limit number of local transcoding tasks

1 files changed, 3 insertions, 3 deletions

diff --git a/transcoder/src/image.rs b/transcoder/src/image.rs
index 06a2f80..3cd9986 100644
--- a/transcoder/src/image.rs
+++ b/transcoder/src/image.rs
@@ -1,3 +1,4 @@
+use crate::LOCAL_TRANSCODING_TASKS;
 use anyhow::Context;
 use image::{imageops::FilterType, ImageFormat};
 use jellybase::{cache::async_cache_file, AssetLocationExt};
@@ -22,11 +23,10 @@ pub async fn transcode(
             &format!("{width} {quality} {speed}"),
         ],
         move |mut output| async move {
+            let _permit = LOCAL_TRANSCODING_TASKS.acquire().await?;
+            info!("encoding {asset:?} (speed={speed}, quality={quality}, width={width})");
             let encoded = tokio::task::spawn_blocking(move || {
                 let original_path = asset.path();
-                info!(
-                    "encoding {original_path:?} (speed={speed}, quality={quality}, width={width})"
-                );
                 // TODO shouldn't be neccessary with guessed format.
                 let file = BufReader::new(File::open(&original_path).context("opening source")?);
                 let mut reader = image::io::Reader::new(file);