Hardware Acceleration

The Recorder is capable of doing Hardware acceleration for the Video Encoding. Hardware acceleration in video encoding is crucial for achieving higher efficiency, as GPUs are much more capable than CPUs in handling parallel processing. By offloading the encoding workload to the GPU, the system can manage more simultaneous video streams with lower CPU usage and energy consumption.

AMD

At this time, AMD GPUs are not supported for hardware acceleration in the Recorder.

Intel

Intel GPUs, specifically the Intel Arc A310 Eco and Intel Arc A770 models, have been tested for hardware acceleration. Both GPUs offer the same encoding capacity since they use identical encoding chips. For H.264 encoding, these GPUs can handle up to 46 simultaneous video streams at 1080p resolution at 25 frames per second. When it comes to AV1 encoding, they can process up to 14 simultaneous streams.

Nvidia

Nvidia consumer GPUs, though tested, are limited to encoding a maximum of 8 simultaneous video streams. Unfortunately, Nvidia GPUs are currently not supported for hardware acceleration in the Recorder.

Without Hardware Acceleration (CPU Encoding)

When hardware acceleration is not available, the encoding task falls back to the CPU. For VP8 encoding (which is currently used for Recording, H.264 is used for Streaming), 4 CPU cores are required per video stream, which significantly limits scalability. Encoding AV1 on the CPU is not feasible due to the high processing demands, making it an impractical solution for high-volume AV1 encoding without hardware support.