From: Araz <primeadvice@gmail.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH] avcodec/amfenc: add smart access video option
Date: Tue, 11 Mar 2025 22:37:11 +0100
Message-ID: <CAGT-SYWOMo4oq2JxsUEVUuqzxknd+f8+W+i=utih2MgfPLR4uA@mail.gmail.com> (raw)
In-Reply-To: <tencent_0492AF7A387DC011B6E46812017D68427F0A@qq.com>
> It’s almost impossible to get what does this option do for user with good
> background on video encoding.
> Please add some comments here.
>
Yes, as Dennis Mungai said, this feature allows to use both APU and GPU
for decoding/encoding in a single pipeline.
It is supported on AMD Radeon CPU 5000 series and higher and RX 6000
series and higher graphics cards.
The average transcoding speed improves up to 30%.
This patch is tested on AMD Ryzen 5 7600X + AMD GPU RX6700XT.
To enable this feature, you need to select the hwaccel AMF input
and output as in the example below:
ffmpeg.exe -hwaccel amf -hwaccel_output_format amf -extra_hw_frames 33
-i input.mp4 -c:v hevc_amf -smart_access_video 1 -y output.mp4
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prev parent reply other threads:[~2025-03-11 21:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-11 14:48 Araz Iusubov
2025-03-11 16:23 ` Zhao Zhili
2025-03-11 16:44 ` Dennis Mungai
2025-03-11 21:37 ` Araz [this message]
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