On Thu, Jul 30, 2020 at 01:08:48AM +0200, Tobias Geerinckx-Rice via Bug reports for GNU Guix wrote: > nginx can easily sniff iOS/Macintosh user agents and serve them an inferior > format to match, such as h264 with MP3 audio, which can both be encoded > using free software in Guix.
Here is where the videos are created: https://git.savannah.gnu.org/cgit/guix/videos.git/tree/Makefile ------ $(NUMBER).clino.$(VIDEO).webm: \ $(VIDEO)/$(LOCALE_LANG)/durations.txt \ $(VIDEO)/$(LOCALE_LANG)/audios/all.mp3 ffmpeg -y -f concat -vsync cfr \ -i $(VIDEO)/$(LOCALE_LANG)/durations.txt \ -i $(VIDEO)/$(LOCALE_LANG)/audios/all.mp3 \ -c:a libopus -b:a 192k \ -c:v libvpx-vp9 -crf 31 -b:v 0 -pix_fmt yuv420p \ -af apad -shortest \ -vf fps=25 -threads 4 $(VIDEO)/$(LOCALE_LANG)/videos/$@; make clean_noCli ------ So, we'd need to add a target that did "-c:a copy -c:v libx264" and add some logic to create two videos instead of one. I didn't look into it closely yet to see if that will be simple or not.
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