Adding text to an existing (say MP4) video???

[Chris Wilson]

I need to find a way to add stationary or scrolling text of at least my name and location to existing videos I have on my PC. Most are in .mp4 or can be converted to .mp4 format. I want to do it here on my Win 7 PC, not upload stuff to the clouds to be manipulated by a third party. Each video could be done individually, and an original, none altered copy saved, or some means of adding top or bottom text on the fly may work although there's a complication as already the original is sent from OBS via a script to another device.

What I am doing is transmitting videos from my PC to the es hail satellite, which acts as a repeater where over a third of the world can see its geostationary footprint and amateur radio / tv enthusiasts can receive them. The regulations say I need my call sign and location shown on videos...

Thanks and all the best. Chris

 

[konsolenritter]

Are you streaming in realtime to the satellite?
And what do you mean exactly with "as already the original is sent from OBS via a script to another device"?

 

[Chris Wilson]

I am not sure of the definition of streaming in real time. I play the video through OBS and a script I'll copy below does "clever, and to me, mysterious things" to it before sending it to the transmitter. So I think that is considered real time?

I THINK the script sets various things and possibly converts it to .TS format. I am out of my depth here, sorry.

Here's some info, although I am using an ADALM Pluto as the primary transmitter stage:

IPTS Input to Portsdown with the LimeSDR - BATC Wiki

wiki.batc.org.uk

This is the batch file script I start off after OBS is running with the plug in Virtual Camera set to autostart.

Thanks for your interest and reply, appreciated.

D:\>echo:


D:\>echo:


D:\>echo H264 and H.265 Video Encoder with FFMPEG and NVIDIA or INTEL
H264 and H.265 Video Encoder with FFMPEG and NVIDIA or INTEL

D:\>echo H264 and H.265 Encodeur Video avec FFMPEG et NVIDIA ou INTEL
H264 and H.265 Encodeur Video avec FFMPEG et NVIDIA ou INTEL

D:\>echo =============================================================
=============================================================

D:\>echo:


D:\>echo Transmiter IP: 192.168.********* Your callsign set to 2E0ILY
Transmiter IP: 192.168.*********** Your callsign set to 2E0ILY

D:\>echo:


D:\>echo Start this script once OBS is running with Virtual CAM installed
Start this script once OBS is running with Virtual CAM installed

D:\>echo then leave it running. Then select Transmit on the transmitter
then leave it running. Then select Transmit on the transmitter

D:\>echo:


D:\>echo This script is for SRs of 25KS 35KS 66KS, 125KS, 250kS, 333kS, 500kS, 1
000KS and 2000kS
This script is for SRs of 25KS 35KS 66KS, 125KS, 250kS, 333kS, 500kS, 1000KS and
2000kS

D:\>echo Set the Modulation type, SR, FEC and coding headroom
Set the Modulation type, SR, FEC and coding headroom

D:\>echo Press Enter for default (previous) values
Press Enter for default (previous) values

D:\>echo:


D:\>SETLOCAL EnableExtensions

D:\>set EXE=obs64.exe

D:\>FOR /F %x IN ('tasklist /NH /FI "IMAGENAME eq obs64.exe"') DO IF %x == obs64
.exe goto :requestMod

D:\>IF INFO: == obs64.exe goto :requestMod

D:\>echo:


D:\>echo ---------------OBS is not START---------------
---------------OBS is not START---------------

D:\>echo ---------------OBS n'est pas demarre-------------
---------------OBS n'est pas demarre-------------

D:\>echo:


D:\>pause
Press any key to continue . . .

 

[konsolenritter]

The output of the run' script doesn't help, sorry. To that extend it just proofs that obs64.exe is running, not more.
Because we don't precisely know the function (and we haven't the time to get involved completely into that portsdown thing here),

what if you just add a lower-thirds or simple text source (to start with) over your video. Does that come thru to your device?

 

[Chris Wilson]

Yes, it does, I used Text (GDI+) whatever that is, but the text is fuzzy, can I fix up something better? Maybe semi transparent on top of the video? Thanks

very much for your help!!

 

[Chris Wilson]

Save your valuable time, some Googling shows me that making the font bigger, and collapsing the image size smaller gets rid of the fuzziness, I seem to be getting there. Great software, thanks to the development and support teams.