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Store strings directly in mov_mdhd_language_map instead of using pointers,

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which has a up to 200% overhead.
Also allows to use memcpy instead of strcpy.

Originally committed as revision 21560 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2010-01-30 22:05:26 +00:00
parent 909f659473
commit 029ddf333c
1 changed files with 13 additions and 13 deletions
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26
libavformat/isom.c
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@ -244,25 +244,25 @@ const AVCodecTag ff_codec_movsubtitle_tags[] = {
/* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
/* http://developer.apple.com/documentation/mac/Text/Text-368.html */
/* deprecated by putting the code as 3*5bit ascii */
static const char * const mov_mdhd_language_map[] = {
static const char mov_mdhd_language_map[][4] = {
/* 0-9 */
"eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
"heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
"urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", NULL,
"fo ", NULL, "rus", "chi", NULL, "iri", "alb", "ron", "ces", "slk",
"urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", "",
"fo ", "", "rus", "chi", "", "iri", "alb", "ron", "ces", "slk",
"slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
/*?*/
"aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", NULL, "pus",
"aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", "", "pus",
"kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
"pa ", "ori", "mal", "kan", "tam", "tel", NULL, "bur", "khm", "lao",
"pa ", "ori", "mal", "kan", "tam", "tel", "", "bur", "khm", "lao",
/* roman? arabic? */
"vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
/*==rundi?*/
NULL, "run", NULL, "mlg", "epo", NULL, NULL, NULL, NULL, NULL,
"", "run", "", "mlg", "epo", "", "", "", "", "",
/* 100 */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "wel", "baq",
"", "", "", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "", "wel", "baq",
"cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
};
@ -271,8 +271,8 @@ int ff_mov_iso639_to_lang(const char lang[4], int mp4)
int i, code = 0;
/* old way, only for QT? */
for (i = 0; !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
if (mov_mdhd_language_map[i] && !strcmp(lang, mov_mdhd_language_map[i]))
for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
if (!strcmp(lang, mov_mdhd_language_map[i]))
return i;
}
/* XXX:can we do that in mov too? */
@ -309,8 +309,8 @@ int ff_mov_lang_to_iso639(unsigned code, char to[4])
/* old fashion apple lang code */
if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
return 0;
if (!mov_mdhd_language_map[code])
if (!mov_mdhd_language_map[code][0])
return 0;
strncpy(to, mov_mdhd_language_map[code], 4);
memcpy(to, mov_mdhd_language_map[code], 4);
return 1;
}