FFmpegAndroid
FFmpeg implements video cropping, watermarking, transcoding
...The project also covers real-time streaming capabilities such as local and live RTMP pushing using H264 encoding, making it suitable for building live broadcasting applications. It integrates OpenGL-based filters and GPUImage effects to enhance video processing performance and visual output. Beyond implementation, the repository includes detailed documentation on FFmpeg commands, JNI integration, and multimedia protocols, offering both practical tools and educational resources. With support for decoding, encoding, and rendering pipelines, it acts as a full-stack reference for Android multimedia engineering.