Verilog and VHDL
There is a lot of Verilog on Github.
Anyone can post Verilog there. Here are some of the higher quality repositories for video processing. It is expected that more will be added to this list.
ECP5 DVI I/O can be found In the examples directory [18] for the popular ULX3M board. There is VHDL code for DVI out, with a Verilog wrapper. DVI out supports 24 bit 1920*1080 frames @30 FPS. The design uses the I/O blocks which were designed for controlling DDR memory using a clock source from the FPGA.
The Brilliant Lab’s SDK runs on the Frame glasses which include a camera, a display, a bluetooth microcontroller, and an DPGA. The Verilog SDK has a complete pipeline. Of particular interest are the MPEG compression circuits.
FPGA-LCD-Driver fork by Gohran Mahovlic is a VHDL library for GateMate which uses an LVDS signal to drive a TFT LCD display with a test pattern.
Litex provides color space conversion between RGB and YCbCr.
Simpler DDR3 Controller. View
This can do < 125 Mhz x 32 bit wide DDR3 on Lattice and other devices.