* SUGGESTION FOR A Linux based Card @ 2010-07-08 13:13 Akhilesh Soni 2010-07-08 19:37 ` Charlie X. Liu 0 siblings, 1 reply; 7+ messages in thread From: Akhilesh Soni @ 2010-07-08 13:13 UTC (permalink / raw) To: video4linux-list Hello, I am looking for a linux based card for 4 composite input with unbalanced audio for full D1 resolution. The idea is to capture live stream and encode using vlc-ffmpeg for http streaming. It is better to have availability of these cards in India. Thanks, Akhilesh -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
* RE: SUGGESTION FOR A Linux based Card 2010-07-08 13:13 SUGGESTION FOR A Linux based Card Akhilesh Soni @ 2010-07-08 19:37 ` Charlie X. Liu 2010-07-09 6:26 ` Roger Oberholtzer 0 siblings, 1 reply; 7+ messages in thread From: Charlie X. Liu @ 2010-07-08 19:37 UTC (permalink / raw) To: 'Akhilesh Soni', video4linux-list Sensoray Company has Model 811 (a 4-channel PCI-Express Capture Card: http://www.sensoray.com/products/811.htm ) and Model 911 (a 4-channel PCI/104-Express Capture Card: http://www.sensoray.com/products/911.htm ). Both have 4 Composite/S-Video inputs, plus 4 channel of stereo audio inputs. They all work well under Linux. Charlie X. Liu @ Sensoray Co. -----Original Message----- From: video4linux-list-bounces@redhat.com [mailto:video4linux-list-bounces@redhat.com] On Behalf Of Akhilesh Soni Sent: Thursday, July 08, 2010 6:14 AM To: video4linux-list@redhat.com Subject: SUGGESTION FOR A Linux based Card Hello, I am looking for a linux based card for 4 composite input with unbalanced audio for full D1 resolution. The idea is to capture live stream and encode using vlc-ffmpeg for http streaming. It is better to have availability of these cards in India. Thanks, Akhilesh -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
* RE: SUGGESTION FOR A Linux based Card 2010-07-08 19:37 ` Charlie X. Liu @ 2010-07-09 6:26 ` Roger Oberholtzer 2010-07-09 16:30 ` Charlie X. Liu 0 siblings, 1 reply; 7+ messages in thread From: Roger Oberholtzer @ 2010-07-09 6:26 UTC (permalink / raw) To: video4linux-list On Thu, 2010-07-08 at 12:37 -0700, Charlie X. Liu wrote: > Sensoray Company has Model 811 (a 4-channel PCI-Express Capture Card: > http://www.sensoray.com/products/811.htm ) and Model 911 (a 4-channel > PCI/104-Express Capture Card: http://www.sensoray.com/products/911.htm ). > Both have 4 Composite/S-Video inputs, plus 4 channel of stereo audio inputs. > They all work well under Linux. We have used 4-channel cards from Linux Media Labs (LML). They have worked out of the box. Never a problem. -- Roger Oberholtzer OPQ Systems / Ramböll RST Ramböll Sverige AB Krukmakargatan 21 P.O. Box 17009 SE-104 62 Stockholm, Sweden Office: Int +46 10-615 60 20 Mobile: Int +46 70-815 1696 -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
* RE: SUGGESTION FOR A Linux based Card 2010-07-09 6:26 ` Roger Oberholtzer @ 2010-07-09 16:30 ` Charlie X. Liu 2010-07-09 21:54 ` Roger Oberholtzer 0 siblings, 1 reply; 7+ messages in thread From: Charlie X. Liu @ 2010-07-09 16:30 UTC (permalink / raw) To: 'Roger Oberholtzer', video4linux-list Is it a BT878-based or SAA7134-based? If you are looking for a better quality capture card, considering a SAA7134-based is very important, since BT878 is too old and SAA713x is a newer generation one that uses more advanced technologies including using the adaptive comb filter and adaptive anti-alias filtering techniques which make big difference on image/video quality. We had side-by-side comparison and decided using SAA7135HL (full version of SAA7134) for the Sensoray Model 811 ( http://www.sensoray.com/products/811.htm, 4-channel PCIe) and Model 911 (http://www.sensoray.com/products/911.htm , 4-channel PCIe/104). Best regards, Charlie X. Liu @ Sensoray Co. -----Original Message----- From: video4linux-list-bounces@redhat.com [mailto:video4linux-list-bounces@redhat.com] On Behalf Of Roger Oberholtzer Sent: Thursday, July 08, 2010 11:26 PM To: video4linux-list@redhat.com Subject: RE: SUGGESTION FOR A Linux based Card On Thu, 2010-07-08 at 12:37 -0700, Charlie X. Liu wrote: > Sensoray Company has Model 811 (a 4-channel PCI-Express Capture Card: > http://www.sensoray.com/products/811.htm ) and Model 911 (a 4-channel > PCI/104-Express Capture Card: http://www.sensoray.com/products/911.htm ). > Both have 4 Composite/S-Video inputs, plus 4 channel of stereo audio inputs. > They all work well under Linux. We have used 4-channel cards from Linux Media Labs (LML). They have worked out of the box. Never a problem. -- Roger Oberholtzer OPQ Systems / Ramböll RST Ramböll Sverige AB Krukmakargatan 21 P.O. Box 17009 SE-104 62 Stockholm, Sweden Office: Int +46 10-615 60 20 Mobile: Int +46 70-815 1696 -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
