FFmpeg

• examples https://jeremyrouet.medium.com/simple-commands-to-learn-ffmpeg-in-real-use-case-a53f4360efa7
• qsv params gist
  
• install ffmep qsv https://gist.github.com/Brainiarc7/4f831867f8e55d35cbcb527e15f9f116
  
• video for test http://ultravideo.fi/#testsequences
• ffmpeg QSV params - https://trac.ffmpeg.org/wiki/Hardware/QuickSync
• Example to encode to HEVC
• best presets to h264 h264

## FFMPEG
apt install ffmpeg
ffmpeg -decoders|Select-String "qsv"
ffmpeg -encoders|Select-String "qsv"
ffmpeg -hide_banner -h encoder=hevc_qsv
#--------- ASUS N750JK
#asus encode
 ffmpeg  -i .\akudama.mp4 -i .\akudama_240.mp4    -c:v h264_qsv -preset 1 -rdo 1 -global_quality 23   -bf 4 -refs 4 -g 250 "qsv_h264.mp4"
 
# asus dvd to mp4 decode
 ffmpeg  -i "concat:VTS_02_1.VOB|VTS_02_2.VOB|VTS_02_3.VOB"    -c:v h264_qsv -preset 1 -rdo 1 -global_quality 20   -bf 4 -refs 4 -g 250 -c:a aac -b:a 192k -loglevel verbose d:\cosmetology.mp4
 
# decode in all sub directories files *.m2ts  and save in one catalogue 
for /R d:\recode %f in (*.m2ts) do ffmpeg  -i "%f" -vf "yadif=1:-1:0" -c:v h264_qsv -preset 1 -rdo 1 -global_quality 20   -bf 4 -refs 4 -g 250 -c:a aac -b:a 192k -loglevel verbose "c:\tmp\encoded\%~nf.mp4"
 
# decode in all sub directories files *.mpg  and save in one original catalogue 
for /R "Y:\EOS\ФОТО\" %f in (*.mpg) do ffmpeg  -i "%f" -vf "yadif=1:-1:0,hqdn3d=2:1:2" -c:v h264_qsv -preset 1 -rdo 1 -global_quality 24   -bf 4 -refs 4 -g 250 -c:a aac -b:a 192k -loglevel verbose "%~dpnf.mp4"
 
-------------------------------
# -------- modern CPU HEVC
# encode string H264 -> HEVC h265
ffmpeg -t:v 400  -init_hw_device qsv=hw -filter_hw_device hw -c:v h264_qsv -i .\emma.mp4 -vf hwupload=extra_hw_frames=64,format=qsv -c:v hevc_qsv -preset 1 -rdo 1 -global_quality 23  -mbbrc 1  -adaptive_i 1 -adaptive_b 1 -b_strategy 1 -bf 4 -refs 4 -g 250 -metadata:s:a language=eng -metadata creation_time=now -loglevel verbose "HEVC ICQ.mp4"
 
# encode finish string ----------------------------
 ffmpeg   -init_hw_device qsv=hw -filter_hw_device hw -c:v h264_qsv -i .\islrose.mp4  -vf hwupload=extra_hw_frames=64,format=qsv -c:v hevc_qsv -preset 3 -rdo 1 -global_quality 23  -mbbrc 1  -adaptive_i 1 -adaptive_b 1 -b_strategy 1 -bf 4 -refs 4 -g 250 -metadata:s:a language=eng -metadata creation_time=now -loglevel verbose "islrose_hevc.mp4"
#--------------------------------------------------
 
# examples https://kimathir.wordpress.com/2018/05/07/intel-qsv-encoding-coffee-lake/
#HEVC (10bit):
ffmpeg -i input.mp4 -load_plugin hevc_hw -c:v hevc_qsv -pix_fmt p010le -global_quality 25 -g 24 -c:a aac -b:a 192k -metadata:s:a language=eng -metadata creation_time=now -loglevel verbose hevc.mp4
#AVC:
ffmpeg -i input.mp4 -c:v h264_qsv -global_quality 25 -g 24 -c:a aac -b:a 192k -metadata:s:a language=eng -metadata creation_time=now -loglevel verbose avc.mp4

