From 8264206f0999a19b131ce816b1e5b783d119fc87 Mon Sep 17 00:00:00 2001
From: ElementalAlchemist <ElementAlchemist7@gmail.com>
Date: Tue, 14 Nov 2023 19:26:02 -0600
Subject: [PATCH] Add 4x and 8x playback speeds (#362)

* Add 4x and 8x playback speeds

* Make the "max speed" keyboard shortcut go to 2x first and then to the actual max speed
---
 thrimbletrimmer/edit.html                     | 2 +-
 thrimbletrimmer/index.html                    | 2 +-
 thrimbletrimmer/scripts/common.js             | 2 +-
 thrimbletrimmer/scripts/keyboard-shortcuts.js | 7 ++++++-
 4 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/thrimbletrimmer/edit.html b/thrimbletrimmer/edit.html
index 706c5c5..c59aa40 100644
--- a/thrimbletrimmer/edit.html
+++ b/thrimbletrimmer/edit.html
@@ -38,7 +38,7 @@
 					<li>Period (.): Forward 1 frame</li>
 					<li>Equals (=): Increase playback speed one step</li>
 					<li>Hyphen (-): Decrease playback speed one step</li>
-					<li>Shift+=: Maximum playback speed</li>
+					<li>Shift+=: 2x or maximum playback speed</li>
 					<li>Shift+-: Minimum playback speed</li>
 					<li>Backspace: Reset playback speed to 1x</li>
 					<li>
diff --git a/thrimbletrimmer/index.html b/thrimbletrimmer/index.html
index ac2cd01..fe5eab3 100644
--- a/thrimbletrimmer/index.html
+++ b/thrimbletrimmer/index.html
@@ -32,7 +32,7 @@
 					<li>Period (.): Forward 1 frame</li>
 					<li>Equals (=): Increase playback speed one step</li>
 					<li>Hyphen (-): Decrease playback speed one step</li>
-					<li>Shift+=: Maximum playback speed</li>
+					<li>Shift+=: 2x or maximum playback speed</li>
 					<li>Shift+-: Minimum playback speed</li>
 					<li>Backspace: Reset playback speed to 1x</li>
 				</ul>
diff --git a/thrimbletrimmer/scripts/common.js b/thrimbletrimmer/scripts/common.js
index 6ce6d50..c8ff59a 100644
--- a/thrimbletrimmer/scripts/common.js
+++ b/thrimbletrimmer/scripts/common.js
@@ -18,7 +18,7 @@ Hls.DefaultConfig.maxBufferHole = 600;
 
 const VIDEO_FRAMES_PER_SECOND = 30;
 
-const PLAYBACK_RATES = [0.25, 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2];
+const PLAYBACK_RATES = [0.25, 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 4, 8];
 
 function commonPageSetup() {
 	if (!Hls.isSupported()) {
diff --git a/thrimbletrimmer/scripts/keyboard-shortcuts.js b/thrimbletrimmer/scripts/keyboard-shortcuts.js
index 6ec8fd0..497b3ab 100644
--- a/thrimbletrimmer/scripts/keyboard-shortcuts.js
+++ b/thrimbletrimmer/scripts/keyboard-shortcuts.js
@@ -100,7 +100,12 @@ document.addEventListener("keypress", (event) => {
 			increaseSpeed();
 			break;
 		case "+":
-			setSpeed(videoElement, PLAYBACK_RATES[PLAYBACK_RATES.length - 1]);
+			const playbackRate = videoElement.playbackRate;
+			if (playbackRate < 2) {
+				setSpeed(videoElement, 2);
+			} else {
+				setSpeed(videoElement, PLAYBACK_RATES[PLAYBACK_RATES.length - 1]);
+			}
 			break;
 		case "-":
 			decreaseSpeed();