Satyr supports the NVENC and VA-API hardware acceleration APIs. If you've configured your system correctly (the hard part) it should be enough to set the type and use the default device setting if you only have one hardware acceleration device.
### System
Configuring the system for any hardware acceleration API involves three main steps: selecting the right drivers, installing the API libraries, and configuring ffmpeg.
#### NVENC
NVENC in ffmpeg can work with either open-source drivers (nouvea) or nvidia's proprietary drivers. The documentation for your distribution should have instructions for installing these.
The only system library you should need is the CUDA toolkit, general named cudatoolkit, nvidia-cuda-toolkit, or some variation in your system repositories.
You can also try installing manually from [here](https://developer.nvidia.com/cuda-downloads).
Most binary distributions provide a version of ffmpeg with NVENC already enabled. If not you can try compiling ffmpeg from source with the `--enable-nvenc` flag. If you use a source based distribution you should be familiar with enabling optional compile flags.
You can verify that ffmpeg has been set up correctly by checking the output of `ffmpeg -hide_banner -hwaccels | grep cuvid` and `ffmpeg -hide_banner -encoders | grep nvenc`. If you don't see anything, something is wrong.
#### VA-API
VA-API is an extremely generic API. Although the package names might be different in your distribution, the arch wiki page for hardware acceleration has good information on [driver selection](https://wiki.archlinux.org/index.php/Hardware_video_acceleration#Installation) and [verifying](https://wiki.archlinux.org/index.php/Hardware_video_acceleration#Verifying_VA-API) a VA-API install for a wide range of devices.
Regardless of driver selection, you will also need libva or the equivalent from your distrubtion, and libva-utils can be helpful as well.
Most binary distributions provide a version of ffmpeg with VA-API already enabled. If not you can try compiling ffmpeg from source with the `--enable-vaapi` flag. If you use a source based distribution you should be familiar with enabling optional compile flags.
You can verify that ffmpeg has been set up correctly by checking the output of `ffmpeg -hide_banner -hwaccels | grep vaapi` and `ffmpeg -hide_banner -encoders | grep vaapi`. If you don't see anything, something is wrong.
### Satyr
```
# Decoding
hwaccel:
# Enable hardware acceleration for decoding as well as encoding.
# Probably not worth it, hardware decoding won't be any faster compared to software on a vaguely modern CPU
# Hardware decoding also may not support the input format, in which case transcoding will fail
decode: true
# Only supported for VA-API
# Fall back to software decoding if hardware decoding fails
hwaccel:
decode: 'fallback'
# NVENC
hwaccel:
type: 'nvenc'
# device is optional for nvenc
device: 0
# nvenc wants a device number instead of a path, set to null to use the default
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>"Play" or "start" icon from <A href="http://tango.freedesktop.org/Tango_Desktop_Project"> Tango Project </A> \n<BR><BR> \nSince version 0.8.90 Tango Project icons are Public Domain: <A href="http://tango.freedesktop.org/Frequently_Asked_Questions#Terms_of_Use.3F"> Tango Project FAQ </A></dc:description
awaitdb.query('CREATE TABLE IF NOT EXISTS ch_bans(channel VARCHAR(25), target VARCHAR(45), time BIGINT, length INT DEFAULT 30)');
console.log('!!! This migration has a race condition when run from the `npm run migrate` command. If thats how this was called, please re-run this migration manually.\n!!! Run `npm run v3-manual` to do so');
varbansdb=newdirty('./config/bans.db')
bansdb.on('load',async()=>{
bansdb.forEach(async(key,val)=>{
letips=Object.keys(val);
for(vari=0;i<ips.length;i++){
awaitdb.query('INSERT INTO ch_bans (channel, target, time, length) VALUES ('+db.raw.escape(key)+', '+db.raw.escape(ips[i])+', '+val[ips[i]].time+', '+val[ips[i]].length+')');
}
});
awaitdb.query('INSERT INTO db_meta (version) VALUES (3)');
console.log('Done migrating bans.db');
console.log('If this was a manual migration, you can kill the process now.');
awaitdb.query('delete from ch_bans where target='+db.raw.escape(b[0].target)+'and channel='+db.raw.escape(b[0].channel)+' and time='+db.raw.escape(b[0].time)+' and length='+db.raw.escape(b[0].length));
<!--this spits errors fucking constantly after it tries to reload a video that's already running.. I dunno if it's bad or causing problems so let's just push it to develop and wait for issues!-->
<!--it plays the stream without reloading the page tho lol-->
