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Re: Guix video repository: First video script commited
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From: |
Giovanni Biscuolo |
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Subject: |
Re: Guix video repository: First video script commited |
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Date: |
Fri, 01 Mar 2019 15:53:52 +0100 |
Hi Laura and sirgazil,
I was able to build videos in 01-installation-from-script following the
updated informations in the README, that is:
1. environment.sh
2. install-fonts.sh
3. cd 01-installation-from-script/ && buildall.sh
the only "strange" message I see during the build is
--8<---------------cut here---------------start------------->8---
convert: profile 'icc': 'RGB ': RGB color space not permitted on grayscale PNG
`01-installation-from-script/en_US/out/secondCli-0148.png' @
warning/png.c/MagickPNGWarningHandler/1667
--8<---------------cut here---------------end--------------->8---
but AFAIK we should ignore it
https://github.com/ImageMagick/ImageMagick/issues/884#issuecomment-451084328
(or make it quiet?)
sirgazil <address@hidden> writes:
[...]
> + Text is not rendered with the appropriate font (known issue).
with commit 1dd8478 font issues are gone: done!
> + Firefox 65.0.1 says "Video can't be played because the file is
> corrupt."
same here: each video built in 01-installation-from-script/en_US/videos/
fails to be played in Firefox 60.3.0esr
Chromium 72.0.3626.119 can play all them, but colours are altered like
with Totem from sirgazil tests; chromium auto-rescales the different
aspect ratio in cli and noCli videos
[...]
> As for the corrupted videos, in the Totem video player, the video plays
> but black colors are displayed green instead (maybe result of the
> corruption?). In VLC the video plays OK, and the colors are fine.
mpv also plays the video with unaltered colours but is non able to
manage the different aspect ratios: I have to switch to full-screen (so
auto-rescales) in cli sessions video parts and switch back to normal
screen when video svitches to noCli
[...]
about aspect ratio of videos, mediainfo reports:
--8<---------------cut here---------------start------------->8---
[...] 01-installation-from-script/en_US/videos $ mediainfo *
General
Complete name : 01-installation-from-script.webm
Format : WebM
Format version : Version 4 / Version 2
File size : 8.80 MiB
Duration : 3 min 47 s
Overall bit rate : 324 kb/s
Writing application : Lavf58.20.100
Writing library : Lavf58.20.100 / Lavf58.20.100
Video
ID : 1
Format : VP9
Codec ID : V_VP9
Duration : 3 min 47 s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 FPS
Writing library : Lavc58.35.100 libvpx-vp9
Default : Yes
Forced : No
DURATION : 00:03:47.824000000
Audio
ID : 2
Format : Opus
Codec ID : A_OPUS
Duration : 3 min 47 s
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 48.0 kHz
Bit depth : 32 bits
Compression mode : Lossy
Writing library : Lavc58.35.100 libopus
Default : Yes
Forced : No
DURATION : 00:03:47.778000000
General
Complete name :
1.clino.01-installation-from-script.webm
Format : WebM
Format version : Version 4 / Version 2
File size : 2.41 MiB
Duration : 56 s 973 ms
Overall bit rate : 355 kb/s
Writing application : Lavf58.20.100
Writing library : Lavf58.20.100 / Lavf58.20.100
Video
ID : 1
Format : VP9
Codec ID : V_VP9
Duration : 56 s 967 ms
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 FPS
Writing library : Lavc58.35.100 libvpx-vp9
Default : Yes
Forced : No
DURATION : 00:00:56.973000000
Audio
ID : 2
Format : Opus
Codec ID : A_OPUS
Duration : 56 s 973 ms
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 48.0 kHz
