layers-samples/media-layer-sample.html - external/github.com/immersive-web/webxr-samples - Git at Google

 <!doctype html>
 <!--
 Copyright 2021 The Immersive Web Community Group

 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
 the Software without restriction, including without limitation the rights to
 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 the Software, and to permit persons to whom the Software is furnished to do so,
 subject to the following conditions:

 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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 <html>
   <head>
     <meta charset='utf-8'>
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
     <link rel='icon' type='image/png' sizes='32x32' href='../favicon-32x32.png'>
     <link rel='icon' type='image/png' sizes='96x96' href='../favicon-96x96.png'>
     <link rel='stylesheet' href='../css/common.css'>
     <title>WebXR Media Layers</title>

   </head>
   <body>
     <header style="max-width: 800px;">
       <details open>
       <summary>Media layer samples</summary>
       <p>
         This sample shows various video resolutions displayed using WebXR Media Layers. On browsers that don't support layers, the <a href="https://github.com/immersive-web/webxr-layers-polyfill">WebXR Layers polyfill</a> will be used.
         <a class="back" href="./">Back</a>
       </p>
       <label>Choose a video</label>
       <select id="videoselect">
         <option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_4.3k_30s_360_h264_crf23_binaural_CREDIT_JON_GRIFFITH_injected.mp4">4.3K H.264 crf23 360</option>
         <option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_5.7k_30s_360_h265_crf23_binaural_CREDIT_JON_GRIFFITH_injected.mp4">5.7K H.265 crf23 360</option>
         <option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_6.2k_30s_180_SBS_h264_crf27_binaural_CREDIT_JON_GRIFFITH_v2.mp4">6.2K H.264 crf27 180 side-by-side</option>
         <option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_6.2k_30s_180_TB_h264_crf27_CREDIT_JON_GRIFFITH-injected.mp4">6.2K H.264 crf27 180 top-bottom</option>
         <option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_8k_30s_180_SBS_h265_crf23_binaural_CREDIT_JON_GRIFFITH-injected.mp4">8K H.265 crf23 180 side-by-side</option>
         <option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_8k_30s_180_TB_h265_crf23_binaural_CREDIT_JON_GRIFFITH-injected.mp4">8K H.265 crf23 180 top-bottom</option>
         <option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_30s_180_SBS_vp8_crf23_binaural_CREDIT_JON_GRIFFITH-injected.webm">VP8 crf23 180 side-by-side</option>
         <option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_4k_30s_180_SBS_av1_crf23_binaural_CREDIT_JON_GRIFFITH-injected.mp4">8K AV1 crf23 180 side-by-side</option>
       </select>
         <button id="xr-button" disabled>XR not found</button>
       </details>
       <p>Many thanks to Eric Cheng and Jon Griffith for the Everest media samples. Check out Jon's work on <a href="https://alpineexposures.com/">https://alpineexposures.com/</a>.
       <p>Pull trigger to restart the video; squeeze to pause.</p>
     </header>
     <main style='text-align: center;'>
     </main>
     <script src="https://immersive-web.github.io/webxr-layers-polyfill/build/webxr-layers-polyfill.js"></script>
     <script>
       (function () {
       'use strict';

       // initialize the polyfill for unsupported devices
       let layersPolyfill = new WebXRLayersPolyfill()

       // XR globals.
       let xrButton = document.getElementById('xr-button');
       let xrSession = null;
       let xrRefSpace = null;
       let xrMediaFactory = null;
       let cylinder_layer = false;

       let video = document.createElement('video');
       video.loop = false;
       video.crossOrigin = "anonymous";
       video.preload = 'auto';
       video.autoload = true;
       function buttonPressedThisFrame(gamepad, index) {
         return (index < gamepad.buttons.length &&
           gamepad.buttons[index].pressed);
       }
       function videoSelect() {
         let s = document.getElementById("videoselect");
         video.src = s.options[s.selectedIndex].value;
         xrButton.textContent = 'Loading video';
         xrButton.disabled = true;
       }

       video.oncanplaythrough = (event) => {
         xrButton.disabled = false;
         xrButton.textContent = 'Enter XR';
       }

       video.onerror = (event) => {
         xrButton.disabled = true;
         xrButton.textContent = 'Can\'t play video' + video.error.message;
       };

       videoSelect();
       document.getElementById("videoselect").addEventListener('change', (event) => {
         videoSelect();
       });

