视频转换

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

@@ -25,6 +25,7 @@ public class MediaHelper extends ImageHelper {
      * 默认截取视频的中间帧为封面
      */
     public static final int FRAME_INDEX = 3;
+    public static boolean Frame = true;
 
     /**
      * 从视频文件中获取第一张图片
@@ -80,6 +81,9 @@ public class MediaHelper extends ImageHelper {
         if (!target.getParentFile().exists()) {
             target.getParentFile().mkdirs();
         }
+        if (target.exists()) {
+            target.delete();
+        }
 
         FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(fromFile);
         try {
@@ -94,25 +98,34 @@ public class MediaHelper extends ImageHelper {
             FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(
                     toFile,
                     parameter.getVideoWidthFinally(),
-                    parameter.getVideoHeightFinally(),
-                    grabber.getAudioChannels()
+                    parameter.getVideoHeightFinally()
             );
             parameter.init(grabber, recorder);
             try {
                 // 开始转换
-                recorder.start(grabber.getFormatContext());
+                // recorder.start(grabber.getFormatContext());
+                recorder.start();
+                // 转码没有图像
+                if (Frame) {
+                    Frame frame;
+                    while ((frame = grabber.grabFrame(true, true, true, false)) != null) {
+//                        if (grabber.grabPacket() == null) {
+//                            continue;
+//                        }
+                        recorder.record(frame);
+                    }
+                } else {
                     avcodec.AVPacket packet;
-                long dts = 0;
+                    long t1 = System.currentTimeMillis();
                     while ((packet = grabber.grabPacket()) != null) {
-                    long currentDts = packet.dts();
-                    if (currentDts >= dts) {
                         recorder.recordPacket(packet);
                     }
-                    dts = currentDts;
                 }
+
             } finally {
                 recorder.stop();
                 recorder.release();
+                recorder.close();
             }
 
             Log.info(MediaHelper.class, "转换完成...源文件:%s 目标文件:%s 旋转参数:%s ",

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

 package com.yanzuoguang.util;
 
 import com.yanzuoguang.util.helper.StringHelper;
+import com.yanzuoguang.util.log.Log;
 import com.yanzuoguang.util.vo.BaseVo;
 import io.swagger.annotations.ApiModelProperty;
 import org.bytedeco.javacpp.avcodec;
@@ -194,6 +195,7 @@ public class MediaParameter extends BaseVo {
         // 读取音频属性
         this.audioBitRate = StringHelper.getFirst(this.audioBitRate, grabber.getAudioBitrate());
         this.audioCodec = StringHelper.getFirstRun(AV_CODEC_ID_NONE, AV_CODEC_ID_NONE, this.audioCodec, grabber.getAudioCodec());
+        Log.info(MediaParameter.class, "getAudioCodecName:%s", grabber.getAudioCodecName());
         this.audioFrameRate = StringHelper.getFirstRun((double) AV_SAMPLE_FMT_NONE, (double) AV_SAMPLE_FMT_NONE, this.audioFrameRate, grabber.getAudioFrameRate());
 
         // 视频宽度高度
@@ -201,7 +203,8 @@ public class MediaParameter extends BaseVo {
         this.videoHeight = StringHelper.getFirst(this.videoHeight, grabber.getImageHeight());
         // 读取视频格式
         this.videoFormat = StringHelper.getFirst(this.videoFormat, grabber.getFormat());
-        this.videoCodeC = StringHelper.getFirst(this.videoCodeC, grabber.getVideoCodec());
+        this.videoCodeC = StringHelper.getFirstRun(AV_CODEC_ID_NONE, AV_CODEC_ID_NONE, this.videoCodeC, grabber.getVideoCodec());
+        Log.info(MediaParameter.class, "getVideoCodecName:%s", grabber.getVideoCodecName());
         this.videoPixelFormat = StringHelper.getFirstRun(AV_PIX_FMT_NONE, AV_PIX_FMT_NONE, this.videoPixelFormat, grabber.getPixelFormat());
         // 读取视频属性
         this.videoRotate = StringHelper.toDouble(grabber.getVideoMetadata(ROTATE));
@@ -217,16 +220,19 @@ public class MediaParameter extends BaseVo {
     public void init(FFmpegFrameGrabber grabber, FFmpegFrameRecorder recorder) {
         // 设置音频比特率
         recorder.setAudioBitrate(this.getAudioBitRateFinally());
-        recorder.setAudioCodec(this.audioCodec);
+        // recorder.setAudioCodec(this.audioCodec);
         // 设置声道
         recorder.setAudioChannels(grabber.getAudioChannels());
+        // 设置音频属性
+        // recorder.setSampleFormat(grabber.getSampleFormat());
+        // recorder.setSampleRate(grabber.getSampleRate());
 
