Recording what we see.

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DalePenn
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Recording what we see.

Postby DalePenn » 22 Jul 2020 17:55

For background, I am experienced software developer, but not experienced working with video.

For our planned project we have a video camera with a serial interface for controlling pan/tilt/zoom. The output is strait NTSC video. Our plan is to feed to NTSC signal to a standalone converter that outputs streaming video on the local network. We then want to write an application with the libVLC player embedded, along with widgets to send appropriate commands out the serial port. So far so good.

But the end user wants a few other features. Basically they want to be able to take single frame captures of what they see (which I think the existing snapshot function will handle), and also to record short periods of what they see.

The last is what I am unsure of. I see a "stream_out_record" module exists, and noted that multicat program, but I think they want more like .mp4 files rather than recordings of the entire stream flow. Does such a thing exists ? If so, could I get a pointer on where to look ? Or is there another approach I should be looking at.

Thanks for you time,
Dale Pennington

Rémi Denis-Courmont
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Re: Recording what we see.

Postby Rémi Denis-Courmont » 22 Jul 2020 19:26

All of those things are possible with the VLC GUI, and accordingly with the VLC internal/plug-in functions. You won't find it them LibVLC as yet though.
Rémi Denis-Courmont
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DalePenn
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Re: Recording what we see.

Postby DalePenn » 22 Jul 2020 23:24

So I take it a code dive in the VLC source will be called for to figure stuff out ?

mfkl
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Re: Recording what we see.

Postby mfkl » 23 Jul 2020 09:59

So I take it a code dive in the VLC source will be called for to figure stuff out ?
If by figuring stuff out, you mean modifying libvlc to provide recording features, then yes.

relevant:
https://code.videolan.org/videolan/VLCK ... thod.patch
https://code.videolan.org/videolan/VLCK ... cord.patch
https://mfkl.github.io


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