使用基于springboot+html+js+css+ffmpeg的代码实现一个将m3u8地址的视频转换为MP4并下载的网站,要求如下:1.输入一个m3u8地址,若有效,则使用FFmpeg来提取ts碎片并将其合并为单个MP4文件,并将该MP4文件下载到指定目录。2.整合ts碎片合成mp4的过程需要有进度条显示。
时间: 2024-02-09 14:13:25 浏览: 190
好的,以下是一个简单的示例代码,供您参考:
1. 在 pom.xml 文件中添加 FFmpeg 的依赖库:
```xml
<dependency>
<groupId>com.github.kokorin.jaffree</groupId>
<artifactId>jaffree</artifactId>
<version>0.3.3</version>
</dependency>
```
2. 编写一个 HTML 页面,包含一个输入框和一个按钮,用户可以在输入框中输入 m3u8 地址,点击按钮后触发转换和下载操作。
```html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Convert M3U8 to MP4</title>
</head>
<body>
<h1>Convert M3U8 to MP4</h1>
<p>Input the M3U8 URL:</p>
<input type="text" id="inputUrl">
<button onclick="convert()">Convert and Download</button>
<p id="progress"></p>
<script>
function convert() {
var url = document.getElementById("inputUrl").value;
var xhr = new XMLHttpRequest();
xhr.open("POST", "/convert?url=" + encodeURIComponent(url), true);
xhr.upload.onprogress = function(e) {
var percent = Math.round(e.loaded / e.total * 100);
document.getElementById("progress").innerText = "Conversion progress: " + percent + "%";
}
xhr.onreadystatechange = function() {
if (xhr.readyState === 4 && xhr.status === 200) {
var fileName = xhr.responseText;
var a = document.createElement("a");
a.href = "/download?fileName=" + encodeURIComponent(fileName);
a.download = fileName;
a.click();
}
}
xhr.send();
}
</script>
</body>
</html>
```
3. 在后端编写一个控制器,接收用户提交的 m3u8 地址,并使用 FFmpeg 提取 ts 碎片并将其合并为单个 mp4 文件。同时,可以使用 FFmpeg 的输出来获取合成进度,并将其传递给前端。
```java
@RestController
public class ConverterController {
@PostMapping("/convert")
public ResponseEntity<String> convert(@RequestParam("url") String url) throws IOException {
// Step 1: Parse the M3U8 file and get the list of ts files
List<String> tsFiles = parseM3U8(url);
// Step 2: Use FFmpeg to merge the ts files into a single MP4 file
String fileName = mergeTsFiles(tsFiles);
return ResponseEntity.ok(fileName);
}
private List<String> parseM3U8(String url) throws IOException {
List<String> tsFiles = new ArrayList<>();
URL m3u8Url = new URL(url);
BufferedReader reader = new BufferedReader(new InputStreamReader(m3u8Url.openStream()));
String line;
while ((line = reader.readLine()) != null) {
if (line.endsWith(".ts")) {
tsFiles.add(line);
}
}
reader.close();
return tsFiles;
}
private String mergeTsFiles(List<String> tsFiles) throws IOException {
FFmpeg ffmpeg = new FFmpeg("/path/to/ffmpeg"); // Replace with the actual path to FFmpeg
FFprobe ffprobe = new FFprobe("/path/to/ffprobe"); // Replace with the actual path to FFprobe
int numFiles = tsFiles.size();
List<Input> inputs = new ArrayList<>(numFiles);
for (int i = 0; i < numFiles; i++) {
String tsFile = tsFiles.get(i);
inputs.add(Input.fromPath(tsFile));
}
String fileName = "output.mp4";
Output output = new Builder(fileName)
.setFormat("mp4")
.addExtraArgs("-c", "copy")
.done();
FFmpegExecutor executor = new FFmpegExecutor(ffmpeg, ffprobe);
executor.createJob(inputs, output)
.setProgressListener(new ProgressListener() {
@Override
public void progress(Progress progress) {
// Send the progress to the client
// The progress object contains information about the current frame number and the total number of frames
// You can use this information to calculate the percentage of completion
int percent = (int) (progress.getFrame() * 100 / progress.getTotalFrames());
// You can use web sockets or other techniques to send the progress to the client in real time
// In this example, we just use a simple HTTP response to update the progress on the page
return ResponseEntity.ok(percent);
}
})
.run();
return fileName;
}
@GetMapping("/download")
public ResponseEntity<byte[]> download(@RequestParam("fileName") String fileName) throws IOException {
Path file = Paths.get(fileName);
byte[] bytes = Files.readAllBytes(file);
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
headers.setContentDisposition(ContentDisposition.attachment().filename(fileName).build());
return new ResponseEntity<>(bytes, headers, HttpStatus.OK);
}
}
```
4. 在前端使用 AJAX 技术向后端发送请求,并通过进度条来显示合成进度。
5. 最后,将生成的 mp4 文件下载到指定目录。
这只是一个粗略的示例代码,实际实现还需要根据具体需求进行修改和优化。例如,如何处理 FFmpeg 的输出,如何在后台进行文件下载等等。建议您在实现过程中参考相关的文档和教程,并进行适当的修改和优化。
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