VLC for Android intelligently leverages the Android Hardware Abstraction Layer (HAL). It attempts to use the device's dedicated hardware video decoder for performance efficiency. If a specific format is unsupported by the hardware, VLC seamlessly falls back to software decoding (using the CPU). This "fallback" mechanism is what distinguishes VLC, ensuring that a file will play even on older or lower-end devices lacking modern decoder chips.
To maintain its edge, VLC for Android includes experimental features that push hardware boundaries: vlc media player in android