yading@10: /*
yading@10:  * Copyright (c) 2009 Stefano Sabatini
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #include <stdio.h>
yading@10: 
yading@10: #include "libavformat/avformat.h"
yading@10: #include "libavutil/pixdesc.h"
yading@10: #include "libavutil/samplefmt.h"
yading@10: #include "libavfilter/avfilter.h"
yading@10: #include "libavfilter/formats.h"
yading@10: 
yading@10: static void print_formats(AVFilterContext *filter_ctx)
yading@10: {
yading@10:     int i, j;
yading@10: 
yading@10: #define PRINT_FMTS(inout, outin, INOUT)                                 \
yading@10:     for (i = 0; i < filter_ctx->inout##put_count; i++) {                     \
yading@10:         if (filter_ctx->inout##puts[i]->type == AVMEDIA_TYPE_VIDEO) {   \
yading@10:             AVFilterFormats *fmts =                                     \
yading@10:                 filter_ctx->inout##puts[i]->outin##_formats;            \
yading@10:             for (j = 0; j < fmts->format_count; j++)                    \
yading@10:                 if(av_get_pix_fmt_name(fmts->formats[j]))               \
yading@10:                 printf(#INOUT "PUT[%d] %s: fmt:%s\n",                   \
yading@10:                        i, filter_ctx->filter->inout##puts[i].name,      \
yading@10:                        av_get_pix_fmt_name(fmts->formats[j]));          \
yading@10:         } else if (filter_ctx->inout##puts[i]->type == AVMEDIA_TYPE_AUDIO) { \
yading@10:             AVFilterFormats *fmts;                                      \
yading@10:             AVFilterChannelLayouts *layouts;                            \
yading@10:                                                                         \
yading@10:             fmts = filter_ctx->inout##puts[i]->outin##_formats;         \
yading@10:             for (j = 0; j < fmts->format_count; j++)                    \
yading@10:                 printf(#INOUT "PUT[%d] %s: fmt:%s\n",                   \
yading@10:                        i, filter_ctx->filter->inout##puts[i].name,      \
yading@10:                        av_get_sample_fmt_name(fmts->formats[j]));       \
yading@10:                                                                         \
yading@10:             layouts = filter_ctx->inout##puts[i]->outin##_channel_layouts; \
yading@10:             for (j = 0; j < layouts->nb_channel_layouts; j++) {                  \
yading@10:                 char buf[256];                                          \
yading@10:                 av_get_channel_layout_string(buf, sizeof(buf), -1,      \
yading@10:                                              layouts->channel_layouts[j]);         \
yading@10:                 printf(#INOUT "PUT[%d] %s: chlayout:%s\n",              \
yading@10:                        i, filter_ctx->filter->inout##puts[i].name, buf); \
yading@10:             }                                                           \
yading@10:         }                                                               \
yading@10:     }                                                                   \
yading@10: 
yading@10:     PRINT_FMTS(in,  out, IN);
yading@10:     PRINT_FMTS(out, in,  OUT);
yading@10: }
yading@10: 
yading@10: int main(int argc, char **argv)
yading@10: {
yading@10:     AVFilter *filter;
yading@10:     AVFilterContext *filter_ctx;
yading@10:     const char *filter_name;
yading@10:     const char *filter_args = NULL;
yading@10:     int i;
yading@10: 
yading@10:     av_log_set_level(AV_LOG_DEBUG);
yading@10: 
yading@10:     if (argc < 2) {
yading@10:         fprintf(stderr, "Missing filter name as argument\n");
yading@10:         return 1;
yading@10:     }
yading@10: 
yading@10:     filter_name = argv[1];
yading@10:     if (argc > 2)
yading@10:         filter_args = argv[2];
yading@10: 
yading@10:     avfilter_register_all();
yading@10: 
yading@10:     /* get a corresponding filter and open it */
yading@10:     if (!(filter = avfilter_get_by_name(filter_name))) {
yading@10:         fprintf(stderr, "Unrecognized filter with name '%s'\n", filter_name);
yading@10:         return 1;
yading@10:     }
yading@10: 
yading@10:     if (avfilter_open(&filter_ctx, filter, NULL) < 0) {
yading@10:         fprintf(stderr, "Impossible to open filter with name '%s'\n",
yading@10:                 filter_name);
yading@10:         return 1;
yading@10:     }
yading@10:     if (avfilter_init_str(filter_ctx, filter_args) < 0) {
yading@10:         fprintf(stderr, "Impossible to init filter '%s' with arguments '%s'\n",
yading@10:                 filter_name, filter_args);
yading@10:         return 1;
yading@10:     }
yading@10: 
yading@10:     /* create a link for each of the input pads */
yading@10:     for (i = 0; i < filter_ctx->input_count; i++) {
yading@10:         AVFilterLink *link = av_mallocz(sizeof(AVFilterLink));
yading@10:         link->type = filter_ctx->filter->inputs[i].type;
yading@10:         filter_ctx->inputs[i] = link;
yading@10:     }
yading@10:     for (i = 0; i < filter_ctx->output_count; i++) {
yading@10:         AVFilterLink *link = av_mallocz(sizeof(AVFilterLink));
yading@10:         link->type = filter_ctx->filter->outputs[i].type;
yading@10:         filter_ctx->outputs[i] = link;
yading@10:     }
yading@10: 
yading@10:     if (filter->query_formats)
yading@10:         filter->query_formats(filter_ctx);
yading@10:     else
yading@10:         ff_default_query_formats(filter_ctx);
yading@10: 
yading@10:     print_formats(filter_ctx);
yading@10: 
yading@10:     avfilter_free(filter_ctx);
yading@10:     fflush(stdout);
yading@10:     return 0;
yading@10: }