Den 06.01.2024 20:42, skrev Phyllis Smith:
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.
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.
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.
I am looking into this and
audio bug but so far no solution for
either,sorry.
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.
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(?)
Phyllis, have you tried if possibly VLC's Media>
Open Disc can playback the DVD or BD video format?
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:
easy to see the difference between 4:3 sqeezed webm vs
16:9 wide from (HDV) wide format.
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.
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:
Source SD
DV:
-------------
mediainfo dv01_07.dv | grep Display
Display aspect ratio : 4:3
ffprobe -hide_banner dv01_07.dv
Stream #0:0: Video: dvvideo, yuv420p, 720x576
[SAR 16:15 DAR 4:3], 25000 kb/s, 25 fps, 25 tbr, 25
tbn, 25 tbc
FFmpeg 6.0 webm:
mediainfo dv01_07_svt-av1_pr10.webm | grep Display
Display aspect ratio : 4:3
ffprobe -hide_banner dv01_07_svt-av1_pr10.webm
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