| <!doctype html> |
| <html lang="en"> |
| <head> |
| <meta charset="utf-8"> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <title>Nugget Video Trimmer</title> |
| <style> |
| :root{ |
| --bg:#0e1116; --panel:#161b22; --panel2:#1c232d; --line:#2a323d; |
| --txt:#e6edf3; --dim:#8b98a5; --accent:#4cc2ff; --accent2:#2a9fd6; |
| --ok:#3fb950; --warn:#d29922; --danger:#f85149; |
| --r:10px; |
| } |
| *{box-sizing:border-box} |
| html,body{margin:0;height:100%} |
| body{ |
| background:var(--bg); color:var(--txt); |
| font:14px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; |
| -webkit-font-smoothing:antialiased; |
| } |
| .wrap{max-width:1180px;margin:0 auto;padding:20px 20px 60px} |
| header{display:flex;align-items:center;gap:12px;margin-bottom:18px} |
| header h1{font-size:17px;margin:0;font-weight:600;letter-spacing:.2px} |
| header .sub{color:var(--dim);font-size:12.5px} |
| header .ver{color:var(--dim);font-size:12px;font-variant-numeric:tabular-nums; |
| border:1px solid var(--line);border-radius:99px;padding:3px 10px;background:var(--panel)} |
| .spacer{flex:1} |
|
|
| button{ |
| font:inherit;color:var(--txt);background:var(--panel2);border:1px solid var(--line); |
| padding:7px 13px;border-radius:8px;cursor:pointer;transition:.12s; |
| } |
| button:hover:not(:disabled){background:#242d39;border-color:#3a4553} |
| button:disabled{opacity:.4;cursor:not-allowed} |
| button.primary{background:var(--accent);border-color:var(--accent);color:#04121c;font-weight:600} |
| button.primary:hover:not(:disabled){background:#6bcfff} |
| button.ghost{background:transparent} |
| button.danger{color:#ffb4ae;border-color:#5a2b2b} |
| button.danger:hover:not(:disabled){background:#341c1c;border-color:#7a3a3a} |
| .icobtn{padding:7px 11px;font-variant-numeric:tabular-nums} |
| .small{padding:5px 10px;font-size:12.5px} |
|
|
| /* ---------- drop zone ---------- */ |
| #drop{ |
| border:2px dashed var(--line);border-radius:14px;padding:64px 24px;text-align:center; |
| background:var(--panel);cursor:pointer;transition:.15s; |
| } |
| #drop:hover,#drop.over{border-color:var(--accent);background:#12212b} |
| #drop h2{margin:0 0 6px;font-size:18px;font-weight:600} |
| #drop p{margin:0;color:var(--dim);font-size:13px} |
| #drop .big{font-size:38px;line-height:1;margin-bottom:14px;opacity:.65} |
|
|
| /* ---------- layout ---------- */ |
| #app{display:none} |
| .grid{display:grid;grid-template-columns:1fr 316px;gap:18px;align-items:start} |
| @media(max-width:900px){.grid{grid-template-columns:1fr}} |
|
|
| .card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:14px} |
| .card h3{margin:0 0 12px;font-size:12px;text-transform:uppercase;letter-spacing:.7px;color:var(--dim);font-weight:600} |
|
|
| .stage{background:#000;border-radius:var(--r);overflow:hidden;display:flex;align-items:center;justify-content:center;position:relative;border:1px solid var(--line)} |
| .stage video,.stage canvas{max-width:100%;max-height:56vh;display:block} |
| #exportCanvas{display:none} |
| .badge{position:absolute;top:10px;left:10px;z-index:3;background:rgba(0,0,0,.66);backdrop-filter:blur(4px); |
| padding:4px 9px;border-radius:6px;font-size:11.5px;color:#cfe;letter-spacing:.3px} |
|
|
| /* ---------- crop overlay ---------- */ |
| #cropLayer{position:absolute;display:none;touch-action:none;z-index:2} |
| #cropBox{position:absolute;box-shadow:0 0 0 9999px rgba(4,7,11,.62); |
| border:1px solid rgba(255,255,255,.92);cursor:move;box-sizing:border-box} |
| #cropBox::after{content:"";position:absolute;inset:0;pointer-events:none; |
| background: |
| linear-gradient(to right,transparent calc(33.33% - 0.5px),rgba(255,255,255,.3) calc(33.33% - 0.5px),rgba(255,255,255,.3) calc(33.33% + 0.5px),transparent calc(33.33% + 0.5px),transparent calc(66.66% - 0.5px),rgba(255,255,255,.3) calc(66.66% - 0.5px),rgba(255,255,255,.3) calc(66.66% + 0.5px),transparent calc(66.66% + 0.5px)), |
| linear-gradient(to bottom,transparent calc(33.33% - 0.5px),rgba(255,255,255,.3) calc(33.33% - 0.5px),rgba(255,255,255,.3) calc(33.33% + 0.5px),transparent calc(33.33% + 0.5px),transparent calc(66.66% - 0.5px),rgba(255,255,255,.3) calc(66.66% - 0.5px),rgba(255,255,255,.3) calc(66.66% + 0.5px),transparent calc(66.66% + 0.5px));} |
| .ch{position:absolute;width:16px;height:16px;background:#fff;border:1px solid rgba(0,0,0,.65);border-radius:3px;z-index:2} |
| .ch:hover{background:var(--accent)} |
| .ch[data-h=nw]{left:-8px;top:-8px;cursor:nwse-resize} |
| .ch[data-h=ne]{right:-8px;top:-8px;cursor:nesw-resize} |
| .ch[data-h=sw]{left:-8px;bottom:-8px;cursor:nesw-resize} |
| .ch[data-h=se]{right:-8px;bottom:-8px;cursor:nwse-resize} |
| .ch[data-h=n]{left:calc(50% - 8px);top:-8px;cursor:ns-resize} |
| .ch[data-h=s]{left:calc(50% - 8px);bottom:-8px;cursor:ns-resize} |
| .ch[data-h=w]{left:-8px;top:calc(50% - 8px);cursor:ew-resize} |
| .ch[data-h=e]{right:-8px;top:calc(50% - 8px);cursor:ew-resize} |
| .cropdims{position:absolute;left:50%;transform:translateX(-50%);bottom:5px; |
| background:rgba(0,0,0,.75);color:#dff;padding:2px 8px;border-radius:5px; |
| font-size:11px;font-variant-numeric:tabular-nums;white-space:nowrap;pointer-events:none} |
|
|
| #cropBtn.on{background:var(--accent);border-color:var(--accent);color:#04121c;font-weight:600} |
| #cropBtn.on .kbd{background:rgba(0,0,0,.15);border-color:rgba(0,0,0,.25);color:#04121c} |
| .arlab{color:var(--dim);font-size:11px;text-transform:uppercase;letter-spacing:.6px;margin:2px 0 5px} |
| .arRow{margin-bottom:8px} |
| .arcustom{display:flex;align-items:center;gap:6px;margin-bottom:4px} |
| .arcustom input{width:100%;min-width:0;text-align:center} |
| .arcustom span{color:var(--dim)} |
| .arcustom.on input{border-color:var(--accent)} |
|
|
| /* ---------- transport ---------- */ |
| .transport{display:flex;align-items:center;gap:8px;margin-top:12px;flex-wrap:wrap} |
| .tc{font-variant-numeric:tabular-nums;font-size:13px;color:var(--dim)} |
| .tc b{color:var(--txt);font-weight:600} |
|
|
| /* ---------- timeline ---------- */ |
| .tl-wrap{margin-top:14px;user-select:none} |
| .tl{position:relative;height:70px;background:var(--panel2);border:1px solid var(--line);border-radius:8px;overflow:hidden;touch-action:none;cursor:pointer} |
| #strip{position:absolute;inset:0;display:flex;opacity:.9} |
| #strip canvas{height:100%;flex:1 1 0;min-width:0;object-fit:cover} |
| .mask{position:absolute;top:0;bottom:0;background:rgba(6,9,13,.72);pointer-events:none} |
| .sel{position:absolute;top:0;bottom:0;border-left:2px solid var(--accent);border-right:2px solid var(--accent); |
| box-shadow:inset 0 0 0 1px rgba(76,194,255,.25);pointer-events:none} |
| .handle{position:absolute;top:0;bottom:0;width:16px;margin-left:-8px;cursor:ew-resize;touch-action:none;z-index:5} |
