admin setting

i18n/en.json

@@ -401,6 +401,10 @@
     "transcoding_preferred_hardware_device_description": "Applies only to VAAPI and QSV. Sets the dri node used for hardware transcoding.",
     "transcoding_preset_preset": "Preset (-preset)",
     "transcoding_preset_preset_description": "Compression speed. Slower presets produce smaller files, and increase quality when targeting a certain bitrate. VP9 ignores speeds above 'faster'.",
+    "transcoding_realtime": "Real-time Transcoding [EXPERIMENTAL]",
+    "transcoding_realtime_description": "Allows transcoding to be performed in real-time as the video is being streamed. Enables quality switching, but may cause higher playback latency and stuttering depending on server capabilities.",
+    "transcoding_realtime_enabled": "Enable real-time transcoding",
+    "transcoding_realtime_enabled_description": "If disabled, the server will refuse to start new real-time transcoding sessions.",
     "transcoding_reference_frames": "Reference frames",
     "transcoding_reference_frames_description": "The number of frames to reference when compressing a given frame. Higher values improve compression efficiency, but slow down encoding. 0 sets this value automatically.",
     "transcoding_required_description": "Only videos not in an accepted format",

web/src/routes/admin/system-settings/FFmpegSettings.svelte

@@ -388,6 +388,22 @@
             />
           </div>
         </SettingAccordion>
+
+        <SettingAccordion
+          key="realtime-transcoding"
+          title={$t('admin.transcoding_realtime')}
+          subtitle={$t('admin.transcoding_realtime_description')}
+        >
+          <div class="ms-4 mt-4 flex flex-col gap-4">
+            <SettingSwitch
+              title={$t('admin.transcoding_realtime_enabled')}
+              subtitle={$t('admin.transcoding_realtime_enabled_description')}
+              bind:checked={configToEdit.ffmpeg.realtime.enabled}
+              isEdited={configToEdit.ffmpeg.realtime.enabled !== configToEdit.ffmpeg.realtime.enabled}
+              {disabled}
+            />
+          </div>
+        </SettingAccordion>
       </div>
 
       <div class="ms-4">