| /* |
| * 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 |
| */ |
| |
| #ifndef AVFILTER_INTERNAL_H |
| #define AVFILTER_INTERNAL_H |
| |
| /** |
| * @file |
| * internal API functions |
| */ |
| |
| #include "avfilter.h" |
| #include "avfiltergraph.h" |
| |
| #define POOL_SIZE 32 |
| typedef struct AVFilterPool { |
| AVFilterBufferRef *pic[POOL_SIZE]; |
| int count; |
| } AVFilterPool; |
| |
| /** |
| * Check for the validity of graph. |
| * |
| * A graph is considered valid if all its input and output pads are |
| * connected. |
| * |
| * @return 0 in case of success, a negative value otherwise |
| */ |
| int ff_avfilter_graph_check_validity(AVFilterGraph *graphctx, AVClass *log_ctx); |
| |
| /** |
| * Configure all the links of graphctx. |
| * |
| * @return 0 in case of success, a negative value otherwise |
| */ |
| int ff_avfilter_graph_config_links(AVFilterGraph *graphctx, AVClass *log_ctx); |
| |
| /** |
| * Configure the formats of all the links in the graph. |
| */ |
| int ff_avfilter_graph_config_formats(AVFilterGraph *graphctx, AVClass *log_ctx); |
| |
| /** default handler for freeing audio/video buffer when there are no references left */ |
| void ff_avfilter_default_free_buffer(AVFilterBuffer *buf); |
| |
| /** Tell is a format is contained in the provided list terminated by -1. */ |
| int ff_fmt_is_in(int fmt, const int *fmts); |
| |
| #endif /* AVFILTER_INTERNAL_H */ |