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        <meta charset=utf-8>
        <title>HLS VP9/fMP4 test</title>
        <link rel=stylesheet type=text/css href=video-js/video-js.css>
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    <body>
        <h1>HLS VP9/fMP4 test</h1>

        <h2>Caminandes - Llamigos</h2>

        <ul>
            <li><a href="fmp4-codecs.html">see codec variants</a></li>
            <li><a href="fmp4-tracks.html">see component track list</a></li>
        </ul>

        <h3>With fallbacks</h3>

        <p>HLS with VP9 (.mp4)/MJPEG (.mov) video tracks and Opus/MP3 audio tracks. Video.js enabled to provide HLS-over-MSE for Chrome/Firefox.</p>
        <div>
            <video controls width=640 height=360>
                <source type=application/vnd.apple.mpegurl src=fmp4.vp9-mjpeg.mov.m3u8>
            </video>
        </div>

        <p>Current behavior:</p>
        <p>Browsers that play the VP9 track will get sharp video, those that play the MJPEG track will get blurry video. Audio should sound the same either way.</p>
        <ul>
            <li>MSE-based streaming with VHS
                <ul>
                    <li>Firefox seems to work with VP9 & Opus tracks via video.js</li>
                    <li>Chrome seems unhappy, something in the MSE is not ok with the VP9 first segment?</li>
                    <li>(disabled) Safari uses the MP3 audio tracks and VHS gets confused because it tries to parse them as MP4 (not Safari's fault)</li>
                </ul>
            </li>
            <li>Apple HLS player
                <ul>
                    <li>macOS 13's Safari 16 plays MJPEG.</li>
                    <li>iOS 16 plays VP9 if supported, or MJPEG if no hardware codec</li>
                    <li>Those last two will also play h.263 or MPEG-4 visual <a href="fmp4-lies.html">IF labeled as if h.264 in the playlist</a>; MJPEG can be properly labeled as "jpeg". I haven't found a supported labeling that is correct yet.</li>
                    <li><i>no access to iOS 13-15</i></li>
                    <li>iOS 13 doesn't seem to like mjpeg in .mp4, but .mov is fine</li>
                    <li>iOS 12 doesn't seem to like any version on an old iPad Air, except with h264 video</li>
                    <li><i>no access to iOS 11</i></li>
                    <li>iOS 10 on iPhone 5C plays h.263, or mpeg-4 visual IF labeled as false avc1.blah. It will also play mjpeg if so mislabeled, but only in .mov not in .mp4 as above.</li>
                    <li>iOS 9 doesn't understand the required version of HLS playlist format, and fails.</li>
                </ul>
            </li>
        </ul>

        <script src="node_modules/video.js/dist/video.js"></script>

        <script type="text/javascript">
            let playerConfig = {
                responsive: true,
                controlBar: {
                    volumePanel: {
                        vertical: true,
                        inline: false
                    }
                },
                html5: {
                    vhs: {
                        // Currently the MP3 audio track fails in Safari
                        // and it doesn't grok the Opus
                        // Either fix MP3 handling in vhs or use AAC.
                        // Switching to fragmented QuickTime ;)
                        // seems to be helping maybe?
                        overrideNative: false
                    }
                },
            };
            videojs.log.level('debug');
            
            console.log(typeof MediaSource)
            if (typeof MediaSource !== 'undefined') {
                //let vp9 = MediaSource.isTypeSupported('video/mp4; codecs="vp09.00.41.08"');
                //let opus = MediaSource.isTypeSupported('video/mp4; codecs="opus"');
                //let mp3 = MediaSource.isTypeSupported('audio/mpeg');
                //if (vp9 && (opus || mp3)) {

                for (let video of document.querySelectorAll('video')) {
                    video.classList.add('video-js');
                    video.classList.add('vjs-default-skin');
                    videojs(video, playerConfig);
                }

                // }
            }
        </script>
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