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lavu/dict.h: apply various fixes/extensions to doxy

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In particular, document AV_DICT_MATCH_CASE, AV_DICT_IGNORE_SUFFIX, and
extend documentation for av_dict_get().
This commit is contained in:
Stefano Sabatini 2013-11-20 15:08:32 +01:00
parent e2ad4e65a1
commit 320389f88b
1 changed files with 9 additions and 4 deletions
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13
libavutil/dict.h
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@ -64,12 +64,13 @@
*
*/
#define AV_DICT_MATCH_CASE 1
#define AV_DICT_IGNORE_SUFFIX 2
#define AV_DICT_MATCH_CASE 1 /**< Only get an entry with exact-case key match. Only relevant in av_dict_get(). */
#define AV_DICT_IGNORE_SUFFIX 2 /**< Return first entry in a dictionary whose first part corresponds to the search key,
ignoring the suffix of the found key string. Only relevant in av_dict_get(). */
#define AV_DICT_DONT_STRDUP_KEY 4 /**< Take ownership of a key that's been
allocated with av_malloc() and children. */
allocated with av_malloc() or another memory allocation function. */
#define AV_DICT_DONT_STRDUP_VAL 8 /**< Take ownership of a value that's been
allocated with av_malloc() and chilren. */
allocated with av_malloc() or another memory allocation function. */
#define AV_DICT_DONT_OVERWRITE 16 ///< Don't overwrite existing entries.
#define AV_DICT_APPEND 32 /**< If the entry already exists, append to it. Note that no
delimiter is added, the strings are simply concatenated. */
@ -84,8 +85,12 @@ typedef struct AVDictionary AVDictionary;
/**
* Get a dictionary entry with matching key.
*
* To iterate through all the dictionary entries, you can set the matching key
* to the null string "" and set the AV_DICT_IGNORE_SUFFIX flag.
*
* @param prev Set to the previous matching element to find the next.
* If set to NULL the first matching element is returned.
* @param key matching key
* @param flags Allows case as well as suffix-insensitive comparisons.
* @return Found entry or NULL, changing key or value leads to undefined behavior.
*/