ffmpeg video recording info

gistfile1.txt

Hardware acceleration methods:
cuda
dxva2
qsv
d3d11va
opencl
vulkan

ffmpeg -h encoder=h264_amf
ffmpeg -h encoder=hevc_amf
ffmpeg -h encoder=libx264rgb
ffmpeg -h encoder=libx265


-- record.bat

@echo off
FOR /F "tokens=*" %%g IN ('d:\msys64\usr\bin\date.exe +"%%Y-%%m-%%d_%%H-%%M-%%S"') do (SET date_str=%%g)
@echo on
ffmpeg -hwaccel d3d11va -f gdigrab -framerate 60 -i desktop -f dshow -i audio="virtual-audio-capturer" -c:v libx264rgb -crf 26 -preset ultrafast -color_range 2 -strftime 1 rec1-%date_str%.mkv"


-- record options

ffmpeg -hwaccel d3d11va -f gdigrab -framerate 60 -i desktop -f dshow -i audio="virtual-audio-capturer" -c:v libx264rgb -crf 26 -preset ultrafast -color_range 2 -strftime 1 rec1-%date_str%.mkv"

ffmpeg -hwaccel d3d11va -f gdigrab -framerate 60 -thread_queue_size 32 -i desktop -f dshow -thread_queue_size 32 -i audio="virtual-audio-capturer" -c:v h264_amf -rc cbr -b:v 30M -filler_data 1 rec2-%date_str%.mp4


[ issue with audio not synchronized with video ]