| .handle::after{content:"";position:absolute;left:5px;top:50%;transform:translateY(-50%); |
| width:6px;height:26px;border-radius:3px;background:var(--accent);box-shadow:0 0 0 1px rgba(0,0,0,.4)} |
| .handle:hover::after{background:#8bd8ff} |
| .playhead{position:absolute;top:0;bottom:0;width:2px;margin-left:-1px;background:#fff;pointer-events:none;z-index:6;box-shadow:0 0 6px rgba(255,255,255,.7)} |
| .ruler{display:flex;justify-content:space-between;margin-top:5px;color:var(--dim);font-size:11px;font-variant-numeric:tabular-nums} |
|
|
| /* saved clips drawn along the bottom of the timeline */ |
| #segBand{position:absolute;left:0;right:0;bottom:0;height:16px;pointer-events:none;z-index:4} |
| .segbar{position:absolute;bottom:0;height:16px;min-width:3px;background:rgba(63,185,80,.42); |
| border:1px solid rgba(63,185,80,.95);border-radius:3px;overflow:hidden; |
| font-size:9.5px;line-height:14px;text-align:center;color:#dfffe6;font-weight:600} |
| .segbar.on{background:rgba(76,194,255,.5);border-color:#8bd8ff;color:#eaf7ff} |
|
|
| .marks{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap;align-items:center} |
| .pill{background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:12.5px;font-variant-numeric:tabular-nums} |
| .pill span{color:var(--dim)} |
| .pill b{font-weight:600} |
| .pill.dur b{color:var(--accent)} |
| .edit{cursor:text;border-bottom:1px dotted #4a5663;padding-bottom:1px} |
| .edit:hover{border-bottom-color:var(--accent);color:var(--accent)} |
| .edit input{width:88px;padding:0 3px;border:1px solid var(--accent);border-radius:4px; |
| background:#0b0f14;color:var(--txt);font:inherit;font-weight:600;text-align:center} |
|
|
| /* ---------- clip list ---------- */ |
| #clipsWrap{display:none;margin-top:18px} |
| .clips-head{display:flex;align-items:center;gap:10px;margin-bottom:8px} |
| .clips-head h3{margin:0;font-size:12px;text-transform:uppercase;letter-spacing:.7px;color:var(--dim);font-weight:600} |
| #clipList{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--panel)} |
| .crow{display:flex;align-items:center;gap:10px;padding:7px 10px;border-top:1px solid var(--line);font-size:12.5px} |
| .crow:first-child{border-top:none} |
| .crow:hover{background:var(--panel2)} |
| .crow.on{background:#12212b;box-shadow:inset 2px 0 0 var(--accent)} |
| .cnum{width:20px;color:var(--dim);font-variant-numeric:tabular-nums;flex:none} |
| .cname{flex:1 1 90px;min-width:60px;max-width:230px} |
| .cname input{width:100%;background:transparent;border:1px solid transparent;border-radius:6px; |
| padding:2px 6px;color:var(--txt);font:inherit} |
| .cname input:hover{border-color:var(--line)} |
| .cname input:focus{outline:none;border-color:var(--accent);background:#0b0f14} |
| .cname input::placeholder{color:#5a6572} |
| .ctimes{font-variant-numeric:tabular-nums;color:var(--dim);flex:none} |
| .ctimes b{color:var(--txt);font-weight:600} |
| .cdur{font-variant-numeric:tabular-nums;color:var(--accent);font-weight:600;width:64px;text-align:right;flex:none} |
| .cbtns{display:flex;gap:4px;flex:none} |
| .cbtns button{padding:3px 8px;font-size:11.5px;border-radius:6px} |
| @media(max-width:760px){ .ctimes{display:none} } |
|
|
| /* ---------- settings ---------- */ |
| .row{display:flex;align-items:center;gap:8px;margin-bottom:10px} |
| .row label{flex:0 0 78px;color:var(--dim);font-size:12.5px} |
| input[type=text],input[type=number],select{ |
| font:inherit;background:var(--panel2);color:var(--txt);border:1px solid var(--line); |
| border-radius:7px;padding:6px 8px;width:100%;min-width:0; |
| } |
| input:focus,select:focus{outline:none;border-color:var(--accent)} |
| input[type=range]{width:100%;accent-color:var(--accent)} |
| .seg{display:flex;gap:5px;flex-wrap:wrap;margin-bottom:10px} |
| .seg button{padding:5px 9px;font-size:12.5px;border-radius:7px} |
| .seg button.on{background:var(--accent);border-color:var(--accent);color:#04121c;font-weight:600} |
| .hint{color:var(--dim);font-size:11.5px;margin:-4px 0 12px} |
| .chk{display:flex;align-items:center;gap:7px;color:var(--dim);font-size:12.5px;margin-bottom:10px;cursor:pointer} |
| hr{border:none;border-top:1px solid var(--line);margin:14px 0} |
|
|
| .est{background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:9px 11px;font-size:12.5px;margin-bottom:12px} |
| .est div{display:flex;justify-content:space-between;margin:2px 0} |
| .est span{color:var(--dim)} |
| .est b{font-variant-numeric:tabular-nums;font-weight:600} |
|
|
| #exportBtn{width:100%;padding:11px} |
| #gifBtn{width:100%;padding:9px;margin-top:8px} |
| #stopBtn{width:100%;padding:9px;margin-top:8px;display:none} |
| .bar{height:6px;background:var(--panel2);border-radius:99px;overflow:hidden;margin-top:10px;display:none} |
| .bar i{display:block;height:100%;width:0;background:var(--accent);transition:width .2s} |
| #status{font-size:12px;color:var(--dim);margin-top:8px;text-align:center;min-height:16px} |
|
|
| #result{display:none;margin-top:14px} |
| #result video{width:100%;border-radius:8px;background:#000;border:1px solid var(--line)} |
| #saved{display:none;margin-top:14px;border:1px solid var(--line);border-radius:8px;background:var(--panel2);padding:10px 12px} |
| #saved h4{margin:0 0 6px;font-size:12px;text-transform:uppercase;letter-spacing:.7px;color:var(--dim)} |
| #savedList{margin:0;padding-left:16px;font-size:12px;color:var(--txt);line-height:1.7;max-height:190px;overflow:auto} |
| .note{font-size:11.5px;color:var(--warn);margin-top:8px;line-height:1.4} |
| .kbd{display:inline-block;background:var(--panel2);border:1px solid var(--line);border-bottom-width:2px; |
| border-radius:5px;padding:0 5px;font-size:11px;font-family:ui-monospace,Menlo,Consolas,monospace} |
| .keys{color:var(--dim);font-size:11.5px;margin-top:12px;line-height:1.9} |
| </style> |
| </head> |
| <body> |
| <div class="wrap"> |
|
|
| <header> |
| <h1>Nugget Video Trimmer</h1> |
| <span class="sub">trim · resize · fps · quality</span> |
| <span class="spacer"></span> |
| <button id="newBtn" class="ghost" style="display:none">Load another video</button> |
| <span class="ver">v1.6</span> |
| </header> |
|
|
| <div id="drop"> |
| <div class="big">▢</div> |
| <h2>Drop a video here</h2> |
| <p>or click to choose a file · MP4, MOV, WebM, MKV · nothing is uploaded, it all stays on this computer</p> |
| <input type="file" id="file" accept="video/*" hidden> |
| </div> |
|
|
| <div id="app"> |
| <div class="grid"> |
|
|
| |
| <div> |
| <div class="stage" id="stage"> |
| <video id="video" playsinline></video> |
| <canvas id="exportCanvas"></canvas> |
| <div id="cropLayer"> |
| <div id="cropBox" data-h="move"> |
| <span class="ch" data-h="nw"></span><span class="ch" data-h="n"></span><span class="ch" data-h="ne"></span> |
