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