         // 视频格式
         recorder.setFormat(this.videoFormat);
         // 设置转码视频格式
         recorder.setVideoCodec(this.videoCodeC);
         // 设置像素格式
-        recorder.setPixelFormat(this.videoPixelFormat);
+        // recorder.setPixelFormat(this.videoPixelFormat);
 
         // 设置转码后的视频角度
         recorder.setMetadata(ROTATE, String.valueOf(this.getVideoRotateFinally()));
@@ -234,6 +240,8 @@ public class MediaParameter extends BaseVo {
         recorder.setVideoBitrate(StringHelper.getFirst(this.getVideoBitRateFinally(), this.getAudioBitRateFinally()));
         // 设置帧速率
         recorder.setFrameRate(grabber.getFrameRate());
+        // 帧长度
+        recorder.setTimestamp(grabber.getTimestamp());
     }
 
     public void initZipMp4() {

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

@@ -2,19 +2,17 @@ package helper;
 
 import com.yanzuoguang.util.MediaHelper;
 import com.yanzuoguang.util.MediaParameter;
-import com.yanzuoguang.util.thread.RunnableListAuto;
 import org.junit.Test;
 
 import java.io.File;
 import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
 
 public class TestMediaHelper {
 
     private boolean isFirstImage = false;
     public float[] sizes = new float[]{1f, 0.5f, 1f, 1f, 0.5f, 0.5f};
     public float[] quotes = new float[]{1f, 1f, 0.5f, 0.25f, 0.5f, 0.25f};
+    public String[] fileNames = new String[]{"100M.mp4", "z001594372388232a3017ad69c82a342.MOV", "xuziming.mp4"};
 
 
     private String getFile(String file) {
@@ -35,36 +33,33 @@ public class TestMediaHelper {
     }
 
     @Test
-    public void testConvert() {
-        List<Runnable> list = new ArrayList<>();
+    public void testConvert() throws IOException {
+        for (String fileName : fileNames) {
             for (int i = 0; i < sizes.length; i++) {
-            list.add(testConvertThread(sizes[i], quotes[i]));
+                testConvert(fileName, sizes[i], quotes[i]);
             }
-        RunnableListAuto.run(list);
-    }
-
-    private Runnable testConvertThread(float size, float quote) {
-        return new Runnable() {
-            @Override
-            public void run() {
-                try {
-                    testConvert(size, quote);
-                } catch (IOException e) {
-                    e.printStackTrace();
         }
     }
-        };
+
+    @Test
+    public void testConvertSingle() throws IOException {
+        String fileName = "100M.mp4";
+        // String fileName = "z001594372388232a3017ad69c82a342.MOV";
+        testConvert(fileName, 1, 1);
     }
 
-    private void testConvert(float size, float quote) throws IOException {
-        String file = getFile("100M.mp4");
-        String targetFile = getTargetFile("target/100M.mp4");
+    private void testConvert(String fileName, float size, float quote) throws IOException {
+        String file = getFile(fileName);
+        String targetFile = getTargetFile("target/" + fileName);
+
+
         String toFile = String.format("%s.size_%d.quot_%d.mp4", targetFile, (int) (size * 100), (int) (quote * 100));
 
         MediaParameter parameter = new MediaParameter();
         parameter.setVideoSizeZip(size);
         parameter.setVideoBitRateZip(quote);
+//        parameter.setVideoFrameRate(15);
 
-        MediaHelper.convertVideoMp4(file, toFile, parameter);
+        MediaHelper.convertVideo(file, toFile, parameter);
     }
 }