[WNYLUG-Users] Video capture and conversion

Joe josephj at main.nc.us
Thu Oct 23 14:17:45 EDT 2014

Thanks. I'll try that.

The problem is that the STB puts out analog video that looks like 480P
letterbox, but it's getting recorded as 720P with big black borders.

I was hoping there was some magic to actually "clip" the 480P out of the
720P "wrapper" in post processing. I can't seem to find an option in the
system I have to create it as 480P to start with.

If there's a better hardware/software way to do this right to start with
(in Linux or Windows 7), I'd like to hear about it. I haven't found
anything on Linux which I could get to work at all.


On 10/23/2014 08:00 AM, Monkberry.com wrote:
> My myth box creates an average file size of 3.32G for a 30 min show at
> 720P in mpg format. What are you planning on using the reduced file in
> ? Try this and check your mileage.
> avconv -i hugempgfile.avi notsohugefile.webm
> On 10/22/2014 09:24 PM, Rita wrote:
>> Flailing at Video again:
>> I have some hardware/software in Windows which captures video for me.
>> (Pinnacle Studio HD 15 with a Dazzler DVC 100 rev. 1.1 connected to a
>> set top box)
>> The way it's currently configured (the only way I made it work so far),
>> it puts out an avi file that is about 5.6GB per half hour. I don't see
>> any way to fix this and it's a Windows question anyway.
>> (Yes, I tried to get the hardware working on Linux - but without any
>> luck so far.)
>> I took the resulting file over to Linux and want to make it a lot smaller.
>> It looks like a letterbox video stuffed into a 720P format/frame (which
>> may account for a bunch of the size problem).
>> I found this:
>> avconv -i $1 -vcodec msmpeg4v2 $2
>> which cuts it all the way down to 64MB, but with too much loss of quality.
>> Can anyone suggest another way to reduce the file size?
>> I don't know enough to make sense out of the other few hundred avconv
>> options.
>> TIA
>> Joe
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