diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2011-06-09 06:47:19 +0400 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2011-06-09 06:47:19 +0400 |
commit | f9ecb849ef39bc337d9439b829fe08da5c95cc3d (patch) | |
tree | 761e860a10084d8de4f07815911f697fe11610b9 /libavutil/dict.c | |
parent | 7b8ed831eb8432d202dad16dedc1758b018bb1fa (diff) | |
parent | a71bcd1a7f66e210971c44452dc4cdae7bdbd98a (diff) |
Merge remote-tracking branch 'qatar/master'
* qatar/master:
crypto: Use av_freep instead of av_free
lavf: don't try to free private options if priv_data is NULL.
swscale: fix types of assembly arguments.
swscale: move two macros that are only used once into caller.
swscale: remove unused function.
options: Add missing braces around struct initializer.
mov: Remove leftover crufty debug statement with references to a local file.
dvbsubdec: Fix compilation of debug code.
Remove all uses of now deprecated metadata functions.
Move metadata API from lavf to lavu.
Conflicts:
doc/APIchanges
libavformat/aiffdec.c
libavformat/asfdec.c
libavformat/avformat.h
libavformat/avidec.c
libavformat/cafdec.c
libavformat/matroskaenc.c
libavformat/mov.c
libavformat/mp3enc.c
libavformat/wtv.c
libavutil/avutil.h
libavutil/internal.h
libswscale/swscale.c
libswscale/x86/swscale_template.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavutil/dict.c')
-rw-r--r-- | libavutil/dict.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/libavutil/dict.c b/libavutil/dict.c new file mode 100644 index 0000000000..56f1513d32 --- /dev/null +++ b/libavutil/dict.c @@ -0,0 +1,110 @@ +/* + * copyright (c) 2009 Michael Niedermayer + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <strings.h> +#include "dict.h" +#include "internal.h" +#include "mem.h" + +AVDictionaryEntry * +av_dict_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags) +{ + unsigned int i, j; + + if(!m) + return NULL; + + if(prev) i= prev - m->elems + 1; + else i= 0; + + for(; i<m->count; i++){ + const char *s= m->elems[i].key; + if(flags & AV_DICT_MATCH_CASE) for(j=0; s[j] == key[j] && key[j]; j++); + else for(j=0; toupper(s[j]) == toupper(key[j]) && key[j]; j++); + if(key[j]) + continue; + if(s[j] && !(flags & AV_DICT_IGNORE_SUFFIX)) + continue; + return &m->elems[i]; + } + return NULL; +} + +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); + + if(!m) + m = *pm = av_mallocz(sizeof(*m)); + + if(tag) { + if (flags & AV_DICT_DONT_OVERWRITE) + return 0; + av_free(tag->value); + av_free(tag->key); + *tag = m->elems[--m->count]; + } else { + AVDictionaryEntry *tmp = av_realloc(m->elems, (m->count+1) * sizeof(*m->elems)); + if(tmp) { + m->elems = tmp; + } else + return AVERROR(ENOMEM); + } + if (value) { + if (flags & AV_DICT_DONT_STRDUP_KEY) { + m->elems[m->count].key = key; + } else + m->elems[m->count].key = av_strdup(key ); + if (flags & AV_DICT_DONT_STRDUP_VAL) { + m->elems[m->count].value = value; + } else + m->elems[m->count].value = av_strdup(value); + m->count++; + } + if (!m->count) { + av_free(m->elems); + av_freep(pm); + } + + return 0; +} + +void av_dict_free(AVDictionary **pm) +{ + AVDictionary *m = *pm; + + if (m) { + while(m->count--) { + av_free(m->elems[m->count].key); + av_free(m->elems[m->count].value); + } + av_free(m->elems); + } + av_freep(pm); +} + +void av_dict_copy(AVDictionary **dst, AVDictionary *src, int flags) +{ + AVDictionaryEntry *t = NULL; + + while ((t = av_dict_get(src, "", t, AV_DICT_IGNORE_SUFFIX))) + av_dict_set(dst, t->key, t->value, flags); +} |