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avdevice/decklink_dec: Used av_parity instead of duplicated function

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Karthick J 2017-09-29 09:00:55 +05:30 committed by Carl Eugen Hoyos
parent 54ce880a46
commit 9e271e3fa3
1 changed files with 1 additions and 9 deletions
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10
libavdevice/decklink_dec.cpp
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@ -106,14 +106,6 @@ static int get_vanc_line_idx(BMDDisplayMode mode)
return i - 1;
}
static inline uint16_t parity (uint16_t x)
{
uint16_t i;
for (i = 4 * sizeof (x); i > 0; i /= 2)
x ^= x >> i;
return x & 1;
}
static inline void clear_parity_bits(uint16_t *buf, int len) {
int i;
for (i = 0; i < len; i++)
@ -126,7 +118,7 @@ static int check_vanc_parity_checksum(uint16_t *buf, int len, uint16_t checksum)
for (i = 3; i < len - 1; i++) {
uint16_t v = buf[i];
int np = v >> 8;
int p = parity(v & 0xff);
int p = av_parity(v & 0xff);
if ((!!p ^ !!(v & 0x100)) || (np != 1 && np != 2)) {
// Parity check failed
return -1;