diff --git a/src/app/main/main.component.css b/src/app/main/main.component.css
index d0f9435..98e1899 100644
--- a/src/app/main/main.component.css
+++ b/src/app/main/main.component.css
@@ -36,6 +36,10 @@ mat-toolbar.top {
     width: 100%;
 }
 
+.example-80-width {
+    width: 80%
+}
+
 mat-form-field.mat-form-field {
     font-size: 24px;
   }
@@ -65,4 +69,16 @@ mat-form-field.mat-form-field {
     position: absolute;
     right: -10px;
     top: 5px;
+}
+
+.spinner-div {
+    display: inline-block;
+    position: absolute;
+    top: 15px;
+    right: -40px;
+}
+
+.margined {
+    margin-left: 20px;
+    margin-right: 20px;
 }
\ No newline at end of file
diff --git a/src/app/main/main.component.html b/src/app/main/main.component.html
index f173278..65a3a4e 100644
--- a/src/app/main/main.component.html
+++ b/src/app/main/main.component.html
@@ -7,11 +7,32 @@
         <mat-card-content>
             <div style="position: relative;">
                 <form class="example-form">
-                    <mat-form-field class="example-full-width">
-                        <input matInput (ngModelChange)="inputChanged($event)" [(ngModel)]="url" placeholder="URL" type="url" name="url" [formControl]="urlForm" required #urlinput>
-                        <mat-error *ngIf="urlError || urlForm.invalid">Please enter a valid URL!</mat-error>
-                        <button class="input-clear-button" mat-icon-button (click)="clearInput()"><mat-icon>clear</mat-icon></button>
-                    </mat-form-field>
+                    <div class="container-fluid">
+                        <div class="row">
+                            <div class="col-12 col-sm-9">
+                                <mat-form-field class="example-full-width">
+                                    <input style="padding-right: 25px;" matInput (ngModelChange)="inputChanged($event)" [(ngModel)]="url" [placeholder]="'URL' + (youtubeSearchEnabled ? ' or search' : '')" type="url" name="url" [formControl]="urlForm" required #urlinput>
+                                    <mat-error *ngIf="urlError || urlForm.invalid">Please enter a valid URL!</mat-error>
+                                    <button class="input-clear-button" mat-icon-button (click)="clearInput()"><mat-icon>clear</mat-icon></button>
+                                </mat-form-field>
+                            </div>
+                            <div class="col-7 col-sm-3">
+                                <mat-form-field style="display: inline-block; width: inherit; min-width: 120px;">
+                                    <mat-label>Quality</mat-label>
+                                    <mat-select [ngModelOptions]="{standalone: true}" [(ngModel)]="selectedQuality">
+                                      <ng-container *ngFor="let option of qualityOptions[(audioOnly) ? 'audio' : 'video']">
+                                        <mat-option *ngIf="option.value === '' || url && cachedAvailableFormats[url] && cachedAvailableFormats[url] && cachedAvailableFormats[url][(audioOnly) ? 'audio' : 'video'][option.value]" [value]="option.value">
+                                            {{option.label}}
+                                        </mat-option>
+                                      </ng-container>
+                                    </mat-select>
+                                    <div class="spinner-div" *ngIf="formats_loading && !cachedAvailableFormats[url]">
+                                        <mat-spinner [diameter]="25"></mat-spinner>
+                                    </div>
+                                </mat-form-field>
+                            </div>
+                        </div>
+                    </div>
                     <span *ngIf="results_showing">
                         <span *ngFor="let result of results">
                             <mat-card style="height: 120px; border-radius: 0px">
@@ -29,7 +50,7 @@
                     </span>
                 </form>
                 <br/>
-                <mat-checkbox [(ngModel)]="audioOnly" style="float: left; margin-top: -12px">Only Audio</mat-checkbox>
+                <mat-checkbox (change)="videoModeChanged($event)" [(ngModel)]="audioOnly" style="float: left; margin-top: -12px">Only Audio</mat-checkbox>
                 
