snapshot: use internal prebuffer converter rather than media manager

plugins/snapshot/.vscode/settings.json

@@ -1,4 +1,4 @@
 
 {
-    "scrypted.debugHost": "koushik-windows",
+    "scrypted.debugHost": "127.0.0.1",
 }

plugins/snapshot/package-lock.json

@@ -1,12 +1,12 @@
 {
    "name": "@scrypted/snapshot",
-   "version": "0.2.14",
+   "version": "0.2.15",
    "lockfileVersion": 2,
    "requires": true,
    "packages": {
       "": {
          "name": "@scrypted/snapshot",
-         "version": "0.2.14",
+         "version": "0.2.15",
          "dependencies": {
             "@koush/axios-digest-auth": "^0.8.5",
             "@types/node": "^18.16.18",

plugins/snapshot/package.json

@@ -1,6 +1,6 @@
 {
    "name": "@scrypted/snapshot",
-   "version": "0.2.14",
+   "version": "0.2.15",
    "description": "Snapshot Plugin for Scrypted",
    "scripts": {
       "scrypted-setup-project": "scrypted-setup-project",

plugins/snapshot/src/ffmpeg-image-filter.ts

@@ -1,12 +1,11 @@
-import fs from 'fs';
 import { addVideoFilterArguments } from '@scrypted/common/src/ffmpeg-helpers';
 import { ffmpegLogInitialOutput, safeKillFFmpeg, safePrintFFmpegArguments } from '@scrypted/common/src/media-helpers';
+import { timeoutFunction } from '@scrypted/common/src/promise-utils';
 import { sleep } from '@scrypted/common/src/sleep';
 import child_process, { ChildProcess } from 'child_process';
 import { once } from 'events';
 import { Writable } from 'stream';
 import { Pipe2Jpeg } from './pipe2jpeg';
-import { timeoutFunction } from '@scrypted/common/src/promise-utils';
 
 export interface FFmpegImageFilterOptions {
     console?: Console,

plugins/snapshot/src/main.ts

@@ -176,7 +176,12 @@ class SnapshotMixin extends SettingsMixinDeviceBase<Camera> implements Camera {
                     request.refresh = false;
                 takePrebufferPicture = async () => {
                     // this.console.log('snapshotting active prebuffer');
-                    return mediaManager.convertMediaObjectToBuffer(await realDevice.getVideoStream(request), 'image/jpeg');
+                    const ffmpegInput = await sdk.mediaManager.convertMediaObjectToJSON<FFmpegInput>(await realDevice.getVideoStream(request), ScryptedMimeTypes.FFmpegInput);
+                    return ffmpegFilterImage(ffmpegInput.inputArguments, {
+                        console: this.debugConsole,
+                        ffmpegPath: await mediaManager.getFFmpegPath(),
+                        timeout: 10000,
+                    });
                 };
                 return takePrebufferPicture;
             }