пт, 15 дек. 2023 г., 01:21 Terje J. Hanssen via Cin < [email protected]>:
On 12/14/23 18:38, Phyllis Smith via Cin wrote:
On Tue, Dec 12, 2023 at 8:17 AM Andrea paz via Cin < [email protected]> wrote:
I tried to create an encoding profile for av1_vaapi. I attach the preset. It does not work and I get the following error:
[av1_vaapi @ 0x7f8c94163500] A hardware frames reference is required to associate the encoding device. FFMPEG::open_encoder err: Invalid argument
A lot of "muddy waters" when searching this on the internet but the bottom line is for us in looking for what are the current ffmpeg 6.1 supported encoders, key in:
# ./thirdparty/ffmpeg-6.1/ffmpeg -encoders | grep av1 V....D *libaom-av1* libaom AV1 (codec av1) A....D *wmav1 * Windows Media Audio 1
which means the first line of av1_vaapi.webm can only be "webm libaom-av1" which will not provide vaapi; that is the line used in av1.webm.
Hm, I wonder why so few av1 encoders are enabled?
Because additional ones tend to have external dependencies we normally do not carry? Also, at least on aarch64 librav1e was a bit of disappointment, at least on default settings it was SLOW.
In comparison I get this list from Packman's ffmpeg 6.0.1 on Tumbleweed-Slowroll:
fmpeg -encoders -hide_banner | grep av1 V....D libaom-av1 libaom AV1 (codec av1) V....D librav1e librav1e AV1 (codec av1) V..... libsvtav1 SVT-AV1(Scalable Video Technology for AV1) encoder (codec av1) V....D av1_nvenc NVIDIA NVENC av1 encoder (codec av1) V....D av1_amf AMD AMF AV1 encoder (codec av1) A....D wmav1 Windows Media Audio 1
ffmpeg -hwaccels -hide_banner Hardware acceleration methods: vdpau cuda vaapi qsv drm vulkan
Additional references: https://trac.ffmpeg.org/wiki/HWAccelIntro https://trac.ffmpeg.org/wiki/Hardware/VAAPI https://trac.ffmpeg.org/wiki/Hardware/QuickSync https://www.reddit.com/r/AV1/comments/14zwron/guidance_for_av1_hwaccel/
Just to ensure that the " ./thirdparty/ffmpeg-6.1/ffmpeg -encoders | grep your_request" works as expected, keyin:
# ./thirdparty/ffmpeg-6.1/ffmpeg -encoders | grep h264 V....D *libx264* libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (codec h264) V....D *libx264rgb* libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB (codec h264) V....D *h264_nvenc* NVIDIA NVENC H.264 encoder (codec h264) V..... *h264_v4l2m2m * V4L2 mem2mem H.264 encoder wrapper (codec h264) V....D *h264_vaapi* H.264/AVC (VAAPI) (codec h264)
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