             </div>
         </mat-card-content>
@@ -41,16 +62,18 @@
 </div>
 <br/>
 <div class="centered big" id="bar_div" *ngIf="downloadingfile;else nofile">
-    <div [ngClass]="(determinateProgress && percentDownloaded === 100)?'make-room-for-spinner':'equal-sizes'" style="display: inline-block; width: 100%; padding-left: 20px" *ngIf="determinateProgress;else indeterminateprogress">
-        <mat-progress-bar mode="determinate" value="{{percentDownloaded}}"></mat-progress-bar>
-        <br/>
+    <div class="margined">
+        <div [ngClass]="(determinateProgress && percentDownloaded === 100)?'make-room-for-spinner':'equal-sizes'" style="display: inline-block; width: 100%; padding-left: 20px" *ngIf="determinateProgress;else indeterminateprogress">
+            <mat-progress-bar mode="determinate" value="{{percentDownloaded}}"></mat-progress-bar>
+            <br/>
+        </div>
+        <div *ngIf="determinateProgress && percentDownloaded === 100" class="spinner">
+            <mat-spinner [diameter]="25"></mat-spinner>
+        </div>
+        <ng-template #indeterminateprogress>
+            <mat-progress-bar mode="indeterminate"></mat-progress-bar>
+        </ng-template>
     </div>
-    <div *ngIf="determinateProgress && percentDownloaded === 100" class="spinner">
-        <mat-spinner [diameter]="25"></mat-spinner>
-    </div>
-    <ng-template #indeterminateprogress>
-        <mat-progress-bar mode="indeterminate"></mat-progress-bar>
-    </ng-template>
     <br/>
 </div>
 <ng-template #nofile>
diff --git a/src/app/main/main.component.ts b/src/app/main/main.component.ts
index b9a5b7c..896b8c8 100644
--- a/src/app/main/main.component.ts
+++ b/src/app/main/main.component.ts
@@ -39,6 +39,8 @@ export class MainComponent implements OnInit {
   audioFolderPath;
   videoFolderPath;
 
+  cachedAvailableFormats = {};
+
   // youtube api
   youtubeSearchEnabled = false;
   youtubeAPIKey = null;
@@ -52,7 +54,104 @@ export class MainComponent implements OnInit {
 
   urlForm = new FormControl('', [Validators.required]);
 
+  qualityOptions = {
+    'video': [
+      {
+        'resolution': null,
+        'value': '',
+        'label': 'Max'
+      },
+      {
+        'resolution': '3840x2160',
+        'value': '2160',
+        'label': '2160p (4K)'
+      },
+      {
+        'resolution': '2560x1440',
+        'value': '1440',
+        'label': '1440p'
+      },
+      {
+        'resolution': '1920x1080',
+        'value': '1080',
+        'label': '1080p'
+      },
+      {
+        'resolution': '1280x720',
+        'value': '720',
+        'label': '720p'
+      },
+      {
+        'resolution': '720x480',
+        'value': '480',
+        'label': '480p'
+      },
+      {
+        'resolution': '480x360',
+        'value': '360',
+        'label': '360p'
+      },
+      {
+        'resolution': '360x240',
+        'value': '240',
+        'label': '240p'
+      },
+      {
+        'resolution': '256x144',
+        'value': '144',
+        'label': '144p'
+      }
+    ],
+    'audio': [
+      {
+        'kbitrate': null,
+        'value': '',
+        'label': 'Max'
+      },
+      {
+        'kbitrate': '256',
+        'value': '256K',
+        'label': '256 Kbps'
+      },
+      {
+        'kbitrate': '160',
+        'value': '160K',
+        'label': '160 Kbps'
+      },
+      {
+        'kbitrate': '128',
+        'value': '128K',
+        'label': '128 Kbps'
+      },
+      {
+        'kbitrate': '96',
+        'value': '96K',
+        'label': '96 Kbps'
+      },
+      {
+        'kbitrate': '70',
+        'value': '70K',
+        'label': '70 Kbps'
+      },
+      {
+        'kbitrate': '50',
+        'value': '50K',
+        'label': '50 Kbps'
+      },
+      {
+        'kbitrate': '32',
+        'value': '32K',
+        'label': '32 Kbps'
+      }
+    ]
+  }
+
+  selectedQuality = '';
+  formats_loading = false;
+
   @ViewChild('urlinput', { read: ElementRef, static: false }) urlInput: ElementRef;
+  last_valid_url = '';
+  last_url_check = 0;
 
   constructor(private postsService: PostsService, private youtubeSearch: YoutubeSearchService, public snackBar: MatSnackBar,
     private router: Router) {
@@ -67,7 +166,8 @@ export class MainComponent implements OnInit {
       this.baseStreamPath = result['YoutubeDLMaterial']['Downloader']['path-base'];
       this.audioFolderPath = result['YoutubeDLMaterial']['Downloader']['path-audio'];
       this.videoFolderPath = result['YoutubeDLMaterial']['Downloader']['path-video'];
-      this.youtubeSearchEnabled = result['YoutubeDLMaterial']['API'] && result['YoutubeDLMaterial']['API']['use_youtube_API'];
+      this.youtubeSearchEnabled = result['YoutubeDLMaterial']['API'] && result['YoutubeDLMaterial']['API']['use_youtube_API'] &&
+          result['YoutubeDLMaterial']['API']['youtube_API_key'];
       this.youtubeAPIKey = this.youtubeSearchEnabled ? result['YoutubeDLMaterial']['API']['youtube_API_key'] : null;
 
