Check FFmpeg Hardware Acceleration Methods in Windows

This guide provides a straightforward method to identify the hardware acceleration technologies supported by your FFmpeg installation on Windows. You will learn the exact command-line arguments needed to query your system’s GPU capabilities, enabling faster video encoding, decoding, and transcoding processes.

Step 1: Open the Command Prompt

To begin, open the Windows Command Prompt or PowerShell. You can do this by pressing the Windows Key, typing cmd or powershell, and pressing Enter.

Step 2: List Enabled Hardware Accelerators

Enter the following command to list all hardware acceleration methods compiled into your FFmpeg build and supported by your operating system:

ffmpeg -hwaccels

This command will output a list of available acceleration APIs. On a Windows system with a dedicated or integrated GPU, you will typically see one or more of the following:

• dxva2: DirectX Video Acceleration 2 (broadly supported on older and modern Windows systems).
• d3d11va: Direct3D11 Video Acceleration (the modern Windows standard).
• cuda / nvdec / nvenc: NVIDIA proprietary hardware acceleration.
• qsv: Intel Quick Sync Video.
• amf: AMD Advanced Media Framework.

Step 3: Check for Specific Hardware Encoders and Decoders

While listing the hardware acceleration methods tells you what APIs are available, you must also verify if the specific hardware-accelerated codecs (like H.264 or HEVC) are supported by your FFmpeg binary.

To search for available hardware-accelerated decoders, run:

ffmpeg -decoders | findstr /I "cuda nvdec qsv dxva2 d3d11va"

To search for available hardware-accelerated encoders, run:

ffmpeg -encoders | findstr /I "nvenc qsv amf"

The output will display the specific codec names (for example, h264_nvenc for NVIDIA or h264_qsv for Intel Quick Sync) that you can use in your FFmpeg commands to offload processing to your GPU.