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--- ubuntu:video:ffmpeg:hardware_acceleration_using_gpu:nvidia_gpu [2023/06/13 09:28] – ↷ Page moved from ubuntu:video:ffmpeg:hardware_transcoding_using_gpus:nvidia_gpu to ubuntu:video:ffmpeg:hardware_acceleration_using_gpu:nvidia_gpu peter
+++ ubuntu:video:ffmpeg:hardware_acceleration_using_gpu:nvidia_gpu [2023/06/13 10:24] (current) – removed peter
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-====== Ubuntu - Video - ffmpeg - Hardware transcoding using GPUs - Nvidia GPU ======
-===== Nvidia GPUs =====
-<code>
-nvenc_h264
-nvenc_h265
-</code>
-----
-===== Decoding =====
-<code bash>
--hwaccel cuda
-</code>
-----
-===== Encoding =====
-==== For video resolution <= 4K ====
-<code bash>
--c:v h264_nvenc
-</code>
-==== For video resolution > 4K ====
-<code bash>
--c:v hevc_nvenc
-</code>
-----
-===== Examples =====
-#1 - A corrupt 1920x1080 video:
-<code bash>
-ffmpeg -y -vsync 0 -hwaccel cuda -i "input.mp4" -c:a copy -c:v h264_nvenc -b:v 2M -pix_fmt yuv420p "output.mp4"
-</code>
-----
-#2
-- a 7680x3840 H.265 video with incompatible profile for VHT
-- a stutter playback 7260x3630 60fps 10bit video
-<code bash>
-ffmpeg -y -vsync 0 -hwaccel cuda -i "input.mp4" -c:a copy -c:v hevc_nvenc -b:v 80M -pix_fmt yuv420p "output.mp4"
-</code>
-----
-#3
-- a 7680x7680 video not hardware decoded because is H.264 encoded
-<code bash>
-ffmpeg -y -vsync 0 -i "input.mp4" -c:a copy -c:v hevc_nvenc -b:v 62M -pix_fmt yuv420p "output.mp4"
-</code>