From d7c3b24e06085fa6e7d59ec4f93f4af30edec08f Mon Sep 17 00:00:00 2001
From: Adam Soltys <asoltys@gmail.com>
Date: Fri, 25 Aug 2023 22:09:46 +0000
Subject: ffmpeg encode mp3

---
 lib/payments.js | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/payments.js b/lib/payments.js
index ab258b60..fb7d9cc6 100644
--- a/lib/payments.js
+++ b/lib/payments.js
@@ -11,6 +11,7 @@ import dollarsToWords from "dollars-to-words";
 import got from "got";
 import mqtt from "mqtt";
 import { spawn } from "child_process";
+import ffmpeg from 'fluent-ffmpeg';
 
 export const types = {
   internal: "internal",
@@ -180,9 +181,28 @@ export let credit = async (hash, amount, memo, ref, type = types.internal) => {
       parseFloat(((amount * p.rate) / 100000000).toFixed(2))
     );
 
-    const mimic = spawn("/mimic", ["-t", words, "-voice", "/cmu_us_axb.flitevox", "-o", `/app/data/uploads/${p.id}.wav`]);
-
     const client  = mqtt.connect('mqtt://ln.coinos.io', config.mqtt);
+    const raw = `/app/data/uploads/${p.id}-raw.mp3`;
+    const out = `/app/data/uploads/${p.id}.mp3`;
+    const mimic = spawn("/mimic", ["-t", words, "-voice", "/cmu_us_axb.flitevox", "-o", raw]);
+
+    mimic.stdout.on("end", () => {
+      ffmpeg(raw)
+          .audioBitrate(128)
+          .audioFrequency(44100)
+          .toFormat('mp3')
+          .on('data', (chunk) => {
+            client.publish("mp3", chunk);
+          })
+          .on('end', () => {
+            console.log('File has been re-encoded successfully.');
+          })
+          .on('error', (err) => {
+            console.error('Error:', err);
+          })
+          .save(out);
+    });
+
     client.on('connect', function () {
       client.publish(username, `${p.amount}:${p.tip}:${p.rate}:${p.created}:${p.id}`);
     });
-- 
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