пт, 15 дек. 2023 г., 02:18 Phyllis Smith <[email protected]>:
> >>> # ./thirdparty/ffmpeg-6.1/ffmpeg -encoders | grep av1 >>> V....D *libaom-av1* libaom AV1 (codec av1) >>> A....D *wmav1 * Windows Media Audio 1 >>> >>> >>> 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 addition to what Andrew reported, when building FFmpeg, you have to > specifically *enable libsvtav1* which has not been done, but could be if > someone tests that and finds it useful. > > But what is actually more interesting is that there is still no vaapi_av1 > which is what Andrea was trying to get working (just to find out that his > hardware would not support anyway). There may be some other trick to that > too since it certainly seems to exist as a codec in this file: > ./cinelerra-5.1/thirdparty/ffmpeg-6.1/libavcodec/allcodecs.c > may be libva should be new enough? And/or oneVPL framework ... >> >>> 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 >>> >>> >>>
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