Date: Tue, 17 Apr 2001 17:24:57 +0200 (CEST) From: Holger Lamm <holger@eit.uni-kl.de> To: Randall Hopper <aa8vb@nc.rr.com> Cc: multimedia@FreeBSD.ORG Subject: Re: Fxtv: Video grabbing patch Message-ID: <Pine.LNX.4.21.0104171631330.32553-100000@ernie.eit.uni-kl.de> In-Reply-To: <20010414214338.A9798@nc.rr.com>
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On Sat, 14 Apr 2001, Randall Hopper wrote:
> Holger Lamm:
> |
> |I'm just experimenting with video grabbing by fxtv.
> |Seems that mpegaudio doesn't like sox's AIFF output:
> |(apart from another mpegaudio problem I reported to their maintainer):
> See Appendix A of:
> /usr/X11R6/lib/X11/fxtv/README
Aah! Let's try that.
> [mpeg-musicin port] I will say that patch-ab looks pretty fishy:
>
> +CFLAGS += -DTABLES_PATH=\"${PREFIX}/share/mepgaudio/tables\"
> ^^^^
> ? Huh
That is what I called "another problem I reported to their maintainer".
> |The scripts mentions the sox parameters "-s -w" as "Hack to force 16-bit
> |signed (PCM driver)", but it seems that it doesn't work.
> |Ever had problems with that?
>
> How do you mean doesn't work.
That it does not generate output mpeg_musicin likes.
> Did you have to remove -s -w in addition to
> making the WAV change, or does it work with the -s -w in there and the WAV
> change?
I only changed to WAV, yes.
> ...and maybe there's a better MPEG video encoder than mpeg_encode (?).
MPEG I has acceptable quality for low processor speed, although
mpeg_encode is not very quick (ffmpeg captures MPEG-I on the fly,
unfortunately only under Linux.) For offline capture and archieving
purpose, maybe avifile would be nice, but it does not read raw frames..
Holger
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