avfilter/vf_pullup: fix gray8
[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 static void print_formats(AVFilterContext *filter_ctx)
30 {
31     int i, j;
32
33 #define PRINT_FMTS(inout, outin, INOUT)                                 \
34     for (i = 0; i < filter_ctx->nb_##inout##puts; i++) {                     \
35         if (filter_ctx->inout##puts[i]->type == AVMEDIA_TYPE_VIDEO) {   \
36             AVFilterFormats *fmts =                                     \
37                 filter_ctx->inout##puts[i]->outin##_formats;            \
38             for (j = 0; j < fmts->nb_formats; j++)                    \
39                 if(av_get_pix_fmt_name(fmts->formats[j]))               \
40                 printf(#INOUT "PUT[%d] %s: fmt:%s\n",                   \
41                        i, filter_ctx->filter->inout##puts[i].name,      \
42                        av_get_pix_fmt_name(fmts->formats[j]));          \
43         } else if (filter_ctx->inout##puts[i]->type == AVMEDIA_TYPE_AUDIO) { \
44             AVFilterFormats *fmts;                                      \
45             AVFilterChannelLayouts *layouts;                            \
46                                                                         \
47             fmts = filter_ctx->inout##puts[i]->outin##_formats;         \
48             for (j = 0; j < fmts->nb_formats; j++)                    \
49                 printf(#INOUT "PUT[%d] %s: fmt:%s\n",                   \
50                        i, filter_ctx->filter->inout##puts[i].name,      \
51                        av_get_sample_fmt_name(fmts->formats[j]));       \
52                                                                         \
53             layouts = filter_ctx->inout##puts[i]->outin##_channel_layouts; \
54             for (j = 0; j < layouts->nb_channel_layouts; j++) {                  \
55                 char buf[256];                                          \
56                 av_get_channel_layout_string(buf, sizeof(buf), -1,      \
57                                              layouts->channel_layouts[j]);         \
58                 printf(#INOUT "PUT[%d] %s: chlayout:%s\n",              \
59                        i, filter_ctx->filter->inout##puts[i].name, buf); \
60             }                                                           \
61         }                                                               \
62     }                                                                   \
63
64     PRINT_FMTS(in,  out, IN);
65     PRINT_FMTS(out, in,  OUT);
66 }
67
68 int main(int argc, char **argv)
69 {
70     AVFilter *filter;
71     AVFilterContext *filter_ctx;
72     AVFilterGraph *graph_ctx;
73     const char *filter_name;
74     const char *filter_args = NULL;
75     int i;
76
77     av_log_set_level(AV_LOG_DEBUG);
78
79     if (argc < 2) {
80         fprintf(stderr, "Missing filter name as argument\n");
81         return 1;
82     }
83
84     filter_name = argv[1];
85     if (argc > 2)
86         filter_args = argv[2];
87
88     /* allocate graph */
89     graph_ctx = avfilter_graph_alloc();
90     if (!graph_ctx)
91         return 1;
92
93     avfilter_register_all();
94
95     /* get a corresponding filter and open it */
96     if (!(filter = avfilter_get_by_name(filter_name))) {
97         fprintf(stderr, "Unrecognized filter with name '%s'\n", filter_name);
98         return 1;
99     }
100
101     /* open filter and add it to the graph */
102     if (!(filter_ctx = avfilter_graph_alloc_filter(graph_ctx, filter, filter_name))) {
103         fprintf(stderr, "Impossible to open filter with name '%s'\n",
104                 filter_name);
105         return 1;
106     }
107     if (avfilter_init_str(filter_ctx, filter_args) < 0) {
108         fprintf(stderr, "Impossible to init filter '%s' with arguments '%s'\n",
109                 filter_name, filter_args);
110         return 1;
111     }
112
113     /* create a link for each of the input pads */
114     for (i = 0; i < filter_ctx->nb_inputs; i++) {
115         AVFilterLink *link = av_mallocz(sizeof(AVFilterLink));
116         link->type = filter_ctx->filter->inputs[i].type;
117         filter_ctx->inputs[i] = link;
118     }
119     for (i = 0; i < filter_ctx->nb_outputs; i++) {
120         AVFilterLink *link = av_mallocz(sizeof(AVFilterLink));
121         link->type = filter_ctx->filter->outputs[i].type;
122         filter_ctx->outputs[i] = link;
123     }
124
125     if (filter->query_formats)
126         filter->query_formats(filter_ctx);
127     else
128         ff_default_query_formats(filter_ctx);
129
130     print_formats(filter_ctx);
131
132     avfilter_free(filter_ctx);
133     avfilter_graph_free(&graph_ctx);
134     fflush(stdout);
135     return 0;
136 }