On 220925-09:05+0300, Andrew Randrianasulu wrote: > вс, 25 сент. 2022 г., 08:25 Miroslav Rovis via Cin < > [email protected]>: > > > I changed the subject line: 's/setting/presets/'. > > > > On 220924-17:55-0600, Phyllis Smith wrote: > > > From my quick read, it sounds like a thorough analysis and > > > great suggestion. [...] > > > > > On Sat, Sep 24, 2022 at 3:32 PM Miroslav Rovis via Cin < > > > [email protected]> wrote: [...] > > > > So, when using the setting in the render window, I figured > > > > out that there are better settings to use than the presets > > > > that are offered. And they are simpler too. > > > > settings live in ${cin_src_root}/ffmpeg/video
which read: $ cat /mnc/src_n0/Cin/cinelerra/cinelerra-5.1/ffmpeg/video/vp9_1920x1080_24or25or30fps.webm webm libvpx-vp9 # 20171119-2100 # based on https://developers.google.com/media/vp9/settings/vod/ # for explanations reference the Cinelerra Manual # 1920x1080 (24, 25 or 30 frames per second) b=1800k minrate=900k maxrate=2610k tile-columns=2 g=240 threads=8 quality=good crf=31 speed=4 $ Yes, that's what I (in the render window) used to change to: $ cat /mnc/src_n0/Cin/cinelerra/cinelerra-5.1/ffmpeg/video/vp9_1920x1080_24or25or30fps.webm webm libvpx-vp9 # 20171119-2100 # based on https://developers.google.com/media/vp9/settings/vod/ # for explanations reference the Cinelerra Manual # 1920x1080 (24, 25 or 30 frames per second) b=0 tile-columns=2 g=40 threads=8 crf=31 speed=4 row-mt=1 $ (all the above still from memory, but I'm soon to work as I proposed.) I'm not sure speed=4 and tile-columns=2 help/hurt/make-no-differenc., but I usually leave them as they were. > > and yeah, no row-mt=1 there apart from av1 profile. > I only have asymmetric arm 8 core in tablet, and two 4 x86-64 cores in > desktop and laptop for testing.... That's slow, I don't have a laptop, but I had desktops in such range. It's maybe half an order of magnitude more slowly to work motion plugins with such than what I have. (I went nearly broke, and with all of my savings gone to get me those, and I'm still recovering.) > > Because in this wiki page: > > > > In essence, the Wiki page for VP9 can tell you all: > > > > https://trac.ffmpeg.org/wiki/Encode/VP9 [*] > > previously there were recommendation on VP9 that correspond with > > the current presets in Cinelerra. The current version of VP9 > > wiki page is, I believe, just a few months old. > > > > With the presets that I find in current Cinelerra; I'm yet to > > open it today and work with it, but I choose preset that are > > recommended for 1920x1080 30fps and then edit it as below. > > > > I have no rendering, actually no Cinelerra opened right now, > > > > so, from memory: > > > > > > > > It's just b=0, then add crf=31 (or other number), and then > > > > row-mt=1, and remove the min and max settings from the > > > > preset. [...] -- Miroslav Rovis Zagreb, Croatia https://www.CroatiaFidelis.hr my PGP-key: https://www.croatiafidelis.hr/FCF13245ED247DCE443855B7EA9884884FBAF0AE.asc
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