Intel n100

  Intel N100 processor. The N100 belongs to the Alder Lake-N architecture and was launched in Q1 2023. Here are its key specifications:
  Total Cores: 4
  Total Threads: 4
  Max Turbo Frequency: 3.40 GHz
  Cache: 6 MB Intel® Smart Cache
  TDP: 6 W
  Memory Types: DDR4 3200 MT/s, DDR5 4800 MT/s

configure qsv 12th gen on proxmox lxc
jellyfin configure QSV on intel off wiki ffmpeg vaapi off wiki QSV quick sync
intel decoding/encoding features
igpu_passthrough_for_intel_quick_sync

1. on proxmox see in Linux.proxmox install alderlake
2. in lxc container(CT) configure like configure qsv 12th gen on proxmox lxc
3. inside CT upgrade and add jellifin repository and install jellyfin ffmpeg

# for N100 cpu use VAAPI not QSV
# get info abot VA
 
sudo vainfo --display drm --device /dev/dri/renderD128
env -u DRI_PRIME LIBVA_DRIVER_NAME=iHD vainfo --display drm --device /dev/dri/renderD128
 
cliinfo 
 
intel_gpu_top -d sriov
 
 
 
ffmpeg -hwaccels
ffmpeg -hide_banner -encoders|grep h264
 
# https://trac.ffmpeg.org/wiki/Hardware/VAAPI
#Check ffmpeg
ffmpeg -v verbose -init_hw_device vaapi=va:/dev/dri/renderD128 -init_hw_device opencl@va
 
# debug va
LIBVA_TRACE=/tmp/libva_trace.log DRI_PRIME=0 LIBVA_DRIVER_NAME=iHD ffmpeg -loglevel verbose -init_hw_device vaapi=/dev/dri/renderD128
echo $DRI_PRIME ${VDPAU_DRIVER:=unset} ${LIBVA_DRIVER_NAME:=unset}
 
#Example vaapi
ffmpeg -init_hw_device vaapi=foo:/dev/dri/renderD128 -hwaccel vaapi -hwaccel_output_format vaapi -hwaccel_device foo -i input.mp4 -filter_hw_device foo -vf 'format=nv12|vaapi,hwupload' -c:v h264_vaapi output.mp4
# frame= 6348 fps=248 q=-0.0 size=   87040kB time=00:04:24.68 bitrate=2693.9kbits/s speed=10.3x    
 
# codecs param 
ffmpeg -help encoder=h264_vaapi
 
 
#example QSV
LIBVA_TRACE=/tmp/libva_trace.log DRI_PRIME=0 LIBVA_DRIVER_NAME=iHD /usr/lib/jellyfin-ffmpeg/ffmpeg -init_hw_device qsv=hw -filter_hw_device hw -i input.mp4 -vf hwupload=extra_hw_frames=64,format=qsv -c:v h264_qsv -b:v 5M -maxrate 5M output.mp4
#frame= 1285 fps=122 q=19.0 Lsize=   33332kB time=00:00:53.50 bitrate=5103.5kbits/s speed=5.07x   
 
#on host check stat of gpu
oot@pve:/usr/src/i915-sriov-dkms-6.5.13-3# intel_gpu_top -d sriov
 
intel-gpu-top: Intel Alderlake_n (Gen12) @ /dev/dri/card0 -  749/ 737 MHz;   0% RC6
    1.11/12.68 W;        0 irqs/s
 
         ENGINES     BUSY                                                 MI_SEMA MI_WAIT
       Render/3D   42.18% |███████████████████                          |      0%      0%
         Blitter    0.00% |                                             |      0%      0%
           Video   18.49% |████████▍                                    |      0%      0%
    VideoEnhance   12.34% |█████▋                                       |      0%      0%
       [unknown]    0.00% |                                             |      0%      0%