[FFmpeg-devel] [PATCH] lavfi: port MP swapuv filter
Stefano Sabatini
stefasab at gmail.com
Fri Mar 9 17:02:51 CET 2012
On date Thursday 2012-03-08 17:11:51 +0100, Michael Niedermayer encoded:
> On Thu, Mar 08, 2012 at 04:33:09PM +0100, Stefano Sabatini wrote:
> > ---
> > doc/filters.texi | 3 +
> > libavfilter/Makefile | 1 +
> > libavfilter/allfilters.c | 1 +
> > libavfilter/vf_swapuv.c | 97 ++++++++++++++++++++++++++++++++++++++++++++++
> > 4 files changed, 102 insertions(+), 0 deletions(-)
> > create mode 100644 libavfilter/vf_swapuv.c
> >
> > diff --git a/doc/filters.texi b/doc/filters.texi
> > index 2c646cb..b32de63 100644
> > --- a/doc/filters.texi
> > +++ b/doc/filters.texi
> > @@ -2631,6 +2631,9 @@ For example:
> > will create two separate outputs from the same input, one cropped and
> > one padded.
> >
> > + at section swapuv
> > +Swap U & V plane.
> > +
> > @section thumbnail
> > Select the most representative frame in a given sequence of consecutive frames.
> >
> > diff --git a/libavfilter/Makefile b/libavfilter/Makefile
> > index df3a27f..3bdb189 100644
> > --- a/libavfilter/Makefile
> > +++ b/libavfilter/Makefile
> > @@ -87,6 +87,7 @@ OBJS-$(CONFIG_SETTB_FILTER) += vf_settb.o
> > OBJS-$(CONFIG_SHOWINFO_FILTER) += vf_showinfo.o
> > OBJS-$(CONFIG_SLICIFY_FILTER) += vf_slicify.o
> > OBJS-$(CONFIG_SPLIT_FILTER) += vf_split.o
> > +OBJS-$(CONFIG_SWAPUV_FILTER) += vf_swapuv.o
> > OBJS-$(CONFIG_THUMBNAIL_FILTER) += vf_thumbnail.o
> > OBJS-$(CONFIG_TINTERLACE_FILTER) += vf_tinterlace.o
> > OBJS-$(CONFIG_TRANSPOSE_FILTER) += vf_transpose.o
> > diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
> > index f6230be..f0a7f8b 100644
> > --- a/libavfilter/allfilters.c
> > +++ b/libavfilter/allfilters.c
> > @@ -95,6 +95,7 @@ void avfilter_register_all(void)
> > REGISTER_FILTER (SHOWINFO, showinfo, vf);
> > REGISTER_FILTER (SLICIFY, slicify, vf);
> > REGISTER_FILTER (SPLIT, split, vf);
> > + REGISTER_FILTER (SWAPUV, swapuv, vf);
> > REGISTER_FILTER (THUMBNAIL, thumbnail, vf);
> > REGISTER_FILTER (TINTERLACE, tinterlace, vf);
> > REGISTER_FILTER (TRANSPOSE, transpose, vf);
> > diff --git a/libavfilter/vf_swapuv.c b/libavfilter/vf_swapuv.c
> > new file mode 100644
> > index 0000000..cdd4702
> > --- /dev/null
> > +++ b/libavfilter/vf_swapuv.c
> > @@ -0,0 +1,97 @@
> > +/*
> > + * Copyright (c) 2002 Michael Niedermayer <michaelni at gmx.at>
> > + *
> > + * This file is part of FFmpeg.
> > + *
> > + * FFmpeg is free software; you can redistribute it and/or
> > + * modify it under the terms of the GNU Lesser General Public
> > + * License as published by the Free Software Foundation; either
> > + * version 2.1 of the License, or (at your option) any later version.
> > + *
> > + * FFmpeg is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> > + * Lesser General Public License for more details.
> > + *
> > + * You should have received a copy of the GNU Lesser General Public
> > + * License along with FFmpeg; if not, write to the Free Software
> > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> > + */
> > +
> > +/**
> > + * @file
> > + * swap UV filter
> > + */
> > +
> > +#include "avfilter.h"
> > +
> > +static AVFilterBufferRef *get_video_buffer(AVFilterLink *link, int perms,
> > + int w, int h)
> > +{
> > + AVFilterBufferRef *picref =
> > + avfilter_default_get_video_buffer(link, perms, w, h);
> > + uint8_t *tmp;
> > + int tmp2;
> > +
> > + picref->data[0] = picref->data[0];
> > + tmp = picref->data[2]; picref->data[2] = picref->data[1]; picref->data[1] = tmp;
>
> > + picref->data[3] = picref->data[3];
> > +
> > + picref->linesize[0] = picref->linesize[0];
>
> these 2 and a few others look unneeded
Allright.
Note also that I'm relicensing it to LGPL if you're fine with it.
BTW, is OK to nuke the swapuv filter from libavfilter/libmpcodecs?
--
FFmpeg = Fostering Fabulous Mega Peaceful Enhancing Guide
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