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minCodedExtent from the Vulkan
driver before opening the ffmpeg decode pipe. Input frames smaller than
the hardware minimum (e.g. 170×196 vs driver minimum 320×128) are
automatically scaled up to the minimum supported resolution.av1r_vulkan_query_min_extent(): the
VkVideoEncodeAV1CapabilitiesKHR structure was missing from
the pNext chain passed to
vkGetPhysicalDeviceVideoCapabilitiesKHR, causing RADV to
write to an unmapped address.crf * 4) to
nonlinear LUT approximating aomenc --cq-level. Linear
mapping gave qIndex 112 at CRF 28 which was too low for real compression
on RADV. The new mapping gives qIndex 175 at CRF 28, matching expected
AV1 compression ratios.constantQIndex is the only working
path.VK_KHR_VIDEO_ENCODE_AV1.VK_ERROR_DEVICE_LOST on GPUs where the encode queue has no
TRANSFER capability.vkCmdCopyBufferToImage calls with proper
bufferRowLength for each plane.vkGetEncodedVideoSessionParametersKHR — output plays in all
players.constantQIndex
derived from CRF (qIndex = crf * 4). VBR/CBR modes are
reported as supported by RADV but have no effect; CQP is the only
working mode.vkGetInstanceProcAddr/vkGetDeviceProcAddr for
compatibility with SDK < 1.3.290.magick package before encoding. Both GPU and CPU
paths support this.magick added to Suggests (required only
for multi-page TIFF input).frame%06d.png)
are passed to ffmpeg with -framerate for correct
decoding.\dontrun{} with \donttest{} in
all examples.tempdir() instead of user’s home
filespace.VK_KHR_video_encode_av1 headers
(src/vk_video/) — package no longer requires Vulkan SDK
>= 1.3.290 at build time; builds against any Vulkan SDK >= 1.3.275
with the bundled polyfill.configure now detects bundled AV1 encode headers and
enables GPU path automatically.libsvtav1 /
libaom-av1).convert_to_av1() for single-file and batch
conversion.detect_backend(), vulkan_available(),
vulkan_devices() for diagnostics.These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.