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67 lines
2.5 KiB
C
67 lines
2.5 KiB
C
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/*
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* Copyright (c) 2007 Bobby Bingham
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Video splitter
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*/
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#include "avfilter.h"
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static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
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{
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avfilter_start_frame(inlink->dst->outputs[0],
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avfilter_ref_buffer(picref, ~AV_PERM_WRITE));
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avfilter_start_frame(inlink->dst->outputs[1],
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avfilter_ref_buffer(picref, ~AV_PERM_WRITE));
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}
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static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
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{
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avfilter_draw_slice(inlink->dst->outputs[0], y, h, slice_dir);
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avfilter_draw_slice(inlink->dst->outputs[1], y, h, slice_dir);
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}
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static void end_frame(AVFilterLink *inlink)
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{
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avfilter_end_frame(inlink->dst->outputs[0]);
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avfilter_end_frame(inlink->dst->outputs[1]);
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avfilter_unref_buffer(inlink->cur_buf);
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}
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AVFilter avfilter_vf_split = {
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.name = "split",
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.description = NULL_IF_CONFIG_SMALL("Pass on the input to two outputs."),
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.inputs = (AVFilterPad[]) {{ .name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.get_video_buffer= avfilter_null_get_video_buffer,
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.start_frame = start_frame,
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.draw_slice = draw_slice,
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.end_frame = end_frame, },
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{ .name = NULL}},
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.outputs = (AVFilterPad[]) {{ .name = "output1",
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.type = AVMEDIA_TYPE_VIDEO, },
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{ .name = "output2",
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.type = AVMEDIA_TYPE_VIDEO, },
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{ .name = NULL}},
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};
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