00001 /* 00002 * Copyright (c) 2007 Bobby Bingham 00003 * 00004 * This file is part of FFmpeg. 00005 * 00006 * FFmpeg is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * FFmpeg is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with FFmpeg; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00026 #include "avfilter.h" 00027 00028 static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref) 00029 { 00030 avfilter_start_frame(inlink->dst->outputs[0], 00031 avfilter_ref_buffer(picref, ~AV_PERM_WRITE)); 00032 avfilter_start_frame(inlink->dst->outputs[1], 00033 avfilter_ref_buffer(picref, ~AV_PERM_WRITE)); 00034 } 00035 00036 static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir) 00037 { 00038 avfilter_draw_slice(inlink->dst->outputs[0], y, h, slice_dir); 00039 avfilter_draw_slice(inlink->dst->outputs[1], y, h, slice_dir); 00040 } 00041 00042 static void end_frame(AVFilterLink *inlink) 00043 { 00044 avfilter_end_frame(inlink->dst->outputs[0]); 00045 avfilter_end_frame(inlink->dst->outputs[1]); 00046 00047 avfilter_unref_buffer(inlink->cur_buf); 00048 } 00049 00050 AVFilter avfilter_vf_split = { 00051 .name = "split", 00052 .description = NULL_IF_CONFIG_SMALL("Pass on the input to two outputs."), 00053 00054 .inputs = (const AVFilterPad[]) {{ .name = "default", 00055 .type = AVMEDIA_TYPE_VIDEO, 00056 .get_video_buffer= avfilter_null_get_video_buffer, 00057 .start_frame = start_frame, 00058 .draw_slice = draw_slice, 00059 .end_frame = end_frame, }, 00060 { .name = NULL}}, 00061 .outputs = (const AVFilterPad[]) {{ .name = "output1", 00062 .type = AVMEDIA_TYPE_VIDEO, }, 00063 { .name = "output2", 00064 .type = AVMEDIA_TYPE_VIDEO, }, 00065 { .name = NULL}}, 00066 };