You may remember some time ago we did some experiments measuring the decode and drawing speeds of various JPEG decoder libraries on the ESP32.
One of the libraries we used was the amazing JPEGDEC decoder library from Larry.
He’s been doing some work on the library and using the SIMD instructions on the S3 he’s managed to speed it up considerably.
My own tests show that we can shave off over 10ms from the decode time!
Given how fast it was already this is a really impressive achievement!
Have a read of the old article for more details about the different libraries and why the drawing overhead is interesting.