From d0518142599d326bac12a66e0173eb0e2da2c66d Mon Sep 17 00:00:00 2001
From: asuyou <asuyou@users.noreply.github.com>
Date: Thu, 28 Oct 2021 11:19:17 +0100
Subject: Added quality choice based on format

---
 app/dl_formats.py             | 85 +++++++++++++++++++++++++++++++++++++++++++
 app/ytdl.py                   | 26 ++-----------
 ui/src/app/app.component.html | 12 +++---
 ui/src/app/app.component.ts   | 25 ++++++-------
 ui/src/app/formats.ts         | 39 ++++++++++++++++++++
 5 files changed, 145 insertions(+), 42 deletions(-)
 create mode 100644 app/dl_formats.py
 create mode 100644 ui/src/app/formats.ts

diff --git a/app/dl_formats.py b/app/dl_formats.py
new file mode 100644
index 0000000..184f9f9
--- /dev/null
+++ b/app/dl_formats.py
@@ -0,0 +1,85 @@
+def get_format(format: str, quality: str) -> str:
+    """
+    Returns format for download
+
+    Args:
+      format (str): format selected
+      quality (str): quality selected
+
+    Raises:
+      Exception: unknown quality, unknown format
+
+    Returns:
+      dl_format: Formatted download string
+    """
+    audio_fmt = ""
+    video_fmt = ""
+    final_fmt = ""
+
+    if format.startswith("custom: "):
+        final_fmt = format[7:]
+    elif format == "any":
+        final_fmt = "bv*+ba/b"
+    elif format == "mp3":
+        audio_fmt = _get_audio_fmt(quality)
+    elif format == "mp4":
+        audio_fmt = "ba/b"
+        video_fmt = _get_video_fmt(quality)
+    else:
+        raise Exception(f"Unknown format {format}")
+
+    if not final_fmt:
+        final_fmt = video_fmt + audio_fmt
+
+    return final_fmt
+
+
+def get_opts(format: str, quality: str, ytdl_opts: dict) -> dict:
+    """
+    Returns extra download options
+    Mostly postprocessing options
+
+    Args:
+      format (str): format selected
+      quality (str): quality of format selected (needed for some formats)
+      ytdl_opts (dict): current options selected
+
+    Returns:
+      ytdl_opts: Extra options
+    """
+    if "postprocessors" not in ytdl_opts:
+        ytdl_opts["postprocessors"] = []
+
+    if format == "mp3":
+        extra_args = {}
+        if quality != "best":
+            extra_args = {"preferredquality": quality}
+        ytdl_opts["postprocessors"].append(
+            {"key": "FFmpegExtractAudio", "preferredcodec": "mp3", **extra_args},
+        )
+
+    elif format == "mp4":
+        ytdl_opts["merge_output_format"] = "mp4"
+
+    return ytdl_opts
+
+
+def _get_audio_fmt(quality: str) -> str:
+    if quality == "best" or quality in ("128", "192", "320"):
+        audio_fmt = "ba/b"
+        # Audio quality needs to be set post-download, set in opts
+    else:
+        raise Exception(f"Unknown quality {quality}")
+
+    return audio_fmt
+
+
+def _get_video_fmt(quality: str) -> str:
+    if quality == "best":
+        video_fmt = "bv*+"
+    elif quality in ("1440", "1080", "720", "480"):
+        video_fmt = f"bv[height<={quality}]+"
+    else:
+        raise Exception(f"Unknown quality {quality}")
+
+    return video_fmt
diff --git a/app/ytdl.py b/app/ytdl.py
index 0400877..63c3786 100644
--- a/app/ytdl.py
+++ b/app/ytdl.py
@@ -4,6 +4,7 @@ from collections import OrderedDict
 import asyncio
 import multiprocessing
 import logging
+from dl_formats import get_format, get_opts
 
 log = logging.getLogger('ytdl')
 
