修改bug

zqy

10 小时以前 e04b28bc07bf773938c3521bcfc96c70c29fa60f

 zhang-content/src/main/java/com/ruoyi/service/impl/VideoProcessService.java

@@ -233,50 +233,14 @@

        // PNG的压缩级别（0-9，0最快但压缩率低，9最慢但压缩率高）
        if (compressionLevel >= 0) {
            try {
                // 先检查是否支持压缩模式
                if (param.canWriteCompressed()) {
                    param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);

                    // 检查是否支持压缩类型设置
                    String[] compressionTypes = param.getCompressionTypes();
                    if (compressionTypes != null && compressionTypes.length > 0) {
                        // 尝试设置压缩类型
                        String compressionType = compressionTypes[0];
                        for (String type : compressionTypes) {
                            if ("Deflate".equalsIgnoreCase(type) || "PNG".equalsIgnoreCase(type)) {
                                compressionType = type;
                                break;
                            }
                        }
                        param.setCompressionType(compressionType);
                    }

                    // 设置压缩质量（压缩级别转换为0.0-1.0）
                    float quality = Math.max(0.0f, Math.min(1.0f, compressionLevel / 9.0f));
                    param.setCompressionQuality(quality);
                } else {
                    // 如果不支持压缩模式，记录警告并继续使用默认设置
                    log.warn("PNG编码器不支持压缩模式，使用默认设置");
                }
            } catch (UnsupportedOperationException e) {
                // 捕获异常，记录警告，然后使用默认设置继续
                log.warn("设置PNG压缩参数失败: {}，使用默认设置", e.getMessage());
                // 重置参数为默认值
                param = writer.getDefaultWriteParam();
            }
            param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
            param.setCompressionType("Deflate");
            param.setCompressionQuality(Math.max(0.0f, Math.min(1.0f, compressionLevel / 9.0f)));
        }

        try {
            writer.setOutput(new MemoryCacheImageOutputStream(output));
            writer.write(null, new IIOImage(image, null, null), param);
        } catch (Exception e) {
            log.warn("使用ImageWriter写入PNG失败: {}，回退到ImageIO.write", e.getMessage());
            // 回退到简单的ImageIO.write
            ImageIO.write(image, "png", output);
        } finally {
            writer.dispose();
        }
        writer.setOutput(new MemoryCacheImageOutputStream(output));
        writer.write(null, new IIOImage(image, null, null), param);
        writer.dispose();
    }