       // Checks to see if WebXR is available and, if so, requests an XRDevice
       // that is connected to the system and tests it to ensure it supports the
       // desired session options.
       function initXR() {
         // Is WebXR available on this UA?
         if (navigator.xr) {
           // If the device allows creation of exclusive sessions set it as the
           // target of the 'Enter XR' button.
           navigator.xr.isSessionSupported('immersive-vr').then((supported) => {
             if (supported) {
               // Updates the button to start an XR session when clicked.
               xrButton.addEventListener('click', onButtonClicked);
               xrButton.disabled = video.readyState > 2;
             }
           });
         }
       }

       // Called when the user clicks the button to enter XR. If we don't have a
       // session we'll request one, and if we do have a session we'll end it.
       function onButtonClicked() {
         if (!xrSession) {
           navigator.xr.requestSession('immersive-vr', {requiredFeatures: ['layers']}).then(onSessionStarted);
           video.play();
         } else {
           xrSession.end();
         }
       }

       // Called when we've successfully acquired a XRSession. In response we
       // will set up the necessary session state and kick off the frame loop.
       function onSessionStarted(session) {
         xrSession = session;
         xrButton.textContent = 'Exit VR';

         // Listen for the sessions 'end' event so we can respond if the user
         // or UA ends the session for any reason.
         session.addEventListener('end', onSessionEnded);

         xrMediaFactory = new XRMediaBinding(session);

         session.requestReferenceSpace('local').then((refSpace) => {
         xrRefSpace = refSpace;

         let angle = Math.PI;
         if (!video.src.includes("180"))
           angle = Math.PI*2;

         let layout = "stereo-top-bottom";
         if (video.src.includes("sbs")||video.src.includes("SBS"))
           layout = "stereo-left-right";

         let layer = xrMediaFactory.createEquirectLayer(video, {space: refSpace, centralHorizontalAngle: angle, layout: layout});
         // let layer = xrMediaFactory.createEquirectLayer(video, {space: refSpace});
         session.updateRenderState({ layers: [ layer ] });

           // Inform the session that we're ready to begin drawing.
         session.requestAnimationFrame(onXRFrame);
         });
       }

       // Called either when the user has explicitly ended the session by calling
       // session.end() or when the UA has ended the session for any reason.
       // At this point the session object is no longer usable and should be
       // discarded.
       function onSessionEnded(event) {
         xrSession = null;
         xrButton.textContent = 'Enter VR';
         video.pause();
       }

       // Called every time the XRSession requests that a new frame be drawn.
       function onXRFrame(time, frame) {
         let session = frame.session;

         // Inform the session that we're ready for the next frame.
         session.requestAnimationFrame(onXRFrame);

         let force_mono = false;
         for (let source of session.inputSources) {
           if (source.gamepad) {
             // Toggle Play/Pause on primary button press
             if (buttonPressedThisFrame(source.gamepad, 0)) {
               video.currentTime = 0;
               video.play();
             } else if (buttonPressedThisFrame(source.gamepad, 1)) {
               if (video.paused)
                 video.play();
               else
                 video.pause();
             }
             force_mono |= buttonPressedThisFrame(source.gamepad, 4);
           }
         }
         xrSession.renderState.layers[0].forceMonoPresentation = force_mono;
       }

       // Start the XR application.
       initXR();

     })();
     </script>
   </body>
 </html>
	<!doctype html>
	<!--
	Copyright 2021 The Immersive Web Community Group

