mirror of
https://github.com/zhw2590582/ArtPlayer.git
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feat: Update artplayer-proxy-canvas to support canvas proxy
This commit is contained in:
Harvey Zack committed
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813528f916
commit
a4be7b0ee6
3 files changed
+154
-59
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@@ -160,6 +160,7 @@ function artplayerProxyCanvas(callback) {
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...methods,
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...prototypes
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];
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// 存储 canvas 的原始属性
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const originalCanvasProperties = {};
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[
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"width",
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@@ -195,51 +196,90 @@ function artplayerProxyCanvas(callback) {
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});
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}
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});
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let lastDrawTime = 0;
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const drawFrame = (timestamp)=>{
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if (!video.paused && !video.ended) {
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if (timestamp - lastDrawTime > 1000 / 30) {
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ctx.drawImage(video, 0, 0, canvas.width, canvas.height);
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lastDrawTime = timestamp;
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}
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animationFrame = requestAnimationFrame(drawFrame);
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const drawFrame = async ()=>{
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if (!video.videoWidth || !video.videoHeight) {
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console.log("Video dimensions not ready yet");
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return;
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}
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try {
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if (video.readyState >= 2) {
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// HAVE_CURRENT_DATA or higher
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// 使用 createImageBitmap 进行预处理
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const bitmap = await createImageBitmap(video);
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ctx.drawImage(bitmap, 0, 0, canvas.width, canvas.height);
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bitmap.close();
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} else console.log("Video not ready for frame extraction");
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} catch (error) {
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console.error("Error drawing video frame:", error);
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}
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};
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// 使用 requestVideoFrameCallback 进行精确同步
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let videoFrameCallback;
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if ("requestVideoFrameCallback" in HTMLVideoElement.prototype) videoFrameCallback = ()=>{
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drawFrame();
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video.requestVideoFrameCallback(videoFrameCallback);
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};
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else // 降级方案：使用 requestAnimationFrame
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videoFrameCallback = ()=>{
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drawFrame();
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animationFrame = requestAnimationFrame(videoFrameCallback);
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};
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const resize = ()=>{
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const player = art.template?.$player;
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if (!player || option.autoSize) return;
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const aspectRatio = canvas.videoWidth / canvas.videoHeight;
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const containerWidth = player.clientWidth;
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const containerHeight = player.clientHeight;
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const containerRatio = containerWidth / containerHeight;
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let paddingLeft = 0;
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let paddingTop = 0;
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if (containerRatio > aspectRatio) {
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const canvasWidth = containerHeight * aspectRatio;
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paddingLeft = (containerWidth - canvasWidth) / 2;
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} else {
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const canvasHeight = containerWidth / aspectRatio;
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paddingTop = (containerHeight - canvasHeight) / 2;
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try {
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const player = art.template?.$player;
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if (!player || option.autoSize) return;
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const aspectRatio = video.videoWidth / video.videoHeight;
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const containerWidth = player.clientWidth;
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const containerHeight = player.clientHeight;
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const containerRatio = containerWidth / containerHeight;
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let canvasWidth, canvasHeight;
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if (containerRatio > aspectRatio) {
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canvasHeight = containerHeight;
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canvasWidth = canvasHeight * aspectRatio;
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} else {
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canvasWidth = containerWidth;
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canvasHeight = canvasWidth / aspectRatio;
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}
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// 设置 canvas 大小为实际显示大小
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canvas.width = canvasWidth;
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canvas.height = canvasHeight;
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// 居中 canvas
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const paddingLeft = (containerWidth - canvasWidth) / 2;
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const paddingTop = (containerHeight - canvasHeight) / 2;
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Object.assign(canvas.style, {
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padding: `${paddingTop}px ${paddingLeft}px`
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});
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// 重新绘制当前帧
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drawFrame();
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} catch (error) {
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console.error("Error in resize function:", error);
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}
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Object.assign(canvas.style, {
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padding: `${paddingTop}px ${paddingLeft}px`
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});
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};
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// 在视频元数据加载完成后设置 canvas 尺寸并绘制第一帧
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art.on("video:loadedmetadata", ()=>{
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canvas.width = video.videoWidth;
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canvas.height = video.videoHeight;
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resize();
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});
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// 在视频数据可用时绘制第一帧
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art.on("video:canplay", ()=>{
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drawFrame();
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});
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art.on("video:play", ()=>{
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cancelAnimationFrame(animationFrame);
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animationFrame = requestAnimationFrame(drawFrame);
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if ("requestVideoFrameCallback" in HTMLVideoElement.prototype) video.requestVideoFrameCallback(videoFrameCallback);
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else {
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cancelAnimationFrame(animationFrame);
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animationFrame = requestAnimationFrame(videoFrameCallback);
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}
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});
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art.on("video:pause", ()=>{
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cancelAnimationFrame(animationFrame);
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if (!("requestVideoFrameCallback" in HTMLVideoElement.prototype)) cancelAnimationFrame(animationFrame);
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});
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art.on("resize", resize);
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const destroy = ()=>{
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cancelAnimationFrame(animationFrame);
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if ("requestVideoFrameCallback" in HTMLVideoElement.prototype) video.cancelVideoFrameCallback(videoFrameCallback);
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else cancelAnimationFrame(animationFrame);
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// 清理其他可能的资源...
