes of VISUALLY an unidentifiable source. $ mencoder -tv driver=3Dbsdbt848:noaudio:width=3D640:height=3D480:iinput=3D= 0:norm=3Dntsc tv:// \ -vf hqdn3d -cache 131072 -o output.avi -ovc lavc -lavcopts vcodec=3Dmpeg4 http://people.FreeBSD.org/~lioux/output.avi MD5 (output.avi) =3D 2ee60e371cb49d386253207a6ad4e949 Any help appreciated. Regards, --=20 Mario S F Ferreira - DF - Brazil - "I guess this is a signature." feature, n: a documented bug | bug, n: an undocumented feature --O5XBE6gyVG5Rl6Rj Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQFCae14rxEiaFLzGQwRAmF2AJ92X4oL7zf8oq1FaMnB6WjCu2XFoQCcCPWC RTNhqvcCWS/MLOsM/DLNo+Q= =enp7 -----END PGP SIGNATURE----- --O5XBE6gyVG5Rl6Rj--
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