1/* 2 * This file is part of Libav. 3 * 4 * Libav is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2.1 of the License, or (at your option) any later version. 8 * 9 * Libav is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with Libav; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 19#ifndef AVFILTER_INTERNAL_H 20#define AVFILTER_INTERNAL_H 21 22/** 23 * @file 24 * internal API functions 25 */ 26 27#include "avfilter.h" 28#include "avfiltergraph.h" 29 30/** 31 * Check for the validity of graph. 32 * 33 * A graph is considered valid if all its input and output pads are 34 * connected. 35 * 36 * @return 0 in case of success, a negative value otherwise 37 */ 38int ff_avfilter_graph_check_validity(AVFilterGraph *graphctx, AVClass *log_ctx); 39 40/** 41 * Configure all the links of graphctx. 42 * 43 * @return 0 in case of success, a negative value otherwise 44 */ 45int ff_avfilter_graph_config_links(AVFilterGraph *graphctx, AVClass *log_ctx); 46 47/** 48 * Configure the formats of all the links in the graph. 49 */ 50int ff_avfilter_graph_config_formats(AVFilterGraph *graphctx, AVClass *log_ctx); 51 52/** default handler for freeing audio/video buffer when there are no references left */ 53void ff_avfilter_default_free_buffer(AVFilterBuffer *buf); 54 55/** Tell is a format is contained in the provided list terminated by -1. */ 56int ff_fmt_is_in(int fmt, const int *fmts); 57 58#endif /* AVFILTER_INTERNAL_H */ 59