Raylib MPEG Video Player: Converting YCbCr to RGB using Shaders

This project extends an example provided by raysan on running pl_mpeg within the raylib framework. For the original raysan implementation check this issue comment.

The example demonstrates the use of shaders to optimize video decoding by converting YCbCr to RGB on the GPU. While this improves performance compared to CPU-based conversion, certain limitations still exist. Specifically, on low-spec systems, the video and audio may exhibit glitches and breaks, particularly at resolutions above 1080p, even when using the shader.

Features

GPU-accelerated YCbCr to RGB conversion via shaders.
Support for MPEG-1 video decoding using pl_mpeg.
Audio and video playback integrated with raylib.

Limitations

On lower-spec systems, the GPU optimizations may still result in undesirable video quality, especially at high resolutions (e.g., 1080p or above).
Audio and video may exhibit glitches or breaks at higher resolutions.

Building and Running

To build the project, run: All dependencies, are automatically downloaded and compiled (if needed).

make build

To play the video, use the following command:

make play

Encoding MPEG Video for PL_MPEG

To encode a video in a compatible MPEG format for this player, you can use ffmpeg. The following command will convert an input video into MPEG-1 format with MP2 audio:

ffmpeg -i input.mp4 -c:v mpeg1video -q:v 0 -c:a mp2 -f mpeg output.mpg

Make sure to replace input.mp4 with your video file, and output.mpg with the desired output file name.

Dependencies