ws.schild
jave-core
3.0.0
ws.schild
jave-nativebin-win64
3.0.0
ws.schild
jave-nativebin-linux64
3.0.0
picName不要和文件重名;不然报错
import ws.schild.jave.Encoder;
import ws.schild.jave.MultimediaObject;
import ws.schild.jave.encode.AudioAttributes;
import ws.schild.jave.encode.EncodingAttributes;
import ws.schild.jave.encode.VideoAttributes;
import ws.schild.jave.info.AudioInfo;
import ws.schild.jave.info.VideoInfo;
import java.io.File;
import java.math.BigDecimal;
/**
* 视频压缩工具类
*/
public class VideoUtil {
/**
* 传视频File对象(这是一个具体的文件),返回压缩后File对象信息
* @param source
*/
public static File compressionVideo(File source,String picName) {
if(source == null){
return null;
}
String newPath = source.getAbsolutePath().substring(0, source.getAbsolutePath().lastIndexOf(File.separator)).concat(File.separator).concat(picName);
File target = new File(newPath);
try {
MultimediaObject object = new MultimediaObject(source);
// 根据视频大小来判断是否需要进行压缩,
int maxSize = 200;
double mb = Math.ceil(source.length() / 1048576);
int second = (int)object.getInfo().getDuration() / 1000;
BigDecimal bd = new BigDecimal(String.format("%.4f", mb / second));
System.out.println("开始压缩视频了--> 视频每秒平均 "+ bd +" MB ");
// 视频 > 200MB, 或者每秒 > 0.5 MB 才做压缩
boolean temp = mb > maxSize || bd.compareTo(new BigDecimal(0.5)) > 0;
if(temp){
long time = System.currentTimeMillis();
// 视频压缩参数
int maxAudioBitRate = 128000;
int maxSamplingRate = 44100;
int maxVideoBitRate = 800000;
int maxFrameRate = 20;
// 音频属性设置
AudioInfo audioInfo = object.getInfo().getAudio();
AudioAttributes audio = new AudioAttributes();
// 设置音频比特率,单位:b (比特率越高,清晰度/音质越好,当然文件也就越大 128000 = 182kb)
if(audioInfo.getBitRate() > maxAudioBitRate){
audio.setBitRate(new Integer(maxAudioBitRate));
}
// 设置重新编码的音频流中使用的声道数(1 =单声道,2 = 双声道(立体声))。
// 如果未设置任何声道值,则编码器将选择默认值 0。
audio.setChannels(audioInfo.getChannels());
// 采样率越高声音的还原度越好,文件越大
// 设置音频采样率,单位:赫兹 hz
// 设置编码时候的音量值,未设置为0;如果256,则音量值不会改变
audio.setVolume(256);
if(audioInfo.getSamplingRate() > maxSamplingRate){
audio.setSamplingRate(maxSamplingRate);
}
// 视频编码属性配置
VideoInfo videoInfo = object.getInfo().getVideo();
VideoAttributes video = new VideoAttributes();
//设置音频比特率,单位:b (比特率越高,清晰度/音质越好,当然文件也就越大 800000 = 800kb)
if(videoInfo.getBitRate() > maxVideoBitRate){
video.setBitRate(maxVideoBitRate);
}
// 视频帧率:15 f / s 帧率越低,效果越差
// 设置视频帧率(帧率越低,视频会出现断层,越高让人感觉越连续),视频帧率(Frame rate)是用于测量显示帧数的量度。
// 所谓的测量单位为每秒显示帧数(Frames per Second,简:FPS)或“赫兹”(Hz)。
if(videoInfo.getFrameRate() > maxFrameRate){
video.setFrameRate(maxFrameRate);
}
EncodingAttributes attr = new EncodingAttributes();
attr.setOutputFormat("mp4");
attr.setAudioAttributes(audio);
attr.setVideoAttributes(video);
// 设置线程数
attr.setEncodingThreads(Runtime.getRuntime().availableProcessors()/2);
Encoder encoder = new Encoder();
encoder.encode(new MultimediaObject(source), target, attr);
System.out.println("压缩总耗时:" + (System.currentTimeMillis() - time)/1000);
return target;
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if(target.length() > 0){
source.delete();
}
}
return source;
}
}
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.FileUtils;
import org.apache.tomcat.util.http.ResponseUtil;
import org.jeecg.common.api.vo.Result;
import org.jeecg.common.constant.CommonConstant;
import org.jeecg.common.constant.SymbolConstant;
import org.jeecg.common.exception.JeecgBootException;
import org.jeecg.common.util.CommonUtils;
import org.jeecg.common.util.RestUtil;
import org.jeecg.common.util.TokenUtils;
import org.jeecg.common.util.filter.FileTypeFilter;
import org.jeecg.common.util.oConvertUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.http.server.ServletServerHttpRequest;
import org.springframework.util.AntPathMatcher;
import org.springframework.util.FileCopyUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.HandlerMapping;
import org.springframework.web.servlet.ModelAndView;
import ws.schild.jave.MultimediaObject;
import ws.schild.jave.encode.AudioAttributes;
import ws.schild.jave.encode.EncodingAttributes;
import ws.schild.jave.encode.VideoAttributes;
import ws.schild.jave.info.AudioInfo;
import ws.schild.jave.info.VideoInfo;
import ws.schild.jave.info.VideoSize;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.math.BigDecimal;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import ws.schild.jave.Encoder;
public File compressionVideo(File source, String picName) {
if(source == null){
return null;
}
String newPath = source.getAbsolutePath().substring(0, source.getAbsolutePath().lastIndexOf(File.separator)).concat(File.separator).concat(picName);
