Combined Frontend with backend, and implemented the extractor function into the module structure

2026-06-15 18:01:52 +02:00 · 2025-11-10 16:18:57 +01:00
parent bd8ed1bf81
commit 92043440fe
6 changed files with 1483 additions and 11 deletions
@@ -0,0 +1,93 @@
+
+// Ensure ffmpeg binary is available
+if (!ffmpegPath) {
+    throw new Error('FFmpeg binary not found!');
+}
+ffmpeg.setFfmpegPath(ffmpegPath);
+
+// Prepare output directory (always storage/audio under project root)
+const outputDir = `${__dirname}/../../../storage/audio`;
+if (!fs.existsSync(outputDir)) {
+    fs.mkdirSync(outputDir, { recursive: true });
+}
+
+
+
+module.exports = {
+    name:"extraction-video-to-audio", // Unique name for our function that will later be used to get the function from the map via "mapFunctions.get("example").function()"
+    type:"extractor", // value used to differentiate each module to order them in the UI
+    displayname:"Default extractor", // The displayname used within the UI
+    async function(parameter){
+        /*
+        parameter structure:
+        {
+            inputVideoPath: String, // Path to the file
+            outputType: String      // Audio file output format
+        }
+        */
+        let progressBar = new cliProgress.SingleBar({
+            format: 'Processing |{bar}| {percentage}% | {timemark}',
+            barCompleteChar: '\u2588',
+            barIncompleteChar: '\u2591',
+            hideCursor: true
+        });
+        try {
+            // if (meta.url === `file://${process.argv[1]}`) {
+                this.extractAudioFromVideo(parameter.inputVideoPath, progressBar, parameter.outputType)
+                    .then(() => console.log('Audio extraction successful.'))
+                    .catch((err) => console.error(err));
+            // }
+        } catch (error) {
+            console.log(parameter.outputType);
+            
+        }
+
+    },
+    // Derive input and output paths
+    // const inputVideoPath = process.argv[2];
+    // console.log(process.argv);
+
+    /**
+     * Extracts audio from a video using ffmpeg.
+     * - Converts video to WAV (16 kHz, Mono, PCM optional if needed)
+     * - Shows CLI progress bar
+     * - Handles errors gracefully (without errors)
+     */
+    extractAudioFromVideo: async function (videoFilePath, progressBar, outputType){
+        let inputVideoName = path.basename(videoFilePath, path.extname(videoFilePath));
+        let outputAudioPath = path.join(outputDir, `${inputVideoName}.${outputType}`);
+
+        return new Promise((resolve, reject) => {
+            try {
+                ffmpeg(videoFilePath)
+                .outputFormat(outputType)
+                // .audioCodec('pcm_s16le')
+                .audioChannels(1)
+                .audioFrequency(16000)
+                // .setFfmpegPath("./ffmpeg.exe")
+                .on('progress', (progress) => {
+                    if (!progressBar.isActive) progressBar.start(100, 0, { timemark: '00:00:00' });
+                    if (progress.percent) {
+                    progressBar.update(progress.percent, { timemark: progress.timemark });
+                    }
+                })
+                .on('end', () => {
+                    progressBar.update(100, { timemark: 'done' });
+                    progressBar.stop();
+                    console.log(`Extraction completed: ${outputAudioPath}`);
+                    resolve();
+                })
+                .on('error', (err) => {
+                    progressBar.stop();
+                    console.error(`failed_audio_extraction on type ${outputType}: ${err.message}`);
+                    reject(err);
+                })
+                .save(outputAudioPath);
+
+            } catch (error) {
+                console.log();
+            }
+        });
+    }
+
+}