24 lines
833 B
Rust
24 lines
833 B
Rust
use crate::plugin::Plugin;
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use image::ImageFormat;
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use std::io::Cursor;
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pub struct PluginImpl;
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impl Plugin for PluginImpl {
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fn name(&self) -> &'static str { "png_to_jpeg" }
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fn from_formats(&self) -> Vec<&'static str> { vec!["png"] }
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fn to_formats(&self) -> Vec<&'static str> { vec!["jpeg"] }
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fn familiarity(&self) -> u8 { 255 }
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fn quality(&self) -> u8 { 200 } // JPEG has some compression loss
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fn speed(&self) -> u8 { 220 }
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fn convert(&self, input: &[u8], _from: &str, _to: &str) -> Result<Vec<u8>, String> {
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let img = image::load_from_memory_with_format(input, ImageFormat::Png)
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.map_err(|e| e.to_string())?;
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let mut buf = Vec::new();
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img.write_to(&mut Cursor::new(&mut buf), ImageFormat::Jpeg)
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.map_err(|e| e.to_string())?;
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Ok(buf)
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}
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}
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