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};
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art.on("destroy", destroy);
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if (typeof callback === "function") callback.call(art, video, option.url, art);
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@@ -1 +1 @@
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@@ -11,6 +11,7 @@ export default function artplayerProxyCanvas(callback) {
|
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const { propertys, methods, prototypes, events } = constructor.config;
|
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const keys = [...propertys, ...methods, ...prototypes];
|
||||
|
||||
// 存储 canvas 的原始属性
|
||||
const originalCanvasProperties = {};
|
||||
['width', 'height'].forEach((prop) => {
|
||||
originalCanvasProperties[prop] = Object.getOwnPropertyDescriptor(HTMLCanvasElement.prototype, prop);
|
||||
@@ -49,61 +50,115 @@ export default function artplayerProxyCanvas(callback) {
|
||||
}
|
||||
});
|
||||
|
||||
let lastDrawTime = 0;
|
||||
const drawFrame = (timestamp) => {
|
||||
if (!video.paused && !video.ended) {
|
||||
if (timestamp - lastDrawTime > 1000 / 30) {
|
||||
ctx.drawImage(video, 0, 0, canvas.width, canvas.height);
|
||||
lastDrawTime = timestamp;
|
||||
const drawFrame = async () => {
|
||||
if (!video.videoWidth || !video.videoHeight) {
|
||||
console.log('Video dimensions not ready yet');
|
||||
return;
|
||||
}
|
||||
try {
|
||||
if (video.readyState >= 2) {
|
||||
// HAVE_CURRENT_DATA or higher
|
||||
// 使用 createImageBitmap 进行预处理
|
||||
const bitmap = await createImageBitmap(video);
|
||||
ctx.drawImage(bitmap, 0, 0, canvas.width, canvas.height);
|
||||
bitmap.close();
|
||||
} else {
|
||||
console.log('Video not ready for frame extraction');
|
||||
}
|
||||
animationFrame = requestAnimationFrame(drawFrame);
|
||||
} catch (error) {
|
||||
console.error('Error drawing video frame:', error);
|
||||
}
|
||||
};
|
||||
|
||||
// 使用 requestVideoFrameCallback 进行精确同步
|
||||
let videoFrameCallback;
|
||||
if ('requestVideoFrameCallback' in HTMLVideoElement.prototype) {
|
||||
videoFrameCallback = () => {
|
||||
drawFrame();
|
||||
video.requestVideoFrameCallback(videoFrameCallback);
|
||||
};
|
||||
} else {
|
||||
// 降级方案：使用 requestAnimationFrame
|
||||
videoFrameCallback = () => {
|
||||
drawFrame();
|
||||
animationFrame = requestAnimationFrame(videoFrameCallback);
|
||||
};
|
||||
}
|
||||
|
||||
const resize = () => {
|
||||
const player = art.template?.$player;
|
||||
if (!player || option.autoSize) return;
|
||||
try {
|
||||
const player = art.template?.$player;
|
||||
if (!player || option.autoSize) return;
|
||||
|
||||
const aspectRatio = canvas.videoWidth / canvas.videoHeight;
|
||||
const containerWidth = player.clientWidth;
|
||||
const containerHeight = player.clientHeight;
|
||||
const containerRatio = containerWidth / containerHeight;
