вт, 9 янв. 2024 г., 01:25 Andrew Randrianasulu <randrianasulu@gmail.com>:

пн, 8 янв. 2024 г., 23:50 Terje J. Hanssen <terjejhanssen@gmail.com>:

Den 08.01.2024 20:54, skrev Andrea paz:
> I created a bd.m2ts file by putting "HDV 1080i/25" as the preset.

I think there possibly is a fault in the "HDV 1080i/25" preset (mixed
with the (FHD) "1080i/25 preset" as mentioned in another post today:
https://lists.cinelerra-gg.org/pipermail/cin/2024-January/007628.html

> Bd-render worked until the renderig was complete then CinGG shut down
> (I don't have a BD-burner). Doing ffprobe on this video I get:
>
> Input #0, mpegts, from 'bd.m2ts':
> Duration: 00:01:06.91, start: 0.074667, bitrate: 10242 kb/s
> Program 1
> Stream #0:0[0x1011]: Video: h264 (High) ([27][0][0][0] / 0x001B),
> yuv420p(tv, bt709, top first), 1440x1080 [SAR 1:1 DAR 4:3], 25 fps, 25
> tbr, 90k tbn
> Stream #0:1[0x1100](ita): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
> stereo, fltp, 192 kb/s
>
> The video is slightly stretched and reduced to 4:3 from the original
> 16:9. By applying the downsample filter and setting H and V to 40 the
> pixels become clearly visible and can be seen to be square.(cfr
> http://www.g-raffa.eu/Cinelerra/HOWTO/anamorphic.html)
>
> In postimage, I have uploaded several screenshots showing the
> "info--details" of the three original sources that make up the video,
> of the bd.m2ts (hdv.jpeg) file, and also of how the "set format" is
> automatically set.
> [@Andrew, is it possible to put PAR and DAR in the Set Format window
> as shown in the image?]
>
> Note: If I force, in Set Format, the aspect ratio (DAR) to 16:9 I get,
> with the downsample filter, rectangular pixels. But the video is no
> longer deformed....
Yes, I am also curious, because I tried to set the parameters manually
and then rendered to webm, but still 4:3 format on stored file icon and
displayed in VLC. I got a feeling that manual changing W Rate to 1.3333
didn't really work and was changed back to 1.000. Can really Canvas
Width/Height, W Rate/H Rate and Aspect Ratio in Set> Format be user
defined independently?

(display) aspect ratio surely set as part of "profile" see

cinelerra/defaultformats.h

W rate/H rate seems to be purely informational, as in you can set user preset and then manually change dimensions/aspect rate and it will show .. not exactly rate as num/den, but more like width multiplier / height multiplier. So, you enter NOT 4 and 3 there (it will make cannas 4*1440 width, 1080 * 3 height!) but 1.3333 and 1.0 to see dimensions go fullHD. or set fullhd from dropdown menu and see ratio go to 1.333/1.0 Seems more like local calculator, because ratio[] array is local to this code module and mainwindow.C does not consult it for SAR - going purely by set display aspect ratio and dimensions.