Hardware Decoder
The system supports hardware video decoding of AVC(H.264), HEVC(H.265) and MJPEG video on NVIDIA (GeForce, Quadro, Jetson), Intel, and AMD (Linux only) platforms.
Up-to-date drivers are required for correct operation.
Windows
NVIDIA
Go to https://www.nvidia.com/Download/index.aspx and download the latest drivers for your GPU.
Linux
NVIDIA
Run the following commands to install the (at the time of writing) latest stable NVIDIA drivers.
sudo add-apt-repository restricted
sudo apt-update
sudo apt-get install nvidia-driver-580AMD
Follow the instructions at https://www.amd.com/en/support/download/linux-drivers.html for the latest drivers.
Settings
There are some hardware decoder specific settings for supported video inputs.
- Preferred Decoder
-
This setting is available if the computer has two GPUs, one internal and one external. This selects the GPU used for decoding, a restart of the software is necessary when changed!
- Skip Frame
-
Makes the software drops the selected number of frames in a row before decoding, this will result in a slower frame rate but will ease the load on the decoder. The use case is when wanting to reduce latency from a camera by having the camera run in a higher framerate than is used for streaming (MJPEG only).
NVIDIA (NVDEC)
- Decode Device
-
The CUDA GPU device ID. 0 is the default device.
- FPS Match
-
Matches the decode FPS to the render FPS. Useful in Producer only.
- Min Queue
-
Minimum decode queue before starting to decode.
- Max Queue
-
Maximum decode queue to keep.
- Max Dec. Surfaces
-
Maximum number of decode surfaces (buffers) that NVDEC is allowed to hold in memory. More surfaces means better performance but requires more memory.
- CUDA Buf. Depth
-
Only applicable if Decode Device > 0. More buffers means better performance and stability but requires more memory.
- Decode Queue
-
The minimum decode queue length before starting to decode.