Prepare for 0.4.0

ldm0 · ldm0 · commit 1d743d9b99fc · 2021-02-26T15:04:55.000+08:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rusty_ffmpeg"
-version = "0.3.1"
+version = "0.4.0"
 authors = ["ldm0 <ldm2993593805@163.com>"]
 edition = "2018"
 
