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Removed builtin code in Matroska

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This commit is contained in:
Evgeny Shulgin 2017-03-05 20:18:13 +03:00
parent 254ffb3f39
commit 564093e0ec
1 changed files with 7 additions and 5 deletions
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12
src/lib_ccx/matroska.c
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@ -33,11 +33,13 @@ UBYTE mkv_read_byte(FILE* file) {
ULLONG read_vint_length(FILE* file) {
UBYTE ch = mkv_read_byte(file);
#ifdef _WIN32
int cnt = 8 - __lzcnt16(ch);
#else
int cnt = __builtin_clz(ch) - 24 + 1;
#endif
int cnt = 0;
for (int i = 7; i >= 0; i--) {
if ((ch & (1 << i)) != 0) {
cnt = 8 - i;
break;
}
}
ch ^= (1 << (8 - cnt));
ULLONG ret = ch;
for (int i = 1; i < cnt; i++) {