2 * This file is part of FFmpeg.
4 * FFmpeg 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.
9 * FFmpeg 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.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #ifndef AVFILTER_INTERNAL_H
20 #define AVFILTER_INTERNAL_H
24 * internal API functions
28 #include "avfiltergraph.h"
30 void ff_dprintf_ref(void *ctx, AVFilterBufferRef *ref, int end);
32 char *ff_get_ref_perms_string(char *buf, size_t buf_size, int perms);
34 void ff_dprintf_link(void *ctx, AVFilterLink *link, int end);
36 #define FF_DPRINTF_START(ctx, func) dprintf(NULL, "%-16s: ", #func)
39 * Check for the validity of graph.
41 * A graph is considered valid if all its input and output pads are
44 * @return 0 in case of success, a negative value otherwise
46 int ff_avfilter_graph_check_validity(AVFilterGraph *graphctx, AVClass *log_ctx);
49 * Configure all the links of graphctx.
51 * @return 0 in case of success, a negative value otherwise
53 int ff_avfilter_graph_config_links(AVFilterGraph *graphctx, AVClass *log_ctx);
56 * Configure the formats of all the links in the graph.
58 int ff_avfilter_graph_config_formats(AVFilterGraph *graphctx, AVClass *log_ctx);
60 /** default handler for freeing audio/video buffer when there are no references left */
61 void ff_avfilter_default_free_buffer(AVFilterBuffer *buf);
63 #endif /* AVFILTER_INTERNAL_H */