From: Justin Ruggles <[email protected]> Can be used to set multiple key/value pairs from a string.
Signed-off-by: Luca Barbato <[email protected]> --- Changed the name to be less misleading. doc/APIchanges | 4 ++++ libavutil/dict.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ libavutil/dict.h | 17 +++++++++++++++++ libavutil/version.h | 2 +- 4 files changed, 69 insertions(+), 1 deletion(-) diff --git a/doc/APIchanges b/doc/APIchanges index 3120f7e..e9ef3e2 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -13,6 +13,10 @@ libavutil: 2012-10-22 API changes, most recent first: +2013-xx-xx - xxxxxxx - lavu 52.6.0 - dict.h + Add av_dict_parse_string() to set multiple key/value pairs at once from a + string. + 2013-01-xx - xxxxxxx - lavu 52.5.0 - hmac.h Add AVHMAC. diff --git a/libavutil/dict.c b/libavutil/dict.c index 3c3194c..6532a56 100644 --- a/libavutil/dict.c +++ b/libavutil/dict.c @@ -110,6 +110,53 @@ int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags return 0; } +static int parse_key_value_pair(AVDictionary **pm, const char **buf, + const char *key_val_sep, const char *pairs_sep, + int flags) +{ + char *key = av_get_token(buf, key_val_sep); + char *val = NULL; + int ret; + + if (key && *key && strspn(*buf, key_val_sep)) { + (*buf)++; + val = av_get_token(buf, pairs_sep); + } + + if (key && *key && val && *val) + ret = av_dict_set(pm, key, val, flags); + else + ret = AVERROR(EINVAL); + + av_freep(&key); + av_freep(&val); + + return ret; +} + +int av_dict_parse_string(AVDictionary **pm, const char *str, + const char *key_val_sep, const char *pairs_sep, + int flags) +{ + int ret; + + if (!str) + return 0; + + /* ignore STRDUP flags */ + flags &= ~(AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL); + + while (*str) { + if ((ret = parse_key_value_pair(pm, &str, key_val_sep, pairs_sep, flags)) < 0) + return ret; + + if (*str) + str++; + } + + return 0; +} + void av_dict_free(AVDictionary **pm) { AVDictionary *m = *pm; diff --git a/libavutil/dict.h b/libavutil/dict.h index 492da9a..ab23f26 100644 --- a/libavutil/dict.h +++ b/libavutil/dict.h @@ -107,6 +107,23 @@ int av_dict_count(const AVDictionary *m); int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags); /** + * Parse the key/value pairs list and add to a dictionary. + * + * @param key_val_sep a 0-terminated list of characters used to separate + * key from value + * @param pairs_sep a 0-terminated list of characters used to separate + * two pairs from each other + * @param flags flags to use when adding to dictionary. + * AV_DICT_DONT_STRDUP_KEY and AV_DICT_DONT_STRDUP_VAL + * are ignored since the key/value tokens will always + * be duplicated. + * @return 0 on success, negative AVERROR code on failure + */ +int av_dict_parse_string(AVDictionary **pm, const char *str, + const char *key_val_sep, const char *pairs_sep, + int flags); + +/** * Copy entries from one AVDictionary struct into another. * @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL, * this function will allocate a struct for you and put it in *dst diff --git a/libavutil/version.h b/libavutil/version.h index 68f5752..4c9651f 100644 --- a/libavutil/version.h +++ b/libavutil/version.h @@ -37,7 +37,7 @@ */ #define LIBAVUTIL_VERSION_MAJOR 52 -#define LIBAVUTIL_VERSION_MINOR 5 +#define LIBAVUTIL_VERSION_MINOR 6 #define LIBAVUTIL_VERSION_MICRO 0 #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ -- 1.8.0.2 _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
