On Saturday, June 19, 2021, Andrew Randrianasulu <[email protected]> wrote:
> > > On Saturday, June 19, 2021, Igor BEGHETTO via Cin < > [email protected]> wrote: > >> What I know 72, 90, and 144 are not standard frame rates. I don't >> remember for 100 fps, seems to me not. >> > > ST 12-3:2016 - SMPTE Standard - Time Code for High Frame Rate Signals and > Formatting in the Ancillary Data Space > > Abstract:This standard specifies time code formats with the frame counts > 72, 96, 100 and 120 and the frame count 120 with drop-frame compensation. > This standard also specifies a transmission format for conveyance of the > time code and frame count in the ancillary data space of serial digital > interfaces. > > https://ieeexplore.ieee.org/document/7438725 > > but try to get also all pdfs from > > https://www.smpte.org/free-standards-and-publications > > while you can.. downloading pdfs from tbis site seems to fail me probably > due to my location (may be i have them on my main machine, but my machine > is 1700km away and offline) > additionally this camera apparently can record at 90 (and up to 200) fps https://www.arri.com/en/learn-help/learn-help-camera-system/frequently-asked-questions/alexa-mini-lf-faq#accordion-83760 > > >> >> I think only standard frame rates should be taken into consideration by >> Cinelerra-GG, otherwise what is a standard for? >> If an User uses a no standard frame rate She/He may have problem to play >> it somewhere. >> If You, like me, think that Cinelerra-GG is a professional program (I >> would say mostly Prosumer) only the standard frame rate should be there to >> avoid future/next problem with users (and broadcast). And could it happen >> for Video/Audio sync? >> IMHO, all of you can make a screencast with screen recorder at any (?) >> frame rate you want but when you use a NLE the Format Project should use >> the standard frame rates. >> What I know Cinelerra-GG may work with any source frame rate but the >> Project Format should be conformed to standards. >> The check on the frame rate that Cinelerra-GG performs are just for that. >> Sorry if I think so. >> >> I would like to know by Pierre, Sam, RafaMar and other Professionl Video >> Editor what they think about it. >> >> Thanks! >> IgorBeg >> > > > > > >> >> >> >> Il 18/06/2021 15:46, Andrea paz via Cin ha scritto: >> >> cool! Did you tried to import resulted files back into Cingg and try to >> proxy them?) >> >> Rendered again at 144 fps ==> OK; closed CinGG; start CinGG ; load the >> file mp4 at 144 fps (1080p) ==> OK >> Proxy a 1/2 default (mpeg) ==> error: >> >> int FFMPEG::open_encoder(const char*, const char*): >> check_frame_rate failed >> /home/paz/video_editing/prova/CinGG-std-test.proxy2-mp4.mpeg >> proxy: failed=1 canceled=0 >> int ProxyRender::create_needed_proxies(int): >> Error making proxy. >> proxy: failed=0 canceled=0 >> >> (The proxies are 2 because in the timeline I had created a clip and >> then brought it back into the timeline as a nested clip, appended to >> the previous edit.) >> >> Created a proxy in mov.mov (1/2) ==> OK >> Done various editing with proxy/original ==> OK >> Deleted the proxy ==> OK >> >>
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