File target = new File(newPath);
try {
MultimediaObject object = new MultimediaObject(source);
AudioInfo audioInfo = object.getInfo().getAudio();
// 根据视频大小来判断是否需要进行压缩,
int maxSize = 5;
double mb = Math.ceil(source.length()/ 1048576);
int second = (int)object.getInfo().getDuration()/1000;
BigDecimal bd = new BigDecimal(String.format("%.4f", mb/second));
System.out.println("开始压缩视频了--> 视频每秒平均 "+ bd +" MB ");
// 视频 > 5MB, 或者每秒 > 0.5 MB 才做压缩, 不需要的话可以把判断去掉
boolean temp = mb > maxSize || bd.compareTo(new BigDecimal(0.5)) > 0;
if(temp){
long time = System.currentTimeMillis();
//TODO 视频属性设置
int maxBitRate = 12800;
int maxSamplingRate = 4410;
int bitRate = 80000;
int maxFrameRate = 5;
int maxWidth = 128;
AudioAttributes audio = new AudioAttributes();
// 设置通用编码格式10 audio.setCodec("aac");
// 设置最大值:比特率越高,清晰度/音质越好
// 设置音频比特率,单位:b (比特率越高,清晰度/音质越好,当然文件也就越大 128000 = 182kb)
if(audioInfo.getBitRate() > maxBitRate){
audio.setBitRate(new Integer(maxBitRate));
}
// 设置重新编码的音频流中使用的声道数(1 =单声道,2 = 双声道(立体声))。如果未设置任何声道值,则编码器将选择默认值 0。
audio.setChannels(audioInfo.getChannels());
// 采样率越高声音的还原度越好,文件越大
// 设置音频采样率,单位:赫兹 hz
// 设置编码时候的音量值,未设置为0,如果256,则音量值不会改变
// audio.setVolume(256);
if(audioInfo.getSamplingRate() > maxSamplingRate){
audio.setSamplingRate(maxSamplingRate);
}
//TODO 视频编码属性配置
ws.schild.jave.info.VideoInfo videoInfo = object.getInfo().getVideo();
VideoAttributes video = new VideoAttributes();
video.setCodec("h264");
//设置音频比特率,单位:b (比特率越高,清晰度/音质越好,当然文件也就越大 800000 = 800kb)
if(videoInfo.getBitRate() > bitRate){
video.setBitRate(bitRate);
}
// 视频帧率:15 f / s 帧率越低,效果越差
// 设置视频帧率(帧率越低,视频会出现断层,越高让人感觉越连续),视频帧率(Frame rate)是用于测量显示帧数的量度。所谓的测量单位为每秒显示帧数(Frames per Second,简:FPS)或“赫兹”(Hz)。
if(videoInfo.getFrameRate() > maxFrameRate){
video.setFrameRate(maxFrameRate);
}
// 限制视频宽高
int width = videoInfo.getSize().getWidth();
int height = videoInfo.getSize().getHeight();
if(width > maxWidth){
float rat = (float) width / maxWidth;
video.setSize(new VideoSize(maxWidth,(int)(height/rat)));
}
EncodingAttributes attr = new EncodingAttributes();
attr.setOutputFormat("mp4");
attr.setAudioAttributes(audio);
attr.setVideoAttributes(video);
// 速度最快的压缩方式, 压缩速度 从快到慢: ultrafast, superfast, veryfast, faster, fast, medium, slow, slower, veryslow and placebo.
// attr.setPreset(PresetUtil.VERYFAST);
// attr.setCrf(27);
// // 设置线程数
attr.setEncodingThreads(Runtime.getRuntime().availableProcessors()/2);
Encoder encoder = new Encoder();
encoder.encode(new MultimediaObject(source), target, attr);
System.out.println("压缩总耗时:" + (System.currentTimeMillis() - time)/1000);
return target;
}
} catch (Exception e) {
e.printStackTrace();
}finally {
if(target.length() > 0){
source.delete();
}
}
return source;
}
前端接收的文件格式为:MultipartFile
后端需要转换为:File
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.web.multipart.MultipartFile;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
public class MultipartFileAndFileUtils {
/**
* MultipartFile 转 File
* @param file
* @throws Exception
*/
public static File toFile(MultipartFile file) throws Exception {
File toFile = null;
if (file.equals("") || file.getSize() <= 0) {
file = null;
} else {
InputStream ins = null;
ins = file.getInputStream();
toFile = new File(file.getOriginalFilename());
inputStreamToFile(ins, toFile);
ins.close();
}
return toFile;
}
/**
* File 转 MultipartFile
* @param file
* @throws Exception
*/
public static MultipartFile toMultipartFile(File file) throws Exception {
InputStream inputStream = new FileInputStream(file);
MultipartFile multipartFile = new MockMultipartFile(file.getName(), file.getName(),"application/octet-stream", inputStream);
return multipartFile;
}
//获取流文件
private static void inputStreamToFile(InputStream ins, File file) {
try {
OutputStream os = new FileOutputStream(file);
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) {
os.write(buffer, 0, bytesRead);
}
os.close();
ins.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 删除本地临时文件
* @param file
*/
public static void delteTempFile(File file) {
if (file != null) {
File del = new File(file.toURI());
del.delete();
}
}
}
关于报错
ws.schild.jave.EncoderException: Exit code of ffmpeg encoding run is 1
是因为代码来设置了 setCodec;默认不传也可以压缩。
注:一个800M的文件可以压缩到400M左右;我本地测试压缩时间为30分钟左右。
linuxu环境没有测试;可参考以下文章进行配置。
原文链接:https://blog.csdn.net/qq_43619832/article/details/124062598
JAVA,实现视频压缩(最全)_ffmpeg-amd64-3.0.0.exe-CSDN博客
ffmpeg-amd64-3.0.0
,如果没有这个文件,在依赖的jar包中(jave-nativebin-win64)获取,手动放上。