#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
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