| <span class="ch" data-h="w"></span><span class="ch" data-h="e"></span> |
| <span class="ch" data-h="sw"></span><span class="ch" data-h="s"></span><span class="ch" data-h="se"></span> |
| <span class="cropdims" id="cropDims"></span> |
| </div> |
| </div> |
| <div class="badge" id="srcBadge"></div> |
| </div> |
|
|
| <div class="transport"> |
| <button id="playBtn" class="icobtn" title="Play / pause (Space)">▶</button> |
| <button id="prevF" class="icobtn" title="Previous frame (←)">⇤</button> |
| <button id="nextF" class="icobtn" title="Next frame (→)">⇥</button> |
| <span class="tc"><b id="curTime">0:00.00</b> / <span id="totTime">0:00.00</span></span> |
| <span class="spacer"></span> |
| <button id="cropBtn" title="Show or hide the crop box (C)">Crop <span class="kbd">C</span></button> |
| <button id="setIn">Set start <span class="kbd">I</span></button> |
| <button id="setOut">Set end <span class="kbd">O</span></button> |
| <button id="loopBtn" class="ghost" title="Loop the selection">Loop: off</button> |
| </div> |
|
|
| <div class="tl-wrap"> |
| <div class="tl" id="tl"> |
| <div id="strip"></div> |
| <div class="mask" id="maskL"></div> |
| <div class="mask" id="maskR"></div> |
| <div class="sel" id="sel"></div> |
| <div id="segBand"></div> |
| <div class="playhead" id="ph"></div> |
| <div class="handle" id="hIn"></div> |
| <div class="handle" id="hOut"></div> |
| </div> |
| <div class="ruler"><span>0:00</span><span id="rulMid"></span><span id="rulEnd"></span></div> |
|
|
| <div class="marks"> |
| <span class="pill"><span>Start</span> <b id="pIn" class="edit" title="Click to type an exact time">0:00.00</b></span> |
| <span class="pill"><span>End</span> <b id="pOut" class="edit" title="Click to type an exact time">0:00.00</b></span> |
| <span class="pill dur"><span>Duration</span> <b id="pDur" class="edit" title="Click to type an exact length, e.g. 30 or 1:30">0:00.00</b></span> |
| <button id="addClip" class="primary small" title="Save this selection to the clip list (A)">+ Add clip <span class="kbd" style="background:rgba(0,0,0,.15);border-color:rgba(0,0,0,.25)">A</span></button> |
| <button id="resetSel" class="ghost small">Reset to full clip</button> |
| </div> |
|
|
| <div class="keys"> |
| <span class="kbd">Space</span> play/pause <span class="kbd">←</span><span class="kbd">→</span> step 1 frame |
| <span class="kbd">Shift</span>+<span class="kbd">←</span><span class="kbd">→</span> step 1 sec |
| <span class="kbd">I</span> set start <span class="kbd">O</span> set end <span class="kbd">A</span> add clip <span class="kbd">C</span> crop <span class="kbd">Home</span>/<span class="kbd">End</span> jump |
| <br>Click <b style="color:var(--txt)">Start</b>, <b style="color:var(--txt)">End</b> or <b style="color:var(--txt)">Duration</b> above to type an exact value — seconds (<code>90</code>) or minutes:seconds (<code>1:30</code>). |
| </div> |
|
|
| |
| <div id="clipsWrap"> |
| <div class="clips-head"> |
| <h3 id="clipsTitle">Clip list</h3> |
| <span class="spacer"></span> |
| <button id="clearClips" class="ghost small">Clear all</button> |
| </div> |
| <div id="clipList"></div> |
| <div class="hint" style="margin-top:8px"> |
| Export uses this list — the timeline selection is only used for adding new clips. |
| Use ▶ to preview a clip, Set to overwrite it with the current timeline selection, ✕ to remove it. Click its times to type exact values. |
| Names are optional and become the file name. |
| </div> |
| </div> |
| </div> |
| </div> |
|
|
| |
| <div> |
| <div class="card"> |
| <div id="cropSection" style="display:none"> |
| <h3>Crop & aspect ratio</h3> |
| <div class="seg arRow"> |
| <button data-ar="0" data-lbl="free">Free</button> |
| <button data-ar="src" data-lbl="original">Original</button> |
| <button data-ar="1" data-lbl="1:1">1:1 square</button> |
| </div> |
| <div class="arlab">Landscape</div> |
| <div class="seg arRow"> |
| <button data-ar="2.33333" data-lbl="21:9">21:9</button> |
| <button data-ar="1.77778" data-lbl="16:9">16:9</button> |
| <button data-ar="1.5" data-lbl="3:2">3:2</button> |
| <button data-ar="1.33333" data-lbl="4:3">4:3</button> |
| </div> |
| <div class="arlab">Portrait</div> |
| <div class="seg arRow"> |
| <button data-ar="0.5625" data-lbl="9:16">9:16</button> |
| <button data-ar="0.5" data-lbl="1:2">1:2</button> |
| <button data-ar="0.66667" data-lbl="2:3">2:3</button> |
| <button data-ar="0.75" data-lbl="3:4">3:4</button> |
| <button data-ar="0.8" data-lbl="4:5">4:5</button> |
| </div> |
| <div class="arlab">Custom</div> |
| <div class="arcustom" id="arCustom"> |
| <input type="number" id="arW" min="1" max="9999" step="1" placeholder="9"> |
| <span>:</span> |
| <input type="number" id="arH" min="1" max="9999" step="1" placeholder="16"> |
| <button id="arApply" class="small">Use</button> |
| </div> |
| <div class="hint" id="cropInfo" style="margin:8px 0"></div> |
| <button id="cropMax" class="small" style="width:100%">Biggest box that fits</button> |
| <hr> |
| </div> |
|
|
| <h3>Size</h3> |
| <div class="seg" id="scaleSeg"> |
| <button data-s="1">100%</button> |
| <button data-s="0.75">75%</button> |
| <button data-s="0.5">50%</button> |
| <button data-s="0.25">25%</button> |
| </div> |
| <div class="row"> |
| <label>Width</label><input type="number" id="w" min="16" step="2"> |
| </div> |
| <div class="row"> |
| <label>Height</label><input type="number" id="h" min="16" step="2"> |
| </div> |
| <label class="chk"><input type="checkbox" id="lockAr" checked> Lock aspect ratio</label> |
| <div class="hint" id="sizeHint"></div> |
|
|
| <hr> |
| <h3>Frame rate</h3> |
| <div class="seg" id="fpsSeg"></div> |
| <div class="row"> |
| <label>Custom</label><input type="number" id="fps" min="1" max="120" step="1"> |
| </div> |
| <div class="hint">Higher than the source frame rate won't add detail.</div> |
|
|
| <hr> |
| <h3>Quality</h3> |
| <input type="range" id="q" min="0" max="100" value="78"> |
| <div class="hint" id="qHint"></div> |
| <label class="chk"><input type="checkbox" id="keepAudio" checked> Include audio</label> |
|
|
| <div class="est"> |
| <div><span>Output</span><b id="eSize">—</b></div> |
| <div><span>Bitrate</span><b id="eRate">—</b></div> |
| <div><span>Encoder</span><b id="eCodec">—</b></div> |
| <div><span id="eBytesLbl">Est. file size</span><b id="eBytes">—</b></div> |
| <div><span>Export takes about</span><b id="eTime">—</b></div> |
| </div> |
|
|
| <button id="exportBtn" class="primary">Export clip</button> |
| <button id="gifBtn">Export as GIF</button> |
| <div class="hint" id="gifHint" style="margin:6px 0 0">GIF has only 256 colours and no sound, and files get large fast. A smaller width and 10–15 fps work best.</div> |
| <button id="stopBtn" class="danger">Stop</button> |
| <div class="bar" id="bar"><i id="barI"></i></div> |
