lavfi/drawutils: make ff_draw_color() accept a const rgba map
[ffmpeg.git] / libavfilter / filtfmts.c
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 <stdio.h>
22
23 #include "libavformat/avformat.h"
24 #include "libavutil/pixdesc.h"
25 #include "libavutil/samplefmt.h"
26 #include "libavfilter/avfilter.h"
27 #include "libavfilter/formats.h"
28
29 #undef fprintf
30 #undef printf
31
32 static void print_formats(AVFilterContext *filter_ctx)
33 {
34     int i, j;
35
36 #define PRINT_FMTS(inout, outin, INOUT)                                 \
37     for (i = 0; i < filter_ctx->inout##put_count; i++) {                     \
38         if (filter_ctx->inout##puts[i]->type == AVMEDIA_TYPE_VIDEO) {   \
39             AVFilterFormats *fmts =                                     \
40                 filter_ctx->inout##puts[i]->outin##_formats;            \
41             for (j = 0; j < fmts->format_count; j++)                    \
42                 if(av_get_pix_fmt_name(fmts->formats[j]))               \
43                 printf(#INOUT "PUT[%d] %s: fmt:%s\n",                   \
44                        i, filter_ctx->filter->inout##puts[i].name,      \
45                        av_get_pix_fmt_name(fmts->formats[j]));          \
46         } else if (filter_ctx->inout##puts[i]->type == AVMEDIA_TYPE_AUDIO) { \
47             AVFilterFormats *fmts;                                      \
48                                                                         \
49             fmts = filter_ctx->inout##puts[i]->outin##_formats;         \
50             for (j = 0; j < fmts->format_count; j++)                    \
51                 printf(#INOUT "PUT[%d] %s: fmt:%s\n",                   \
52                        i, filter_ctx->filter->inout##puts[i].name,      \
53                        av_get_sample_fmt_name(fmts->formats[j]));       \
54                                                                         \
55             fmts = filter_ctx->inout##puts[i]->outin##_channel_layouts; \
56             for (j = 0; j < fmts->format_count; j++) {                  \
57                 char buf[256];                                          \
58                 av_get_channel_layout_string(buf, sizeof(buf), -1,      \
59                                              fmts->formats[j]);         \
60                 printf(#INOUT "PUT[%d] %s: chlayout:%s\n",              \
61                        i, filter_ctx->filter->inout##puts[i].name, buf); \
62             }                                                           \
63         }                                                               \
64     }                                                                   \
65
66     PRINT_FMTS(in,  out, IN);
67     PRINT_FMTS(out, in,  OUT);
68 }
69
70 int main(int argc, char **argv)
71 {
72     AVFilter *filter;
73     AVFilterContext *filter_ctx;
74     const char *filter_name;
75     const char *filter_args = NULL;
76     int i;
77
78     av_log_set_level(AV_LOG_DEBUG);
79
80     if (!argv[1]) {
81         fprintf(stderr, "Missing filter name as argument\n");
82         return 1;
83     }
84
85     filter_name = argv[1];
86     if (argv[2])
87         filter_args = argv[2];
88
89     avfilter_register_all();
90
91     /* get a corresponding filter and open it */
92     if (!(filter = avfilter_get_by_name(filter_name))) {
93         fprintf(stderr, "Unrecognized filter with name '%s'\n", filter_name);
94         return 1;
95     }
96
97     if (avfilter_open(&filter_ctx, filter, NULL) < 0) {
98         fprintf(stderr, "Impossible to open filter with name '%s'\n",
99                 filter_name);
100         return 1;
101     }
102     if (avfilter_init_filter(filter_ctx, filter_args, NULL) < 0) {
103         fprintf(stderr, "Impossible to init filter '%s' with arguments '%s'\n",
104                 filter_name, filter_args);
105         return 1;
106     }
107
108     /* create a link for each of the input pads */
109     for (i = 0; i < filter_ctx->input_count; i++) {
110         AVFilterLink *link = av_mallocz(sizeof(AVFilterLink));
111         link->type = filter_ctx->filter->inputs[i].type;
112         filter_ctx->inputs[i] = link;
113     }
114     for (i = 0; i < filter_ctx->output_count; i++) {
115         AVFilterLink *link = av_mallocz(sizeof(AVFilterLink));
116         link->type = filter_ctx->filter->outputs[i].type;
117         filter_ctx->outputs[i] = link;
118     }
119
120     if (filter->query_formats)
121         filter->query_formats(filter_ctx);
122     else
123         ff_default_query_formats(filter_ctx);
124
125     print_formats(filter_ctx);
126
127     avfilter_free(filter_ctx);
128     fflush(stdout);
129     return 0;
130 }