	Permission is hereby granted, free of charge, to any person obtaining a copy of
	this software and associated documentation files (the "Software"), to deal in
	the Software without restriction, including without limitation the rights to
	use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
	the Software, and to permit persons to whom the Software is furnished to do so,
	subject to the following conditions:

	The above copyright notice and this permission notice shall be included in all
	copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
	FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
	COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
	IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	-->
	<html>
	<head>
	<meta charset='utf-8'>
	<meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
	<meta name='mobile-web-app-capable' content='yes'>
	<meta name='apple-mobile-web-app-capable' content='yes'>
	<link rel='icon' type='image/png' sizes='32x32' href='../favicon-32x32.png'>
	<link rel='icon' type='image/png' sizes='96x96' href='../favicon-96x96.png'>
	<link rel='stylesheet' href='../css/common.css'>
	<title>WebXR Media Layers</title>

	</head>
	<body>
	<header style="max-width: 800px;">
	<details open>
	<summary>Media layer samples</summary>
	<p>
	This sample shows various video resolutions displayed using WebXR Media Layers. On browsers that don't support layers, the <a href="https://github.com/immersive-web/webxr-layers-polyfill">WebXR Layers polyfill</a> will be used.
	<a class="back" href="./">Back</a>
	</p>
	<label>Choose a video</label>
	<select id="videoselect">
	<option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_4.3k_30s_360_h264_crf23_binaural_CREDIT_JON_GRIFFITH_injected.mp4">4.3K H.264 crf23 360</option>
	<option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_5.7k_30s_360_h265_crf23_binaural_CREDIT_JON_GRIFFITH_injected.mp4">5.7K H.265 crf23 360</option>
	<option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_6.2k_30s_180_SBS_h264_crf27_binaural_CREDIT_JON_GRIFFITH_v2.mp4">6.2K H.264 crf27 180 side-by-side</option>
	<option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_6.2k_30s_180_TB_h264_crf27_CREDIT_JON_GRIFFITH-injected.mp4">6.2K H.264 crf27 180 top-bottom</option>
	<option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_8k_30s_180_SBS_h265_crf23_binaural_CREDIT_JON_GRIFFITH-injected.mp4">8K H.265 crf23 180 side-by-side</option>
	<option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_8k_30s_180_TB_h265_crf23_binaural_CREDIT_JON_GRIFFITH-injected.mp4">8K H.265 crf23 180 top-bottom</option>
	<option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_30s_180_SBS_vp8_crf23_binaural_CREDIT_JON_GRIFFITH-injected.webm">VP8 crf23 180 side-by-side</option>
	<option value="https://oculus-mp4.s3.amazonaws.com/immersive+video+8K+for+Oculus+Browser/everestvr_4k_30s_180_SBS_av1_crf23_binaural_CREDIT_JON_GRIFFITH-injected.mp4">8K AV1 crf23 180 side-by-side</option>
	</select>
	<button id="xr-button" disabled>XR not found</button>
	</details>
	<p>Many thanks to Eric Cheng and Jon Griffith for the Everest media samples. Check out Jon's work on <a href="https://alpineexposures.com/">https://alpineexposures.com/</a>.
	<p>Pull trigger to restart the video; squeeze to pause.</p>
	</header>
	<main style='text-align: center;'>
	</main>
	<script src="https://immersive-web.github.io/webxr-layers-polyfill/build/webxr-layers-polyfill.js"></script>
	<script>
	(function () {
	'use strict';

	// initialize the polyfill for unsupported devices
	let layersPolyfill = new WebXRLayersPolyfill()

