How do I use VMix with Portsdown 2019?
How do I use VMix with Portsdown 2019?
How do I connect my PC to the 2019 Portsdown to use VMix for transmission? Is it via USB or Streaming? If streaming how do I tell Portsdown to use it as a transmit source? I suspect the wikki gen is for the older version.
G3YQC - John
G3YQC - John
Re: How do I use VMix with Portsdown 2019?
Hi John
It is done by sending the transport stream from the PC to the Portsdown over the network. This Wiki page has all the details: https://wiki.batc.org.uk/Feeding_Video_ ... _from_vMix.
The only thing that needs adding is that if you are using a touchscreen, you should select IPTS IN from the "Encoder" menu.
Haven't tried it recently, but it should work.
Dave
It is done by sending the transport stream from the PC to the Portsdown over the network. This Wiki page has all the details: https://wiki.batc.org.uk/Feeding_Video_ ... _from_vMix.
The only thing that needs adding is that if you are using a touchscreen, you should select IPTS IN from the "Encoder" menu.
Haven't tried it recently, but it should work.
Dave
Re: How do I use VMix with Portsdown 2019?
OK Dave I will try that. Thanks a lot
Re: How do I use VMix with Portsdown 2019?
I have finally got the vMix output to talk to the Portsdown 2019 (thanks Dave) over my local network. But the transmitted pics received on my MiniTune RX are blocky in the extreme and, no matter what adjustments I make to vMix settings nothing makes any difference.
The Portsdown is working fine and sends the built-in test pics, as well as inputs from my camcorder – via an EasyCap capture device – without problems so, suspecting that the BATC Wiki info may be out of date for the 2019 version, I need to communicate with someone who is successfully using the 2019 Portsdown with latest software and the current version of vMix.
I have been using both the original Batch file and the later H264 version from the Wiki. With both, using 1000kS, the signal sometimes locks initially then cuts out and tries to lock again…etc. Using 333kS is much better although the pictures often start to appear (top quarter) but then they freeze and get blocky and very jerky.
Anyone able to help please?
The Portsdown is working fine and sends the built-in test pics, as well as inputs from my camcorder – via an EasyCap capture device – without problems so, suspecting that the BATC Wiki info may be out of date for the 2019 version, I need to communicate with someone who is successfully using the 2019 Portsdown with latest software and the current version of vMix.
I have been using both the original Batch file and the later H264 version from the Wiki. With both, using 1000kS, the signal sometimes locks initially then cuts out and tries to lock again…etc. Using 333kS is much better although the pictures often start to appear (top quarter) but then they freeze and get blocky and very jerky.
Anyone able to help please?
Re: How do I use VMix with Portsdown 2019?
Set a lower resolution in VMIX external output. See if that helps.
Mike
Mike
Re: How do I use VMix with Portsdown 2019?
Agree with Mike - try 384*288 as the "output size" for the Vmix external output (click the cog sign next to "External").
73
Noel
73
Noel
Re: How do I use VMix with Portsdown 2019?
No error messages in the batch file window
Output #0, mpegts, to 'udp://192.168.1.8:10000?pkt_size=1316':
Metadata:
service_provider: BATC
service_name : G4WIM
encoder : Lavf58.27.103
Stream #0:0: Video: h264 (libx264), yuv420p(progressive), 768x576 [SAR 1:1 DAR 4:3], q=2-35, 428 kb/s, 25 fps, 90k tbn, 25 tbc
Metadata:
encoder : Lavc58.52.101 libx264
Side data:
cpb: bitrate max/min/avg: 428000/0/428000 buffer size: 857000 vbv_delay: -1
Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc58.52.101 aac
frame=20605 fps= 14 q=22.0 size= 94621kB time=00:25:00.16 bitrate= 516.7kbits/s speed= 1x
I always seem to have problems ffmpeg !
Re: How do I use VMix with Portsdown 2019?
Many thanks for the replies gents, much appreciated.
I have tried 320-240 resolution for ext. O/P but no difference but I will try 384-288, just to see.
G4WIM - you have illustrated the problem exactly, in fact your pic is a bit better than mine. I have found that by using vMix colour bars as an input they mostly come out right! is this a pointer to a difference it outputting colour bars rather that a picture, either video or photo?
I am quite new to digital TV although I have been an ATVer since the seventies. Can I go back to analogue please? Hi
I have tried 320-240 resolution for ext. O/P but no difference but I will try 384-288, just to see.
G4WIM - you have illustrated the problem exactly, in fact your pic is a bit better than mine. I have found that by using vMix colour bars as an input they mostly come out right! is this a pointer to a difference it outputting colour bars rather that a picture, either video or photo?
I am quite new to digital TV although I have been an ATVer since the seventies. Can I go back to analogue please? Hi
Re: How do I use VMix with Portsdown 2019?
I think it means you have video bit rate issues. Not sure of a fix. You could try encoding the video and audio on your PC and sending it as UDP to the PI and LimeSDR.
I have a script from Evariste It is a little old but should work when approprately edited. Not you need ffmppeg installed on your PC in C:\ffmpeg\bin\
Mike
I have a script from Evariste It is a little old but should work when approprately edited. Not you need ffmppeg installed on your PC in C:\ffmpeg\bin\
Mike
Re: How do I use VMix with Portsdown 2019?
OK Mike, many thanks. I will look into your suggestions and see how we get on. I just find it a bit odd that users, such as yourself and several others seen regularly on the satellite, appear to use vMix without aparent problem, so why should mine, and others, setup behave differently?
Right, soldier on then, I will crack it (eventually)
John
Right, soldier on then, I will crack it (eventually)
John