| <div id="status"></div> |
| <div class="hint" id="expNote" style="display:none;margin:8px 0 0;text-align:center"> |
| Leave this tab on screen — if you switch away, the export pauses and picks up when you come back. |
| </div> |
|
|
| <div id="result"> |
| <video id="outVid" controls></video> |
| <img id="outImg" alt="" style="display:none;width:100%;border-radius:8px;background:#000;border:1px solid var(--line)"> |
| <div style="display:flex;gap:8px;margin-top:10px"> |
| <button id="dlBtn" class="primary" style="flex:1">Download again</button> |
| <button id="clearRes" class="ghost">Clear</button> |
| </div> |
| <div class="note" id="outNote"></div> |
| </div> |
|
|
| <div id="saved"> |
| <h4 id="savedWhere">Saved</h4> |
| <ol id="savedList"></ol> |
| <div class="note" id="savedNote"></div> |
| </div> |
| </div> |
| </div> |
|
|
| </div> |
| </div> |
| </div> |
|
|
| <script> |
| "use strict"; |
| (function(){ |
| |
| |
| const $ = id => document.getElementById(id); |
| const clamp = (v,a,b) => Math.min(b, Math.max(a, v)); |
| function tc(t, frac){ |
| if(!isFinite(t)||t<0) t=0; |
| const h = Math.floor(t/3600); |
| const m = Math.floor((t-h*3600)/60), s = t - h*3600 - m*60; |
| const mm = h ? String(m).padStart(2,"0") : String(m); |
| const hh = h ? h+":" : ""; |
| return frac===false ? hh+mm+":"+String(Math.floor(s)).padStart(2,"0") |
| : hh+mm+":"+(s<10?"0":"")+s.toFixed(2); |
| } |
| function stamp(t){ t=Math.max(0,t||0); return Math.floor(t/60)+"m"+String(Math.floor(t%60)).padStart(2,"0")+"s"; } |
| function bytes(n){ |
| if(!isFinite(n)) return "—"; |
| if(n < 1024*1024) return (n/1024).toFixed(0)+" KB"; |
| if(n < 1024*1024*1024) return (n/1048576).toFixed(1)+" MB"; |
| return (n/1073741824).toFixed(2)+" GB"; |
| } |
| function even(n){ n = Math.round(n); return n%2 ? n+1 : n; } |
| function safeName(s, n){ return String(s||"").replace(/[\\/:*?"<>|\x00-\x1f]+/g,"-").replace(/^\.+/,"").trim().slice(0,n||60); } |
| function once(el,ev){ return new Promise(r=>el.addEventListener(ev,r,{once:true})); } |
| |
| |
| const V = $("video"); |
| let srcUrl=null, srcName="clip", dur=0, natW=0, natH=0, srcFps=30; |
| let inT=0, outT=0, looping=false, dragging=null, exporting=false, cancelExport=false; |
| let audioCtx=null, mediaSrc=null, monitorGain=null, streamDest=null; |
| let lastBlob=null, lastExt="webm", lastMeta=null; |
| let segments=[], activeSeg=-1, segId=0; |
| |
| |
| const drop=$("drop"), fileInput=$("file"); |
| fileInput.addEventListener("click", e=>e.stopPropagation()); |
| drop.addEventListener("click", ()=>fileInput.click()); |
| fileInput.addEventListener("change", e=>{ if(e.target.files[0]) load(e.target.files[0]); e.target.value=""; }); |
| ["dragenter","dragover"].forEach(ev=>drop.addEventListener(ev,e=>{e.preventDefault();drop.classList.add("over")})); |
| ["dragleave","drop"].forEach(ev=>drop.addEventListener(ev,e=>{e.preventDefault();drop.classList.remove("over")})); |
| |
| window.addEventListener("dragover", e=>e.preventDefault()); |
| window.addEventListener("drop", e=>{ |
| e.preventDefault(); drop.classList.remove("over"); |
| const f = e.dataTransfer && e.dataTransfer.files[0]; |
| if(f) load(f); |
| }); |
| $("newBtn").addEventListener("click", ()=>fileInput.click()); |
| |
| const DROP_HTML = drop.innerHTML; |
| let loadSeq = 0; |
| let loadedOnce = false; |
| |
| async function load(file){ |
| if(exporting){ alert("Hang on until the export finishes, then load the next video."); return; } |
| if(segments.length && loadedOnce && |
| !confirm("Loading a new video clears the clip list ("+segments.length+" clips). Continue?")) return; |
| |
| const myId = ++loadSeq; |
| const newUrl = URL.createObjectURL(file); |
| const prevUrl = srcUrl; |
| |
| const bail = (msg)=>{ |
| URL.revokeObjectURL(newUrl); |
| if(myId !== loadSeq) return; |
| srcUrl = prevUrl; |
| if(loadedOnce){ |
| if(V.src !== prevUrl && prevUrl){ V.src = prevUrl; } |
| alert(msg+"\n\nYour current video is still open."); |
| }else{ |
| drop.innerHTML = DROP_HTML; drop.style.display="block"; $("app").style.display="none"; |
| alert(msg); |
| } |
| }; |
| |
| srcName = (file.name||"clip").replace(/\.[^.]+$/,"") || "clip"; |
| srcUrl = newUrl; |
| clearResult(); clearSaved(); |
| V.src = newUrl; |
| V.muted = false; |
| |
| const how = await new Promise(res=>{ |
| let settled=false, timer=0; |
| const done = v => { if(settled) return; settled=true; clearTimeout(timer); |
| V.onloadedmetadata=null; V.onerror=null; res(v); }; |
| V.onloadedmetadata = ()=>done("ok"); |
| V.onerror = ()=>done("err"); |
| timer = setTimeout(()=>done("slow"), 120000); |
| }); |
| if(myId !== loadSeq){ URL.revokeObjectURL(newUrl); return; } |
| |
| if(how==="err") return bail("This browser can't open “"+file.name+"”.\n\nTry an MP4, MOV or WebM file — Chrome can't read every format (AVI and some MKVs won't work)."); |
| if(how==="slow") return bail("“"+file.name+"” is taking too long to open. If it's on a network or cloud drive, copy it to this computer first."); |
| |
| dur = V.duration; |
| if(!isFinite(dur) || dur<=0){ |
| try{ |
| V.currentTime = 1e7; |
| await Promise.race([once(V,"seeked"), new Promise(r=>setTimeout(r,2500))]); |
| dur = isFinite(V.duration) ? V.duration : V.currentTime; |
| V.currentTime = 0; |
| await Promise.race([once(V,"seeked"), new Promise(r=>setTimeout(r,1500))]); |
| }catch(e){} |
| } |
| if(myId !== loadSeq){ URL.revokeObjectURL(newUrl); return; } |
| if(!isFinite(dur) || dur<=0) return bail("Couldn't work out how long that video is, so it can't be trimmed. Try converting it to MP4 first."); |
| |
| if(prevUrl) URL.revokeObjectURL(prevUrl); |
| natW = V.videoWidth || 640; natH = V.videoHeight || 360; |
| inT = 0; outT = dur; |
| segments = []; activeSeg = -1; |
| removeCrop(); |
| |
| if(!loadedOnce) drop.innerHTML = '<div class="big">▢</div><h2>Reading video…</h2><p>one moment</p>'; |
| srcFps = 30; |
| await detectFps(); |
| if(myId !== loadSeq) return; |
| |
| loadedOnce = true; |
| drop.style.display="none"; $("app").style.display="block"; $("newBtn").style.display="inline-block"; |
| |
| $("w").value = natW; $("h").value = natH; |
| $("totTime").textContent = tc(dur); |
| $("rulEnd").textContent = tc(dur,false); |
| $("rulMid").textContent = tc(dur/2,false); |
| |
| buildFpsSeg(); |
| $("fps").value = Math.round(srcFps); |
| $("srcBadge").textContent = natW+"×"+natH+" · "+Math.round(srcFps)+" fps · "+tc(dur,false); |
| document.title = srcName+" — Nugget Video Trimmer"; |
| markScale(1); |
| refresh(); update(); |
| buildStrip(newUrl, myId); |
| } |
| |
| |
| async function detectFps(){ |
| if(!("requestVideoFrameCallback" in HTMLVideoElement.prototype)) return; |
| const prevMuted = V.muted; |
| V.muted = true; |
| let stop = false; |
| try{ |
