压缩视频

yzg-util-image/pom.xml

@@ -37,6 +37,12 @@
             <version>1.0.2</version>
         </dependency>
 
+        <dependency>
+            <groupId>net.coobird</groupId>
+            <artifactId>thumbnailator</artifactId>
+            <version>0.4.11</version>
+        </dependency>
+
         <dependency>
             <groupId>com.yanzuoguang</groupId>
             <artifactId>yzg-util-base</artifactId>

yzg-util-image/src/main/java/com/yanzuoguang/util/MediaHelper.java

@@ -2,6 +2,7 @@ package com.yanzuoguang.util;
 
 import com.yanzuoguang.util.log.Log;
 import it.sauronsoftware.jave.*;
+import net.coobird.thumbnailator.Thumbnails;
 import org.bytedeco.javacv.FFmpegFrameGrabber;
 import org.bytedeco.javacv.Frame;
 import org.bytedeco.javacv.Java2DFrameConverter;
@@ -11,6 +12,7 @@ import javax.imageio.ImageIO;
 import javax.imageio.ImageWriteParam;
 import javax.imageio.ImageWriter;
 import javax.imageio.stream.ImageOutputStream;
+import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.awt.image.RenderedImage;
 import java.io.File;
@@ -30,6 +32,7 @@ public class MediaHelper {
     public static final int FIRST_FRAME = 5;
     public static final int DEFAULT_BIT_RATE = 372 * 1000;
     public static final float DEFAULT_SIZE = 1f;
+    public static final float DEFAULT_QUALITY = 1f;
 
     public static final String FORMAT_EMPTY = "";
     public static final String FORMAT_FLV = "flv";
@@ -357,13 +360,32 @@ public class MediaHelper {
      *
      * @param srcFilePath  来源路径
      * @param descFilePath 　目标路径
-     * @param quality      压缩程度，参数quality是取值0~1范围内
+     * @param quality      质量程度，取值0~1范围内
+     * @param size         大小程度，取值0~1范围内
      * @throws IOException
      */
-    public static void compressPic(String srcFilePath, String descFilePath, float quality) throws IOException {
+    public static void compressPicBySystem(String srcFilePath, String descFilePath,
+                                           float quality, float size) throws IOException {
+        // 设置默认值
+        if (size == 0) {
+            size = 1;
+        }
+        if (quality == 0) {
+            quality = 1;
+        }
         File input = new File(srcFilePath);
         BufferedImage image = ImageIO.read(input);
 
+        // 压缩图片大小
+        if (size < 1) {
+            int toWidth = (int) (image.getWidth() * size);
+            int toHeight = (int) (image.getHeight() * size);
+            BufferedImage buffImage = new BufferedImage(toWidth, toHeight, BufferedImage.TYPE_INT_RGB);
+            buffImage.getGraphics().drawImage(image.getScaledInstance(toWidth, toHeight, Image.SCALE_SMOOTH),
+                    0, 0, null);
+            image = buffImage;
+        }
+
         // 先指定Output，才能调用writer.write方法
         File output = new File(descFilePath);
 
@@ -382,6 +404,7 @@ public class MediaHelper {
             if (param.canWriteCompressed()) {
                 // 指定压缩方式为MODE_EXPLICIT
                 param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
+                // param.set
                 // 压缩程度，参数quality是取值0~1范围内
                 param.setCompressionQuality(quality);
             }
@@ -399,4 +422,49 @@ public class MediaHelper {
             }
         }
     }
+
+
+    /**
+     * 压缩图片
+     *
+     * @param srcFilePath  来源路径
+     * @param descFilePath 　目标路径
+     * @throws IOException
+     */
+    public static void compressPic(String srcFilePath, String descFilePath) throws IOException {
+        compressPic(srcFilePath, descFilePath, DEFAULT_QUALITY, DEFAULT_SIZE);
+    }
+
+    /**
+     * 压缩图片
+     *
+     * @param srcFilePath  来源路径
+     * @param descFilePath 　目标路径
+     * @param quality      压缩程度，参数quality是取值0~1范围内
+     * @throws IOException
+     */
+    public static void compressPic(String srcFilePath, String descFilePath, float quality) throws IOException {
+        compressPic(srcFilePath, descFilePath, quality, DEFAULT_SIZE);
+    }
+
+    /**
+     * 压缩图片
+     *
+     * @param srcFilePath  来源路径
+     * @param descFilePath 　目标路径
+     * @param quality      质量程度，取值0~1范围内
+     * @param size         大小程度，取值0~1范围内
+     * @throws IOException
+     */
+    public static void compressPic(String srcFilePath, String descFilePath, float quality, float size) throws IOException {
+        Thumbnails
+                // 来源目录
+                .of(srcFilePath)
+                // 按比例缩小
+                .scale(size)
+                // 质量压缩
+                .outputQuality(quality)
+                // 目标文件
+                .toFile(descFilePath);
+    }
 }

yzg-util-image/src/test/java/helper/TestMediaHelper.java

@@ -39,7 +39,8 @@ public class TestMediaHelper {
             return;
         }
         String file = getFile();
-        MediaHelper.getVideoFirstImage(file, file + ".jpg");
+        String targetFile = getTargetFile();
+        MediaHelper.getVideoFirstImage(file, targetFile + ".jpg");
         isFirstImage = true;
     }
 
@@ -47,10 +48,40 @@ public class TestMediaHelper {
     public void testImageZip() throws IOException {
         // 生成测试图片
         testVideoFirstImage();
-        String file = getFile();
-        MediaHelper.compressPic(file + ".jpg", file + ".zip.jpg", 0.25f);
+
+        List<Runnable> list = new ArrayList<>();
+        for (int i = 0; i < sizes.length; i++) {
+            list.add(testImageZipThread(sizes[i], quotes[i]));
+        }
+        RunnableListAuto.run(list);
+    }
+
+
+    private Runnable testImageZipThread(float size, float quote) {
+        return new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    testImageZip(size, quote);
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        };
     }
 
+    private void testImageZip(float size, float quote) throws IOException {
+        String file = getTargetFile() + ".jpg";
+        String targetFile = getTargetFile();
+        String toName = String.format("%s.size_%d.quot_%d.jpg",
+                targetFile, (int) (size * 100), (int) (quote * 100));
+        String toNameSystem = String.format("%s.size_%d.quot_%d.system.jpg",
+                targetFile, (int) (size * 100), (int) (quote * 100));
+        MediaHelper.compressPic(file, toName, quote, size);
+        MediaHelper.compressPicBySystem(file, toNameSystem, quote, size);
+    }
+
+
     @Test
     public void testVideoZipFlv() {
         List<Runnable> list = new ArrayList<>();