chore(example): add webm2mpe demo

.dockerignore

@@ -1,8 +1,10 @@
 README-zh.md
 README.md
 LICENSE
+.all-contributorsrc
 logs
 src/node_modules
 src/tsconfig.json
 src/webpack.config.js
 src/.eslintrc.js
+examples

.gitignore

@@ -91,3 +91,5 @@ typings/
 
 ### Custom
 .idea
+/examples/*/rebirth_data/*
+!/examples/*/rebirth_data/.gitkeep

examples/webm2mp4/Dockerfile

@@ -0,0 +1,7 @@
+FROM rebirth:1.0.0
+
+MAINTAINER Black-Hole<[email protected]>
+
+RUN apt-get install -yq ffmpeg
+
+RUN npm install fluent-ffmpeg

examples/webm2mp4/docker-compose.yml

@@ -0,0 +1,15 @@
+version: '3'
+services:
+  webm2mp4:
+    build: .
+    container_name: webm2mp4-rebirth
+    ports:
+     - "9223"
+     - "5920"
+    volumes:
+      - ./hooks:/etc/www/hooks
+      - ./rebirth_data/video:/root/Downloads
+      - ./rebirth_data/logs:/etc/www/logs
+    environment:
+      MATERIAL_URL: "https://www.bugs.cc/self_page/github/rebirth/webm2mp4/"
+      START_VNC: "yes"

examples/webm2mp4/hooks/index.js

@@ -0,0 +1,37 @@
+const { join } = require('path');
+const { homedir } = require('os');
+const ffmpeg = require('fluent-ffmpeg');
+const { loggerHooks } = require('../lib/log');
+
+module.exports = {
+  completeRecordAfter: (data) => {
+    const baseFile =  join(homedir(), 'Downloads');
+    const inputFile = join(baseFile, `${data.fileName}.webm`);
+    const outputFile = join(baseFile, `${data.fileName}.mp4`)
+
+    return new Promise((resolve, reject) => {
+      ffmpeg(inputFile)
+      .on('start', commandLine => {
+        loggerHooks.info('ffmpeg start', {
+          commandLine
+        });
+      })
+      .on('error', err => {
+        loggerHooks.error('ffmpeg error', {
+          errMessage: err.message,
+          errStack: err.stack
+        });
+        reject(err);
+      })
+      .on('end', () => {
+        loggerHooks.info('ffmpeg complete', {
+          inputFile,
+          outputFile
+        });
+        resolve();
+      })
+      .outputOptions(['-fflags +genpts', '-max_muxing_queue_size 99999', '-r 30', '-crf 20'])
+      .save(outputFile);
+    });
+  }
+};