diff options
| author | Pav Lucistnik <pav@FreeBSD.org> | 2004-03-26 09:03:07 +0000 |
|---|---|---|
| committer | Pav Lucistnik <pav@FreeBSD.org> | 2004-03-26 09:03:07 +0000 |
| commit | 52c7725b318e9a50e75db7afcdfb157af86c9c2e (patch) | |
| tree | 06e5cbd4fd8506960ec8ca472afa3b2bd1104a0c /multimedia/Makefile | |
| parent | mark FORBIDDEN: http://people.freebsd.org/~eik/portaudit/c551ae17-7f00-11d8-8... (diff) | |
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>
Notes
Notes:
svn path=/head/; revision=105310
Diffstat (limited to 'multimedia/Makefile')
| -rw-r--r-- | multimedia/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/multimedia/Makefile b/multimedia/Makefile index 4b7e6d398f4f..17eda078f804 100644 --- a/multimedia/Makefile +++ b/multimedia/Makefile @@ -123,5 +123,6 @@ SUBDIR += xmps-win32-plugin SUBDIR += xtheater SUBDIR += xvid + SUBDIR += y4mscaler .include <bsd.port.subdir.mk> |