| V.currentTime = Math.min(0.2, dur/4); |
| await Promise.race([once(V,"seeked"), new Promise(r=>setTimeout(r,1500))]); |
| let first=null, last=null, n=0; |
| const done = new Promise(res=>{ |
| const finish = ()=>{ stop=true; res(); }; |
| const cb=(now,md)=>{ |
| if(stop) return; |
| if(first===null) first=md.mediaTime; else { last=md.mediaTime; n++; } |
| if(n>=12 || (last!==null && last-first>0.5)) return finish(); |
| V.requestVideoFrameCallback(cb); |
| }; |
| V.requestVideoFrameCallback(cb); |
| setTimeout(finish, 1400); |
| }); |
| await V.play().catch(()=>{}); |
| await done; |
| if(n>2 && last>first){ |
| const f = n/(last-first); |
| if(f>4 && f<125) srcFps = Math.round(f*100)/100; |
| } |
| }catch(e){} |
| stop = true; |
| try{ V.pause(); }catch(e){} |
| V.muted = prevMuted; |
| V.currentTime = 0; |
| await Promise.race([once(V,"seeked"), new Promise(r=>setTimeout(r,800))]); |
| } |
| |
| |
| async function buildStrip(url, id){ |
| const strip=$("strip"); strip.innerHTML=""; |
| const N=12, tw=160, th=90, total=dur; |
| const v=document.createElement("video"); |
| v.src=url; v.muted=true; v.playsInline=true; |
| try{ |
| await Promise.race([once(v,"loadeddata"), once(v,"error"), new Promise(r=>setTimeout(r,15000))]); |
| }catch(e){ return; } |
| for(let i=0;i<N;i++){ |
| if(id !== loadSeq){ v.removeAttribute("src"); return; } |
| const c=document.createElement("canvas"); c.width=tw; c.height=th; |
| strip.appendChild(c); |
| try{ |
| v.currentTime = Math.min(total-0.03, (i+0.5)*total/N); |
| await Promise.race([once(v,"seeked"), new Promise(r=>setTimeout(r,1500))]); |
| c.getContext("2d").drawImage(v,0,0,tw,th); |
| }catch(e){} |
| } |
| v.removeAttribute("src"); |
| } |
| |
| |
| $("playBtn").addEventListener("click", togglePlay); |
| function togglePlay(){ |
| if(exporting) return; |
| if(V.paused){ if(V.currentTime<inT-0.01||V.currentTime>=outT-0.01) V.currentTime=inT; V.play(); } |
| else V.pause(); |
| } |
| V.addEventListener("play", ()=>$("playBtn").innerHTML="❙❙"); |
| V.addEventListener("pause",()=>$("playBtn").innerHTML="▶"); |
| V.addEventListener("timeupdate", update); |
| V.addEventListener("seeked", update); |
| |
| function rafLoop(){ |
| if(!V.paused && !exporting){ |
| if(V.currentTime>=outT-0.02){ if(looping){ V.currentTime=inT; } else { V.pause(); V.currentTime=outT; } } |
| update(); |
| } |
| requestAnimationFrame(rafLoop); |
| } |
| requestAnimationFrame(rafLoop); |
| |
| $("prevF").addEventListener("click", ()=>step(-1)); |
| $("nextF").addEventListener("click", ()=>step(1)); |
| function step(dir, big){ |
| V.pause(); |
| const d = big ? 1 : 1/(srcFps||30); |
| V.currentTime = clamp(V.currentTime + dir*d, 0, dur); |
| } |
| |
| |
| |
| function setIn(t){ |
| inT = clamp(t, 0, Math.max(0, dur-0.02)); |
| if(outT <= inT + 0.02) outT = dur; |
| refresh(); |
| } |
| function setOut(t){ |
| outT = clamp(t, 0.02, dur); |
| if(inT >= outT - 0.02) inT = 0; |
| refresh(); |
| } |
| $("setIn").addEventListener("click", ()=>setIn(V.currentTime)); |
| $("setOut").addEventListener("click", ()=>setOut(V.currentTime)); |
| $("resetSel").addEventListener("click", ()=>{ inT=0; outT=dur; refresh(); }); |
| $("loopBtn").addEventListener("click", e=>{ looping=!looping; e.target.textContent="Loop: "+(looping?"on":"off"); e.target.classList.toggle("ghost",!looping); }); |
| |
| |
| function parseTime(s){ |
| s = String(s).trim(); if(!s) return null; |
| const parts = s.split(":").map(x=>parseFloat(x)); |
| if(parts.some(x=>isNaN(x))) return null; |
| return parts.reduce((a,x)=>a*60+x, 0); |
| } |
| function makeTimeEditor(el, get, set){ |
| el.addEventListener("click", function(e){ |
| e.stopPropagation(); |
| if(exporting || el.querySelector("input")) return; |
| const inp = document.createElement("input"); |
| inp.value = tc(get()); el.textContent=""; el.appendChild(inp); |
| inp.focus(); inp.select(); |
| let done=false; |
| const commit = ok => { |
| if(done) return; done=true; |
| const v = ok ? parseTime(inp.value) : null; |
| inp.remove(); |
| if(v !== null && isFinite(v)) set(v); |
| refresh(); |
| }; |
| inp.addEventListener("blur", ()=>commit(true)); |
| inp.addEventListener("click", ev=>ev.stopPropagation()); |
| inp.addEventListener("keydown", ev=>{ |
| ev.stopPropagation(); |
| if(ev.key==="Enter"){ ev.preventDefault(); commit(true); } |
| if(ev.key==="Escape"){ ev.preventDefault(); commit(false); } |
| }); |
| }); |
| } |
| makeTimeEditor($("pIn"), ()=>inT, v=>{ setIn(v); V.currentTime=inT; }); |
| makeTimeEditor($("pOut"), ()=>outT, v=>{ setOut(v); V.currentTime=outT; }); |
| makeTimeEditor($("pDur"), ()=>outT-inT, v=>{ |
| const len = clamp(v, 0.02, dur); |
| if(inT + len <= dur){ outT = inT + len; } |
| else { outT = dur; inT = Math.max(0, dur - len); } |
| V.currentTime = inT; |
| }); |
| |
| document.addEventListener("keydown", e=>{ |
| if(exporting) return; |
| const t=e.target.tagName; |
| if(t==="INPUT"||t==="SELECT"||t==="TEXTAREA") return; |
| const k=e.key; |
| if(k===" "){ e.preventDefault(); togglePlay(); } |
| else if(k==="ArrowLeft"){ e.preventDefault(); step(-1, e.shiftKey); } |
| else if(k==="ArrowRight"){ e.preventDefault(); step(1, e.shiftKey); } |
| else if(k==="i"||k==="I"){ setIn(V.currentTime); } |
| else if(k==="o"||k==="O"){ setOut(V.currentTime); } |
| else if(k==="a"||k==="A"){ e.preventDefault(); addClip(); } |
| else if(k==="c"||k==="C"){ e.preventDefault(); toggleCrop(); } |
| else if(k==="Home"){ V.currentTime=inT; } |
| else if(k==="End"){ V.currentTime=outT; } |
| }); |
| |
| |
| const tl=$("tl"); |
| function posToTime(clientX){ |
| const r=tl.getBoundingClientRect(); |
| return clamp((clientX-r.left)/r.width,0,1)*dur; |
| } |
| tl.addEventListener("pointerdown", e=>{ |
| if(exporting||!dur) return; |
| if(e.target===$("hIn")) dragging="in"; |
| else if(e.target===$("hOut")) dragging="out"; |
| else { dragging="seek"; V.pause(); V.currentTime=posToTime(e.clientX); } |
| tl.setPointerCapture(e.pointerId); |
| }); |
| tl.addEventListener("pointermove", e=>{ |
| if(!dragging) return; |
| const t=posToTime(e.clientX); |
| if(dragging==="in"){ inT=clamp(t,0,outT-0.02); V.currentTime=inT; } |
| else if(dragging==="out"){ outT=clamp(t,inT+0.02,dur); V.currentTime=outT; } |
| else V.currentTime=t; |
| refresh(); |
| }); |
| ["pointerup","pointercancel"].forEach(ev=>tl.addEventListener(ev,()=>dragging=null)); |
| |
| function refresh(){ |
| const a = dur? inT/dur*100 : 0, b = dur? outT/dur*100 : 100; |
| $("maskL").style.left="0"; $("maskL").style.width=a+"%"; |
| $("maskR").style.left=b+"%"; $("maskR").style.width=(100-b)+"%"; |
| $("sel").style.left=a+"%"; $("sel").style.width=(b-a)+"%"; |
| $("hIn").style.left=a+"%"; $("hOut").style.left=b+"%"; |
| if(activeSeg>=0){ |
| const sg=segments[activeSeg]; |
