I try to watch a video using FFmpeg with Vulkan decoding and the process hangs indefinitely:
ffmpeg -init_hw_device vulkan -hwaccel vulkan -hwaccel_output_format vulkan -i INPUT_VIDEO -f null - -benchmark
ffmpeg version n7.1.1 Copyright (c) 2000-2025 the FFmpeg developers
built with gcc 15.1.1 (GCC) 20250425
configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libdvdnav --enable-libdvdread --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan
libavutil 59. 39.100 / 59. 39.100
libavcodec 61. 19.101 / 61. 19.101
libavformat 61. 7.100 / 61. 7.100
libavdevice 61. 3.100 / 61. 3.100
libavfilter 10. 4.100 / 10. 4.100
libswscale 8. 3.100 / 8. 3.100
libswresample 5. 3.100 / 5. 3.100
libpostproc 58. 3.100 / 58. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'INPUT_VIDEO':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf61.7.100
Duration: 00:00:41.41, start: 0.000000, bitrate: 1092 kb/s
Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 946x720, 956 kb/s, SAR 1:1 DAR 473:360, 30 fps, 30 tbr, 9000k tbn (default)
Metadata:
handler_name : Twitter-vork muxer
vendor_id : [0][0][0][0]
Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : Twitter-vork muxer
vendor_id : [0][0][0][0]
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native))
Stream #0:1 -> #0:1 (aac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de28bf6c0] get_buffer() failed
[h264 @ 0x558de28bf6c0] thread_get_buffer() failed
[h264 @ 0x558de28bf6c0] decode_slice_header error
[h264 @ 0x558de28bf6c0] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de28d0f80] get_buffer() failed
[h264 @ 0x558de28d0f80] thread_get_buffer() failed
[h264 @ 0x558de28d0f80] decode_slice_header error
[h264 @ 0x558de28d0f80] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de28e2a40] get_buffer() failed
[h264 @ 0x558de28e2a40] thread_get_buffer() failed
[h264 @ 0x558de28e2a40] decode_slice_header error
[h264 @ 0x558de28e2a40] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de28f4500] get_buffer() failed
[h264 @ 0x558de28f4500] thread_get_buffer() failed
[h264 @ 0x558de28f4500] decode_slice_header error
[h264 @ 0x558de28f4500] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de2905fc0] get_buffer() failed
[h264 @ 0x558de2905fc0] thread_get_buffer() failed
[h264 @ 0x558de2905fc0] decode_slice_header error
[h264 @ 0x558de2905fc0] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de27195c0] get_buffer() failed
[h264 @ 0x558de27195c0] thread_get_buffer() failed
[h264 @ 0x558de27195c0] decode_slice_header error
[h264 @ 0x558de27195c0] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de272af40] get_buffer() failed
[h264 @ 0x558de272af40] thread_get_buffer() failed
[h264 @ 0x558de272af40] decode_slice_header error
[h264 @ 0x558de272af40] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de273ca00] get_buffer() failed
[h264 @ 0x558de273ca00] thread_get_buffer() failed
[h264 @ 0x558de273ca00] decode_slice_header error
[h264 @ 0x558de273ca00] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de2941740] get_buffer() failed
[h264 @ 0x558de2941740] thread_get_buffer() failed
[h264 @ 0x558de2941740] decode_slice_header error
[h264 @ 0x558de2941740] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de2548440] get_buffer() failed
[h264 @ 0x558de2548440] thread_get_buffer() failed
[h264 @ 0x558de2548440] decode_slice_header error
[h264 @ 0x558de2548440] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
Output #0, null, to 'pipe:':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf61.7.100
Stream #0:0(und): Video: wrapped_avframe, vulkan(progressive), 946x720 [SAR 1:1 DAR 473:360], q=2-31, 200 kb/s, 30 fps, 30 tbn (default)
Metadata:
handler_name : Twitter-vork muxer
vendor_id : [0][0][0][0]
encoder : Lavc61.19.101 wrapped_avframe
[h264 @ 0x558de253e840] get_buffer() failed
[h264 @ 0x558de253e840] thread_get_buffer() failed
[h264 @ 0x558de253e840] decode_slice_header error
[h264 @ 0x558de253e840] no frame!
Stream #0:1(und): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s (default)
Metadata:
handler_name : Twitter-vork muxer
vendor_id : [0][0][0][0]
encoder : Lavc61.19.101 pcm_s16le
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de26cf540] get_buffer() failed
[h264 @ 0x558de26cf540] thread_get_buffer() failed
[h264 @ 0x558de26cf540] decode_slice_header error
[h264 @ 0x558de26cf540] no frame!
Unable to submit command buffer: VK_ERROR_DEVICE_LOST
[h264 @ 0x558de292e5c0] get_buffer() failed
[h264 @ 0x558de292e5c0] thread_get_buffer() failed
[h264 @ 0x558de292e5c0] decode_slice_header error
[h264 @ 0x558de292e5c0] no frame!
