/*
  * Copyright (c) 2011 Reinhard Tartler
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
 
 /**
  * @file
  * @example libavformat/metadata-example.c
  * Shows how the metadata API can be used in application programs.
  */
 
 #include <stdio.h>
 
 #include <libavformat/avformat.h>
 #include <libavutil/dict.h>
 
 int main (int argc, char **argv)
 {
     AVFormatContext *fmt_ctx = NULL;
     AVDictionaryEntry *tag = NULL;
     int ret;
 
     if (argc != 2) {
         printf("usage: %s <input_file>\n"
                "example program to demonstrate the use of the libavformat metadata API.\n"
                "\n", argv[0]);
         return 1;
     }
 
     av_register_all();
     if ((ret = avformat_open_input(&fmt_ctx, argv[1], NULL, NULL)))
         return ret;
 
     while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
         printf("%s=%s\n", tag->key, tag->value);
 
     avformat_free_context(fmt_ctx);
     return 0;
 }