[FFmpeg-trac] #11446(undetermined:new): Intermittent Vulkan encoding failures with 4060TI(driver 550), Ubuntu 24.04, Vulkan SDK 1.4.304.0

[FFmpeg]

#11446: Intermittent Vulkan encoding failures with 4060TI(driver 550), Ubuntu
24.04, Vulkan SDK 1.4.304.0
-------------------------------------+-------------------------------------
             Reporter:  Marth64      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Given the following environment
 - Install NVIDIA RTX 4060TI GPU
 - Install Xubuntu 24.04
 - Install nvidia-driver-550 via Ubuntu Additional Drivers widget
 - Install Vulkan SDK 1.4.304.0 via apt (from LunarG)
 - Provide an MPEG-2 source (720x480, 29.9fps) or H264 source (1920x1080,
 40fps) [this is only what I have tested with, but 3 diverse ones]
 - FFmpeg head as of 957eb2323a924aa0b148927889eae581185c367b

 Then run:
 {{{
 ffmpeg -init_hw_device vulkan=vk:0 -y -i "$IN" -filter:v
 "format=nv12,hwupload" -c:v h264_vulkan sample_h264_vulkan.mkv
 }}}

 Observe that the operation will sometimes work but then intermittently
 fail with various error codes.
 I tried to av_err2str() the codes, but only their numeric value is still
 printed as a fallback since they are not known.

 The error codes appear to be random, here are a few:
 -1851303552
 -1776594112
 -1241304448
 -1195352896
 -1474912192
 -1080228480

 {{{
 ffmpeg version N-118406-g957eb2323a Copyright (c) 2000-2025 the FFmpeg
 developers
   built with gcc 13 (Ubuntu 13.3.0-6ubuntu2~24.04)
   configuration: --enable-debug=3 --enable-ffplay --enable-gpl --enable-
 nonfree --enable-ffnvcodec --enable-vulkan --enable-libx264 --enable-
 libfdk_aac --enable-openssl --enable-version3 --enable-demuxer=dvdvideo
 --enable-libdvdread --enable-libdvdnav --samples=fate-suite/
   libavutil      59. 56.100 / 59. 56.100
   libavcodec     61. 32.100 / 61. 32.100
   libavformat    61.  9.106 / 61.  9.106
   libavdevice    61.  4.100 / 61.  4.100
   libavfilter    10.  9.100 / 10.  9.100
   libswscale      8. 13.100 /  8. 13.100
   libswresample   5.  4.100 /  5.  4.100
   libpostproc    58.  4.100 / 58.  4.100
 Input #0, matroska,webm, from 'MyDVD.mkv':
   Metadata:
     ENCODER         : Lavf61.9.106
   Duration: 00:06:00.14, start: 0.000000, bitrate: 7790 kb/s
   Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, smpte170m,
 progressive), 720x480 [SAR 32:27 DAR 16:9], 29.97 fps, 29.97 tbr, 1k tbn
     Metadata:
       DURATION        : 00:06:00.143000000
     Side data:
       cpb: bitrate max/min/avg: 9800000/0/0 buffer size: 1835008
 vbv_delay: N/A
   Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
     Metadata:
       DURATION        : 00:06:00.006000000
 Stream mapping:
   Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (h264_vulkan))
   Stream #0:1 -> #0:1 (ac3 (native) -> ac3 (native))
 Press [q] to stop, [?] for help
 [h264_vulkan @ 0x64d194ac7540] No rate control settings specified, using
 fixed QP = 18
 Output #0, matroska, to 'sample_h264_vulkan.mkv':
   Metadata:
     encoder         : Lavf61.9.106
   Stream #0:0: Video: h264 (High) (H264 / 0x34363248), vulkan(tv,
 smpte170m, progressive), 720x480 [SAR 32:27 DAR 16:9], q=2-31, 29.97 fps,
 1k tbn
     Metadata:
       encoder         : Lavc61.32.100 h264_vulkan
       DURATION        : 00:06:00.143000000
   Stream #0:1(eng): Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side),
 fltp, 448 kb/s
     Metadata:
       encoder         : Lavc61.32.100 ac3
       DURATION        : 00:06:00.006000000
 [h264_vulkan @ 0x64d194ac7540] Encode failed: -1851303552.
 [vost#0:0/h264_vulkan @ 0x64d191a6a380] [enc:h264_vulkan @ 0x64d1918e0e00]
 Error submitting video frame to the encoder
 [vost#0:0/h264_vulkan @ 0x64d191a6a380] [enc:h264_vulkan @ 0x64d1918e0e00]
 Error encoding a frame: Error number -1851303552 occurred
 [vost#0:0/h264_vulkan @ 0x64d191a6a380] Task finished with error code:
 -1851303552 (Error number -1851303552 occurred)
 [vost#0:0/h264_vulkan @ 0x64d191a6a380] Terminating thread with return
 code -1851303552 (Error number -1851303552 occurred)
 [out#0/matroska @ 0x64d191a68840] video:0KiB audio:51KiB subtitle:0KiB
 other streams:0KiB global headers:0KiB muxing overhead: 1.939655%
 frame=    0 fps=0.0 q=0.0 Lsize=      52KiB time=N/A bitrate=N/A speed=N/A
 Conversion failed!
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11446>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker