2026-02-11, 11:01 PM
Hey all,
I've been hosting a jellyfin server via docker on a GMTEK mini-pc which runs an Intel N150® CPU with onboard iGPU. Looking for some help/advice from more experienced people.
Recently I've had a few more people using the server and requesting more media via jellyseerr which requires transcoding so I've enabled hardware acceleration and currently it seems to be working with QSV for normal streams (with the CPU usage sitting at a couple %). I've verified the hw acceleration is working via jellyfin logs and also using intel_gpu_top on the mini-pc which shows gpu usage (attached). Logs below:
My issue is that when I run even just a single transcoded file (even on the same network), CPU usage skyrockets to using the max amount of available CPU threads (4 available) and then even one additional stream basically forces the mini-pc to crash/become unconnectable for a while.
Everything I've read about an N100/N150 with hw acceleration is that it should be able to support multiple transcodes and the overall cpu usage should be drastically layer over software transcoding. This just doesn't seem the case and I'm not sure why. I've attached my decode settings and can share whatever else would be useful.
Any help you can provide would be amazing
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Dolby Digital\u002B - 5.1 - Default","NalLengthSize":null,"IsInterlaced":false,"IsAVC":false,"ChannelLayout":"5.1","BitRate":640000,"BitDepth":null,"RefFrames":null,"PacketLength":null,"Channels":6,"SampleRate":48000,"IsDefault":true,"IsForced":false,"IsHearingImpaired":false,"Height":null,"Width":null,"AverageFrameRate":null,"RealFrameRate":null,"ReferenceFrameRate":null,"Profile":null,"Type":0,"AspectRatio":null,"Index":1,"Score":null,"IsExternal":false,"DeliveryMethod":null,"DeliveryUrl":null,"IsExternalUrl":null,"IsTextSubtitleStream":false,"SupportsExternalStream":false,"Path":null,"PixelFormat":null,"Level":0,"IsAnamorphic":null},{"Codec":"subrip","CodecTag":null,"Language":"eng","ColorRange":null,"ColorSpace":null,"ColorTransfer":null,"ColorPrimaries":null,"DvVersionMajor":null,"DvVersionMinor":null,"DvProfile":null,"DvLevel":null,"RpuPresentFlag":null,"ElPresentFlag":null,"BlPresentFlag":null,"DvBlSignalCompatibilityId":null,"Rotation":null,"Comment":null,"TimeBase":"1/1000","CodecTimeBase":null,"Title":"Forced","Hdr10PlusPresentFlag":null,"VideoRange":0,"VideoRangeType":0,"VideoDoViTitle":null,"AudioSpatialFormat":0,"LocalizedUndefined":"Undefined","LocalizedDefault":"Default","LocalizedForced":"Forced","LocalizedExternal":"External","LocalizedHearingImpaired":"Hearing Impaired","DisplayTitle":"Forced - English - Default - SUBRIP","NalLengthSize":null,"IsInterlaced":false,"IsAVC":false,"ChannelLayout":null,"BitRate":null,"BitDepth":null,"RefFrames":null,"PacketLength":null,"Channels":null,"SampleRate":null,"IsDefault":true,"IsForced":true,"IsHearingImpaired":false,"Height":0,"Width":0,"AverageFrameRate":null,"RealFrameRate":null,"ReferenceFrameRate":null,"Profile":null,"Type":2,"AspectRatio":null,"Index":2,"Score":null,"IsExternal":false,"DeliveryMethod":null,"DeliveryUrl":null,"IsExternalUrl":null,"IsTextSubtitleStream":true,"SupportsExternalStream":true,"Path":null,"PixelFormat":null,"Level":0,"IsAnamorphic":null},{"Codec":"subrip","CodecTag":null,"Language":"eng","ColorRange":null,"ColorSpace":null,"ColorTransfer":null,"ColorPrimaries":null,"DvVersionMajor":null,"DvVersionMinor":null,"DvProfile":null,"DvLevel":null,"RpuPresentFlag":null,"ElPresentFlag":null,"BlPresentFlag":null,"DvBlSignalCompatibilityId":null,"Rotation":null,"Comment":null,"TimeBase":"1/1000","CodecTimeBase":null,"Title":null,"Hdr10PlusPresentFlag":null,"VideoRange":0,"VideoRangeType":0,"VideoDoViTitle":null,"AudioSpatialFormat":0,"LocalizedUndefined":"Undefined","LocalizedDefault":"Default","LocalizedForced":"Forced","LocalizedExternal":"External","LocalizedHearingImpaired":"Hearing Impaired","DisplayTitle":"English - SUBRIP","NalLengthSize":null,"IsInterlaced":false,"IsAVC":false,"ChannelLayout":null,"BitRate":null,"BitDepth":null,"RefFrames":null,"PacketLength":null,"Channels":null,"SampleRate":null,"IsDefault":false,"IsForced":false,"IsHearingImpaired":false,"Height":0,"Width":0,"AverageFrameRate":null,"RealFrameRate":null,"ReferenceFrameRate":null,"Profile":null,"Type":2,"AspectRatio":null,"Index":3,"Score":null,"IsExternal":false,"DeliveryMethod":null,"DeliveryUrl":null,"IsExternalUrl":null,"IsTextSubtitleStream":true,"SupportsExternalStream":true,"Path":null,"PixelFormat":null,"Level":0,"IsAnamorphic":null}],"MediaAttachments":[],"Formats":[],"Bitrate":11020409,"FallbackMaxStreamingBitrate":null,"Timestamp":null,"RequiredHttpHeaders":{},"TranscodingUrl":null,"TranscodingSubProtocol":0,"TranscodingContainer":null,"AnalyzeDurationMs":null,"DefaultAudioStreamIndex":null,"DefaultSubtitleStreamIndex":null,"HasSegments":true}
/usr/lib/jellyfin-ffmpeg/ffmpeg -analyzeduration 200M -probesize 1G -f matroska -init_hw_device vaapi=va
dev/dri/renderD128,driver=iHD -init_hw_device qsv=qs@va -filter_hw_device qs -hwaccel qsv -hwaccel_output_format qsv -noautorotate -c:v h264_qsv -i file:"/data/media/tv/Pantheon (2022)/Pantheon.S02E01.The.Gods.Have.Not.Died.in.Vain.1080p.AMZN.WEB-DL.DDP5.1.H.264-NTb.mkv" -noautoscale -map_metadata -1 -map_chapters -1 -threads 3 -map 0:0 -map 0:1 -map -0:s -codec:v:0 h264_qsv -preset fast -mbbrc 1 -b:v 292000 -maxrate 292001 -rc_init_occupancy 584000 -bufsize 1168000 -profile:v:0 high -level 40 -g:v:0 72 -keyint_min:v:0 72 -vf "setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709,vpp_qsv=w=960:h=540:format=nv12" -codec:a:0 libfdk_aac -ab 128000 -af "pan=stereo|c0=c2+0.30*c0+0.30*c4|c1=c2+0.30*c1+0.30*c5" -copyts -avoid_negative_ts disabled -max_muxing_queue_size 2048 -f hls -max_delay 5000000 -hls_time 3 -hls_segment_type fmp4 -hls_fmp4_init_filename "987062323c7407b7496a83cb7db6426f-1.mp4" -start_number 0 -hls_segment_filename "/cache/transcodes/987062323c7407b7496a83cb7db6426f%d.mp4" -hls_playlist_type vod -hls_list_size 0 -hls_segment_options movflags=+frag_discont -y "/cache/transcodes/987062323c7407b7496a83cb7db6426f.m3u8"
ffmpeg version 7.1.3-Jellyfin Copyright © 2000-2025 the FFmpeg developers
built with gcc 14 (Debian 14.2.0-19)
configuration: --prefix=/usr/lib/jellyfin-ffmpeg --target-os=linux --extra-version=Jellyfin --disable-doc --disable-ffplay --disable-static --disable-libxcb --disable-sdl2 --disable-xlib --enable-lto=auto --enable-gpl --enable-version3 --enable-shared --enable-gmp --enable-gnutls --enable-chromaprint --enable-opencl --enable-libdrm --enable-libxml2 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libfontconfig --enable-libharfbuzz --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libopenmpt --enable-libdav1d --enable-libsvtav1 --enable-libwebp --enable-libvpx --enable-libx264 --enable-libx265 --enable-libzvbi --enable-libzimg --enable-libfdk-aac --arch=amd64 --enable-libshaderc --enable-libplacebo --enable-vulkan --enable-vaapi --enable-amf --enable-libvpl --enable-ffnvcodec --enable-cuda --enable-cuda-llvm --enable-cuvid --enable-nvdec --enable-nvenc
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
libva info: VA-API version 1.22.0
libva info: Trying to open /usr/lib/jellyfin-ffmpeg/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_22
libva info: va_openDriver() returns 0
libva info: VA-API version 1.22.0
libva info: Trying to open /usr/lib/jellyfin-ffmpeg/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_22
libva info: va_openDriver() returns 0
Input #0, matroska,webm, from 'filedata/media/tv/Pantheon (2022)/Pantheon.S02E01.The.Gods.Have.Not.Died.in.Vain.1080p.AMZN.WEB-DL.DDP5.1.H.264-NTb.mkv':
Metadata:
encoder : libebml v1.4.4 + libmatroska v1.7.1
Duration: 00:42:02.25, start: 0.000000, bitrate: 10380 kb/s
Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 24 fps, 24 tbr, 1k tbn (default)
Metadata:
BPS : 9738236
DURATION : 00:42:02.250000000
NUMBER_OF_FRAMES: 60534
NUMBER_OF_BYTES : 3070283421
_STATISTICS_WRITING_APP: mkvmerge v79.0 ('Funeral Pyres') 64-bit
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:1(eng): Audio: eac3, 48000 Hz, 5.1(side), fltp, 640 kb/s (default)
Metadata:
BPS : 640000
DURATION : 00:42:02.240000000
NUMBER_OF_FRAMES: 78820
NUMBER_OF_BYTES : 201779200
_STATISTICS_WRITING_APP: mkvmerge v79.0 ('Funeral Pyres') 64-bit
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:2(eng): Subtitle: subrip (srt) (default) (forced)
Metadata:
title : Forced
BPS : 11
DURATION : 00:00:04.171000000
NUMBER_OF_FRAMES: 1
NUMBER_OF_BYTES : 6
_STATISTICS_WRITING_APP: mkvmerge v79.0 ('Funeral Pyres') 64-bit
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:3(eng): Subtitle: subrip (srt)
Metadata:
BPS : 71
DURATION : 00:40:58.915000000
NUMBER_OF_FRAMES: 581
NUMBER_OF_BYTES : 22118
_STATISTICS_WRITING_APP: mkvmerge v79.0 ('Funeral Pyres') 64-bit
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream mapping:
Stream #0:0 -> #0:0 (h264 (h264_qsv) -> h264 (h264_qsv))
Stream #0:1 -> #0:1 (eac3 (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
[hls @ 0x77e22fac7580] Opening '/cache/transcodes/987062323c7407b7496a83cb7db6426f-1.mp4' for writing
Output #0, hls, to '/cache/transcodes/987062323c7407b7496a83cb7db6426f.m3u8':
Metadata:
encoder : Lavf61.7.100
Stream #0:0: Video: h264, qsv(tv, bt709, progressive), 960x540 [SAR 1:1 DAR 16:9], q=2-31, 292 kb/s, 24 fps, 12288 tbn (default)
Metadata:
encoder : Lavc61.19.101 h264_qsv
Side data:
cpb: bitrate max/min/avg: 292001/0/292000 buffer size: 1168000 vbv_delay: N/A
Stream #0:1: Audio: aac, 48000 Hz, stereo, s16, 128 kb/s (default)
Metadata:
encoder : Lavc61.19.101 libfdk_aac
Side data:
cpb: bitrate max/min/avg: 128000/128000/128000 buffer size: 0 vbv_delay: N/A
I've been hosting a jellyfin server via docker on a GMTEK mini-pc which runs an Intel N150® CPU with onboard iGPU. Looking for some help/advice from more experienced people.
