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 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