Den 07.01.2024 13:07, skrev Andrew Randrianasulu:
вс, 7 янв. 2024 г., 14:48 Terje J. Hanssen <[email protected]>:
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
yeah, DV tend to be non-square pixels (slightly). Not sure if we
account for this correctly or not on de/encoding.
Cin-aom-38_svt webm:
mediainfo dv01_07_av1_cingg.webm | grep Display
Display aspect ratio : 5:4
ffprobe -hide_banner dv01_07_av1_cingg.webm
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
not sure what happened here, may be you manually changed aspect ratio?
Repeated and controlled Cin-aom-38_svt webm rendering test of PAL SD-DV
source:
-------------------------------------------------------------------------------
According to Cinelerra-GG Quick Start Guide, section 4 – Choose Output
Format
You can skip this step if you want the format of your output to be the
same as your input.
Loaded dv01_07.dv
Settings > Format | Preset: PAL 576i DV(D)
Settings > Preference > Appearance | YUV color space: BT601 PAL
The compositor image was seemingly correct ~DAR 4:3
Rendered 2832 frames in 27.481 secs: 103.053 fps !
mediainfo dv01_07_cingg_svt-av1+opus.webm | grep Display
Display aspect ratio : 5:4
ffprobe -hide_banner dv01_07_cingg_svt-av1+opus.webm
Stream #0:0: Video: av1 (Main), yuv420p(pc, bt470bg/unknown/unknown),
720x576, SAR 1:1 DAR 5:4, 25 fps, 25 tbr, 1k tbn
Loaded dv01_07_cingg_svt-av1+opus.webm in VLC, the default DAR was
seemingly ~square (squeezed).
Changed it manually to 4:3 via menu.
Source HDV:
-----------
mediainfo hdv07_05.m2t | grep Display
Display aspect ratio : 16:9
ffprobe -hide_banner hdv07_05.m2t
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
FFmpeg webm:
mediainfo hdv07_05_m2t_svt-av1+opus.webm | grep Display
Display aspect ratio : 16:9
ffprobe -hide_banner hdv07_05_m2t_svt-av1+opus.webm
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
Cin-aom-38_svt webm:
mediainfo hdv07_05_m2t_cingg_svt-av1+opus.webm | grep Display
Display aspect ratio : 4:3
ffprobe -hide_banner hdv07_05_m2t_cingg_svt-av1+opus.webm
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
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