|
||||
const aspectRatio = video.videoWidth / video.videoHeight;
|
||||
const containerWidth = player.clientWidth;
|
||||
const containerHeight = player.clientHeight;
|
||||
const containerRatio = containerWidth / containerHeight;
|
||||
|
||||
let paddingLeft = 0;
|
||||
let paddingTop = 0;
|
||||
let canvasWidth, canvasHeight;
|
||||
if (containerRatio > aspectRatio) {
|
||||
canvasHeight = containerHeight;
|
||||
canvasWidth = canvasHeight * aspectRatio;
|
||||
} else {
|
||||
canvasWidth = containerWidth;
|
||||
canvasHeight = canvasWidth / aspectRatio;
|
||||
}
|
||||
|
||||
if (containerRatio > aspectRatio) {
|
||||
const canvasWidth = containerHeight * aspectRatio;
|
||||
paddingLeft = (containerWidth - canvasWidth) / 2;
|
||||
} else {
|
||||
const canvasHeight = containerWidth / aspectRatio;
|
||||
paddingTop = (containerHeight - canvasHeight) / 2;
|
||||
// 设置 canvas 大小为实际显示大小
|
||||
canvas.width = canvasWidth;
|
||||
canvas.height = canvasHeight;
|
||||
|
||||
// 居中 canvas
|
||||
const paddingLeft = (containerWidth - canvasWidth) / 2;
|
||||
const paddingTop = (containerHeight - canvasHeight) / 2;
|
||||
|
||||
Object.assign(canvas.style, {
|
||||
padding: `${paddingTop}px ${paddingLeft}px`,
|
||||
});
|
||||
|
||||
// 重新绘制当前帧
|
||||
drawFrame();
|
||||
} catch (error) {
|
||||
console.error('Error in resize function:', error);
|
||||
}
|
||||
|
||||
Object.assign(canvas.style, {
|
||||
padding: `${paddingTop}px ${paddingLeft}px`,
|
||||
});
|
||||
};
|
||||
|
||||
// 在视频元数据加载完成后设置 canvas 尺寸并绘制第一帧
|
||||
art.on('video:loadedmetadata', () => {
|
||||
canvas.width = video.videoWidth;
|
||||
canvas.height = video.videoHeight;
|
||||
resize();
|
||||
});
|
||||
|
||||
// 在视频数据可用时绘制第一帧
|
||||
art.on('video:canplay', () => {
|
||||
drawFrame();
|
||||
});
|
||||
|
||||
art.on('video:play', () => {
|
||||
cancelAnimationFrame(animationFrame);
|
||||
animationFrame = requestAnimationFrame(drawFrame);
|
||||
if ('requestVideoFrameCallback' in HTMLVideoElement.prototype) {
|
||||
video.requestVideoFrameCallback(videoFrameCallback);
|
||||
} else {
|
||||
cancelAnimationFrame(animationFrame);
|
||||
animationFrame = requestAnimationFrame(videoFrameCallback);
|
||||
}
|
||||
});
|
||||
|
||||
art.on('video:pause', () => {
|
||||
cancelAnimationFrame(animationFrame);
|
||||
if (!('requestVideoFrameCallback' in HTMLVideoElement.prototype)) {
|
||||
cancelAnimationFrame(animationFrame);
|
||||
}
|
||||
});
|
||||
|
||||
art.on('resize', resize);
|
||||
|
||||
const destroy = () => {
|
||||
cancelAnimationFrame(animationFrame);
|
||||
if ('requestVideoFrameCallback' in HTMLVideoElement.prototype) {
|
||||
video.cancelVideoFrameCallback(videoFrameCallback);
|
||||
} else {
|
||||
cancelAnimationFrame(animationFrame);
|
||||
}
|
||||
// 清理其他可能的资源...
|
||||
};
|
||||
|
||||
art.on('destroy', destroy);
|
||||
|
||||
Reference in new issue
Block a user