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lavu/dict: Add new flag to allow multiple equal keys.

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This commit is contained in:
Thilo Borgmann 2016-03-12 14:52:17 +01:00
parent 277408b7f1
commit 4ebf0b109c
2 changed files with 7 additions and 3 deletions
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5
libavutil/dict.c
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@ -70,9 +70,12 @@ int av_dict_set(AVDictionary **pm, const char *key, const char *value,
int flags)
{
AVDictionary *m = *pm;
AVDictionaryEntry *tag = av_dict_get(m, key, NULL, flags);
AVDictionaryEntry *tag = NULL;
char *oldval = NULL, *copy_key = NULL, *copy_value = NULL;
if (!(flags & AV_DICT_MULTIKEY)) {
tag = av_dict_get(m, key, NULL, flags);
}
if (flags & AV_DICT_DONT_STRDUP_KEY)
copy_key = (void *)key;
else

5
libavutil/dict.h
View File

@ -76,6 +76,7 @@
#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. */
#define AV_DICT_MULTIKEY 64 /**< Allow to store several equal keys in the dictionary */
typedef struct AVDictionaryEntry {
char *key;
@ -121,8 +122,8 @@ int av_dict_count(const AVDictionary *m);
*
* @param pm pointer to a pointer to a dictionary struct. If *pm is NULL
* a dictionary struct is allocated and put in *pm.
* @param key entry key to add to *pm (will be av_strduped depending on flags)
* @param value entry value to add to *pm (will be av_strduped depending on flags).
* @param key entry key to add to *pm (will either be av_strduped or added as a new key depending on flags)
* @param value entry value to add to *pm (will be av_strduped or added as a new key depending on flags).
* Passing a NULL value will cause an existing entry to be deleted.
* @return >= 0 on success otherwise an error code <0
*/