	// XR globals.
	let xrButton = document.getElementById('xr-button');
	let xrSession = null;
	let xrRefSpace = null;
	let xrMediaFactory = null;
	let cylinder_layer = false;

	let video = document.createElement('video');
	video.loop = false;
	video.crossOrigin = "anonymous";
	video.preload = 'auto';
	video.autoload = true;
	function buttonPressedThisFrame(gamepad, index) {
	return (index < gamepad.buttons.length &&
	gamepad.buttons[index].pressed);
	}
	function videoSelect() {
	let s = document.getElementById("videoselect");
	video.src = s.options[s.selectedIndex].value;
	xrButton.textContent = 'Loading video';
	xrButton.disabled = true;
	}

	video.oncanplaythrough = (event) => {
	xrButton.disabled = false;
	xrButton.textContent = 'Enter XR';
	}

	video.onerror = (event) => {
	xrButton.disabled = true;
	xrButton.textContent = 'Can\'t play video' + video.error.message;
	};

	videoSelect();
	document.getElementById("videoselect").addEventListener('change', (event) => {
	videoSelect();
	});

	// Checks to see if WebXR is available and, if so, requests an XRDevice
	// that is connected to the system and tests it to ensure it supports the
	// desired session options.
	function initXR() {
	// Is WebXR available on this UA?
	if (navigator.xr) {
	// If the device allows creation of exclusive sessions set it as the
	// target of the 'Enter XR' button.
	navigator.xr.isSessionSupported('immersive-vr').then((supported) => {
	if (supported) {
	// Updates the button to start an XR session when clicked.
	xrButton.addEventListener('click', onButtonClicked);
	xrButton.disabled = video.readyState > 2;
	}
	});
	}
	}

	// Called when the user clicks the button to enter XR. If we don't have a
	// session we'll request one, and if we do have a session we'll end it.
	function onButtonClicked() {
	if (!xrSession) {
	navigator.xr.requestSession('immersive-vr', {requiredFeatures: ['layers']}).then(onSessionStarted);
	video.play();
	} else {
	xrSession.end();
	}
	}

	// Called when we've successfully acquired a XRSession. In response we
	// will set up the necessary session state and kick off the frame loop.
	function onSessionStarted(session) {
	xrSession = session;
	xrButton.textContent = 'Exit VR';

	// Listen for the sessions 'end' event so we can respond if the user
	// or UA ends the session for any reason.
	session.addEventListener('end', onSessionEnded);

	xrMediaFactory = new XRMediaBinding(session);

	session.requestReferenceSpace('local').then((refSpace) => {
	xrRefSpace = refSpace;

	let angle = Math.PI;
	if (!video.src.includes("180"))
	angle = Math.PI*2;

	let layout = "stereo-top-bottom";
	if (video.src.includes("sbs")\|\|video.src.includes("SBS"))
	layout = "stereo-left-right";

	let layer = xrMediaFactory.createEquirectLayer(video, {space: refSpace, centralHorizontalAngle: angle, layout: layout});
	// let layer = xrMediaFactory.createEquirectLayer(video, {space: refSpace});
	session.updateRenderState({ layers: [ layer ] });

	// Inform the session that we're ready to begin drawing.
	session.requestAnimationFrame(onXRFrame);
	});
	}

	// Called either when the user has explicitly ended the session by calling
	// session.end() or when the UA has ended the session for any reason.
	// At this point the session object is no longer usable and should be
	// discarded.
	function onSessionEnded(event) {
	xrSession = null;
	xrButton.textContent = 'Enter VR';
	video.pause();
	}

	// Called every time the XRSession requests that a new frame be drawn.
	function onXRFrame(time, frame) {
	let session = frame.session;

	// Inform the session that we're ready for the next frame.
	session.requestAnimationFrame(onXRFrame);

	let force_mono = false;
	for (let source of session.inputSources) {
	if (source.gamepad) {
	// Toggle Play/Pause on primary button press
	if (buttonPressedThisFrame(source.gamepad, 0)) {
	video.currentTime = 0;
	video.play();
	} else if (buttonPressedThisFrame(source.gamepad, 1)) {
	if (video.paused)
	video.play();
	else
	video.pause();
	}
	force_mono \|= buttonPressedThisFrame(source.gamepad, 4);
	}
	}
	xrSession.renderState.layers[0].forceMonoPresentation = force_mono;
	}

	// Start the XR application.
	initXR();

	})();
	</script>
	</body>
	</html>