On 2025-09-06 04:35, Carlos E. R. via ffmpeg-user wrote:
On 2025-09-06 00:34, Ferdi Scholten via ffmpeg-user wrote:
Both the original video codec (HEVC) as the codec you choose for transcoding (mpeg4) are unsupported by your hardware. And because your hardware is not very powerful, you have bad performance. At least choose a codec that has hardware support and on your hardware, the only valid choice is H264 which is the only codec having hardware support for both encoding and decoding on your hardware.
I don't know if it has any importance, but I am doing the encoding on a powerful AMD computer. The files are normally shared via NFS, but I have also tried copying them to the laptop.
--
Cheers / Saludos,
Carlos E. R.
(from 15.6 x86_64 at Telcontar)
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