@@ -36,29 +37,8 @@ class Download:
     def __init__(self, download_dir, output_template, quality, format, ytdl_opts, info):
         self.download_dir = download_dir
         self.output_template = output_template
-        vfmt, afmt = '', ''
-        if format == 'mp4':
-            vfmt, afmt = '[ext=mp4]', '[ext=m4a]'
-        elif format == 'mp3':
-            afmt = '/best'
-            ytdl_opts["writethumbnail"] = True
-            ytdl_opts["postprocessors"] = [
-                {"key": "FFmpegExtractAudio", "preferredcodec": "mp3"},
-                {"key": "EmbedThumbnail"},
-            ]
-
-        if quality == 'best':
-            self.format = f'bestvideo{vfmt}+bestaudio{afmt}/best{vfmt}'
-        elif quality in ('1440p', '1080p', '720p', '480p'):
-            res = quality[:-1]
-            self.format = f'bestvideo[height<={res}]{vfmt}+bestaudio{afmt}/best[height<={res}]{vfmt}'
-        elif quality == 'audio':
-            self.format = f'bestaudio{afmt}'
-        elif quality.startswith('custom:'):
-            self.format = quality[7:]
-        else:
-            raise Exception(f'unknown quality {quality}')
-        self.ytdl_opts = ytdl_opts
+        self.format = get_format(format, quality)
+        self.ytdl_opts = get_opts(format, quality, ytdl_opts)
         self.info = info
         self.canceled = False
         self.tmpfilename = None
diff --git a/ui/src/app/app.component.html b/ui/src/app/app.component.html
index 20a78b4..1a90d5f 100644
--- a/ui/src/app/app.component.html
+++ b/ui/src/app/app.component.html
@@ -26,20 +26,20 @@
         <div class="col-md-5 add-url-component">
           <div class="input-group">
             <div class="input-group-prepend">
-              <span class="input-group-text">Video quality</span>
+              <span class="input-group-text">Format</span>
             </div>
-            <select class="custom-select" name="quality" [(ngModel)]="quality" (change)="qualityChanged()" [disabled]="addInProgress || downloads.loading">
-              <option *ngFor="let q of qualities" [ngValue]="q.id">{{ q.text }}</option>
+            <select class="custom-select" name="format" [(ngModel)]="format" (change)="formatChanged()" [disabled]="addInProgress || downloads.loading">
+              <option *ngFor="let f of formats" [ngValue]="f.id">{{ f.text }}</option>
             </select>
           </div>
         </div>
         <div class="col-md-4 add-url-component">
           <div class="input-group">
             <div class="input-group-prepend">
-              <span class="input-group-text">Format</span>
+              <span class="input-group-text">Quality</span>
             </div>
-            <select class="custom-select" name="format" [(ngModel)]="format" (change)="formatChanged()" [disabled]="addInProgress || downloads.loading">
-              <option *ngFor="let f of formats" [ngValue]="f.id">{{ f.text }}</option>
+            <select class="custom-select" name="quality" [(ngModel)]="quality" (change)="qualityChanged()" [disabled]="addInProgress || downloads.loading">
+              <option *ngFor="let q of qualities" [ngValue]="q.id">{{ q.text }}</option>
             </select>
           </div>
         </div>
diff --git a/ui/src/app/app.component.ts b/ui/src/app/app.component.ts
index a86bbe1..28b9539 100644
--- a/ui/src/app/app.component.ts
+++ b/ui/src/app/app.component.ts
@@ -5,6 +5,7 @@ import { CookieService } from 'ngx-cookie-service';
 
 import { DownloadsService, Status } from './downloads.service';
 import { MasterCheckboxComponent } from './master-checkbox.component';
+import { Formats, Format, Quality } from './formats';
 
 @Component({
   selector: 'app-root',
@@ -13,20 +14,9 @@ import { MasterCheckboxComponent } from './master-checkbox.component';
 })
 export class AppComponent implements AfterViewInit {
   addUrl: string;
-  qualities: Array<Object> = [
-    {id: "best", text: "Best"},
-    {id: "1440p", text: "1440p"},
-    {id: "1080p", text: "1080p"},
-    {id: "720p", text: "720p"},
-    {id: "480p", text: "480p"},
-    {id: "audio", text: "Audio only"}
-  ];
+  formats: Format[] = Formats;
+  qualities: Quality[];
   quality: string;
-  formats: Array<Object> = [
-    {id: "any", text: "Any"},
-    {id: "mp4", text: "MP4"},
-    {id: "mp3", text: "MP3"}
-  ];
   format: string;
   addInProgress = false;
 
@@ -45,6 +35,8 @@ export class AppComponent implements AfterViewInit {
   constructor(public downloads: DownloadsService, private cookieService: CookieService) {
     this.quality = cookieService.get('metube_quality') || 'best';
     this.format = cookieService.get('metube_format') || 'any';
+    // Needs to be set or qualities won't automatically be set
+    this.setQualities()
   }
 
   ngAfterViewInit() {
@@ -77,6 +69,8 @@ export class AppComponent implements AfterViewInit {
 
   formatChanged() {
     this.cookieService.set('metube_format', this.format, { expires: 3650 });
+    // Updates to use qualities available
+    this.setQualities()
   }
 
   queueSelectionChanged(checked: number) {
@@ -87,6 +81,11 @@ export class AppComponent implements AfterViewInit {
     this.doneDelSelected.nativeElement.disabled = checked == 0;
   }
 
+  setQualities() {
+    // qualities for specific format
+    this.qualities = this.formats.find(el => el.id == this.format).qualities
+  }
+
   addDownload(url?: string, quality?: string, format?: string) {
     url = url ?? this.addUrl
     quality = quality ?? this.quality
diff --git a/ui/src/app/formats.ts b/ui/src/app/formats.ts
new file mode 100644
index 0000000..5264cd0
--- /dev/null
+++ b/ui/src/app/formats.ts
@@ -0,0 +1,39 @@
+export interface Format {
+  id: string;
+  text: string;
+  qualities: Quality[];
+}
+
+export interface Quality {
+  id: string;
+  text: string;
+}
+
+export const Formats: Format[] = [
+  {
+    id: 'any',
+    text: 'Any',
+    qualities: [{ id: 'best', text: 'Best' }],
+  },
+  {
+    id: 'mp4',
+    text: 'MP4',
+    qualities: [
+      { id: 'best', text: 'Best' },
+      { id: '1440', text: '1440p' },
+      { id: '1080', text: '1080p' },
+      { id: '720', text: '720p' },
+      { id: '480', text: '480p' },
+    ],
+  },
+  {
+    id: 'mp3',
+    text: 'MP3',
+    qualities: [
+      { id: 'best', text: 'Best' },
+      { id: '128', text: '128 kbps' },
+      { id: '192', text: '192 kbps' },
+      { id: '320', text: '320 kbps' },
+    ],
+  },
+];
-- 
cgit