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The stream is simply squirted at the IP address that you entered earlier - it can be left running and the TX does not need to be on. When you press a key, the window should change to one giving information about the stream being sent towards the Portsdown TX. To run the file, double click on the file in Windows Explorer, and it should ask for the Video bitrate and FEC, then ask you to press any key.
#Vmix fm how to
for callsign, locator): see blog post by Chris MW0LLK for how to add text to the batch file ( )
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You may want to adjust the aspect ratio of the output. This IP address is displayed when you change the Portsdown video source to IPTSIN (don't forget to press the space bar to change the selection!). Near the top of the file replace the callsign G8GKQ with your callsign then replace the IP address (192.168.2.111) with the IP address of your Portsdown TX RPi. You will need to make some amendments to the file do this by right-clicking and selecting edit.
#Vmix fm download
You can download it from here File:VMix2Portsdown.zip Unzip the file and save the and save the vMix2Portsdown.bat file to a logical place of your choice. It is suggested that you save a number of batch files with different bit rates at line 11.Īlternatively you can remove the rem at the beginning of line 9 and rem out line11 - then start the file by entering the file name followed by the TS rate required.
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Unless you have set up system paths, this batch file must be saved in the ffmpeg /bin directory H 265 file script for Nvidia GTX10xx graphics cardĪn example script based on one supplied by from Thomasz SQ6QV is available for download here: File:sample 333ks 23 s2 440.zip - you can rename it when saving but the name indicates it is set for 333ks 2/3 FEC DVB-S2 and the TS bit rate is 440 kbit/s. This script will vary depending upon ypur application - here are 2 examples:
#Vmix fm install
The last installation step on the PC is to install the windows batch file which will control ffmpeg. Unzip the downloaded file and move the files to a folder called ffmpeg on your C:\ drive so that it has the folders bin, docs, licenses and presets folders inside it.
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The next step is to install ffmpeg on your PC. We use ffmpeg to take the directshow output from Vmix, encode and multiplex it in to a compliant transport stream, add the service information and send it out using the UDP protocol.
#Vmix fm software
Then go to the External Output tab and set the video resolution to match your ffmpeg script as described below.įFmpeg is a free and open-source project consisting of a vast software suite of libraries and programs for handling video, audio, and other multimedia files and streams. You will need to configure the output, by clicking the cogwheel next to the "External" label and then clicking Output/NDI Settings. Wireless networks might work but have not been tested. Make sure that your PC with vMix and your Portsdown transmitter / Pluto are on the same wired network.
#Vmix fm trial
vMix can be downloaded from here: The free version handles SD video and is adequate for our needs it works in this mode after the 60-day trial period. It can stream directly on to the web but also produces a directshow external output which we can use to transmit DATV.įirst, install vMix on your PC and make sure that it works with your selected video source. VMix is a very flexible piece of software allowing you to mix and edit various video sources - it also has advanced facilities such as green screen and tickers.
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