Date: Fri, 26 Mar 2004 01:03:08 -0800 (PST) From: Pav Lucistnik <pav@FreeBSD.org> To: ports-committers@FreeBSD.org, cvs-ports@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: ports/multimedia Makefile ports/multimedia/y4mscaler Makefile distinfo pkg-descr Message-ID: <200403260903.i2Q938RW017165@repoman.freebsd.org>
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pav 2004/03/26 01:03:08 PST
FreeBSD ports repository
Modified files:
multimedia Makefile
Added files:
multimedia/y4mscaler Makefile distinfo pkg-descr
Log:
Add y4mscaler, a general-purpose video scaler which operates on YUV4MPEG2
streams, as produced and consumed by the MJPEGtools such as lav2yuv and
mpeg2enc(1).
y4mscaler is meant to be used in a pipeline. Thus, input is from stdin, and
output is to stdout. The essential function of y4mscaler is to scale a
specified "active" region of the input stream (the source) into a specified
active region of the output stream (the target). Pixels outside of the active
region of the source are ignored; pixels outside of the active region of
the target are filled with a background color. The source may additionally
have a matte applied to it; pixels outside the source matte are set to a
separately specified background color.
y4mscaler correctly handles chroma sampling, and thus it can also perform
chroma subsampling conversions. The YUV4MPEG2 stream format currently only
supports 4:2:0 subsampling, although y4mscaler can process 4:1:1, 4:2:2, and
4:4:4 modes by abusing the YUV4MPEG2 format a bit.
Includes preset parameters for popular output streams: DVD, SVCD, VCD, DV,
CVD, and SVCD/VCD still images.
PR: ports/63962
Submitted by: michael johnson <ahze@ahze.net>
Revision Changes Path
1.62 +1 -0 ports/multimedia/Makefile
1.1 +53 -0 ports/multimedia/y4mscaler/Makefile (new)
1.1 +2 -0 ports/multimedia/y4mscaler/distinfo (new)
1.1 +24 -0 ports/multimedia/y4mscaler/pkg-descr (new)
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