feat(server): tone-mapping (#3512)

* added tonemapping

* check for hdr in transcode policy

* merged video thumbnail and transcoding logic

* updated tests

* removed log

* added dashboard option, updated api

* `out_color_matrix` for sdr video thumbs, cleanup

* updated tests & styling

* refactored tonemapping setting

* fixed tests

* formatting

* added tests

* updated api

* set target npl higher for mobius and reinhard

* convert to nv12 before nvenc

* fix test

---------

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

web/src/lib/components/admin-page/settings/ffmpeg/ffmpeg-settings.svelte

@@ -3,7 +3,15 @@
     notificationController,
     NotificationType,
   } from '$lib/components/shared-components/notification/notification';
-  import { api, AudioCodec, SystemConfigFFmpegDto, TranscodeHWAccel, TranscodePolicy, VideoCodec } from '@api';
+  import {
+    api,
+    AudioCodec,
+    SystemConfigFFmpegDto,
+    ToneMapping,
+    TranscodeHWAccel,
+    TranscodePolicy,
+    VideoCodec,
+  } from '@api';
   import SettingButtonsRow from '../setting-buttons-row.svelte';
   import SettingInputField, { SettingInputFieldType } from '../setting-input-field.svelte';
   import SettingSelect from '../setting-select.svelte';
@@ -212,6 +220,32 @@
             isEdited={!(ffmpegConfig.accel == savedConfig.accel)}
           />
 
+          <SettingSelect
+            label="TONE-MAPPING"
+            desc="Attempts to preserve the appearance of HDR videos when converted to SDR. Each algorithm makes different tradeoffs for color, detail and brightness. Hable preserves detail, Mobius preserves color, and Reinhard preserves brightness."
+            bind:value={ffmpegConfig.tonemap}
+            name="tonemap"
+            options={[
+              {
+                value: ToneMapping.Hable,
+                text: 'Hable',
+              },
+              {
+                value: ToneMapping.Mobius,
+                text: 'Mobius',
+              },
+              {
+                value: ToneMapping.Reinhard,
+                text: 'Reinhard',
+              },
+              {
+                value: ToneMapping.Disabled,
+                text: 'Disabled',
+              },
+            ]}
+            isEdited={!(ffmpegConfig.tonemap == savedConfig.tonemap)}
+          />
+
           <SettingSwitch
             title="TWO-PASS ENCODING"
             subtitle="Transcode in two passes to produce better encoded videos. When max bitrate is enabled (required for it to work with H.264 and HEVC), this mode uses a bitrate range based on the max bitrate and ignores CRF. For VP9, CRF can be used if max bitrate is disabled."