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api/controller_front/video_effects.js

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+const { plu_upgrade, op } = require("../../middleware/baseModel");
+const { encoder } = require("../service/ffmpeg/encoder");
+const fs = require('fs');
+const stream = require("stream");
+const path = require("path");
+
+const getStreamContentTobase64Stream = async (file) => {
+
+  let p = new Promise((resolve, reject) => {
+    const readStream = fs.createReadStream(file.path)
+    const readStream2 = new stream.Readable();
+
+
+
+    let str = ''
+    readStream.on('data', data => {
+      str += data.toString()
+
+    })
+
+    readStream.on('end', () => {
+
+      let base64Array = str.split('data:image/png;base64,')
+      console.log('count', base64Array.length)
+      for (let i = 0; i < base64Array.length; i++) {
+        let base64 = base64Array[i].replace(/^data:\w+\/\w+;base64,/, '')
+        const buffer = Buffer.from(base64, "base64");
+        readStream2.push(buffer);
+      }
+
+      readStream2.push(null)
+
+
+      resolve(readStream2)
+    })
+
+    readStream.on('error', err => {
+      reject(err)
+      console.log(err)
+    })
+
+
+  })
+
+  return p
+
+}
+
+module.exports = {
+  "POST /video_effects/build": async (ctx, next) => {
+    const files = ctx.request.files; // 获取上传文件
+
+    let file = files.file
+
+    let frameStream = await getStreamContentTobase64Stream(file)
+
+
+    const output = await encoder({
+      silent: false,
+      frameStream: frameStream,
+      backgroundVideo: {
+        videoPath: path.join(__dirname, "../../config/media/demo_out.mp4"),
+        inSeconds: 1,
+        outSeconds: 30,
+      },
+      output: "output/test.mp4",
+      fps: {
+        input: 30,
+        output: 30,
+      },
+    });
+
+
+    console.log("process done,", output.path);
+
+    return ctx.success({ path: output.path });
+  },
+};