audioMotion Background images into AVIF #85
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Sure it is not like huge amount of data, but the more images the more is saved of cause - and less bandwidth used, less use of host space. I also tested the decoding, and the biggie on the internet as far as I could see on images is not the CPU decoding, but the data getting to the place so the device can decode it which goes rather fast. I have 200 image folders to test that on my website, and the biggie was clearly getting the data moved, not the decoding itself Here we see a little over 50% reduction in size here, but it depends here and there - and again this AVIF has some kind of, some times healing taking out noise from jpg's, so all in all.... I really like this format: 
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Anyway, you can compare the 4 images for yourself if you want - and do with them what you want. |
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When I did a lot of testing, I was very astonish as how small it can make images and keep the quality up. Thinking to myself how it even does it, oh and by the way it also upgrades the 8 to 10 bits - so you might also sort out some banding as that apparently is a bit issue. And one does not gain anything from doing 8 bit on AVIF, actually the other way around, so do not adjust that part. The only thing really of any worth changing is the -q 60 parameter - if one wants better quality maybe. But I think I hit a pretty good smooth spot overall :) |
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So overall AVIF decoding is not a biggie as far as I can see as some seems to be afraid off, but the encoding, like making the AVIF can take some time for sure. And of cause the AVIF is based on the AV1 technology of video - although I have a much harder time sorting out things on the video department. Seems to have missed the mark on my first run - and need to do more testing and see if I can gain the upper hand. The problem with video is that there is so many more factors and balls to toy around with..... |
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I refixed the jpg files into AVIF with my default settings - see if you can see any difference and do whatever you will with them. Slicing some extra weight off. I love AVIF. Even when it compress it can also do some healing to the images. But anyway, you can do your own comparison, I just did them. And by the way been running AVIF in audioMotion for some time, have not seen any issues really as far as I know.
AVIF pictures made and BIN and code included.zip
Although less supported, and Github does not allow uploading of that kind of file - it is odd there still seem to be some support issues on this wonderful file format, I really like it. Video is whole another thing, which I still have not sorted out totally yet, clearly. And not sure I like Opus that much either for audio, although have fixed a lot of files with it now. But probably going to re-encode them from the originals.
Overall I put a little information in the text file in the zip - but here are the codes I used, the binaries are in the zip as well and for Linux:
This is what I have used for your images, 2 codes same thing beside one needing parallel to be installed.
# # # BIN AVIFENC # # # # BIN AVIFENC # # # # BIN AVIFENC # # # # BIN AVIFENC
----Without PARALLEL Dependency! :
time find . -type f -iregex '..(png|jpe?g)$' | while read -r file; do avifenc -j 12 -a tune=iq -q 60 -d 10 -s 0 -y 444 "$file" "${file%.}.avif" done echo "# # # # Finish # # # #"
----Dependency: sudo apt install parallel #### making an input output? #### -j is how many parallels runs and the next -j how many CPU/Threads is used for each instance depending on your processor change the first number:
time find . -type f -iregex '.*.(png|jpe?g)$' | parallel -j 6 avifenc -j 02 -a tune=iq -q 60 -d 10 -s 0 -y 444 {} {.}.avif; echo "# # # # Finish # # # #"
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