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Optional display of CPU and GPU used, speed of encoding and decoding - #509
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Frame rate from dwRate/dwScale of the video stream header.
Info when a Vulkan device is selected for decoding, with its name. Speed of the encoding (FFmpeg) and of the decoding, compared to the duration of the content (frames per second if unknown), with the CPU and the GPU names and the share of each decoder if several decoders are used in parallel (e.g. GPU 57% / CPU 43%), also during the decoding in the progress indicator, which is erased at the end.
retokromer
approved these changes
Oct 28, 2026
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New --show-stats option, showing which hardware is used and how fast encoding and decoding are.
GPU selection: when the FFmpeg decoder with Vulkan is selected (--decoder auto or vulkan), an info line gives the device name, and says when it is a CPU implementation (e.g. lavapipe).
Encoding speed: speed of the FFmpeg encoding compared to the duration of the content, with the encoder name and the GPU (ffv1_vulkan with vk:0) or CPU name.
Decoding speed: speed of the decoding (decode, --check, or the check after encoding) compared to the duration of the content, with the decoder name, or the share of each decoder when several decoders run in parallel.
Example: