add better logging for bad buffer size

l1npengtul · Dec 27, 2024 · 72dba49 · 72dba49
1 parent 074f3da
commit 72dba49
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Showing 2 changed files with 5 additions and 3 deletions.
diff --git a/examples/threaded-capture/src/main.rs b/examples/threaded-capture/src/main.rs
@@ -32,7 +32,7 @@ fn main() {
 
     let format = RequestedFormat::new::<RgbFormat>(RequestedFormatType::AbsoluteHighestFrameRate);
 
-    let first_camera = cameras.first().unwrap();
+    let first_camera = cameras.get(1).unwrap();
 
     let mut threaded = CallbackCamera::new(first_camera.index().clone(), format, |buffer| {
         let image = buffer.decode_image::<RgbAFormat>().unwrap();

diff --git a/nokhwa-core/src/types.rs b/nokhwa-core/src/types.rs
@@ -1759,11 +1759,13 @@ pub fn buf_nv12_to_rgb(
         });
     }
 
-    if data.len() != ((resolution.width() * resolution.height() * 3) / 2) as usize {
+    let expected_len = ((resolution.width() * resolution.height() * 3) / 2) as usize;
+
+    if data.len() != expected_len {
         return Err(NokhwaError::ProcessFrameError {
             src: FrameFormat::NV12,
             destination: "RGB".to_string(),
-            error: "bad input buffer size".to_string(),
+            error: format!("bad input buffer size, expected {} but got {}", expected_len, data.len()),
         });
     }