From 214e296b04999d1f10fb4b9eae1a1247bdd13e74 Mon Sep 17 00:00:00 2001
From: Ilya Grigorik <ilya@igvita.com>
Date: Sun, 29 Mar 2015 11:01:55 -0700
Subject: [PATCH] set min/max on playback speed

Video playback range in Chrome: [0.0625, 16]
Audio playback range in Chrome: [0.05, 4]

Setting min to 0.05 and max to 16, since outside of this range you're
not getting audio or video.

closes #26
---
 inject.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/inject.js b/inject.js
index 29add4a..87647f8 100644
--- a/inject.js
+++ b/inject.js
@@ -102,9 +102,13 @@ chrome.extension.sendMessage({}, function(response) {
             if (action === 'rewind') {
               v.currentTime -= rewindTime;
             } else if (action === 'faster') {
-              v.playbackRate += speedStep
+              // Maxium playback speed in Chrome is set to 16:
+              // https://code.google.com/p/chromium/codesearch#chromium/src/media/blink/webmediaplayer_impl.cc&l=64
+              v.playbackRate = Math.Min(v.playbackRate + speedStep, 16);
             } else if (action === 'slower') {
-              v.playbackRate = Math.max(v.playbackRate - speedStep, 0.00);
+              // Audio playback is cut at 0.05:
+              // https://code.google.com/p/chromium/codesearch#chromium/src/media/filters/audio_renderer_algorithm.cc&l=49
+              v.playbackRate = Math.max(v.playbackRate - speedStep, 0.05);
             }
           }
         });