В сообщении от Thursday 12 November 2020 21:41:47 Terje J. Hanssen via Cin написал(а):
Den 12.11.2020 12:00, skrev Andrew Randrianasulu via Cin:
В сообщении от Thursday 12 November 2020 04:00:14 Terje J. Hanssen via Cin написал(а):
Firstly, I'm not a programmer, but as I'm retired and hope to spend some time forward to learn Cin-GG to edit my hobby recorded and archived SD and HDV.
In general, the most user friendly would be if the automatic selected Preset format fits correctly to each loaded standard video w/audio file format. For unknown formats, PAL vs NTSC should preferably be choosed based on the actual time zone (CGG manual page 416, above Figure 13.1).
*) User custom verification and selection of presets or video technical details, assume the user is skilled on the video format in use.
Den 11.11.2020 18:54, skrev Andrew Randrianasulu via Cin:
В сообщении от Wednesday 11 November 2020 20:12:44 Terje J. Hanssen via Cin написал(а):
I will just add that the HDV format consist of three versions: https://en.wikipedia.org/wiki/HDV#Specifications
HDV 720p 720p/60, 720p/30, 720p/24, 720p/50, 720p/25 but may be those can be already selected, just not as preset with HDV in name? 720p/60 is the only 720p preset available. *) Each details can be custom selected, although not ideally? Yes, I was reluctant to add ALL variations because they will make list longer. But I can do this.
A sub-menu next for each of the three HDV groups seems to be even better, though more complicated(?)
For me, I don't know how to make sub-menus yet :D
According to the Wikipedia HDV specifications: 720p: Pixel aspect ratio 1.00 (PAR), Frame size in pixels 1280x720, Frame aspect ratio 16:9 (DAR), MPEG2 Video compr. (profile & level: MP@H-14/HL) 1080i: Pixel aspect ratio 1.33 (PAR), Frame size in pixels 1440x1080, Frame aspect ratio 16:9 (DAR), MPEG2 Video compr. (profile & level: MP@H-14)
From the Cin Preset Canvas size I noticed the following proportions can be derived, in case they tell something ......... 720p: W Ratio/H Ratio=0.8889/0.6667=1.33, Width/W Ratio=1280/0.8889=1440, Height/H Ratio=720/0.6667=1080 1080i: W Ratio/H Ratio=1.3333/1.0000=1.33, Width/W Ratio=1920/1.3333=1440, Height/H Ratio=1080/1.000=1080
HDV 1080i 1080i/30 (29.97), 1080i/25
HDV 1080p 1080p/30 (29.97), 1080p/24 (23.98), 1080p/25 Those seems to be more tricky, because I still not sure how they should show up in Compositor and Viewer. With correct-for-display aspect ratio? But then how masks/titles will work?
I'm not sure about all other HD-video formats, but the HDV formats seems to be supported HDTV formats (broadcast standards) and supported Blu-ray video formats 1280x720 (HD-1) HD ready or Standard HD 1440x1080 (HD-2) and 1920x1080, (Full HD, FHD)
https://en.wikipedia.org/wiki/High-definition_television#Display_resolutions https://en.wikipedia.org/wiki/List_of_common_resolutions#Digital_TV_standard... https://en.wikipedia.org/wiki/High-definition_video#Common_high-definition_v... https://en.wikipedia.org/wiki/Blu-ray#Video
In case you have not seen it, the replies to my related mail request on the old CinCVS mail list might have some more information: https://www.mail-archive.com/[email protected]/msg05573.html Yes, I see
https://www.mail-archive.com/cinelerra%40skolelinux.no/msg05582.html
this one not very encouraging:
====== Note that Cinelerra does two tasks: render and display.
To render, Cinelerra treats the 1440:1080 as square pixels. This is not optimal if something you render has both horizontal and vertical extent, but is driven by only one parameter, like the radius of the radial grandient, a radial blur, or the 'feather' radius of the masks. Such things will turn into ellipses because:
To display, Cinelerra simply stretches the available pixels to 16:9 ratio.
-- Hannes =========
this question of you was left w/o answer, at least it was off-thread. https://www.mail-archive.com/cinelerra%40skolelinux.no/msg05586.html
====== For captured HDV and SD DV footages it looks like Cinelerra automatically takes care of scaling. What doesn't look quite clear for me yet, is what has to be done in Cinelerra for in cam downconverted HDV to anamorphic DV? =======
I'll use search and try to read code a bit more.
I think I found manual on how to mix DV and HDV in same project in Cinelerra, but it was involving manual scaling?
http://www.g-raffa.eu/Cinelerra/HOWTO/anamorphic.html#_how_to_add_16_9_anamo...
ah, no, it has no specific mention of HDV in this section, but our problem is indeed those non-square pixels, and how to paint over them ....
I found another, related mail thread (2016): [CinCV TNG] Create 16x9 video from 4x3 sources https://lists.cinelerra-cv.org/pipermail/cinelerra/2016q2/004927.html
Thanks, according to this thread same DVD disk may look different on different players/TV/monitors ... My friend said some of those display devices may have their own fine controls for scaling (on-screen menu?). But I only have this monitor (1440x900 it says IPS LED LG on front and "Manufacturer: GSM Model: 5b01 Serial#: 5886" in X.log) as my viewing device (I have older CRT monitors, Samsung SyncMaster 550b, but for now I prefer not to unplug vga cable too much - it sometimes loose red and blue signals, so I prefer not to strain it more)
Terje J. H
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