diff --git a/src/input.zig b/src/input.zig
index cf90f8e..3014ebb 100644
--- a/src/input.zig
+++ b/src/input.zig
@@ -27,6 +27,7 @@ fn read_lum(f: std.fs.File, source_buff: [][][4]util.Block, target_buff: [][][4]
                     try queue.prepend(util.Job{
                         .source = &source_buff[idxs.@"0"][idxs.@"1"][idxs.@"2"],
                         .target = &target_buff[idxs.@"0"][idxs.@"1"][idxs.@"2"],
+                        .is_lum = true,
                     });
                 }
             }
@@ -49,6 +50,7 @@ fn read_chrom(f: std.fs.File, source_buff: [][]util.Block, target_buff: [][]util
                     try queue.prepend(util.Job{
                         .source = &source_buff[i][j],
                         .target = &target_buff[i][j],
+                        .is_lum = false,
                     });
                 }
             }
@@ -60,5 +62,5 @@ pub fn main_loop(f: std.fs.File, buffs: util.Buffers, thread_mgr: threads.Thread
     try read_lum(f, buffs.Y, buffs.Y_quant, buffs.input_buff, thread_mgr.queue_wrp.queue);
     try read_chrom(f, buffs.U, buffs.U_quant, buffs.input_buff[0 .. buffs.input_buff.len / 2], thread_mgr.queue_wrp.queue);
     try read_chrom(f, buffs.V, buffs.V_quant, buffs.input_buff[0 .. buffs.input_buff.len / 2], thread_mgr.queue_wrp.queue);
-    while (thread_mgr.signals.processed.load(.Acquire) != buffs.num_blocks) {}
+    while (thread_mgr.signals.processed.load(.Acquire) != buffs.num_blocks) : (std.time.sleep(1)) {}
 }