Скачать или смотреть hardware vs Software ffmpeg encoding

his video test speeds of encoding hardware v software in ffpmeg

index of the video

00:00 - intro
00:09 - software encoding overview
01:14 - hardware encoding overview
02:48 - create 10 minute blank video file
03:54 - h264 commands
05:12 - the race to encode to h264
06:10 - h265 commands
07:06 - the race to encode to h264
08:45 - outro

these are the commands used in the video

To create a blank video

ffmpeg -f lavfi -i color=size=1920x1080:rate=25:color=black -c:v prores -t 600 output.mov

duration is 600 seconds (10 minutes)
size is 1080 hd video
encoder is apples prores QuickTime

Software encode to h264 and h265

ffmpeg -i output.mov -c:v libx264 -pix_fmt yuv420p -rc constqp -qp 24 out_sw_264.mp4
ffmpeg -i output.mov -c:v libx265 -rc constqp -qp 24 out_sw_265.mp4

hardware encode to h264 and h265 using an nvida rtx 2000's

ffmpeg -hwaccel auto -i output.mov -pix_fmt yuv420p -c:v h264_nvenc -rc constqp -qp 24 out_hw_264.mp4
ffmpeg -hwaccel auto -i output.mov -c:v hevc_nvenc -rc constqp -qp 24 out_hw_265.mp4

The command i used to create the timer (used in the video)

ffmpeg -f lavfi -i color=c=black:s=240x96 -ss 00:00:00 -t 00:05:00 -vf "drawtext=fontfile=courbd.ttf:text='%{pts\:gmtime\:0\:%M\\\:%S}':fontcolor=white:fontsize=64:x=(w-tw)/2:y=(h-th)/2:box=1:[email protected]:boxborderw=10,format=yuv420p" -vcodec h264_nvenc -qp 24 -b:v 0K timer_hw_264.mp4