Use Intel QuickSync Video hardware acceleration for transcoding video

global_quality parameter ranges from 1 (almost lossless) to 50 (very lossy).

by niutech
Updated on: January 21, 2025
tags: #acceleration

# For H264:
ffmpeg -hwaccel qsv -c:v h264_qsv -i input.mp4 -c:v h264_qsv -global_quality 40 -look_ahead 1 output.mp4
# For HEVC:
ffmpeg -hwaccel qsv -c:v hevc_qsv -i input.mp4 -c:v hevc_qsv -global_quality 40 -look_ahead 1 output.mp4
# For rescaling and changing framerate add:
-vf 'vpp_qsv=framerate=30,scale_qsv=w=1920:h=1080'

Gitalking ...