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<div class="moz-cite-prefix">Den 07.01.2024 13:07, skrev Andrew
Randrianasulu:<br>
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cite="mid:CA+rFky7HbPtLBTSjeUF0o1RRF8xz0Nt824YEVHepGfk49osAbw@mail.gmail.com">
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<div dir="ltr" class="gmail_attr">вс, 7 янв. 2024 г., 14:48
Terje J. Hanssen <<a
href="mailto:terjejhanssen@gmail.com"
moz-do-not-send="true" class="moz-txt-link-freetext">terjejhanssen@gmail.com</a>>:<br>
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<div>Den 06.01.2024 20:42, skrev Phyllis Smith:<br>
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<div style="font-size:small" class="gmail_default">Applied
the 3 patches and still a problem playing DVD on
LG device which previously worked. Not to be
difficult, but if we break DVD/Bluray disc
creation, it will probably never work again and I
use it frequently.</div>
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<div style="font-size:small" class="gmail_default">CinGG
is never going to be perfect but it has been
working this way for a long time and it has been
usable, even if the DAR is not always right.
There must be another way to reset that if
needed. But I will keep testing.<br>
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<div dir="auto">I think right now we have
issues with ffmpeg internals (libavformat)
not quite happy with stream (container)
level SAR being set ... it breaks our custom
dvd/bluray encoding, as discovered by
Phyllis.</div>
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<div dir="auto">I am looking into this and
audio bug but so far no solution for
either,sorry.</div>
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<br>
Yes, even that DVD and Blu-ray video discs are lesser
usual than previously, I agree we have to keep this
features working in CinGG. <br>
I guess it is the autoplay function that may not work,
and that a wrong aspect ratio video disc format possibly
can be seen as data discs(?)<br>
<br>
Phyllis, have you tried if possibly VLC's Media>
Open Disc can playback the DVD or BD video format?<br>
<br>
As I said, also at the icon level in Gnome File manager,
it it possible to see that the CinGG rendered webm files
are visually squeezed horizontally, compared with the
correct format muxed with FFmpeg 6.0:<br>
easy to see the difference between 4:3 sqeezed webm vs
16:9 wide from (HDV) wide format.<br>
<br>
In VLC these files are loaded squeezed as default, but
it can be easily corrected with VLC's Videol > Aspect
Ratio and select 4:3 for webm from SD DV sources and
16:9 for webm from HDV 1080i files.<br>
<br>
<br>
Not to repeat myself, but below is a condensed output
from how Mediainfo and FFprobe detect the aspect ratios
of my tested SD and HDV sources and webm files:<br>
<br>
<font face="Courier New, Courier, monospace">Source SD
DV:<br>
-------------<br>
mediainfo dv01_07.dv | grep Display<br>
Display aspect ratio : 4:3<br>
ffprobe -hide_banner dv01_07.dv<br>
Stream #0:0: Video: dvvideo, yuv420p, 720x576
[SAR 16:15 DAR 4:3], 25000 kb/s, 25 fps, 25 tbr, 25
tbn, 25 tbc<br>
<br>
FFmpeg 6.0 webm:<br>
mediainfo dv01_07_svt-av1_pr10.webm | grep Display<br>
Display aspect ratio : 4:3<br>
ffprobe -hide_banner dv01_07_svt-av1_pr10.webm<br>
Stream #0:0: Video: av1 (Main), yuv420p(tv), 720x576
[SAR 1:1 DAR 5:4], SAR 16:15 DAR 4:3, 25 fps, 25 tbr,
1k tbn, 1k tbc<br>
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<div dir="auto">yeah, DV tend to be non-square pixels
(slightly). Not sure if we account for this correctly or not
on de/encoding.</div>
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<div><font face="Courier New, Courier, monospace"> <br>
Cin-aom-38_svt webm:<br>
mediainfo dv01_07_av1_cingg.webm | grep Display<br>
Display aspect ratio : 5:4<br>
ffprobe -hide_banner dv01_07_av1_cingg.webm<br>
Stream #0:0: Video: av1 (Main), yuv420p(tv,
bt470bg/unknown/unknown), 720x576 [SAR 1:1 DAR 5:4],
25 fps, 25 tbr, 1k tbn, 1k tbc<br>
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<div dir="auto">not sure what happened here, may be you manually
changed aspect ratio?</div>
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<font face="Courier New, Courier, monospace"><br>
Repeated and controlled Cin-aom-38_svt webm rendering test of PAL
SD-DV source:<br>
-------------------------------------------------------------------------------<br>
According to Cinelerra-GG Quick Start Guide, section 4 – Choose
Output Format<br>
You can skip this step if you want the format of your output to be
the same as your input.<br>
<br>
Loaded dv01_07.dv<br>
Settings > Format | Preset: PAL 576i DV(D) <br>
Settings > Preference > Appearance | YUV color space: BT601
PAL<br>
<br>
The compositor image was seemingly correct ~DAR 4:3<br>
<br>
Rendered 2832 frames in 27.481 secs: 103.053 fps ! <br>
<br>
mediainfo dv01_07_cingg_svt-av1+opus.webm | grep Display<br>
Display aspect ratio : 5:4<br>
ffprobe -hide_banner dv01_07_cingg_svt-av1+opus.webm<br>
Stream #0:0: Video: av1 (Main), yuv420p(pc,
bt470bg/unknown/unknown), 720x576, SAR 1:1 DAR 5:4, 25 fps, 25
tbr, 1k tbn<br>
<br>
Loaded dv01_07_cingg_svt-av1+opus.webm in VLC, the default DAR was
seemingly ~square (squeezed). <br>
Changed it manually to 4:3 via menu.<br>
<br>
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<blockquote type="cite"
cite="mid:CA+rFky7HbPtLBTSjeUF0o1RRF8xz0Nt824YEVHepGfk49osAbw@mail.gmail.com">
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<div><font face="Courier New, Courier, monospace"> <br>
<br>
Source HDV:<br>
-----------<br>
mediainfo hdv07_05.m2t | grep Display<br>
Display aspect ratio : 16:9<br>
ffprobe -hide_banner hdv07_05.m2t<br>
Stream #0:0[0x810]: Video: mpeg2video (Main)
([2][0][0][0] / 0x0002), yuv420p(tv, bt709, top
first), 1440x1080 [SAR 4:3 DAR 16:9], 25000 kb/s, 25
fps, 25 tbr, 90k tbn, 50 tbc<br>
<br>
FFmpeg webm:<br>
mediainfo hdv07_05_m2t_svt-av1+opus.webm | grep
Display<br>
Display aspect ratio : 16:9<br>
ffprobe -hide_banner hdv07_05_m2t_svt-av1+opus.webm<br>
Stream #0:0: Video: av1 (Main), yuv420p(tv, bt709),
1440x1080 [SAR 1:1 DAR 4:3], SAR 4:3 DAR 16:9, 25 fps,
25 tbr, 1k tbn, 1k tbc<br>
<br>
Cin-aom-38_svt webm:<br>
mediainfo hdv07_05_m2t_cingg_svt-av1+opus.webm | grep
Display<br>
Display aspect ratio : 4:3<br>
ffprobe -hide_banner
hdv07_05_m2t_cingg_svt-av1+opus.webm<br>
Stream #0:0: Video: av1 (Main), yuv420p(pc,
bt709/unknown/unknown), 1440x1080 [SAR 1:1 DAR 4:3],
25 fps, 25 tbr, 1k tbn, 1k tbc<br>
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