perf(movie): Add default buffer size to decrease the memory cost of l…

…oading a movie
gabe565 · Sep 3, 2024 · c2f82f2 · c2f82f2
1 parent 6588c85
commit c2f82f2
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/internal/movie/file.go b/internal/movie/file.go
@@ -16,11 +16,14 @@ import (
 )
 
 func (m *Movie) LoadFile(path string, src io.Reader, speed float64) error {
+	const defaultWidth, defaultHeight = 67, 13
+
 	m.Filename = filepath.Base(path)
 
 	m.Frames = make([]Frame, 0, 2000)
 	var f Frame
 	var buf bytes.Buffer
+	buf.Grow(defaultWidth * defaultHeight)
 	scanner := bufio.NewScanner(src)
 
 	// Build part of every frame, excluding progress bar and bottom padding