Recently I've had a few more people using the server and requesting more media via jellyseerr which requires transcoding so I've enabled hardware acceleration and currently it seems to be working with QSV for normal streams (with the CPU usage sitting at a couple %). I've verified the hw acceleration is working via jellyfin logs and also using intel_gpu_top on the mini-pc which shows gpu usage (attached). Logs below:
My issue is that when I run even just a single transcoded file (even on the same network), CPU usage skyrockets to using the max amount of available CPU threads (4 available) and then even one additional stream basically forces the mini-pc to crash/become unconnectable for a while.
Everything I've read about an N100/N150 with hw acceleration is that it should be able to support multiple transcodes and the overall cpu usage should be drastically layer over software transcoding. This just doesn't seem the case and I'm not sure why. I've attached my decode settings and can share whatever else would be useful.
Any help you can provide would be amazing
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/usr/lib/jellyfin-ffmpeg/ffmpeg -analyzeduration 200M -probesize 1G -f matroska -init_hw_device vaapi=va
dev/dri/renderD128,driver=iHD -init_hw_device qsv=qs@va -filter_hw_device qs -hwaccel qsv -hwaccel_output_format qsv -noautorotate -c:v h264_qsv -i file:"/data/media/tv/Pantheon (2022)/Pantheon.S02E01.The.Gods.Have.Not.Died.in.Vain.1080p.AMZN.WEB-DL.DDP5.1.H.264-NTb.mkv" -noautoscale -map_metadata -1 -map_chapters -1 -threads 3 -map 0:0 -map 0:1 -map -0:s -codec:v:0 h264_qsv -preset fast -mbbrc 1 -b:v 292000 -maxrate 292001 -rc_init_occupancy 584000 -bufsize 1168000 -profile:v:0 high -level 40 -g:v:0 72 -keyint_min:v:0 72 -vf "setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709,vpp_qsv=w=960:h=540:format=nv12" -codec:a:0 libfdk_aac -ab 128000 -af "pan=stereo|c0=c2+0.30*c0+0.30*c4|c1=c2+0.30*c1+0.30*c5" -copyts -avoid_negative_ts disabled -max_muxing_queue_size 2048 -f hls -max_delay 5000000 -hls_time 3 -hls_segment_type fmp4 -hls_fmp4_init_filename "987062323c7407b7496a83cb7db6426f-1.mp4" -start_number 0 -hls_segment_filename "/cache/transcodes/987062323c7407b7496a83cb7db6426f%d.mp4" -hls_playlist_type vod -hls_list_size 0 -hls_segment_options movflags=+frag_discont -y "/cache/transcodes/987062323c7407b7496a83cb7db6426f.m3u8"ffmpeg version 7.1.3-Jellyfin Copyright © 2000-2025 the FFmpeg developers
built with gcc 14 (Debian 14.2.0-19)
configuration: --prefix=/usr/lib/jellyfin-ffmpeg --target-os=linux --extra-version=Jellyfin --disable-doc --disable-ffplay --disable-static --disable-libxcb --disable-sdl2 --disable-xlib --enable-lto=auto --enable-gpl --enable-version3 --enable-shared --enable-gmp --enable-gnutls --enable-chromaprint --enable-opencl --enable-libdrm --enable-libxml2 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libfontconfig --enable-libharfbuzz --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libopenmpt --enable-libdav1d --enable-libsvtav1 --enable-libwebp --enable-libvpx --enable-libx264 --enable-libx265 --enable-libzvbi --enable-libzimg --enable-libfdk-aac --arch=amd64 --enable-libshaderc --enable-libplacebo --enable-vulkan --enable-vaapi --enable-amf --enable-libvpl --enable-ffnvcodec --enable-cuda --enable-cuda-llvm --enable-cuvid --enable-nvdec --enable-nvenc
