Changes between Version 21 and Version 22 of HWAccelIntro

Timestamp:

Jan 6, 2016, 4:36:20 PM (11 years ago)

Author:

Roger Pack

Comment:

add nvenc usage

HWAccelIntro

@@ -68 +68 @@
 == NVENC ==
 
-NVENC is an API developed by NVIDIA which enables the use of NVIDIA GPU cards to perform H.264 and HEVC encoding. FFmpeg supports NVENC through the {{{nvenc_h264}}} and {{{nvenc_hevc}}} encoders. In order to enable it in FFmpeg you need to locally install the {{{nvEncodeAPI.h}}} header from the NVENC SDK and configure with {{{--enable-nvenc}}}.
+NVENC is an API developed by NVIDIA which enables the use of NVIDIA GPU cards to perform H.264 and HEVC encoding. FFmpeg supports NVENC through the {{{nvenc_h264}}} and {{{nvenc_hevc}}} encoders. In order to enable it in FFmpeg you need to locally install the {{{nvEncodeAPI.h}}} headers from the NVENC SDK and configure with {{{--enable-nvenc}}}.
 
 To read more about the supported GPUs and download the NVENC SDK go to the following link:
 https://developer.nvidia.com/nvidia-video-codec-sdk
+
+Usage:
+
+example:
+{{{ 
+ffmpeg -i input -c:v nvenc -r $fps$ -preset default  -crf 30  -b:a 128k “$output$”
+}}}
+
+you can see available presets with “-preset help”
+
+{{
+hq = high quality
+hp = high performance
+bd = Bluray Disk
+ll = low latency
+llhq = low latency high quality
+llhp = low latency high performance
+default = between llhq and llhp (same as ll?)
+}}
 
 == Intel QSV ==