For me on OSX syphon + syphon recorder works best. Antoine Villeret <antoine.ville...@gmail.com> schrieb am Fr., 29. Mai 2020, 10:54:
> Hi, > > what about using a screen casting tool ? they are usually made for gaming > and thus optimized for real time performance. > On macos, quicktime player is a pretty simple solution for that. > The only drawback I saw is that you're stuck with the rendering window > size since the tool grab a part of the screen, you can't render at a bigger > resolution than the display's one. > > My 2 cents > > A > > Le ven. 29 mai 2020 à 10:05, cyrille henry <c...@chnry.net> a écrit : > >> hello, >> The open GL rendering is made in the GPU. grabbing the images by the CPU >> in order to compress them and to record them in the HDD is a slow operation. >> I think some software are able to compress the image in the GPU in order >> to grab a smaller file, but Gem don't. >> So, there is not a lot's of solution, and you already found them. >> >> I use pix_record when I need a correct quality of a small video. I use >> mjpa with good result. >> >> When I need better quality, I use pix_writer. Usually this can not be >> made in real time. I.E : I create a process that render exactly what I >> want, without human interaction. (For live performance, I record all human >> interaction in tables or texts file during the performance, then I use this >> data to play again the same performance) >> Then, It's possible to record both image annd sound in the same time. >> Even if pd will not be sync with real (external) time, the time inside pd >> will still stay consistent. I.E : even if there are lot's of audio dropout >> and the recording fps is 1/2 of the real fps, pd will still record a >> perfect audio file that will be perfectly sync with the video. You just >> need to start the audio and video recording with the same "bang". >> >> >> cheers >> Cyrille >> >> Le 28/05/2020 à 22:33, ffdd cchh a écrit : >> > Hi everyone, >> > >> > Is it possible to grab the OpenGL stream with ffmpeg and save to a >> video file? If so, could anyone point in the right direction as to how to >> capture the stream opened by Gem? >> > >> > The reason I ask this is that I am looking for ways to render video >> frames to a file and I have not managed a good result using neither >> [pix_record] nor [pix_writer]. >> > >> > With [pix_record] I have systematically tried all codecs and >> colorspaces and I had no luck. >> > >> > With [pix_writer], I did manage high quality frames with the correct >> colorspace which I then concatenated into a video (with ffmpeg). The >> drawback I have with [pix_writer] is the time it takes to write, which >> really complicates audio and video synching. >> > >> > Thanks!! >> > >> > Fede >> > -- >> > fdch.github.io <http://fdch.github.io> >> > >> > _______________________________________________ >> > Pd-list@lists.iem.at mailing list >> > UNSUBSCRIBE and account-management -> >> https://lists.puredata.info/listinfo/pd-list >> > >> >> >> >> _______________________________________________ >> Pd-list@lists.iem.at mailing list >> UNSUBSCRIBE and account-management -> >> https://lists.puredata.info/listinfo/pd-list >> > _______________________________________________ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list >
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