Question about image quality
audiomuze opened this issue · comments
I just downloaded Apple Music's image for https://music.apple.com/us/album/brighter-eyes-ep/1565783103 using right click, open image in new window and replacing the filename with the URL yielded by https://atisket.pulsewidth.org.uk/, which in this instance is:
https://is3-ssl.mzstatic.com/image/thumb/Music125/v4/1c/7a/bb/1c7abbc6-5e36-91d5-3638-9b575da559e5/195269089238_cover.jpg/9999x9999-100.jpg. That file is ~1.4M in size.
The file retrieved by get_cover_art is:
https://is2-ssl.mzstatic.com/image/thumb/Music125/v4/1c/7a/bb/1c7abbc6-5e36-91d5-3638-9b575da559e5/195269089238_cover.jpg/9999x9999.jpg, which is ~427k
Comparing the URLs, (and ignoring the server name which is irrelevant for this report) the URLs are identical except for the better quality image having -100 appended to the end of the filename, before the file extension:
https://is3-ssl.mzstatic.com/image/thumb/Music125/v4/1c/7a/bb/1c7abbc6-5e36-91d5-3638-9b575da559e5/195269089238_cover.jpg/9999x9999-100.jpg
I've tested same manually using a browser and get identical results. Could you pleaase amend the code called when --art-size 9999 is invoked to append -100 to the filename such that it takes the form 9999x9999-100.jpg for download.
Oh interesting, when I right-click the cover art I get a file ending in "500x500bb" not "9999x9999-100", what do the suffixes mean? Is it because I'm in the US?
Also I'm surprised about get_cover_art using a URL that ends with "9999x9999.jpg" instead of "9999x9999bb.jpg", the "bb" is hard-coded in the script.
I actually have no idea what "bb" or "-100" does, but I did notice that either suffix works (and even without the suffix), and this isn't even specific to 9999x9999. Do you know what these suffixes mean?
Apologies, I'm clearly not communicating effectively. If I right click on the image in the album page and open image in new tab it opens to:
If I then replace "1000" with "9999" and "webp" to "jpg", changing the URL to:
it yields the 427kb JPG that get_cover_art is downloading.
To get the full-fat high-resolution image the "bb" should be replaced with "-100", changing the URL to:
https://is2-ssl.mzstatic.com/image/thumb/Music125/v4/1c/7a/bb/1c7abbc6-5e36-91d5-3638-9b575da559e5/195269089238_cover.jpg/9999x9999-100.jpg
which is the ~1.4MB file I referenced.
So the ask is to change the code to drop the "bb" suffix and replace it with "-100" so that the highest resolution image is yielded and downloaded.
I'm not entirely sure what the suffixes mean, but my guess is that the "-100" suffix causes Apple Music to yield the original uncompressed image.
Now you should be able to update to 1.5.9 and run with --art-quality 100, let me know if it doesn't work for you
Thanks, I'll pull and check.
This seems to be working as intended. Thanks!