Bit depth : 32 bits
Compression mode : Lossy
Writing library : Lavc58.35.100 libopus
Default : Yes
Forced : No
DURATION : 00:00:56.869000000
General
Complete name : 1.cliyes.firstCli.webm
Format : WebM
Format version : Version 4 / Version 2
File size : 4.73 MiB
Duration : 1 min 48 s
Overall bit rate : 367 kb/s
Writing application : Lavf58.20.100
Writing library : Lavf58.20.100 / Lavf58.20.100
Video
ID : 1
Format : VP9
Codec ID : V_VP9
Duration : 1 min 48 s
Width : 1 495 pixels
Height : 1 058 pixels
Display aspect ratio : 1.413
Frame rate mode : Constant
Frame rate : 20.000 FPS
Writing library : Lavc58.35.100 libvpx-vp9
Default : Yes
Forced : No
DURATION : 00:01:48.157000000
Audio
ID : 2
Format : Opus
Codec ID : A_OPUS
Duration : 1 min 48 s
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 48.0 kHz
Bit depth : 32 bits
Compression mode : Lossy
Writing library : Lavc58.35.100 libopus
Default : Yes
Forced : No
DURATION : 00:00:01.008000000
General
Complete name :
2.clino.01-installation-from-script.webm
Format : WebM
Format version : Version 4 / Version 2
File size : 400 KiB
Duration : 9 s 40 ms
Overall bit rate : 363 kb/s
Writing application : Lavf58.20.100
Writing library : Lavf58.20.100 / Lavf58.20.100
Video
ID : 1
Format : VP9
Codec ID : V_VP9
Duration : 9 s 33 ms
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 FPS
Writing library : Lavc58.35.100 libvpx-vp9
Default : Yes
Forced : No
DURATION : 00:00:09.040000000
Audio
ID : 2
Format : Opus
Codec ID : A_OPUS
Duration : 9 s 40 ms
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 48.0 kHz
Bit depth : 32 bits
Compression mode : Lossy
Writing library : Lavc58.35.100 libopus
Default : Yes
Forced : No
DURATION : 00:00:08.996000000
General
Complete name : 2.cliyes.secondCli.webm
Format : WebM
Format version : Version 4 / Version 2
File size : 918 KiB
Duration : 45 s 607 ms
Overall bit rate : 165 kb/s
Writing application : Lavf58.20.100
Writing library : Lavf58.20.100 / Lavf58.20.100
Video
ID : 1
Format : VP9
Codec ID : V_VP9
Duration : 45 s 600 ms
Width : 1 495 pixels
Height : 1 058 pixels
Display aspect ratio : 1.413
Frame rate mode : Constant
Frame rate : 20.000 FPS
Writing library : Lavc58.35.100 libvpx-vp9
Default : Yes
Forced : No
DURATION : 00:00:45.607000000
Audio
ID : 2
Format : Opus
Codec ID : A_OPUS
Duration : 45 s 607 ms
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 48.0 kHz
Bit depth : 32 bits
Compression mode : Lossy
Writing library : Lavc58.35.100 libopus
Default : Yes
Forced : No
DURATION : 00:00:01.008000000
General
Complete name :
3.clino.01-installation-from-script.webm
Format : WebM
Format version : Version 4 / Version 2
File size : 387 KiB
Duration : 8 s 40 ms
Overall bit rate : 395 kb/s
Writing application : Lavf58.20.100
Writing library : Lavf58.20.100 / Lavf58.20.100
Video
ID : 1
Format : VP9
Codec ID : V_VP9
Duration : 8 s 33 ms
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 FPS
Writing library : Lavc58.35.100 libvpx-vp9
Default : Yes
Forced : No
DURATION : 00:00:08.040000000
Audio
ID : 2
Format : Opus
Codec ID : A_OPUS
Duration : 8 s 40 ms
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 48.0 kHz
Bit depth : 32 bits
Compression mode : Lossy
Writing library : Lavc58.35.100 libopus
Default : Yes
Forced : No
DURATION : 00:00:07.988000000
--8<---------------cut here---------------end--------------->8---
we should find a way to scale all "cliyes" videos to 1920x1080 pixels
no idea why colours are altered in the browser (our main target, I
suppose)
..I have to stop for today
HTH!
Thanks!
Giovanni
--
Giovanni Biscuolo
Xelera IT Infrastructures
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