| if(!sg || Math.abs(sg.start-inT)>0.001 || Math.abs(sg.end-outT)>0.001) activeSeg=-1; |
| } |
| if(!$("pIn").querySelector("input")) $("pIn").textContent=tc(inT); |
| if(!$("pOut").querySelector("input")) $("pOut").textContent=tc(outT); |
| if(!$("pDur").querySelector("input")) $("pDur").textContent=tc(outT-inT); |
| renderClips(); renderBand(); estimate(); |
| } |
| function update(){ |
| $("curTime").textContent=tc(V.currentTime); |
| $("ph").style.left=(dur? V.currentTime/dur*100 : 0)+"%"; |
| } |
| |
| |
| $("addClip").addEventListener("click", addClip); |
| function addClip(){ |
| if(exporting || !dur) return; |
| if(outT - inT < 0.05){ setStatus("Selection is too short to add."); return; } |
| segments.push({id:++segId, start:inT, end:outT, name:""}); |
| activeSeg = segments.length-1; |
| setStatus(""); |
| refresh(); |
| } |
| $("clearClips").addEventListener("click", ()=>{ |
| if(exporting || !segments.length) return; |
| if(segments.length>1 && !confirm("Remove all "+segments.length+" clips from the list?")) return; |
| segments=[]; activeSeg=-1; refresh(); |
| }); |
| |
| function renderClips(){ |
| const wrap=$("clipsWrap"), list=$("clipList"); |
| wrap.style.display = segments.length ? "block" : "none"; |
| $("clipsTitle").textContent = "Clip list ("+segments.length+")"; |
| if(!segments.length){ list.innerHTML=""; return; } |
| if(list.querySelector("input:focus")) return; |
| |
| list.innerHTML=""; |
| segments.forEach((s,i)=>{ |
| const row=document.createElement("div"); |
| row.className="crow"+(i===activeSeg?" on":""); |
| |
| const num=document.createElement("span"); num.className="cnum"; num.textContent=(i+1); |
| |
| const nameWrap=document.createElement("span"); nameWrap.className="cname"; |
| const name=document.createElement("input"); |
| name.type="text"; name.value=s.name||""; name.placeholder="name (optional)"; name.maxLength=40; |
| name.addEventListener("input", ()=>{ s.name=name.value; }); |
| name.addEventListener("keydown", ev=>{ ev.stopPropagation(); if(ev.key==="Enter") name.blur(); }); |
| name.addEventListener("click", ev=>ev.stopPropagation()); |
| nameWrap.appendChild(name); |
| |
| const times=document.createElement("span"); times.className="ctimes"; |
| const bS=document.createElement("b"); bS.className="edit"; bS.textContent=tc(s.start); |
| const bE=document.createElement("b"); bE.className="edit"; bE.textContent=tc(s.end); |
| times.appendChild(bS); times.appendChild(document.createTextNode(" → ")); times.appendChild(bE); |
| makeTimeEditor(bS, ()=>s.start, v=>{ s.start = clamp(v, 0, s.end-0.02); }); |
| makeTimeEditor(bE, ()=>s.end, v=>{ s.end = clamp(v, s.start+0.02, dur); }); |
| |
| const d=document.createElement("span"); d.className="cdur"; d.textContent=tc(s.end-s.start); |
| |
| const btns=document.createElement("span"); btns.className="cbtns"; |
| const prev=document.createElement("button"); |
| prev.textContent="▶"; prev.title="Load this clip onto the timeline and play it"; |
| prev.addEventListener("click", ev=>{ ev.stopPropagation(); |
| if(exporting) return; |
| activeSeg=i; inT=s.start; outT=s.end; V.currentTime=s.start; refresh(); |
| V.play().catch(()=>{}); }); |
| const use=document.createElement("button"); |
| use.textContent="Set"; use.title="Replace this clip's start and end with the current timeline selection"; |
| use.addEventListener("click", ev=>{ ev.stopPropagation(); |
| if(exporting) return; |
| s.start=inT; s.end=outT; activeSeg=i; refresh(); }); |
| const del=document.createElement("button"); |
| del.textContent="✕"; del.title="Remove this clip"; del.className="danger"; |
| del.addEventListener("click", ev=>{ ev.stopPropagation(); |
| if(exporting) return; |
| segments.splice(i,1); |
| if(activeSeg>=segments.length) activeSeg=segments.length-1; |
| refresh(); }); |
| btns.appendChild(prev); btns.appendChild(use); btns.appendChild(del); |
| |
| row.appendChild(num); row.appendChild(nameWrap); row.appendChild(times); |
| row.appendChild(d); row.appendChild(btns); |
| row.addEventListener("click", ()=>{ |
| if(exporting) return; |
| activeSeg=i; inT=s.start; outT=s.end; V.currentTime=s.start; refresh(); |
| }); |
| list.appendChild(row); |
| }); |
| } |
| |
| function renderBand(){ |
| const band=$("segBand"); band.innerHTML=""; |
| if(!dur) return; |
| segments.forEach((s,i)=>{ |
| const el=document.createElement("div"); |
| el.className="segbar"+(i===activeSeg?" on":""); |
| el.style.left=(s.start/dur*100)+"%"; |
| el.style.width=Math.max(0.4,(s.end-s.start)/dur*100)+"%"; |
| el.textContent=(i+1); |
| band.appendChild(el); |
| }); |
| } |
| |
| |
| function exportList(){ |
| return segments.length ? segments.map(s=>({start:s.start,end:s.end,name:s.name})) |
| : [{start:inT,end:outT,name:""}]; |
| } |
| function totalLen(){ return exportList().reduce((a,s)=>a+Math.max(0,s.end-s.start),0); } |
| |
| |
| |
| |
| let crop=null, cropAR=0, cropARLabel="free", curScale=1; |
| function srcW(){ return crop ? crop.w : natW; } |
| function srcH(){ return crop ? crop.h : natH; } |
| function drawSource(dctx, dw, dh){ |
| dctx.imageSmoothingEnabled=true; dctx.imageSmoothingQuality="high"; |
| if(crop) dctx.drawImage(V, crop.x, crop.y, crop.w, crop.h, 0, 0, dw, dh); |
| else dctx.drawImage(V, 0, 0, dw, dh); |
| } |
| |
| function videoBox(){ |
| const st=$("stage").getBoundingClientRect(), v=V.getBoundingClientRect(); |
| return {left:v.left-st.left, top:v.top-st.top, w:v.width, h:v.height}; |
| } |
| function layoutCrop(){ |
| if(!crop || !natW) return; |
| const L=$("cropLayer"), b=videoBox(); |
| if(!b.w || !b.h) return; |
| L.style.left=b.left+"px"; L.style.top=b.top+"px"; |
| L.style.width=b.w+"px"; L.style.height=b.h+"px"; |
| const sx=b.w/natW, sy=b.h/natH, B=$("cropBox"); |
| B.style.left=(crop.x*sx)+"px"; B.style.top=(crop.y*sy)+"px"; |
| B.style.width=(crop.w*sx)+"px"; B.style.height=(crop.h*sy)+"px"; |
| $("cropDims").textContent = Math.round(crop.w)+" × "+Math.round(crop.h); |
| } |
| function cropChanged(finalise){ |
| if(crop){ |
| crop.x=Math.max(0,Math.round(crop.x)); crop.y=Math.max(0,Math.round(crop.y)); |
| crop.w=Math.min(Math.round(crop.w), natW-crop.x); |
| crop.h=Math.min(Math.round(crop.h), natH-crop.y); |
| } |
| layoutCrop(); |
| $("cropInfo").textContent = crop |
| ? "Keeping "+crop.w+" × "+crop.h+" ("+cropARLabel+") out of "+natW+" × "+natH+" · drag the box or its handles" |
| : ""; |
| if(finalise){ |
| if(curScale){ W.value=even(srcW()*curScale); H.value=even(srcH()*curScale); markScale(curScale); } |
| else if(lock.checked){ H.value=even((+W.value||srcW())*srcH()/srcW()); } |
| } |
| estimate(); |
| } |
| function setCrop(x,y,w,h){ |
| w=Math.max(16,Math.min(w,natW)); h=Math.max(16,Math.min(h,natH)); |
| crop={x:clamp(x,0,natW-w), y:clamp(y,0,natH-h), w, h}; |
