Mailing List Archive: MPEG1 setting on PVR-250?!?

MPEG1 setting on PVR-250?!?

Jul 19, 2003, 6:47 PM

Post #1 of 3 (949 views)

I'd like my pvr-250 to encode and output to a file mpeg1 and not mpeg2. Is
there a way to do this with the ivtv drivers? I tried test_ioctl -c
stream_type=2, and the file it outputs appears to be mpeg1 but the image is
very messed up. Are there other special control settings I need to do? I
don't really want real high quality for my recordings and I would like to be
able to burn them straight to VCD (not SVCD). Just FYI standard mpeg2 works
file.

thanks for any help you can provide,
Joshua

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*<|:oþ
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Beware the Jubjub bird, and shun
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Re: MPEG1 setting on PVR-250?!? [ In reply to ]

wd at pobox

Jul 19, 2003, 8:18 PM

Post #2 of 3 (936 views)

Permalink

At 06:47 PM 7/19/2003 -0700, you wrote:
>I'd like my pvr-250 to encode and output to a file mpeg1 and not mpeg2. Is
>there a way to do this with the ivtv drivers? I tried test_ioctl -c
>stream_type=2, and the file it outputs appears to be mpeg1 but the image is
>very messed up. Are there other special control settings I need to do? I
>don't really want real high quality for my recordings and I would like to be
>able to burn them straight to VCD (not SVCD). Just FYI standard mpeg2 works
>file.

Don't have an answer for you, but I can say that recording directly to
VCD-compliant MPEG1 would probably be a bad idea. The quality will likely
be quite horrible.

You'd be much better off recording to MPEG2 and transcoding to VCD.

-WD
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Re: MPEG1 setting on PVR-250?!? [ In reply to ]

wishbone at h4b

Jul 19, 2003, 11:27 PM

Post #3 of 3 (950 views)

Permalink

I'm fine with that for now. I watch VCDs all the time. The card has an mpeg1
encoder in it, it can't be that bad. If nothing else I'd like something I
could play in windows (sorry if that hurt anyone's ears) easily without trying
to load a mpeg2 codec. Anyway... would still like to know if it's possible..

joshua

On Sat, Jul 19, 2003 at 11:18:13PM -0400, Will Dormann wrote:
> At 06:47 PM 7/19/2003 -0700, you wrote:
> >I'd like my pvr-250 to encode and output to a file mpeg1 and not mpeg2. Is
> >there a way to do this with the ivtv drivers? I tried test_ioctl -c
> >stream_type=2, and the file it outputs appears to be mpeg1 but the image is
> >very messed up. Are there other special control settings I need to do? I
> >don't really want real high quality for my recordings and I would like to be
> >able to burn them straight to VCD (not SVCD). Just FYI standard mpeg2 works
> >file.
>
>
> Don't have an answer for you, but I can say that recording directly to
> VCD-compliant MPEG1 would probably be a bad idea. The quality will likely
> be quite horrible.
>
> You'd be much better off recording to MPEG2 and transcoding to VCD.
>
> -WD
> _______________________________________________
> mythtv-users mailing list
> mythtv-users@snowman.net
> http://lists.snowman.net/cgi-bin/mailman/listinfo/mythtv-users

--

*<|:oþ
"Beware the Jabberwock, my son!
The jaws that bite, the claws that catch!
Beware the Jubjub bird, and shun
The frumious Bandersnatch!"
_______________________________________________
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