mirror of
https://github.com/Belphemur/CBZOptimizer.git
synced 2026-07-21 10:55:40 +02:00
164dc577b9
BREAKING CHANGE: Complete refactoring of the conversion pipeline. - Replace in-memory Page/PageContainer with disk-based PageFile struct - Extract archives to temp directory instead of loading into memory - Use cwebp InputFile/OutputFile for zero-copy file-to-file conversion - Use cwebp -crop for splitting (no Go-side image decode needed) - Check if already converted before extracting (fast pre-check) - Remove oliamb/cutter dependency (replaced by cwebp -crop) - Remove page_container.go (no longer needed) - Add comprehensive tests with improved coverage Co-authored-by: Belphemur <197810+Belphemur@users.noreply.github.com>
58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
package webp
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import (
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"fmt"
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"strings"
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"sync"
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"github.com/belphemur/go-webpbin/v2"
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)
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const libwebpVersion = "1.6.0"
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var config = webpbin.NewConfig()
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var prepareMutex sync.Mutex
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func init() {
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config.SetLibVersion(libwebpVersion)
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}
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func PrepareEncoder() error {
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prepareMutex.Lock()
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defer prepareMutex.Unlock()
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container := webpbin.NewCWebP(config)
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version, err := container.Version()
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if err != nil {
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return err
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}
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if !strings.HasPrefix(version, libwebpVersion) {
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return fmt.Errorf("unexpected webp version: got %s, want %s", version, libwebpVersion)
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}
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return nil
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}
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// EncodeFile converts an image file directly to WebP using cwebp.
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// This is a zero-copy operation: no image data is loaded into Go memory.
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func EncodeFile(inputPath string, outputPath string, quality uint) error {
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return webpbin.NewCWebP(config).
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Quality(quality).
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InputFile(inputPath).
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OutputFile(outputPath).
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Run()
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}
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// EncodeFileWithCrop converts a cropped region of an image file to WebP.
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// Uses cwebp's native -crop flag — no Go-side image decode needed.
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func EncodeFileWithCrop(inputPath string, outputPath string, quality uint, x, y, width, height int) error {
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return webpbin.NewCWebP(config).
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Quality(quality).
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Crop(x, y, width, height).
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InputFile(inputPath).
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OutputFile(outputPath).
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Run()
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}
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