video speed control 1/1.5/2.0

javascript: (function() {
    var speeds = [1, 1.5, 2];
    var currentSpeedIndex = parseInt(localStorage.getItem('videoSpeedIndex') || '0');

    function showFixedSpeedIndicator(message, duration) {
        var speedIndicator = document.querySelector('.fixed-speed-indicator');
        if (!speedIndicator) {
            speedIndicator = document.createElement('div');
            speedIndicator.className = 'fixed-speed-indicator';
            speedIndicator.style.cssText = 'position:fixed;top:0px;left:50%;transform:translateX(-50%);background-color:rgba(0,0,0,0.7);color:white;padding:0 1px;border-radius:0 0 3px 3px;font-size:14px;font-family:Arial,sans-serif;z-index:999999;transition:opacity 0.3s;opacity:0;display:none;';
            document.body.appendChild(speedIndicator);
        }
        speedIndicator.textContent = message;
        speedIndicator.style.opacity = '1';
        speedIndicator.style.display = 'block';
        setTimeout(function() {
            speedIndicator.style.opacity = '0';
            setTimeout(() => {
                speedIndicator.style.display = 'none';
            }, 300);
        }, duration);
    }

    function applyToVideo(v, showIndicator = false) {
        if (v.playbackRate !== undefined) {
            v.playbackRate = speeds[currentSpeedIndex];
            if (showIndicator) {
                if (!window.location.href.includes('rutube.ru/shorts/') && !window.location.href.includes('dzen.ru') && !window.location.href.includes('my.mail.ru') && !window.location.href.includes('pikabu.ru') && !window.location.href.includes('store.steampowered.com') && !window.location.href.includes('wink.ru')) {
                    var container = v.closest('.jwplayer') || v.closest('.video_box_wrap') || v.closest('.player') || v.closest('.vjs_video') || v.closest('.video-js') || v.parentElement;
                    container.style.position = 'relative';
                    var speedIndicator = container.querySelector('.speed-indicator');
                    if (!speedIndicator) {
                        speedIndicator = document.createElement('div');
                        speedIndicator.className = 'speed-indicator';
                        speedIndicator.style.cssText = 'position:absolute;top:0px;left:50%;transform:translateX(-50%);background-color:rgba(0,0,0,0.7);color:white;padding:0 1px;border-radius:0 0 3px 3px;font-size:14px;font-family:Arial,sans-serif;z-index:999999;transition:opacity 0.3s;opacity:0;display:none;';
                        container.appendChild(speedIndicator);
                    }
                    speedIndicator.textContent = v.playbackRate.toFixed(1) + 'x';
                    speedIndicator.style.opacity = '1';
                    speedIndicator.style.display = 'block';
                    setTimeout(() => {
                        speedIndicator.style.opacity = '0';
                        setTimeout(() => {
                            speedIndicator.style.display = 'none';
                        }, 300);
                    }, 1000);
                } else {
                    showFixedSpeedIndicator(v.playbackRate.toFixed(1) + 'x', 1000);
                }
            }
        }
    }
function changeSpeed() {
    var videos = document.querySelectorAll('video');
    if (videos.length > 0) {
        var currentSpeed = videos[0].playbackRate;
        var currentIndex = speeds.indexOf(currentSpeed);
        if (currentIndex === -1) {
            currentIndex = speeds.findIndex(speed => speed > currentSpeed) - 1;
            if (currentIndex === -2) currentIndex = speeds.length - 1;
        }
        currentSpeedIndex = (currentIndex + 1) % speeds.length;
        localStorage.setItem('videoSpeedIndex', currentSpeedIndex);
        videos.forEach(v => applyToVideo(v, true));
    } else {
        showFixedSpeedIndicator('No video found on this page', 2000);
    }
}

function handleNewVideos(mutations) {
    mutations.forEach(function(mutation) {
        if (mutation.addedNodes) {
            mutation.addedNodes.forEach(function(node) {
                if (node.nodeName === 'VIDEO') {
                    applyToVideo(node, false);
                } else if (node.classList && (node.classList.contains('jwplayer') || node.classList.contains('player') || node.classList.contains('vjs_video') || node.classList.contains('video-js'))) {
                    var video = node.querySelector('video');
                    if (video) {
                        applyToVideo(video, false);
                    }
                } else if (node.querySelector) {
                    var videos = node.querySelectorAll('video');
                    videos.forEach(v => applyToVideo(v, false));
                }
            });
        }
    });
}

function checkAndApplySpeed() {
    document.querySelectorAll('video').forEach(v => {
        if (v.playbackRate !== speeds[currentSpeedIndex]) {
            applyToVideo(v, false);
        }
    });
}

document.addEventListener('seeked', function(e) {
    if (e.target.tagName === 'VIDEO') {
        setTimeout(() => applyToVideo(e.target, false), 0);
    }
}, true);

['loadedmetadata', 'canplay', 'playing'].forEach(function(event) {
    document.addEventListener(event, function(e) {
        if (e.target.tagName === 'VIDEO') {
            applyToVideo(e.target, false);
        }
    }, true);
});

var observer = new MutationObserver(handleNewVideos);
observer.observe(document.body, {
    childList: true,
    subtree: true
});

var videos = document.querySelectorAll('video');
if (videos.length > 0) {
    var currentSpeed = videos[0].playbackRate;
    var currentIndex = speeds.indexOf(currentSpeed);
    if (currentIndex === -1) {
        currentIndex = speeds.findIndex(speed => speed > currentSpeed) - 1;
        if (currentIndex === -2) currentIndex = speeds.length - 1;
    }
    currentSpeedIndex = currentIndex;
    localStorage.setItem('videoSpeedIndex', currentSpeedIndex);
}

videos.forEach(v => applyToVideo(v, false));

document.addEventListener('play', function(e) {
    if (e.target.tagName === 'VIDEO') {
        applyToVideo(e.target, false);
    }
}, true);

window.addEventListener('popstate', checkAndApplySpeed);

changeSpeed();
})();