video player stm32 HUB75
on first two board and then changed to on board on
https://www.youtube.com/watch?v=0SOvpV5kFw0&list=PLQ42hqhrp2pTx7ryOxfo36ZguzxlAPJ-I&index=15&t=17s
made an LED display with STM32F730R8T6 and four 128x64 pixel P2 dot matrix LEDs. Read AVI file from micro SD card. Video and audio can be played simultaneously.
LED display specifications Resolution: 256x128 pixels PWM resolution: 1 to 12 bits per color Refresh rate: 63RPS (when PWM resolution is 12 bits and brightness is 50%), 85RPS (when PWM resolution is 8 bits and brightness is 50%) Real-time gamma correction: 0.6 to 5.0
The video buffer is a double buffer. However, tearing is terrible because it is not synchronized with the camera refresh rate.
Video format Video Format: RGB24 Codec Info: Basic Windows bitmap format. Width: 256 pixels Height: 128 pixels Frame rate: 15.000 to 30.000 FPS Audio Format: PCM Format settings, Endianness: Little Format settings, Sign: Signed Bit depth: 16 bits Channel (s): 1 to 2 channels Sampling rate: 44.1 to 48 kHz Alignment: Aligned on interleaves
