The current mjpegtools (mpeg2enc for example) is dumping core way
too often to be able to do useful media conversions.
This version has been running on my system for two weeks now and
it works much better.
portrevision bump for multimedia/lives multimedia/mjpegtools-yuvfilters
multimedia/y4mscaler since they have LIB_DEPENDS on this port. Other
ports having RUN_DEPENDS on this port are not bumped.
PR: ports/113878
Submitted by: Edwin Groothuis <edwin@mavetju.org>
Approved by: Michael Johnson <ahze@ahze.net>
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>
