feat: Make streaming optional when stream mode is enabled

Closes #218

controllers/DownloadController.php

@@ -240,7 +240,7 @@ class DownloadController extends BaseController
         }
         if (count($videoUrls) > 1) {
             return $this->getRemuxStream($request, $response);
-        } elseif ($this->config->stream) {
+        } elseif ($this->config->stream && (isset($this->video->entries) || $request->getQueryParam('stream'))) {
             return $this->getStream($request, $response);
         } else {
             if (empty($videoUrls[0])) {

templates/info.tpl

@@ -80,6 +80,11 @@
                 {/foreach}
             </optgroup>
         </select><br/><br/>
+        {if $config->stream}
+            <input type="checkbox" name="stream" id="stream"/>
+            <label for="stream">{t}Stream the video through the server{/t}</label>
+            <br/><br/>
+        {/if}
         {if $config->convertAdvanced}
             <input type="checkbox" name="customConvert" id="customConvert"/>
             <label for="customConvert">{t}Convert into a custom format:{/t}</label>

tests/DownloadControllerTest.php

@@ -67,7 +67,7 @@ class DownloadControllerTest extends ControllerTest
 
         $this->assertRequestIsOk(
             'download',
-            ['url' => 'https://www.youtube.com/watch?v=M7IpKCZ47pU']
+            ['url' => 'https://www.youtube.com/watch?v=M7IpKCZ47pU', 'stream' => true]
         );
     }
 
@@ -89,6 +89,7 @@ class DownloadControllerTest extends ControllerTest
             [
                 'url'    => 'https://twitter.com/verge/status/813055465324056576/video/1',
                 'format' => 'hls-2176',
+                'stream' => true,
             ]
         );
     }