       this.postsService.path = backendUrl;
@@ -150,17 +250,18 @@ export class MainComponent implements OnInit {
     if (forceView === false && this.downloadOnlyMode && !this.iOS) {
       if (is_playlist) {
         for (let i = 0; i < name.length; i++) {
-          this.downloadAudioFile(name[i]);
+          this.downloadAudioFile(decodeURI(name[i]));
         }
       } else {
-        this.downloadAudioFile(name);
+        this.downloadAudioFile(decodeURI(name));
       }
     } else {
       if (is_playlist) {
         this.router.navigate(['/player', {fileNames: name.join('|nvr|'), type: 'audio'}]);
         // window.location.href = this.baseStreamPath + this.audioFolderPath + name[0] + '.mp3';
       } else {
-        window.location.href = this.baseStreamPath + this.audioFolderPath + name + '.mp3';
+        this.router.navigate(['/player', {fileNames: name, type: 'audio'}]);
+        // window.location.href = this.baseStreamPath + this.audioFolderPath + name + '.mp3';
       }
     }
 
@@ -177,10 +278,10 @@ export class MainComponent implements OnInit {
     if (forceView === false && this.downloadOnlyMode) {
       if (is_playlist) {
         for (let i = 0; i < name.length; i++) {
-          this.downloadVideoFile(name[i]);
+          this.downloadVideoFile(decodeURI(name[i]));
         }
       } else {
-        this.downloadVideoFile(name);
+        this.downloadVideoFile(decodeURI(name));
       }
     } else {
       if (is_playlist) {
@@ -206,7 +307,17 @@ export class MainComponent implements OnInit {
 
       if (this.audioOnly) {
         this.downloadingfile = true;
-        this.postsService.makeMP3(this.url).subscribe(posts => {
+
+        let customQualityConfiguration = null;
+        if (this.selectedQuality !== '') {
+          const cachedFormatsExists = this.cachedAvailableFormats[this.url];
+          if (cachedFormatsExists) {
+            const audio_formats = this.cachedAvailableFormats[this.url]['audio'];
+            customQualityConfiguration = audio_formats[this.selectedQuality]['format_id'];
+          }
+        }
+        this.postsService.makeMP3(this.url, (this.selectedQuality === '' ? null : this.selectedQuality),
+          customQualityConfiguration).subscribe(posts => {
           const is_playlist = !!(posts['file_names']);
           this.path = is_playlist ? posts['file_names'] : posts['audiopathEncoded'];
           if (this.path !== '-1') {
@@ -217,8 +328,20 @@ export class MainComponent implements OnInit {
           this.openSnackBar('Download failed!', 'OK.');
         });
       } else {
+        let customQualityConfiguration = null;
+        const cachedFormatsExists = this.cachedAvailableFormats[this.url];
+        if (cachedFormatsExists) {
+          const video_formats = this.cachedAvailableFormats[this.url]['video'];
+          if (video_formats['best_audio_format'] && this.selectedQuality !== ''/* &&
+              video_formats[this.selectedQuality]['acodec'] === 'none'*/) {
+                console.log(this.selectedQuality);
+              customQualityConfiguration = video_formats[this.selectedQuality]['format_id'] + '+' + video_formats['best_audio_format'];
+          }
+        }
+
         this.downloadingfile = true;
-        this.postsService.makeMP4(this.url).subscribe(posts => {
+        this.postsService.makeMP4(this.url, (this.selectedQuality === '' ? null : this.selectedQuality),
+          customQualityConfiguration).subscribe(posts => {
           const is_playlist = !!(posts['file_names']);
           this.path = is_playlist ? posts['file_names'] : posts['videopathEncoded'];
           if (this.path !== '-1') {
@@ -239,10 +362,13 @@ export class MainComponent implements OnInit {
       const blob: Blob = res;
       saveAs(blob, name + '.mp3');
 
-      // tell server to delete the file once downloaded
-      this.postsService.deleteFile(name, true).subscribe(delRes => {
-
-      });
+      if (!this.fileManagerEnabled) {
+        // tell server to delete the file once downloaded
+        this.postsService.deleteFile(name, true).subscribe(delRes => {
+          // reload mp3s
+          this.getMp3s();
+        });
+      }
     });
   }
 
@@ -251,10 +377,13 @@ export class MainComponent implements OnInit {
       const blob: Blob = res;
       saveAs(blob, name + '.mp4');
 
-      // tell server to delete the file once downloaded
-      this.postsService.deleteFile(name, false).subscribe(delRes => {
-
-      });
+      if (!this.fileManagerEnabled) {
+        // tell server to delete the file once downloaded
+        this.postsService.deleteFile(name, false).subscribe(delRes => {
+          // reload mp4s
+          this.getMp4s();
+        });
+      }
     });
   }
 