The program seems to recognize the video card:
ffmpeg -v verbose -init_hw_device vulkan
ffmpeg version n7.1.1 Copyright (c) 2000-2025 the FFmpeg developers
built with gcc 15.1.1 (GCC) 20250425
configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libdvdnav --enable-libdvdread --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan
libavutil 59. 39.100 / 59. 39.100
libavcodec 61. 19.101 / 61. 19.101
libavformat 61. 7.100 / 61. 7.100
libavdevice 61. 3.100 / 61. 3.100
libavfilter 10. 4.100 / 10. 4.100
libswscale 8. 3.100 / 8. 3.100
libswresample 5. 3.100 / 5. 3.100
libpostproc 58. 3.100 / 58. 3.100
[AVHWDeviceContext @ 0x5613b95d0400] Supported layers:
[AVHWDeviceContext @ 0x5613b95d0400] VK_LAYER_VALVE_steam_overlay_32
[AVHWDeviceContext @ 0x5613b95d0400] VK_LAYER_VALVE_steam_overlay_64
[AVHWDeviceContext @ 0x5613b95d0400] VK_LAYER_VALVE_steam_fossilize_32
[AVHWDeviceContext @ 0x5613b95d0400] VK_LAYER_VALVE_steam_fossilize_64
[AVHWDeviceContext @ 0x5613b95d0400] VK_LAYER_FROG_gamescope_wsi_x86_64
[AVHWDeviceContext @ 0x5613b95d0400] VK_LAYER_NV_optimus
[AVHWDeviceContext @ 0x5613b95d0400] VK_LAYER_NV_present
[AVHWDeviceContext @ 0x5613b95d0400] Using instance extension VK_KHR_portability_enumeration
[AVHWDeviceContext @ 0x5613b95d0400] GPU listing:
[AVHWDeviceContext @ 0x5613b95d0400] 0: NVIDIA GeForce RTX 5060 Ti (discrete) (0x2d04)
[AVHWDeviceContext @ 0x5613b95d0400] Device 0 selected: NVIDIA GeForce RTX 5060 Ti (discrete) (0x2d04)
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_push_descriptor
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_EXT_descriptor_buffer
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_EXT_physical_device_drm
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_EXT_shader_atomic_float
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_cooperative_matrix
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_NV_optical_flow
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_EXT_shader_object
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_video_maintenance1
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_external_memory_fd
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_EXT_external_memory_dma_buf
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_EXT_image_drm_format_modifier
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_external_semaphore_fd
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_EXT_external_memory_host
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_video_queue
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_video_encode_queue
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_video_decode_queue
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_video_encode_h264
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_video_decode_h264
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_video_encode_h265
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_video_decode_h265
[AVHWDeviceContext @ 0x5613b95d0400] Using device extension VK_KHR_video_decode_av1
[AVHWDeviceContext @ 0x5613b95d0400] Queue families:
[AVHWDeviceContext @ 0x5613b95d0400] 0: graphics compute transfer sparse (queues: 16)
[AVHWDeviceContext @ 0x5613b95d0400] 1: transfer sparse (queues: 2)
[AVHWDeviceContext @ 0x5613b95d0400] 2: compute transfer sparse (queues: 8)
[AVHWDeviceContext @ 0x5613b95d0400] 3: transfer decode sparse (queues: 1)
[AVHWDeviceContext @ 0x5613b95d0400] 4: transfer encode sparse (queues: 1)
[AVHWDeviceContext @ 0x5613b95d0400] 5: transfer sparse optical_flow (queues: 1)
[AVHWDeviceContext @ 0x5613b95d0400] Using device: NVIDIA GeForce RTX 5060 Ti
[AVHWDeviceContext @ 0x5613b95d0400] Alignments:
[AVHWDeviceContext @ 0x5613b95d0400] optimalBufferCopyRowPitchAlignment: 1
[AVHWDeviceContext @ 0x5613b95d0400] minMemoryMapAlignment: 64
[AVHWDeviceContext @ 0x5613b95d0400] nonCoherentAtomSize: 64
[AVHWDeviceContext @ 0x5613b95d0400] minImportedHostPointerAlignment: 4096
[AVHWDeviceContext @ 0x5613b95d0400] Using queue family 0 (queues: 16) for graphics
[AVHWDeviceContext @ 0x5613b95d0400] Using queue family 2 (queues: 8) for compute
[AVHWDeviceContext @ 0x5613b95d0400] Using queue family 1 (queues: 2) for transfers
[AVHWDeviceContext @ 0x5613b95d0400] Using queue family 3 (queues: 1) for decode
[AVHWDeviceContext @ 0x5613b95d0400] Using queue family 4 (queues: 1) for encode
Universal media converter
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
Use -h to get full help or, even better, run 'man ffmpeg'
Am I doing something wrong or is this a genuine bug?