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check if argument of initial-value is a number

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fossedihelm 2017-12-06 14:47:46 +01:00
parent 8313da522b
commit 1dc99e3a15
2 changed files with 10 additions and 6 deletions
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3
README.md
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@ -43,7 +43,7 @@ cargo build --release
A sample program implementing a headless Spotify Connect receiver is provided. A sample program implementing a headless Spotify Connect receiver is provided.
Once you've built *librespot*, run it using : Once you've built *librespot*, run it using :
```shell ```shell
target/release/librespot --username USERNAME --cache CACHEDIR --name DEVICENAME target/release/librespot --username USERNAME --cache CACHEDIR --name DEVICENAME [--initial-volume 20]
``` ```
## Discovery mode ## Discovery mode
@ -108,4 +108,3 @@ https://gitter.im/sashahilton00/spotify-connect-resources
## License ## License
Everything in this repository is licensed under the MIT license. Everything in this repository is licensed under the MIT license.

7
src/main.rs
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@ -101,7 +101,7 @@ fn setup(args: &[String]) -> Setup {
.optopt("", "backend", "Audio backend to use. Use '?' to list options", "BACKEND") .optopt("", "backend", "Audio backend to use. Use '?' to list options", "BACKEND")
.optopt("", "device", "Audio device to use. Use '?' to list options", "DEVICE") .optopt("", "device", "Audio device to use. Use '?' to list options", "DEVICE")
.optopt("", "mixer", "Mixer to use", "MIXER") .optopt("", "mixer", "Mixer to use", "MIXER")
.optopt("", "initial-volume", "Initial volume in %, once connected", "VOLUME"); .optopt("", "initial-volume", "Initial volume in %, once connected (must be from 0 to 100)", "VOLUME");
let matches = match opts.parse(&args[1..]) { let matches = match opts.parse(&args[1..]) {
Ok(m) => m, Ok(m) => m,
@ -136,8 +136,13 @@ fn setup(args: &[String]) -> Setup {
.expect("Invalid mixer"); .expect("Invalid mixer");
let initial_volume; let initial_volume;
if matches.opt_present("initial-volume"){ if matches.opt_present("initial-volume"){
if matches.opt_str("initial-volume").unwrap().parse::<i32>().is_ok(){
initial_volume = matches.opt_str("initial-volume").unwrap().parse::<i32>().unwrap()* 0xFFFF as i32 / 100 ; initial_volume = matches.opt_str("initial-volume").unwrap().parse::<i32>().unwrap()* 0xFFFF as i32 / 100 ;
} }
else {
initial_volume = 0x8000 as i32;
}
}
else{ else{
initial_volume = 0x8000 as i32; initial_volume = 0x8000 as i32;
} }