https://bugs.kde.org/show_bug.cgi?id=456482
--- Comment #5 from george fb <georgefb...@gmail.com> --- When using auto mpv settles on hevc-vaapi-copy ``` [ 0.226][v][libmpv_render] Loading hwdec driver 'vaapi-egl' [ 0.226][v][libmpv_render/vaapi-egl] VAAPI hwdec only works with OpenGL or Vulkan backends. [ 0.226][v][libmpv_render] Loading failed. [ 0.226][v][libmpv_render] Loading hwdec driver 'cuda-nvdec' [ 0.227][v][libmpv_render/cuda-nvdec] Failed to load CUDA symbols [ 0.227][v][libmpv_render] Loading failed. [ 0.227][v][libmpv_render] Loading hwdec driver 'drmprime-drm' [ 0.227][v][libmpv_render/drmprime-drm] Failed to retrieve DRM fd from native display. [ 0.227][v][libmpv_render] Loading failed. ... [ 3.979][v][vd] Looking at hwdec hevc-nvdec... [ 3.979][v][vd] Could not create device. [ 3.979][v][vd] Looking at hwdec hevc-vaapi... [ 3.979][v][vd] Could not create device. [ 3.979][v][vd] Looking at hwdec hevc-vdpau... [ 3.979][v][vd] Could not create device. [ 3.979][v][vd] Looking at hwdec hevc-nvdec-copy... [ 3.980][e][ffmpeg] AVHWDeviceContext: Cannot load libcuda.so.1 [ 3.980][e][ffmpeg] AVHWDeviceContext: Could not dynamically load CUDA [ 3.980][v][vd] Could not create device. [ 3.980][v][vd] Looking at hwdec hevc-vaapi-copy... [ 3.980][d][vaapi] libva: VA-API version 1.15.0 ``` But when you set `vaapi` it uses software decoding. ``` [ 0.230][v][libmpv_render] Loading hwdec driver 'vaapi-egl' [ 0.230][v][libmpv_render/vaapi-egl] VAAPI hwdec only works with OpenGL or Vulkan backends. [ 0.230][v][libmpv_render] Loading failed. [ 0.230][v][libmpv_render] Loading hwdec driver 'cuda-nvdec' [ 0.230][v][libmpv_render/cuda-nvdec] Failed to load CUDA symbols [ 0.230][v][libmpv_render] Loading failed. [ 0.230][v][libmpv_render] Loading hwdec driver 'drmprime-drm' [ 0.230][v][libmpv_render/drmprime-drm] Failed to retrieve DRM fd from native display. [ 0.230][v][libmpv_render] Loading failed. ... [ 4.016][v][vd] Looking at hwdec hevc-vaapi... [ 4.016][v][vd] Could not create device. [ 4.016][v][vd] No hardware decoding available for this codec. [ 4.016][v][vd] Using software decoding. ``` Why it does this I don't know. The documentation says that vaapi "requires --vo=gpu or --vo=vaapi", but if I set `vo` to anything other than `libmpv` the video plays in in another window or it won't play. Also there are differences between using libmpv and embedding mpv (like smplayer), like this https://github.com/mpv-player/mpv/issues/9417 Try logging mpv and see which hwdec mpv uses for auto and vaapi. -- You are receiving this mail because: You are watching all bug changes.
