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refactor(encoder): add logging and refactor resizeImage function

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wood chen 2024-10-23 03:30:56 +08:00
parent 2a61cc9247
commit d17cfc7a3c
1 changed files with 58 additions and 38 deletions
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96
encoder/process.go
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@ -19,92 +19,112 @@ func resizeImage(img *vips.ImageRef, extraParams config.ExtraParams) error {
imgHeightWidthRatio := float32(imageHeight) / float32(imageWidth)
//这里我们有宽度、高度和 max_width、max_height
//两对不能同时使用
//max_height 和 max_width 用于确保将更大的图像调整为 max_height 和 max_width
//例如，max_width=200,max_height=100 的 500x500px 图像将调整为 100x100
//而较小的图像则保持不变
//如果两者都使用，我们将使用宽度和高度
log.Infof("开始调整图像大小。原始尺寸: %dx%d, 比例: %.2f", imageWidth, imageHeight, imgHeightWidthRatio)
log.Infof("请求的参数: MaxWidth=%d, MaxHeight=%d, Width=%d, Height=%d",
extraParams.MaxWidth, extraParams.MaxHeight, extraParams.Width, extraParams.Height)
if extraParams.MaxHeight > 0 && extraParams.MaxWidth > 0 {
// If any of it exceeds
if imageHeight > extraParams.MaxHeight || imageWidth > extraParams.MaxWidth {
// Check which dimension exceeds most
heightExceedRatio := float32(imageHeight) / float32(extraParams.MaxHeight)
widthExceedRatio := float32(imageWidth) / float32(extraParams.MaxWidth)
// 如果高度超过更多，例如 500x500 -> 200x100 (2.5 < 5)
// 以max_height为新高度，调整大小并保留比例
if heightExceedRatio > widthExceedRatio {
err := img.Thumbnail(int(float32(extraParams.MaxHeight)/imgHeightWidthRatio), extraParams.MaxHeight, 0)
newWidth := int(float32(extraParams.MaxHeight) / imgHeightWidthRatio)
log.Infof("使用MaxHeight调整大小: %dx%d", newWidth, extraParams.MaxHeight)
err := img.Thumbnail(newWidth, extraParams.MaxHeight, 0)
if err != nil {
log.Errorf("调整大小失败: %v", err)
return err
}
} else {
err := img.Thumbnail(extraParams.MaxWidth, int(float32(extraParams.MaxWidth)*imgHeightWidthRatio), 0)
newHeight := int(float32(extraParams.MaxWidth) * imgHeightWidthRatio)
log.Infof("使用MaxWidth调整大小: %dx%d", extraParams.MaxWidth, newHeight)
err := img.Thumbnail(extraParams.MaxWidth, newHeight, 0)
if err != nil {
log.Errorf("调整大小失败: %v", err)
return err
}
}
} else {
log.Info("图像尺寸在MaxWidth和MaxHeight范围内，无需调整")
}
}
if extraParams.MaxHeight > 0 && imageHeight > extraParams.MaxHeight && extraParams.MaxWidth == 0 {
err := img.Thumbnail(int(float32(extraParams.MaxHeight)/imgHeightWidthRatio), extraParams.MaxHeight, 0)
newWidth := int(float32(extraParams.MaxHeight) / imgHeightWidthRatio)
log.Infof("仅使用MaxHeight调整大小: %dx%d", newWidth, extraParams.MaxHeight)
err := img.Thumbnail(newWidth, extraParams.MaxHeight, 0)
if err != nil {
log.Errorf("调整大小失败: %v", err)
return err
}
}
if extraParams.MaxWidth > 0 && imageWidth > extraParams.MaxWidth && extraParams.MaxHeight == 0 {
err := img.Thumbnail(extraParams.MaxWidth, int(float32(extraParams.MaxWidth)*imgHeightWidthRatio), 0)
newHeight := int(float32(extraParams.MaxWidth) * imgHeightWidthRatio)
log.Infof("仅使用MaxWidth调整大小: %dx%d", extraParams.MaxWidth, newHeight)
err := img.Thumbnail(extraParams.MaxWidth, newHeight, 0)
if err != nil {
log.Errorf("调整大小失败: %v", err)
return err
}
}
if extraParams.Width > 0 && extraParams.Height > 0 {
var cropInteresting vips.Interesting
switch config.Config.ExtraParamsCropInteresting {
case "InterestingNone":
cropInteresting = vips.InterestingNone
case "InterestingCentre":
cropInteresting = vips.InterestingCentre
case "InterestingEntropy":
cropInteresting = vips.InterestingEntropy
case "InterestingAttention":
cropInteresting = vips.InterestingAttention
case "InterestingLow":
cropInteresting = vips.InterestingLow
case "InterestingHigh":
cropInteresting = vips.InterestingHigh
case "InterestingAll":
cropInteresting = vips.InterestingAll
default:
cropInteresting = vips.InterestingAttention
}
log.Infof("使用指定的Width和Height调整大小: %dx%d", extraParams.Width, extraParams.Height)
cropInteresting := getCropInteresting()
err := img.Thumbnail(extraParams.Width, extraParams.Height, cropInteresting)
if err != nil {
log.Errorf("调整大小失败: %v", err)
return err
}
}
if extraParams.Width > 0 && extraParams.Height == 0 {
err := img.Thumbnail(extraParams.Width, int(float32(extraParams.Width)*imgHeightWidthRatio), 0)
newHeight := int(float32(extraParams.Width) * imgHeightWidthRatio)
log.Infof("仅使用Width调整大小: %dx%d", extraParams.Width, newHeight)
err := img.Thumbnail(extraParams.Width, newHeight, 0)
if err != nil {
log.Errorf("调整大小失败: %v", err)
return err
}
}
if extraParams.Height > 0 && extraParams.Width == 0 {
err := img.Thumbnail(int(float32(extraParams.Height)/imgHeightWidthRatio), extraParams.Height, 0)
newWidth := int(float32(extraParams.Height) / imgHeightWidthRatio)
log.Infof("仅使用Height调整大小: %dx%d", newWidth, extraParams.Height)
err := img.Thumbnail(newWidth, extraParams.Height, 0)
if err != nil {
log.Errorf("调整大小失败: %v", err)
return err
}
}
log.Infof("图像调整完成。新尺寸: %dx%d", img.Width(), img.Height())
return nil
}
func getCropInteresting() vips.Interesting {
cropInteresting := vips.InterestingAttention
switch config.Config.ExtraParamsCropInteresting {
case "InterestingNone":
cropInteresting = vips.InterestingNone
case "InterestingCentre":
cropInteresting = vips.InterestingCentre
case "InterestingEntropy":
cropInteresting = vips.InterestingEntropy
case "InterestingAttention":
cropInteresting = vips.InterestingAttention
case "InterestingLow":
cropInteresting = vips.InterestingLow
case "InterestingHigh":
cropInteresting = vips.InterestingHigh
case "InterestingAll":
cropInteresting = vips.InterestingAll
}
log.Infof("使用裁剪策略: %s", config.Config.ExtraParamsCropInteresting)
return cropInteresting
}
func ResizeItself(raw, dest string, extraParams config.ExtraParams) {
log.Infof("开始调整图像大小: 源文件=%s, 目标文件=%s", raw, dest)