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This VA-API AV1 support for FFmpeg is on top of many other FFmpeg feature additions in recent months. The Intel-contributed work was merged on Monday. The FFmpeg patch we talked about back in September has now been merged for allowing AV1 decode over the VA-API interface with this widely-used multimedia library.ffmpeg -vaapi_device / dev / dri / renderD128 -i input.mp4 -vf’format = nv12,hwupload’-c:v h264_vaapi output.mp4 如果已知输入是硬件可解码的,那么我们可以使用hwaccel: ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi -hwaccel_device / dev / dri / renderD128 -i input.mp4 -c:v h264_vaapi output.mp4.Video Acceleration API (abrégé en VA API, VA-API ou VAAPI) est une bibliothèque open source (libVA) et une interface de programmation qui visent à permettre le rendu vidéo par le processeur graphique sur les systèmes dérivés d'UNIX (comme Linux ou FreeBSD) utilisant X Window System.