@@ -291,7 +420,22 @@ export class MainComponent implements OnInit {
     // tslint:disable-next-line: max-line-length
     const strRegex = /((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[\w]*))?)/;
     const re = new RegExp(strRegex);
-    return re.test(str);
+    const valid = re.test(str);
+
+    if (!valid) { return false; }
+
+    // tslint:disable-next-line: max-line-length
+    const youtubeStrRegex = /(?:http(?:s)?:\/\/)?(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:(?:watch)?\?(?:.*&)?v(?:i)?=|(?:embed|v|vi|user)\/))([^\?&\"'<> #]+)/;
+    const reYT = new RegExp(youtubeStrRegex);
+    const ytValid = reYT.test(str);
+    if (valid && ytValid && Date.now() - this.last_url_check > 1000) {
+      if (str !== this.last_valid_url) {
+        // get info
+        this.getURLInfo(str);
+      }
+      this.last_valid_url = str;
+    }
+    return valid;
   }
 
   // snackbar helper
@@ -301,6 +445,22 @@ export class MainComponent implements OnInit {
     });
   }
 
+  getURLInfo(url) {
+    console.log(this.cachedAvailableFormats[url]);
+    if (!(this.cachedAvailableFormats[url])) {
+      this.formats_loading = true;
+      console.log('has no cached formats available');
+      this.postsService.getFileInfo([url], 'irrelevant', true).subscribe(res => {
+        if (url === this.url) { this.formats_loading = false; }
+        const infos = res['result'];
+        const parsed_infos = this.getAudioAndVideoFormats(infos.formats);
+        console.log('got formats for ' + url);
+        const available_formats = {audio: parsed_infos[0], video: parsed_infos[1]};
+        this.cachedAvailableFormats[url] = available_formats;
+      });
+    }
+  }
+
   attachToInput() {
     Observable.fromEvent(this.urlInput.nativeElement, 'keyup')
       .map((e: any) => e.target.value)           // extract the value of input
@@ -334,5 +494,71 @@ export class MainComponent implements OnInit {
   onResize(event) {
     this.files_cols = (event.target.innerWidth <= 450) ? 2 : 4;
   }
+
+  videoModeChanged(new_val) {
+    this.selectedQuality = '';
+  }
+
+  getAudioAndVideoFormats(formats): any[] {
+    const audio_formats = {};
+    const video_formats = {};
+
+    for (let i = 0; i < formats.length; i++) {
+      const format_obj = {type: null};
+
+      const format = formats[i];
+      const format_type = (format.vcodec === 'none') ? 'audio' : 'video';
+
+      format_obj.type = format_type;
+      // console.log(format);
+      if (format_obj.type === 'audio' && format.abr) {
+        const key = format.abr.toString() + 'K';
+        format_obj['bitrate'] = format.abr;
+        format_obj['format_id'] = format.format_id;
+        format_obj['ext'] = format.ext;
+        // don't overwrite if not m4a
+        if (audio_formats[key]) {
+          if (format.ext === 'm4a') {
+            audio_formats[key] = format_obj;
+          }
+        } else {
+          audio_formats[key] = format_obj;
+        }
+      } else if (format_obj.type === 'video') {
+        // check if video format is mp4
+        const key = format.height.toString();
+        if (format.ext === 'mp4') {
+          format_obj['height'] = format.height;
+          format_obj['acodec'] = format.acodec;
+          format_obj['format_id'] = format.format_id;
+
+          // no acodec means no overwrite
+          if (!(video_formats[key]) || format_obj['acodec'] !== 'none') {
+            video_formats[key] = format_obj;
+          }
+        }
+      }
+    }
+
+    video_formats['best_audio_format'] = this.getBestAudioFormatForMp4(audio_formats);
+
+    return [audio_formats, video_formats]
+  }
+
+  getBestAudioFormatForMp4(audio_formats) {
+    let best_audio_format_for_mp4 = null;
+    let best_audio_format_bitrate = 0;
+    const available_audio_format_keys = Object.keys(audio_formats);
+    for (let i = 0; i < available_audio_format_keys.length; i++) {
+      const audio_format_key = available_audio_format_keys[i];
+      const audio_format = audio_formats[audio_format_key];
+      const is_m4a = audio_format.ext === 'm4a';
+      if (is_m4a && audio_format.bitrate > best_audio_format_bitrate) {
+        best_audio_format_for_mp4 = audio_format.format_id;
+        best_audio_format_bitrate = audio_format.bitrate;
+      }
+    }
+    return best_audio_format_for_mp4;
+  }
 }