Hi,
I try to test Vulkan h264 or h265 decoding according to test command at
https://trac.ffmpeg.org/wiki/HWAccelIntro#Vulkan
ffmpeg -init_hw_device "vulkan=vk:0" -hwaccel vulkan
-hwaccel_output_format vulkan -i INPUT -f null - -benchmark
but get the following output error:
[h264 @ 0x55952760cf40] Failed setup for format vulkan: hwaccel
initialisation returned error.
or
[hevc @ 0x5580e96e8c80] Failed setup for format vulkan: hwaccel
initialisation returned error.
Any suggestion how to solve it?
------------------------------
vulkaninfo | grep GPU
GPU id = 0 (Intel(R) Arc(tm) A750 Graphics (DG2))
GPU id = 1 (llvmpipe (LLVM 18.1.8, 256 bits))
GPU id = 0 (Intel(R) Arc(tm) A750 Graphics (DG2))
GPU id = 1 (llvmpipe (LLVM 18.1.8, 256 bits))
GPU id = 0 (Intel(R) Arc(tm) A750 Graphics (DG2))
GPU id = 1 (llvmpipe (LLVM 18.1.8, 256 bits))
GPU id : 0 (Intel(R) Arc(tm) A750 Graphics (DG2)):
GPU id : 1 (llvmpipe (LLVM 18.1.8, 256 bits)):
GPU0:
deviceType = PHYSICAL_DEVICE_TYPE_DISCRETE_GPU
GPU1:
export ANV_VIDEO_DECODE=1
vulkaninfo | grep VK_KHR_video
VK_KHR_video_decode_h264 : extension revision 9
VK_KHR_video_decode_h265 : extension revision 8
VK_KHR_video_decode_queue : extension revision 8
VK_KHR_video_queue : extension revision 8
MESA_VK_DEVICE_SELECT=list vulkaninfo
selectable devices:
GPU 0: 8086:56a1 "Intel(R) Arc(tm) A750 Graphics (DG2)" discrete GPU
0000:03:00.0
GPU 1: 10005:0 "llvmpipe (LLVM 18.1.8, 256 bits)" CPU 0000:00:00.0
This is on openSUSE Tumbleweed-Slowroll with ffmpeg-7.0, Intel, Vulkan,
Mesa drivers etc.
Full ffmpeg sample output as follows:
ffmpeg -hide_banner -init_hw_device "vulkan=vk:0" -hwaccel vulkan
-hwaccel_output_format vulkan -i h264_10bit_yuv422p10le.mp4 -f null -
-benchmark
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'h264_10bit_yuv422p10le.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf61.1.100
Duration: 00:01:11.20, start: 0.000000, bitrate: 9366 kb/s
Stream #0:0[0x1](und): Video: h264 (High 4:2:2) (avc1 / 0x31637661),
yuv422p10le(pc, smpte170m/unknown/unknown, top first), 1920x1080 [SAR
1:1 DAR 16:9], 9364 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
Metadata:
handler_name : VideoHandler
vendor_id : [0][0][0][0]
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native))
Press [q] to stop, [?] for help
[h264 @ 0x55952760cf40] Failed setup for format vulkan: hwaccel
initialisation returned error.
Output #0, null, to 'pipe:':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf61.1.100
Stream #0:0(und): Video: wrapped_avframe, yuv422p10le(pc,
smpte170m/unknown/unknown, top coded first (swapped)), 1920x1080 [SAR
1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn (default)
Metadata:
handler_name : VideoHandler
vendor_id : [0][0][0][0]
encoder : Lavc61.3.100 wrapped_avframe
[out#0/null @ 0x5595275c8f40] video:765KiB audio:0KiB subtitle:0KiB
other streams:0KiB global headers:0KiB muxing overhead: unknown
frame= 1780 fps=767 q=-0.0 Lsize=N/A time=00:01:11.20 bitrate=N/A
speed=30.7x
bench: utime=20.985s stime=0.185s rtime=2.319s
bench: maxrss=391544KiB
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