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movdec: handle 0x7fff langcode as macintosh per the specs

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The correct point that seperates ISO and MAC language codes is 0x400
according to the current QT spec. Old QT specs did not list where this
seperation is but apparently only defined the meaning of the first 137.
This commit is contained in:
Baptiste Coudurier 2012-03-21 14:18:16 -07:00 committed by Vittorio Giovara
parent 8a0bc40545
commit 9e71cc81f3
2 changed files with 2 additions and 2 deletions
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2
libavformat/isom.c
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@ -355,7 +355,7 @@ int ff_mov_lang_to_iso639(unsigned code, char to[4])
memset(to, 0, 4);
/* is it the mangled iso code? */
/* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
if (code > 138) {
if (code >= 0x400 && code != 0x7fff) {
for (i = 2; i >= 0; i--) {
to[i] = 0x60 + (code & 0x1f);
code >>= 5;

2
libavformat/mov.c
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@ -298,7 +298,7 @@ static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (parse)
parse(c, pb, str_size, key);
else {
if (data_type == 3 || (data_type == 0 && langcode < 0x800)) { // MAC Encoded
if (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff))) { // MAC Encoded
mov_read_mac_string(c, pb, str_size, str, sizeof(str));
} else {
avio_read(pb, str, str_size);