Download trimmed video's

Merge pull request #59 from MichaelBelgium/trimming

Author: MichaelBelgium

composer.json

@@ -20,6 +20,7 @@
         "phpstan/phpstan": "^2.0"
     },
     "config": {
-        "sort-packages": true
+        "sort-packages": true,
+        "process-timeout": 600
     }
 }

public/convert.php

@@ -11,6 +11,8 @@
 if(isset($_GET["youtubelink"]) && !empty($_GET["youtubelink"]))
 {
     $youtubelink = $_GET["youtubelink"];
+    $startAt = $_GET["startAt"] ?? null;
+    $endAt = $_GET["endAt"] ?? null;
     $format = $_GET['format'] ?? 'mp3';
 
     if(!in_array($format, POSSIBLE_FORMATS))
@@ -31,6 +33,36 @@
 
     $exists = file_exists(env('DOWNLOAD_FOLDER').$id.".".$format);
 
+    if (!empty($startAt) || !empty($endAt))
+    {
+        if (!empty($startAt) && !empty($endAt))
+        {
+            if ((int)$startAt >= (int)$endAt)
+            {
+                http_response_code(400);
+                die(json_encode(array("error" => true, "message" => "Invalid time range: startAt must be less than endAt")));
+            }
+        }
+
+        $query = parse_url($youtubelink, PHP_URL_QUERY);
+        parse_str($query, $params);
+
+        if (!empty($startAt))
+            $params['start'] = $startAt;
+
+        if (!empty($endAt))
+            $params['end'] = $endAt;
+
+        $youtubelink = strtok($youtubelink, '?') . '?' . http_build_query($params);
+
+        if ($exists)
+        {
+            //todo this can probably go when youtube-dl-php supports --force-overwrites options
+            unlink(env('DOWNLOAD_FOLDER').$id.".".$format);
+            $exists = false;
+        }
+    }
+
     if(env('DOWNLOAD_MAX_LENGTH', 0) > 0 || $exists)
     {
         try	{
@@ -69,6 +101,9 @@
             ->cookies(file_exists(env('COOKIE_FILE')) ? env('COOKIE_FILE') : null)
             ->url($youtubelink);
 
+        if (!empty($startAt) || !empty($endAt))
+            $options = $options->downloadSections('*from-url');
+
         if($format == 'mp3')
         {
             $options = $options->extractAudio(true)

public/index.php

@@ -23,7 +23,7 @@
                             <div class="row">
                                 <div class="col-lg-8">
                                     <div class="form-floating mb-3">
-                                        <input type="text" name="youtubelink" class="form-control" id="link" required placeholder="youtube.com" />
+                                        <input type="text" name="youtubelink" class="form-control" id="link" onchange="fillStartEnd()" onkeyup="fillStartEnd()" required placeholder=" " />
                                         <label for="link">Youtube url</label>
                                     </div>
                                 </div>
@@ -39,7 +39,35 @@
                                 </div>
                             </div>
 
-                            <button type="submit" class="btn btn-outline-primary"><i class="fas fa-sync-alt"></i> Convert</button>
+                            <div class="row">
+                                <div class="col-lg-12">
+                                    <div class="input-group">
+                                        <span class="input-group-text">
+                                            <i class="fa-solid fa-forward-step"></i>
+                                        </span>
+
+                                        <div class="form-floating">
+                                            <input type="number" class="form-control" min="0" name="startAt" id="startAt" placeholder=" " />
+                                            <label for="startAt">Start</label>
+                                        </div>
+
+                                        <div class="form-floating">
+                                            <input type="number" class="form-control" min="0" name="endAt" id="endAt" placeholder=" " />
+                                            <label for="endAt">End</label>
+                                        </div>
+
+                                        <span class="input-group-text">
+                                            <i class="fa-solid fa-backward-step"></i>
+                                        </span>
+                                    </div>
+                                    <div class="form-text">
+                                        Specify start and/or end times <b>(in seconds)</b> to trim the video. Leave both empty to download the complete video.<br/>
+                                        Start time only: downloads from that point to the end. End time only: downloads from the beginning to that point.
+                                    </div>
+                                </div>
+                            </div>
+
+                            <button type="submit" class="btn btn-outline-primary mt-4"><i class="fas fa-sync-alt"></i> Convert</button>
                         </form>
                     </div>
                 </div>

public/script.js

@@ -9,11 +9,19 @@ document.addEventListener('DOMContentLoaded', () => {
         const submitButton = frmConvert.querySelector("button[type=submit]");
         const link = document.getElementById('link').value;
         const format = document.getElementById('format').value;
+        const startAt = document.getElementById('startAt').value;
+        const endAt = document.getElementById('endAt').value;
 
         submitButton.classList.add("disabled");
         submitButton.innerHTML = "<i class=\"fas fa-spin fa-sync-alt\"></i> Converting...";
 
-        const endpoint = `${frmConvert.getAttribute("action")}?youtubelink=${link}&format=${format}`;
+        let endpoint = `${frmConvert.getAttribute("action")}?youtubelink=${link}&format=${format}`;
+
+        if (startAt.length > 0)
+            endpoint += `&startAt=${startAt}`;
+
+        if (endAt.length > 0)
+            endpoint += `&endAt=${endAt}`;
 
         fetch(endpoint)
             .then(response => response.json())
@@ -168,4 +176,37 @@ function handleInfoResponse(data, submitButton)
         tableCells[9].innerText = data.title;
         tableCells[10].innerHTML = `<a target='_blank' href='${data.url}'>${data.url}</a>`;
     }
+}
+
+function fillStartEnd()
+{
+    const elLink = document.getElementById('link');
+    const elStart = document.getElementById('startAt');
+    const elEnd = document.getElementById('endAt');
+
+    const url = new URL(elLink.value);
+    const start = url.searchParams.get("start") || url.searchParams.get("t");
+    const end = url.searchParams.get("end");
+
+    if (start && start.length > 0)
+    {
+        elStart.value = start;
+        elStart.setAttribute('readonly', 'readonly');
+    }
+    else
+    {
+        elStart.value = '';
+        elStart.removeAttribute('readonly');
+    }
+
+    if (end && end.length > 0)
+    {
+        elEnd.value = end;
+        elEnd.setAttribute('readonly', 'readonly');
+    }
+    else
+    {
+        elEnd.value = '';
+        elEnd.removeAttribute('readonly');
+    }
 }