avfilter: indent
[libav.git] / tools / lavfi-showfiltfmts.c
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1/*
2 * Copyright (c) 2009 Stefano Sabatini
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "libavformat/avformat.h"
22#include "libavutil/pixdesc.h"
23#include "libavfilter/avfilter.h"
24
25int main(int argc, char **argv)
26{
27 AVFilter *filter;
28 AVFilterContext *filter_ctx;
29 const char *filter_name;
30 const char *filter_args = NULL;
31 int i, j;
32
33 av_log_set_level(AV_LOG_DEBUG);
34
35 if (!argv[1]) {
36 fprintf(stderr, "Missing filter name as argument\n");
37 return 1;
38 }
39
40 filter_name = argv[1];
41 if (argv[2])
42 filter_args = argv[2];
43
44 avfilter_register_all();
45
46 /* get a corresponding filter and open it */
47 if (!(filter = avfilter_get_by_name(filter_name))) {
48 fprintf(stderr, "Unrecognized filter with name '%s'\n", filter_name);
49 return 1;
50 }
51
52 if (!(filter_ctx = avfilter_open(filter, NULL))) {
53 fprintf(stderr, "Inpossible to open filter with name '%s'\n", filter_name);
54 return 1;
55 }
56 if (avfilter_init_filter(filter_ctx, filter_args, NULL) < 0) {
57 fprintf(stderr, "Impossible to init filter '%s' with arguments '%s'\n", filter_name, filter_args);
58 return 1;
59 }
60
61 /* create a link for each of the input pads */
62 for (i = 0; i < filter_ctx->input_count; i++) {
63 AVFilterLink *link = av_malloc(sizeof(AVFilterLink));
64 filter_ctx->inputs[i] = link;
65 }
66 for (i = 0; i < filter_ctx->output_count; i++) {
67 AVFilterLink *link = av_malloc(sizeof(AVFilterLink));
68 filter_ctx->outputs[i] = link;
69 }
70
71 if (filter->query_formats)
72 filter->query_formats(filter_ctx);
73 else
74 avfilter_default_query_formats(filter_ctx);
75
76 /* print the supported formats in input */
77 for (i = 0; i < filter_ctx->input_count; i++) {
78 AVFilterFormats *fmts = filter_ctx->inputs[i]->out_formats;
e34d5db5 79 for (j = 0; j < fmts->format_count; j++)
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80 printf("INPUT[%d] %s: %s\n",
81 i, filter_ctx->filter->inputs[i].name,
82 av_pix_fmt_descriptors[fmts->formats[j]].name);
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83 }
84
85 /* print the supported formats in output */
86 for (i = 0; i < filter_ctx->output_count; i++) {
87 AVFilterFormats *fmts = filter_ctx->outputs[i]->in_formats;
e34d5db5 88 for (j = 0; j < fmts->format_count; j++)
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89 printf("OUTPUT[%d] %s: %s\n",
90 i, filter_ctx->filter->outputs[i].name,
91 av_pix_fmt_descriptors[fmts->formats[j]].name);
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92 }
93
94 fflush(stdout);
95 return 0;
96}