- 修改默认线程数为cpu核心数

- 修改多线程通信为crossbeam-channel库，增加通讯性能
 - ⬆️ 升级依赖
 - 🔨 优化解密算法，提高解密效率

Cargo.lock

@@ -375,6 +375,15 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "82b8f8f868b36967f9606790d1903570de9ceaf870a7bf9fbbd3016d636a2cb2"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-deque"
 version = "0.8.6"
@@ -540,6 +549,12 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
+[[package]]
+name = "hermit-abi"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc0fef456e4baa96da950455cd02c081ca953b141298e41db3fc7e36b1da849c"
+
 [[package]]
 name = "hex"
 version = "0.4.3"
@@ -811,7 +826,7 @@ checksum = "07dcca13d1740c0a665f77104803360da0bdb3323ecce2e93fa2c959a6d52806"
 
 [[package]]
 name = "ncmmiao"
-version = "2.7.11"
+version = "2.7.20"
 dependencies = [
  "aes",
  "audiotags",
@@ -819,12 +834,13 @@ dependencies = [
  "chrono",
  "clap",
  "colored",
+ "crossbeam-channel",
  "env_logger",
  "image",
  "indicatif",
  "lazy_static",
  "log",
- "rayon",
+ "num_cpus",
  "serde",
  "serde_derive",
  "serde_json",
@@ -903,6 +919,16 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "num_cpus"
+version = "1.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91df4bbde75afed763b708b7eee1e8e7651e02d97f6d5dd763e89367e957b23b"
+dependencies = [
+ "hermit-abi",
+ "libc",
+]
+
 [[package]]
 name = "number_prefix"
 version = "0.4.0"