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rinaldo  
#1 Posted : Friday, May 12, 2017 9:50:37 AM(UTC)
rinaldo

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Hi folks!

I've built a new backup machine for Vmix with:

- MSI Z270 gaming 7
- Intel I7-7700K 4.2ghz
- Asus GTX 550Ti
- Samsung EVO 850 512Gb
- Blackmagic Decklink Studio 2

When I try to enable Hardware acceleration on FFMPEG stream I get:


FFMPEG.Exited
libswresample 2. 0.100 / 2. 0.100
libpostproc 54. 0.100 / 54. 0.100
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, dshow, from 'video=vMix Video:audio=vMix Audio':
Duration: N/A, start: 2151.968000, bitrate: 1536 kb/s
Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 1920x1080, 50 tbr, 10000k tbn, 50 tbc
Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
[tcp @ 04059100] TCP Buffer has been set to 12740608 bytes
[nvenc @ 0405ae80] No NVENC capable devices found
Output #0, flv, to 'rtmp://a.rtmp.youtube.com/live2/xxxx-xxxx-xxxx-xxxx':
Stream #0:0: Video: h264, none, q=2-31, 128 kb/s, 50 fps
Metadata:
encoder : Lavc57.3.100 nvenc
Stream #0:1: Audio: aac, 0 channels, 128 kb/s
Metadata:
encoder : Lavc57.3.100 libfaac
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (nvenc))
Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (libfaac))
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height


I know that the GPU is quite old but I don't want to spend other money for a new GPU right now...
DWAM  
#2 Posted : Friday, May 12, 2017 10:01:08 AM(UTC)
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Hi
Quote:
No NVENC capable devices found

Your GTX is not able to do the hardware encoding.
Got to upgrade to a more recent model (from the 7xx series or better) or simply don't use hardware encoding but CPU encoding.

Guillaume
thanks 1 user thanked DWAM for this useful post.
mjgraves on 5/12/2017(UTC)
IceStream  
#3 Posted : Friday, May 12, 2017 10:03:35 AM(UTC)
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@ rinaldo

I believe the 'Hardware Acceleration' only works on GTX 750 or better.
(I also think I killed my 470 when I accidentally had it enabled)


Ice
IceStream  
#4 Posted : Friday, May 12, 2017 10:11:04 AM(UTC)
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@ rinaldo

AFAIK, support for GPU hardware encoding began with vMix 16 as described here:

https://forums.vmix.com/....aspx?g=posts&t=5159

Hope that puts it in context...


Ice
rinaldo  
#5 Posted : Friday, May 12, 2017 10:16:10 AM(UTC)
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Thanks!

A friend as a GTX 750 Gygabyte and a GTX 750Ti from MSI to sell. Wich one is better?
DWAM  
#6 Posted : Friday, May 12, 2017 10:28:11 AM(UTC)
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I guess the Ti is slightly more powerful but I'm not sure it really makes a difference for encoding.
rinaldo  
#7 Posted : Friday, May 12, 2017 10:35:17 AM(UTC)
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Sorry, one is 750 and the other 770
IceStream  
#8 Posted : Friday, May 12, 2017 10:47:04 AM(UTC)
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@ rinaldo

If you can afford it, I would opt for the 770 (I am biased, but I personally prefer the x70 series and above)


Ice
rinaldo  
#9 Posted : Friday, May 12, 2017 10:52:47 AM(UTC)
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IceStream wrote:
@ rinaldo

If you can afford it, I would opt for the 770 (I am biased, but I personally prefer the x70 series and above)


Ice

Thanks IceStream!

So 770!

Good luck for Team Canada against France ;-)
DWAM  
#10 Posted : Friday, May 12, 2017 4:36:52 PM(UTC)
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Quote:
Good luck for Team Canada against France ;-)

That was close, but the cousins won! ;o(
IceStream  
#11 Posted : Friday, May 12, 2017 7:53:56 PM(UTC)
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It's somewhat funny that our country, with hockey being our national sport, does not get too excited or provide extensive coverage of the "world championship".
Is it important?
YES , but it's at the wrong time of year for us to really pay attention.
The NHL is in the midst of the Stanley Cup playoffs, which for most Canadians is the "Holy Grail" of championships.
The world championship is more like a 'consolation' tournament for those players whose team did not advance in the playoffs.
If the tournament were held in September (pre-season) it would generate a lot more excitement in the great white north.
If we don't win, we easily chalk it up to the fact that many of our top players either don't or are unable to attend.
In any event, we always expect that we will do well.
( and in all honesty, I have yet to catch a game this year)


Ice
DWAM  
#12 Posted : Friday, May 12, 2017 7:58:07 PM(UTC)
DWAM

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The funny thing is that we have NHL here too... ;o)
But obviously full coverage of the World Championship anyway.
IceStream  
#13 Posted : Friday, May 12, 2017 8:19:44 PM(UTC)
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@ DWAM

I think the day is coming when the league will expand to Europe, maybe not in my life time, but certainly from the business side of things, in order for the NHL to maintain its status as the "Premier" professional hockey league it will have to develop its brand beyond North America, besides, not only is there great talent in Europe, but I believe there is a bigger hockey market there than there is in much of the US, where hockey is more of a novelty and simply takes a back seat to football (American), baseball and basketball.
But alas, I digress as this has little to do with NVidea GPUs lol.


Ice
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