static int analyze(const uint8_t *buf, int size, int packet_size, int *index) { int stat[TS_MAX_PACKET_SIZE]; int i; int x = 0; int best_score = 0; memset(stat, 0, packet_size * sizeof(int)); for (x = i = 0; i < size - 3; i++) { if (buf[i] == 0x47 && !(buf[i + 1] & 0x80) && (buf[i + 3] & 0x30)) { stat[x]++; if (stat[x] > best_score) { best_score = stat[x]; if (index) *index = x; } } x++; if (x == packet_size) x = 0; } return best_score; }