From 84189d5cfec3aa6bb142a3fb458728bd27360e7a Mon Sep 17 00:00:00 2001
From: aunefyren <oystein.sverre@gmail.com>
Date: Wed, 23 Mar 2022 22:19:02 +0100
Subject: [PATCH] Music library plugin, ALAC to FLAC

Made a plugin that converts from Apples ALAC codec to FLAC, losslessly. I use this myself and figured someone else might use it because there are no music library plugins.
---
 .../Tdarr_Plugin_fu72_aune_alac_to_flac.js    | 81 +++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 Community/Tdarr_Plugin_fu72_aune_alac_to_flac.js

diff --git a/Community/Tdarr_Plugin_fu72_aune_alac_to_flac.js b/Community/Tdarr_Plugin_fu72_aune_alac_to_flac.js
new file mode 100644
index 0000000..ff457ff
--- /dev/null
+++ b/Community/Tdarr_Plugin_fu72_aune_alac_to_flac.js
@@ -0,0 +1,81 @@
+function details() {
+    return {
+        id: "Tdarr_Plugin_fu72_aune_alac_to_flac",
+        Stage: "Pre-processing",
+        Name: "Aune - ALAC to Flac",
+        Type: "Audio",
+        Operation: "Transcode",
+        Description: `[Contains built-in filter] This plugin transcodes all ALAC-tracks to FLAC. It ignores files that contains video streams and is made for music libraries.\n\n`,
+        Version: "1.00",
+        Link: "https://github.com/HaveAGitGat/Tdarr_Plugins/blob/master/Community/Tdarr_Plugin_fu72_aune_alac_to_flac.js",
+        Tags: "pre-processing,ffmpeg,audio only",
+    };
+}
+  
+function plugin(file) {
+    //Must return this object
+
+    var response = {
+        processFile: false,
+        preset: "",
+        container: "." + file.container,
+        handBrakeMode: false,
+        FFmpegMode: false,
+        reQueueAfter: false,
+        infoLog: "",
+    };
+    
+    // Mark video as false
+    var video = false;
+    // Check every information stream in the file
+    for(var i = 0; i < file.ffProbeData.streams.length; i++) {
+        // If one stream is video and the framerate is not '0/0', mark file as video
+        if(file.ffProbeData.streams[i].codec_type.toLowerCase() == 'video' && file.ffProbeData.streams[i].avg_frame_rate.toLowerCase() !== "0/0") {
+            video = true;
+            break;
+        }
+    }
+
+    // If file is video, do not process
+    if (video) {
+        console.log("File is a video.");
+        response.infoLog += "☒File is a video!\n";
+        response.processFile = false;
+
+        return response;
+    
+    // If file is not video, check codec
+    } else {
+        // Initiate transcode boolean as false
+        var transcode = false;
+
+        // Check every stream for 'audio' type and 'alac' codec, and mark transcode as true
+        for (var i = 0; i < file.ffProbeData.streams.length; i++) {
+                if (file.ffProbeData.streams[i].codec_type.toLowerCase() == "audio") {
+                    if(file.ffProbeData.streams[i].codec_name.toLowerCase() == "alac") {
+                        transcode = true;
+                        break;
+                    }
+                }
+        }
+        
+        // Either transcode to FLAC (lossess) or ignore file
+        if(transcode) {
+            response.processFile = true;
+            response.preset = ", -f flac";
+            response.container = ".flac";
+            response.handBrakeMode = false;
+            response.FFmpegMode = true;
+            response.reQueueAfter = true;
+            response.infoLog += "☒Found ALAC codec!\n";
+            return response;
+        } else {
+            response.processFile = false;
+            response.infoLog += "☑No ALAC codec found!\n";
+            return response;
+        }
+    }
+}
+
+module.exports.details = details;
+module.exports.plugin = plugin;
\ No newline at end of file