Date: Fri, 1 Mar 2019 11:02:32 +0100 From: Thomas Zander <thomas.e.zander@googlemail.com> To: driesm.michiels@gmail.com Cc: freebsd-multimedia@freebsd.org Subject: Re: FFmpeg hardware transcoding Message-ID: <CAFU734yK2CsD52gRJeQ9W2oh5rxEKrjWsbJ0-PBWKYUP2GiaOQ@mail.gmail.com> In-Reply-To: <005401d4c957$c6bbc840$543358c0$@gmail.com> References: <005401d4c957$c6bbc840$543358c0$@gmail.com>
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On Wed, 20 Feb 2019 at 21:07, <driesm.michiels@gmail.com> wrote: > What is the minimum requirements for being able to utilize quick sync on my > intel chip for ffmpeg hardware transcoding? One point to consider is the desired output quality. I recently ran some transcoding experiments on a MacBook (2018 Model, i5 CPU) using ffmpeg and the "hevc_videotoolbox" encoder which uses quick sync on this platform. The results were consistently unacceptable. x265 software encoding delivers better results for all scenarios I have tried, even with preset fast. After the results I have had, I see no further use for quick sync other than real-time encoding (e.g. streaming). Riggs
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