JPEG usually means still frames. What about something like one of these?
They have the ADC on-chip already
http://www.arducam.com/camera-modules/2mp-mt9d111/

Ryan

On 8 March 2018 at 17:31, Neil <picdude3@narwani.org> wrote:

> I discovered that too.  Seems that the TTL NTSC means NTSC analog output
> with TTL serial control.
> I'll need to figure out how fast that ADC would need to be.
>
> I now see JPEG camera modules... I need to figure out the protocol for
> that.
>
> Cheers,
> -Neil.
>
>
>
> On 3/7/2018 11:00 PM, Jean-Paul Louis wrote:
> > Neil,
> > That camera has only analog output, so you will need a fast ADC to
> record it.
> >
> >
> >
> >> On Mar 7, 2018, at 9:22 PM, Neil <picdude3@narwani.org> wrote:
> >>
> >> I want to record video of at least 1.0MP to SSD (or other memory) for
> >> about 3-5 minutes.  15FPS is fine.  But I really want to avoid SBCs
> >> because of the OS (and more specifically the boot time), so wondering
> >> what it would take to do this with a microcontroller.
> >> I'm looking at camera modules similar to this...
> >> https://www.aliexpress.com/item/600TVL-1-4-1-8mm-CMOS-
> FPV-170-Degree-Wide-Angle-Lens-Camera-PAL-NTSC-image/32570417705.html
> >>
> >> I believe (haven't yet found a clear answer) that these cameras do 24
> >> bpp (Is this correct?), and if so I'd need 1 MP x 3 bytes x 60 secs x =
5
> >> mins =3D 900 MB to store raw data.
> >> That's no prob with an SD card, but I expect bandwidth will be an issu=
e,
> >> so I'd need to compress it.  This is where I draw a blank... what does
> >> it take to compress video?
> >>
> >> I'm clueless on video, so wondering if a microcontroller (say PIC32 or
> >> ARM) would be able to accept TTL NTSC video at this rate and compress
> >> it, and then store it.  Or is there a specialized processor I can use =
to
> >> accept the NTSC video stream and store it to SD?
> >> Should I use some other protocol other than NTSC for this perhaps?
> >>
> >> Cheers,
> >> -Neil.
> >>
> >> --
> >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
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> >> http://mailman.mit.edu/mailman/listinfo/piclist
> > Just my $0.02,
> >
> > Jean-Paul
> > N1JPL
> >
> >
> >
> >
>
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