[Cin] offtopic: Digitize and record Video with A/D USB adapters

[Terje J. Hanssen]

Den 30.09.2021 00:47, skrev Terje J. Hanssen:
>
> Many good points, and I shorten the repeated thread above 
> ....................
>
> @Andrew
>
> First
>> FLAC is audio codec, but from what I saw ppl used it with huffyuv for
>> example on Windows, so main output from drivr should be uncompressed
>
> Of course, my confusion, FLAC is "Free Lossless Audio Codec", which I 
> never have used so far (remembered Andrea mentioned it).

And to correct myself:

Andrea mentioned *FFV1* in a previous forum post
https://www.cinelerra-gg.org/forum/postid/1289/

Terje

>
> Could i.e free, lossless FFV1 (or x265 lossless) be useful "LTS and 
> crossplatform compatible codecs" to compress 4:2:2 SD and HD video 
> output for archiving and editing?
> So far I have used proprietary ProRes HQ via BM Hyperdeck Shuttle 2, 
> but an open format is a wishible option.
> (Playback S-Video via TBC and converted to DV PAL (4:2:0) has visible 
> less colors, which also may be due to Datavideo bult-in the A/D 
> converter in the recorder..)
>
>
> 1) AVerMedia CE310B
> This PCIe videograbber is possibly"End Of Life - This product is no 
> longer available to purchase"
> https://www.scan.co.uk/products/avermedia-ce310b-pcie-frame-grabber-with-composite-s-video-interfacing?__cf_chl_captcha_tk__=pmd_750OsGngyr3HJ_Tm7NOj_k_LupqeA9reTqddMnXjA.0-1632945021-0-gqNtZGzNA1CjcnBszQfl
>
> 2) AVerMedia CL311-M2
> This looks to be a newer, more professional and > US $300 costly PCIe 
> video capture card that supports both analog video, full HD(MI) video 
> and more.
> Beyond Windows support, there is a Linux Driver (2.0.8) for Ubuntu 
> 20.04/18.04/16.04, kernel 5.4.0-4.15.0, TegraOS kernel 4.4.0, Support 
> users to complie driver by themselves.
> While the first CL311-M1 included a S-Video connector on its 
> backplane, the M2 version apply a cable dongle and supports 8 bit 
> colors, 4:2:2 uncompressed format..
> (That is, not unlike BM's (previous) Intensity Pro video grabber card)
>
> https://professional.avermedia.com/frame-grabbers/cl311-m2/
> https://www.avermedia.com/professional/download/cl311_m2#ans_part
> https://www.avermedia.com/professional/faqs/cl311_m2
> https://www.avermedia.com/professional/product/sdk/overview
> https://www.amazon.com/AVerMedia-1080P-60FPS-Capture-CL311-M2/dp/B07B9YHWS9
>
>
> @Mat and @Stefan
>
>> - I would avoid plug-in cards, you are completely dependent on the
>>    manufacturer's support for Linux drivers. On the other hand, USB
>>    grabbers usually follow standard USB audio/video rules, and almost
>>    always work.
> -------------------
>> Your argument is valid for drivers in Linux. The problem with the USB
>> drivers and Linux;
>>   - Linux supports a single endpoint per device, when the device needs two
>>     independent drivers this causes a problem. For example V4L + libusb with
>>     an ATEM.
>
>
> 3) AVerMedia CU511B
> This full HD and SD Capture Box, 8 bit 4:2:2 with USB 3.0, could 
> possibly be an interesting external counterpart to the CE311-M2 PCIe 
> capture card mentioned above.
> However I would expect it costs at least as much; possibly therefore 
> my search didn't find it for sail.
> According to the latest datasheet (DS_CU511B_EN_21060630.pdf, 1.5 MB), 
> Windows and Linux driver support is included (and possibly required?) as
> •Linux Services
> •Support Linux kernel 2.6.14 version and later based on V4L2 & ALSA 
> framework
> •Driver customization service by request
>
> https://www.avermedia.com/professional/news/20
> https://www.avermedia.com/professional/product/cu511b/overview
> https://www.avermedia.com/professional/product/cu511b/spec
> https://www.avermedia.com/professional/faqs/cu511b
> http://storage.avermedia.com/web_release_www/CU511B/DS_CU511B_EN_21060630.pdf
>
>
> ---------
> Terje

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