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lavfi: add split filter from soc. 

Some fixes by Stefano.
For detailed authorship see SOC repo

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Bobby Bingham 2011-05-21 16:46:11 +02:00 committed by Anton Khirnov
parent ee42716b07
commit 615baa13e4
5 changed files with 70 additions and 1 deletions
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1
Changelog
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@ -44,6 +44,7 @@ easier to use. The changes are:
- Windows Media Image decoder
- LATM muxer
- showinfo filter
- split filter
version 0.7:

1
libavfilter/Makefile
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@ -46,6 +46,7 @@ OBJS-$(CONFIG_SETSAR_FILTER) += vf_aspect.o
OBJS-$(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_TRANSPOSE_FILTER) += vf_transpose.o
OBJS-$(CONFIG_UNSHARP_FILTER) += vf_unsharp.o
OBJS-$(CONFIG_VFLIP_FILTER) += vf_vflip.o

1
libavfilter/allfilters.c
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@ -67,6 +67,7 @@ void avfilter_register_all(void)
REGISTER_FILTER (SETTB, settb, vf);
REGISTER_FILTER (SHOWINFO, showinfo, vf);
REGISTER_FILTER (SLICIFY, slicify, vf);
REGISTER_FILTER (SPLIT, split, vf);
REGISTER_FILTER (TRANSPOSE, transpose, vf);
REGISTER_FILTER (UNSHARP, unsharp, vf);
REGISTER_FILTER (VFLIP, vflip, vf);

2
libavfilter/avfilter.h
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@ -29,7 +29,7 @@
#include "libavutil/rational.h"
#define LIBAVFILTER_VERSION_MAJOR 2
#define LIBAVFILTER_VERSION_MINOR 5
#define LIBAVFILTER_VERSION_MINOR 6
#define LIBAVFILTER_VERSION_MICRO 0
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \

66
libavfilter/vf_split.c Normal file
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@ -0,0 +1,66 @@
/*
* Copyright (c) 2007 Bobby Bingham
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Video splitter
*/
#include "avfilter.h"
static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
{
avfilter_start_frame(inlink->dst->outputs[0],
avfilter_ref_buffer(picref, ~AV_PERM_WRITE));
avfilter_start_frame(inlink->dst->outputs[1],
avfilter_ref_buffer(picref, ~AV_PERM_WRITE));
}
static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
{
avfilter_draw_slice(inlink->dst->outputs[0], y, h, slice_dir);
avfilter_draw_slice(inlink->dst->outputs[1], y, h, slice_dir);
}
static void end_frame(AVFilterLink *inlink)
{
avfilter_end_frame(inlink->dst->outputs[0]);
avfilter_end_frame(inlink->dst->outputs[1]);
avfilter_unref_buffer(inlink->cur_buf);
}
AVFilter avfilter_vf_split = {
.name = "split",
.description = NULL_IF_CONFIG_SMALL("Pass on the input to two outputs."),
.inputs = (AVFilterPad[]) {{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.get_video_buffer= avfilter_null_get_video_buffer,
.start_frame = start_frame,
.draw_slice = draw_slice,
.end_frame = end_frame, },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "output1",
.type = AVMEDIA_TYPE_VIDEO, },
{ .name = "output2",
.type = AVMEDIA_TYPE_VIDEO, },
{ .name = NULL}},
};