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
libva info: VA-API version 1.22.0
libva info: Trying to open /usr/lib/jellyfin-ffmpeg/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_22
libva info: va_openDriver() returns 0
libva info: VA-API version 1.22.0
libva info: Trying to open /usr/lib/jellyfin-ffmpeg/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_22
libva info: va_openDriver() returns 0
Input #0, matroska,webm, from 'file
data/media/tv/Pantheon (2022)/Pantheon.S02E01.The.Gods.Have.Not.Died.in.Vain.1080p.AMZN.WEB-DL.DDP5.1.H.264-NTb.mkv':Metadata:
encoder : libebml v1.4.4 + libmatroska v1.7.1
Duration: 00:42:02.25, start: 0.000000, bitrate: 10380 kb/s
Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 24 fps, 24 tbr, 1k tbn (default)
Metadata:
BPS : 9738236
DURATION : 00:42:02.250000000
NUMBER_OF_FRAMES: 60534
NUMBER_OF_BYTES : 3070283421
_STATISTICS_WRITING_APP: mkvmerge v79.0 ('Funeral Pyres') 64-bit
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:1(eng): Audio: eac3, 48000 Hz, 5.1(side), fltp, 640 kb/s (default)
Metadata:
BPS : 640000
DURATION : 00:42:02.240000000
NUMBER_OF_FRAMES: 78820
NUMBER_OF_BYTES : 201779200
_STATISTICS_WRITING_APP: mkvmerge v79.0 ('Funeral Pyres') 64-bit
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:2(eng): Subtitle: subrip (srt) (default) (forced)
Metadata:
title : Forced
BPS : 11
DURATION : 00:00:04.171000000
NUMBER_OF_FRAMES: 1
NUMBER_OF_BYTES : 6
_STATISTICS_WRITING_APP: mkvmerge v79.0 ('Funeral Pyres') 64-bit
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:3(eng): Subtitle: subrip (srt)
Metadata:
BPS : 71
DURATION : 00:40:58.915000000
NUMBER_OF_FRAMES: 581
NUMBER_OF_BYTES : 22118
_STATISTICS_WRITING_APP: mkvmerge v79.0 ('Funeral Pyres') 64-bit
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream mapping:
Stream #0:0 -> #0:0 (h264 (h264_qsv) -> h264 (h264_qsv))
Stream #0:1 -> #0:1 (eac3 (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
[hls @ 0x77e22fac7580] Opening '/cache/transcodes/987062323c7407b7496a83cb7db6426f-1.mp4' for writing
Output #0, hls, to '/cache/transcodes/987062323c7407b7496a83cb7db6426f.m3u8':
Metadata:
encoder : Lavf61.7.100
Stream #0:0: Video: h264, qsv(tv, bt709, progressive), 960x540 [SAR 1:1 DAR 16:9], q=2-31, 292 kb/s, 24 fps, 12288 tbn (default)
Metadata:
encoder : Lavc61.19.101 h264_qsv
Side data:
cpb: bitrate max/min/avg: 292001/0/292000 buffer size: 1168000 vbv_delay: N/A
Stream #0:1: Audio: aac, 48000 Hz, stereo, s16, 128 kb/s (default)
Metadata:
encoder : Lavc61.19.101 libfdk_aac
Side data:
cpb: bitrate max/min/avg: 128000/128000/128000 buffer size: 0 vbv_delay: N/A