* RE: SUGGESTION FOR A Linux based Card 2010-07-09 16:30 ` Charlie X. Liu @ 2010-07-09 21:54 ` Roger Oberholtzer 2010-07-09 23:05 ` Charlie X. Liu 2010-07-11 16:53 ` Daniel Glöckner 0 siblings, 2 replies; 7+ messages in thread From: Roger Oberholtzer @ 2010-07-09 21:54 UTC (permalink / raw) To: Charlie X. Liu; +Cc: video4linux-list On Fri, 2010-07-09 at 09:30 -0700, Charlie X. Liu wrote: > Is it a BT878-based or SAA7134-based? If you are looking for a better quality capture card, considering a SAA7134-based is very important, since BT878 is too old and SAA713x is a newer generation one that uses more advanced technologies including using the adaptive comb filter and adaptive anti-alias filtering techniques which make big difference on image/video quality. They have a few different cards. BT878 is not lower quality (in my opinion when using these cards in systems to capture images for high-speed image processing). The difference is that it does no compression in hardware. But I thought the original poster mentioned using ffmpeg. We also use a 4-channel card that compresses to jpeg-2000 in hardware. Great linux support. It is a mistake to confuse age with quality. In this area, new sometimes means cheaper to make, or additional features (like compression) that do not effect the basic image capture quality. YMMV. -- Roger Oberholtzer Ramböll RST/OPQ Ramböll Sverige AB Krukmakargatan 21 P.O. Box 17009 SE-104 62 Stockholm, Sweden Office: Int +46 10-615 60 20 Mobile: Int +46 70-815 1696 -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
* RE: SUGGESTION FOR A Linux based Card 2010-07-09 21:54 ` Roger Oberholtzer @ 2010-07-09 23:05 ` Charlie X. Liu 2010-07-11 16:53 ` Daniel Glöckner 1 sibling, 0 replies; 7+ messages in thread From: Charlie X. Liu @ 2010-07-09 23:05 UTC (permalink / raw) To: 'Roger Oberholtzer'; +Cc: video4linux-list I could not all agree with your opinion, Roger. if you do a side-by-side image/video quality comparison, especially using a resolution chart as object in front of your video camera, you will see the big difference. Pay attention to aliasing artifacts. Best regards, Charlie X. Liu, Ph.D. Dept. of Engineering Sensoray Company 7313 SW Tech Center Dr. Tigard, OR 97223, USA Phone: (503) 684-8073 Fax: (503) 684-8164 Web: http://www.sensoray.com -----Original Message----- From: Roger Oberholtzer [mailto:roger@opq.se] Sent: Friday, July 09, 2010 2:55 PM To: Charlie X. Liu Cc: video4linux-list@redhat.com Subject: RE: SUGGESTION FOR A Linux based Card On Fri, 2010-07-09 at 09:30 -0700, Charlie X. Liu wrote: > Is it a BT878-based or SAA7134-based? If you are looking for a better quality capture card, considering a SAA7134-based is very important, since BT878 is too old and SAA713x is a newer generation one that uses more advanced technologies including using the adaptive comb filter and adaptive anti-alias filtering techniques which make big difference on image/video quality. They have a few different cards. BT878 is not lower quality (in my opinion when using these cards in systems to capture images for high-speed image processing). The difference is that it does no compression in hardware. But I thought the original poster mentioned using ffmpeg. We also use a 4-channel card that compresses to jpeg-2000 in hardware. Great linux support. It is a mistake to confuse age with quality. In this area, new sometimes means cheaper to make, or additional features (like compression) that do not effect the basic image capture quality. YMMV. -- Roger Oberholtzer Ramböll RST/OPQ Ramböll Sverige AB Krukmakargatan 21 P.O. Box 17009 SE-104 62 Stockholm, Sweden Office: Int +46 10-615 60 20 Mobile: Int +46 70-815 1696 -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: SUGGESTION FOR A Linux based Card 2010-07-09 21:54 ` Roger Oberholtzer 2010-07-09 23:05 ` Charlie X. Liu @ 2010-07-11 16:53 ` Daniel Glöckner 1 sibling, 0 replies; 7+ messages in thread From: Daniel Glöckner @ 2010-07-11 16:53 UTC (permalink / raw) To: Roger Oberholtzer; +Cc: video4linux-list On Fri, Jul 09, 2010 at 11:54:48PM +0200, Roger Oberholtzer wrote: > BT878 is not lower quality (in my > opinion when using these cards in systems to capture images for > high-speed image processing). The BT878 has an 8 bit ADC with gain controlled so that the back porch samples as 0x38. The successor CX23880 already uses a 10 bit ADC. Daniel -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2010-07-11 16:54 UTC | newest] Thread overview: 7+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2010-07-08 13:13 SUGGESTION FOR A Linux based Card Akhilesh Soni 2010-07-08 19:37 ` Charlie X. Liu 2010-07-09 6:26 ` Roger Oberholtzer 2010-07-09 16:30 ` Charlie X. Liu 2010-07-09 21:54 ` Roger Oberholtzer 2010-07-09 23:05 ` Charlie X. Liu 2010-07-11 16:53 ` Daniel Glöckner
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