A Faster ESP32 JPEG Decoder? An intriguing issue appeared in the esp32-tv project that deals with speeding up JPEG file decoding using SIMD (Single Instruction Multiple Data) instructions, showing immense performance boost. However, there were some notable differences in speed when it comes to drawing the images versus simply decoding them. The problem was found to be with the DMA drawing mechanism and the way the new fast library decodes the image all at once. But despite this hiccup, by overlapped decoding and displaying process, a high frame rate can still be achieved. Joined me in this dissecting process and my initial tests showing approximately... 30 September 2023