format: add base

src/format/mod.rs

@@ -0,0 +1,22 @@
+use std::ffi::CStr;
+use std::str::from_utf8_unchecked;
+
+use ffi::*;
+
+pub fn version() -> u32 {
+	unsafe {
+		avformat_version()
+	}
+}
+
+pub fn configuration() -> &'static str {
+	unsafe {
+		from_utf8_unchecked(CStr::from_ptr(avformat_configuration()).to_bytes())
+	}
+}
+
+pub fn license() -> &'static str {
+	unsafe {
+		from_utf8_unchecked(CStr::from_ptr(avformat_license()).to_bytes())
+	}
+}