| 1 | /* |
| 2 | * Copyright (c) 2011 Reinhard Tartler |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 5 | * of this software and associated documentation files (the "Software"), to deal |
| 6 | * in the Software without restriction, including without limitation the rights |
| 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 8 | * copies of the Software, and to permit persons to whom the Software is |
| 9 | * furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 20 | * THE SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | /** |
| 24 | * @file |
| 25 | * Shows how the metadata API can be used in application programs. |
| 26 | * @example metadata.c |
| 27 | */ |
| 28 | |
| 29 | #include <stdio.h> |
| 30 | |
| 31 | #include <libavformat/avformat.h> |
| 32 | #include <libavutil/dict.h> |
| 33 | |
| 34 | int main (int argc, char **argv) |
| 35 | { |
| 36 | AVFormatContext *fmt_ctx = NULL; |
| 37 | AVDictionaryEntry *tag = NULL; |
| 38 | int ret; |
| 39 | |
| 40 | if (argc != 2) { |
| 41 | printf("usage: %s <input_file>\n" |
| 42 | "example program to demonstrate the use of the libavformat metadata API.\n" |
| 43 | "\n", argv[0]); |
| 44 | return 1; |
| 45 | } |
| 46 | |
| 47 | av_register_all(); |
| 48 | if ((ret = avformat_open_input(&fmt_ctx, argv[1], NULL, NULL))) |
| 49 | return ret; |
| 50 | |
| 51 | while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) |
| 52 | printf("%s=%s\n", tag->key, tag->value); |
| 53 | |
| 54 | avformat_close_input(&fmt_ctx); |
| 55 | return 0; |
| 56 | } |