| } |
| function snapToAR(ar){ |
| if(!ar || !crop) return; |
| const cx=crop.x+crop.w/2, cy=crop.y+crop.h/2; |
| let w=Math.min(natW, Math.max(crop.w, crop.h*ar)), h=w/ar; |
| if(h>natH){ h=natH; w=h*ar; } |
| setCrop(cx-w/2, cy-h/2, w, h); |
| } |
| function biggestFit(ar){ |
| let w=natW, h=natW/(ar||natW/natH); |
| if(h>natH){ h=natH; w=h*(ar||natW/natH); } |
| setCrop((natW-w)/2, (natH-h)/2, w, h); |
| } |
| |
| function showCrop(on){ |
| $("cropLayer").style.display = on ? "block" : "none"; |
| $("cropSection").style.display = on ? "block" : "none"; |
| $("cropBtn").classList.toggle("on", on); |
| } |
| $("cropBtn").addEventListener("click", toggleCrop); |
| function toggleCrop(){ |
| if(exporting || !dur) return; |
| if(crop){ removeCrop(); return; } |
| if(cropAR) biggestFit(cropAR); |
| else setCrop(natW*0.1, natH*0.1, natW*0.8, natH*0.8); |
| showCrop(true); markAR(); cropChanged(true); |
| } |
| function removeCrop(){ |
| crop=null; cropAR=0; cropARLabel="free"; |
| showCrop(false); |
| if(curScale){ W.value=even(natW*curScale); H.value=even(natH*curScale); markScale(curScale); } |
| $("cropInfo").textContent=""; |
| estimate(); |
| } |
| $("cropMax").addEventListener("click", ()=>{ if(!crop) return; biggestFit(cropAR||natW/natH); cropChanged(true); }); |
| |
| function applyAR(ar, label){ |
| cropAR = ar; cropARLabel = label; |
| markAR(); |
| if(cropAR) snapToAR(cropAR); |
| cropChanged(true); |
| } |
| document.querySelectorAll(".arRow").forEach(row=>{ |
| row.addEventListener("click", e=>{ |
| const b=e.target.closest("button"); if(!b || !crop) return; |
| const v=b.dataset.ar; |
| applyAR(v==="src" ? natW/natH : parseFloat(v), v==="src" ? "original" : b.dataset.lbl); |
| }); |
| }); |
| function useCustomAR(){ |
| if(!crop) return; |
| const a=+$("arW").value, b=+$("arH").value; |
| if(!(a>0) || !(b>0)){ $("arW").focus(); return; } |
| applyAR(a/b, a+":"+b); |
| } |
| $("arApply").addEventListener("click", useCustomAR); |
| ["arW","arH"].forEach(id=>$(id).addEventListener("keydown", e=>{ |
| e.stopPropagation(); |
| if(e.key==="Enter"){ e.preventDefault(); useCustomAR(); } |
| })); |
| function markAR(){ |
| let matched=false; |
| document.querySelectorAll(".arRow button").forEach(b=>{ |
| const v=b.dataset.ar, val = v==="src" ? (natW/natH) : parseFloat(v); |
| const on = (!cropAR && v==="0") || (cropAR>0 && Math.abs(val-cropAR) < 0.004); |
| b.classList.toggle("on", on); |
| if(on) matched=true; |
| }); |
| $("arCustom").classList.toggle("on", !matched && cropAR>0); |
| } |
| |
| let cropDrag=null; |
| $("cropLayer").addEventListener("pointerdown", e=>{ |
| const h=e.target.dataset.h; |
| if(!h || exporting || !crop) return; |
| e.preventDefault(); |
| const b=videoBox(); |
| cropDrag={h, s:{...crop}, px:e.clientX, py:e.clientY, sx:b.w/natW, sy:b.h/natH}; |
| $("cropLayer").setPointerCapture(e.pointerId); |
| }); |
| $("cropLayer").addEventListener("pointermove", e=>{ |
| if(!cropDrag) return; |
| const dx=(e.clientX-cropDrag.px)/cropDrag.sx, dy=(e.clientY-cropDrag.py)/cropDrag.sy; |
| const s=cropDrag.s, H=cropDrag.h, ar=cropAR; |
| if(H==="move"){ |
| setCrop(s.x+dx, s.y+dy, s.w, s.h); |
| }else if(ar){ |
| if(H==="n"||H==="s"){ |
| let hh = H==="n" ? s.h-dy : s.h+dy; |
| hh=Math.max(16,Math.min(hh,natH)); let ww=hh*ar; |
| if(ww>natW){ ww=natW; hh=ww/ar; } |
| const cx=s.x+s.w/2, y = H==="n" ? (s.y+s.h)-hh : s.y; |
| setCrop(cx-ww/2, y, ww, hh); |
| }else if(H==="e"||H==="w"){ |
| let ww = H==="w" ? s.w-dx : s.w+dx; |
| ww=Math.max(16,Math.min(ww,natW)); let hh=ww/ar; |
| if(hh>natH){ hh=natH; ww=hh*ar; } |
| const cy=s.y+s.h/2, x = H==="w" ? (s.x+s.w)-ww : s.x; |
| setCrop(x, cy-hh/2, ww, hh); |
| }else{ |
| const west=H.indexOf("w")>=0, north=H.indexOf("n")>=0; |
| const ax = west ? s.x+s.w : s.x, ay = north ? s.y+s.h : s.y; |
| const availW = west ? ax : natW-ax, availH = north ? ay : natH-ay; |
| let ww = Math.max(west ? s.w-dx : s.w+dx, (north ? s.h-dy : s.h+dy)*ar); |
| ww = Math.max(16, Math.min(ww, availW, availH*ar)); |
| const hh = ww/ar; |
| setCrop(west ? ax-ww : ax, north ? ay-hh : ay, ww, hh); |
| } |
| }else{ |
| let l=s.x, tp=s.y, r=s.x+s.w, bt=s.y+s.h; |
| if(H.indexOf("w")>=0) l=clamp(s.x+dx, 0, r-16); |
| if(H.indexOf("e")>=0) r=clamp(s.x+s.w+dx, l+16, natW); |
| if(H.indexOf("n")>=0) tp=clamp(s.y+dy, 0, bt-16); |
| if(H.indexOf("s")>=0) bt=clamp(s.y+s.h+dy, tp+16, natH); |
| setCrop(l, tp, r-l, bt-tp); |
| } |
| cropChanged(false); |
| }); |
| ["pointerup","pointercancel"].forEach(ev=>$("cropLayer").addEventListener(ev, ()=>{ |
| if(cropDrag){ cropDrag=null; cropChanged(true); } |
| })); |
| window.addEventListener("resize", layoutCrop); |
| if(window.ResizeObserver) new ResizeObserver(layoutCrop).observe($("stage")); |
| V.addEventListener("loadeddata", layoutCrop); |
| |
| |
| const W=$("w"), H=$("h"), lock=$("lockAr"); |
| $("scaleSeg").addEventListener("click", e=>{ |
| const b=e.target.closest("button"); if(!b) return; |
| const s=parseFloat(b.dataset.s); |
| W.value=even(srcW()*s); H.value=even(srcH()*s); markScale(s); estimate(); |
| }); |
| function markScale(s){ |
| curScale = s; |
| [...$("scaleSeg").children].forEach(b=>b.classList.toggle("on", parseFloat(b.dataset.s)===s)); |
| } |
| W.addEventListener("input", ()=>{ if(lock.checked && srcW()) H.value=even(W.value*srcH()/srcW()); markScale(null); estimate(); }); |
| H.addEventListener("input", ()=>{ if(lock.checked && srcH()) W.value=even(H.value*srcW()/srcH()); markScale(null); estimate(); }); |
| |
| |
| function buildFpsSeg(){ |
| const seg=$("fpsSeg"); seg.innerHTML=""; |
| const opts=[Math.round(srcFps),60,30,24,15,12].filter((v,i,a)=>v<=Math.max(60,Math.round(srcFps))&&a.indexOf(v)===i); |
| opts.forEach(f=>{ |
| const b=document.createElement("button"); |
| b.textContent = (f===Math.round(srcFps)? "Same ("+f+")" : f); |
| b.dataset.f=f; |
| b.addEventListener("click",()=>{ $("fps").value=f; markFps(); estimate(); }); |
| seg.appendChild(b); |
| }); |
| markFps(); |
| } |
| function markFps(){ |
| const f=+$("fps").value; |
| [...$("fpsSeg").children].forEach(b=>b.classList.toggle("on", +b.dataset.f===f)); |
| } |
| $("fps").addEventListener("input", ()=>{ markFps(); estimate(); }); |
| |
| |
| $("q").addEventListener("input", estimate); |
| $("keepAudio").addEventListener("change", estimate); |
| |
| |
| |
| function qualityBpp(){ |
| const q=+$("q").value/100; |
| return 0.035 * Math.pow(0.55/0.035, q); |
| } |
| function targets(){ |
| const w=even(clamp(+W.value||srcW(),16,7680)), h=even(clamp(+H.value||srcH(),16,4320)); |
| const f=clamp(+$("fps").value||Math.round(srcFps),1,120); |
| const bitrate=Math.round(clamp(w*h*f*qualityBpp(), 250000, 120000000)); |
| return {w,h,f,bitrate}; |
| } |
| function estimate(){ |
