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