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GPU Acceleration for UDP stream

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GPU Acceleration for UDP stream

Postby dinesh24 » Fri Sep 22, 2017 9:40 am


We need enable GPU acceleration for multibitrate UDP stream. We have installed the NVIDIA GeForce GTX 1080 graphic on my worksystem.

I have use the below FFMPEG command to generate mutibitrate UDP stream.

We parameter should i mention so ffmpeg processs the video using GPU acceleration.

Code: Select all
ffmpeg.exe -re -i "C:/Program Files (x86)/Wowza Media Systems/Wowza Streaming Engine 4.7.1/content/sample.mp4"  -vcodec libx264 -s 1920x1080  -vb 4500k -r 30 -g 60 -vprofile main -level 5 -pix_fmt yuv420p -acodec aac -ab 64k -ar 48000 -ac 2 -vbsf h264_mp4toannexb -strict experimental -f mpegts udp:// -vcodec libx264 -s 1280x720  -vb 3000k -r 30 -g 60 -vprofile main -level 5 -pix_fmt yuv420p -acodec aac -ab 64k -ar 48000 -ac 2 -vbsf h264_mp4toannexb -strict experimental -f mpegts udp:// -vcodec libx264 -s 854x480  -vb 1200k -r 30 -g 60 -vprofile main -level 5 -pix_fmt yuv420p -acodec aac -ab 64k -ar 48000 -ac 2 -vbsf h264_mp4toannexb -strict experimental -f mpegts udp://

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Re: GPU Acceleration for UDP stream

Postby llogan » Fri Sep 22, 2017 5:46 pm

https://trac.ffmpeg.org/wiki/HWAccelInt ... IDNvDecode

I have performed little hardware accelerated decoding or encoding so I won't be able to provide anything more than those links.

Unrelated to this posts question:
I doubt you need "-strict experimental": that's for old ffmpeg for use with the native AAC encoder.

You can make your command somewhat more efficient by using the tee muxer to encode the audio only once. See the example in:
https://trac.ffmpeg.org/wiki/Creating%2 ... eudo-muxer
But if your current command works fine as is using tee may make it needlessly more complex.
Get an answer more quickly by providing your actual ffmpeg command and the complete console output. Use the code button to format your command and output or your question will be ignored.
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