core: support DeflateMode option setting

[nihav.git] / nihav-core / src / options.rs

diff --git a/nihav-core/src/options.rs b/nihav-core/src/options.rs
index c2f2d4d0ab2971502a0014cc744962e489001b78..d3d8be889ccceae1ea06b33f27133af522e6d044 100644 (file)
--- a/nihav-core/src/options.rs
+++ b/nihav-core/src/options.rs
@@ -8,6 +8,24 @@
 use std::sync::Arc;
 use std::fmt;
 
+pub use crate::compr::deflate::{DEFLATE_MODE_DESCRIPTION, DEFLATE_OPTION_VALUES, DEFLATE_MODE_NONE, DEFLATE_MODE_FAST, DEFLATE_MODE_BETTER, DEFLATE_MODE_BEST};
+
+/// Common name for keyframe interval option.
+pub const KEYFRAME_OPTION: &str = "key_int";
+/// Common description for keyframe interval option.
+pub const KEYFRAME_OPTION_DESC: &str = "Keyframe interval (0 - automatic)";
+
+/// Common name for frame skipping mode.
+pub const FRAME_SKIP_OPTION: &str = "frame_skip";
+/// Common description for frame skipping mode.
+pub const FRAME_SKIP_OPTION_DESC: &str = "Frame skipping mode";
+/// Frame skipping option value for no skipped frames.
+pub const FRAME_SKIP_OPTION_VAL_NONE: &str = "none";
+/// Frame skipping option value for decoding only keyframes.
+pub const FRAME_SKIP_OPTION_VAL_KEYFRAME: &str = "keyframes";
+/// Frame skipping option value for decoding only intra frames.
+pub const FRAME_SKIP_OPTION_VAL_INTRA: &str = "intra";
+
 /// A list specifying option parsing and validating errors.
 #[derive(Clone,Copy,Debug,PartialEq)]
 pub enum OptionError {
@@ -54,17 +72,17 @@ pub struct NAOptionDefinition {
 
 impl NAOptionDefinition {
     /// Tries to parse input string(s) as an option and returns new option and number of arguments used (1 or 2) on success.
-    pub fn parse(&self, name: &String, value: Option<&String>) -> OptionResult<(NAOption, usize)> {
+    pub fn parse(&self, name: &str, value: Option<&String>) -> OptionResult<(NAOption, usize)> {
         let no_name = "no".to_owned() + self.name;
         let opt_no_name = "--no".to_owned() + self.name;
-        if name == &no_name || name == &opt_no_name {
+        if name == no_name || name == opt_no_name {
             match self.opt_type {
                 NAOptionDefinitionType::Bool => return Ok((NAOption { name: self.name, value: NAValue::Bool(false) }, 1)),
                 _ => return Err(OptionError::InvalidFormat),
             };
         }
         let opt_name = "--".to_owned() + self.name;
-        if self.name != name && &opt_name != name {
+        if self.name != name && opt_name != name {
             return Err(OptionError::WrongName);
         }
         match self.opt_type {
@@ -277,17 +295,17 @@ mod test {
     #[test]
     fn test_option_parsing() {
         let mut def = NAOptionDefinition { name: "option", description: "", opt_type: NAOptionDefinitionType::Float(None, None) };
-        assert_eq!(def.parse(&"--option".to_string(), None), Err(OptionError::ParseError));
-        assert_eq!(def.parse(&"--nooption".to_string(), None), Err(OptionError::InvalidFormat));
-        assert_eq!(def.parse(&"--option".to_string(), Some(&"42".to_string())),
+        assert_eq!(def.parse("--option", None), Err(OptionError::ParseError));
+        assert_eq!(def.parse("--nooption", None), Err(OptionError::InvalidFormat));
+        assert_eq!(def.parse("--option", Some(&"42".to_string())),
                    Ok((NAOption{name:"option",value: NAValue::Float(42.0)}, 2)));
         def.opt_type = NAOptionDefinitionType::Float(None, Some(40.0));
-        assert_eq!(def.parse(&"--option".to_string(), Some(&"42".to_string())),
+        assert_eq!(def.parse("--option", Some(&"42".to_string())),
                    Err(OptionError::InvalidValue));
         let def = NAOptionDefinition { name: "option", description: "", opt_type: NAOptionDefinitionType::Bool };
-        assert_eq!(def.parse(&"option".to_string(), None),
+        assert_eq!(def.parse("option", None),
                    Ok((NAOption{name: "option", value: NAValue::Bool(true) }, 1)));
-        assert_eq!(def.parse(&"nooption".to_string(), None),
+        assert_eq!(def.parse("nooption", None),
                    Ok((NAOption{name: "option", value: NAValue::Bool(false) }, 1)));
     }
 }