| const t=targets(), n=exportList().length, len=totalLen(); |
| $("eSize").textContent = t.w+"×"+t.h; |
| $("eRate").textContent = (t.bitrate/1e6).toFixed(2)+" Mbps"; |
| $("eBytesLbl").textContent = n>1 ? "Est. size, all "+n : "Est. file size"; |
| $("eCodec").textContent = codecLabel(); |
| $("eBytes").textContent = bytes(t.bitrate*len/8 + (wantAudio()?192000:0)*len/8); |
| $("eTime").textContent = len<1 ? "—" : (len<60? Math.ceil(len)+" s" : Math.ceil(len/60)+" min"); |
| const q=+$("q").value; |
| $("qHint").textContent = (q<25?"Small file — fine for quick previews" |
| : q<50?"Balanced — good for email and chat" |
| : q<72?"High — good for web and presentations" |
| : q<90?"Very high — hard to tell from the original" |
| : "Maximum — biggest file, best detail"); |
| $("sizeHint").textContent = (crop ? "Cropped to "+crop.w+"×"+crop.h+" (from "+natW+"×"+natH+")." |
| : "Source "+natW+"×"+natH+".")+" Width and height are rounded to even numbers."; |
| $("exportBtn").textContent = n>1 ? "Export "+n+" clips" : (segments.length===1 ? "Export 1 clip" : "Export clip"); |
| $("gifBtn").textContent = n>1 ? "Export "+n+" GIFs" : "Export as GIF"; |
| } |
| |
| |
| |
| |
| |
| const MIMES = [ |
| "video/mp4;codecs=avc1.640034,mp4a.40.2", |
| "video/mp4;codecs=avc1.64002A,mp4a.40.2", |
| "video/mp4;codecs=avc1.4D402A,mp4a.40.2", |
| "video/mp4;codecs=avc1.640034", |
| "video/mp4", |
| "video/webm;codecs=vp9,opus", |
| "video/webm;codecs=vp9", |
| "video/webm;codecs=vp8,opus", |
| "video/webm" |
| ]; |
| function pickMime(){ |
| for(const m of MIMES) if(window.MediaRecorder && MediaRecorder.isTypeSupported(m)) return m; |
| return ""; |
| } |
| function codecLabel(){ |
| const m = pickMime(); |
| if(!m) return "none"; |
| if(/avc1\.64/.test(m)) return "H.264 High"; |
| if(/avc1\.4D/.test(m)) return "H.264 Main"; |
| if(/avc1/.test(m)) return "H.264"; |
| if(/mp4/.test(m)) return "MP4"; |
| if(/vp9/.test(m)) return "VP9"; |
| if(/vp8/.test(m)) return "VP8"; |
| return m; |
| } |
| function wantAudio(){ const c=$("keepAudio"); return !c || c.checked; } |
| function setupAudio(){ |
| if(audioCtx) return; |
| try{ |
| audioCtx = new (window.AudioContext||window.webkitAudioContext)(); |
| mediaSrc = audioCtx.createMediaElementSource(V); |
| monitorGain = audioCtx.createGain(); monitorGain.gain.value = 1; |
| mediaSrc.connect(monitorGain); monitorGain.connect(audioCtx.destination); |
| streamDest = audioCtx.createMediaStreamDestination(); |
| mediaSrc.connect(streamDest); |
| }catch(e){ audioCtx=null; } |
| } |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| function makeClock(fn){ |
| const stops=[]; |
| try{ |
| if(audioCtx && audioCtx.createScriptProcessor){ |
| const node = audioCtx.createScriptProcessor(1024, 1, 1); |
| const mute = audioCtx.createGain(); mute.gain.value = 0; |
| node.onaudioprocess = ()=>fn(); |
| node.connect(mute); mute.connect(audioCtx.destination); |
| stops.push(()=>{ node.onaudioprocess=null; try{ node.disconnect(); mute.disconnect(); }catch(e){} }); |
| } |
| }catch(e){} |
| if(typeof requestAnimationFrame === "function"){ |
| let alive=true, raf=0; |
| const loop=()=>{ if(!alive) return; fn(); raf=requestAnimationFrame(loop); }; |
| raf=requestAnimationFrame(loop); |
| stops.push(()=>{ alive=false; try{ cancelAnimationFrame(raf); }catch(e){} }); |
| } |
| const id=setInterval(fn, 60); |
| stops.push(()=>clearInterval(id)); |
| return ()=>stops.forEach(f=>{ try{ f(); }catch(e){} }); |
| } |
| |
| let wakeLock=null; |
| async function keepAwake(on){ |
| try{ |
| if(on && navigator.wakeLock && !wakeLock){ wakeLock = await navigator.wakeLock.request("screen"); } |
| else if(!on && wakeLock){ await wakeLock.release(); wakeLock=null; } |
| }catch(e){ wakeLock=null; } |
| } |
| |
| async function recordRange(a, z, t, mime, ctx, cv, onProg){ |
| const len = Math.max(0.02, z-a); |
| |
| |
| |
| |
| const cStream = cv.captureStream(t.f); |
| |
| const tracks = [...cStream.getVideoTracks()]; |
| if(streamDest && wantAudio()) tracks.push(...streamDest.stream.getAudioTracks()); |
| const stream = new MediaStream(tracks); |
| |
| let rec; |
| try{ rec = new MediaRecorder(stream, {mimeType:mime, videoBitsPerSecond:t.bitrate, audioBitsPerSecond:192000}); } |
| catch(e){ rec = new MediaRecorder(stream, {mimeType:mime}); } |
| |
| const chunks=[]; |
| rec.ondataavailable = e => { if(e.data && e.data.size) chunks.push(e.data); }; |
| const stopped = new Promise(r => rec.onstop = r); |
| |
| const paintFrame = ()=> drawSource(ctx, t.w, t.h); |
| |
| V.currentTime = a; |
| await Promise.race([once(V,"seeked"), new Promise(r=>setTimeout(r,5000))]); |
| drawSource(ctx, t.w, t.h); |
| |
| let stopClock=null, stopping=false, stalled=false, aborted=false; |
| let wall0=0, media0=a, speed=1, pausedTotal=0, pausedAt=0, hiddenPaused=false; |
| let lastT=V.currentTime, stallMs=0, prevNow=performance.now(); |
| const frameMs = 1000/Math.max(1,t.f); |
| let nextFrameAt = 0; |
| const maxMs = len*1000*3 + 8000; |
| |
| const stop = ()=>{ |
| if(stopClock){ stopClock(); stopClock=null; } |
| const el=(performance.now()-wall0-pausedTotal)/1000; |
| if(el>0.2) speed=(V.currentTime-media0)/el; |
| V.pause(); |
| try{ rec.stop(); }catch(e){} |
| }; |
| |
| |
| |
| const onVis = ()=>{ |
| if(stopping) return; |
| if(document.hidden && !hiddenPaused){ |
| hiddenPaused=true; pausedAt=performance.now(); |
| try{ V.pause(); }catch(e){} |
| try{ if(rec.state==="recording") rec.pause(); }catch(e){} |
| setStatus("Paused — come back to this tab to carry on exporting"); |
| }else if(!document.hidden && hiddenPaused){ |
| hiddenPaused=false; pausedTotal += performance.now()-pausedAt; |
| prevNow=performance.now(); nextFrameAt=0; |
| try{ if(rec.state==="paused") rec.resume(); }catch(e){} |
| V.play().catch(()=>{}); |
| keepAwake(true); |
| } |
| }; |
| document.addEventListener("visibilitychange", onVis); |
| |
| const tick = ()=>{ |
| if(stopping || hiddenPaused) return; |
| const now=performance.now(); |
| if(now >= nextFrameAt){ |
| paintFrame(); |
| nextFrameAt = (nextFrameAt && now - nextFrameAt < frameMs) ? nextFrameAt + frameMs : now + frameMs; |
| } |
| if(Math.abs(V.currentTime-lastT)>0.001){ lastT=V.currentTime; stallMs=0; } else { stallMs += now-prevNow; } |
| prevNow=now; |
| if(onProg) onProg(clamp((V.currentTime-a)/len,0,1), Math.max(0,len-(V.currentTime-a))); |
| if(cancelExport || V.currentTime >= z-0.005 || V.ended || |
| stallMs > 10000 || (now-wall0-pausedTotal) > maxMs){ |
| stopping=true; |
| if(cancelExport) aborted=true; |
| if(stallMs>10000 || (now-wall0-pausedTotal)>maxMs) stalled=true; |
| stop(); |
| } |
| }; |
| const onEnded = ()=>{ if(!stopping){ stopping=true; stop(); } }; |
| V.addEventListener("ended", onEnded); |
| |
| |
| |
| V.playbackRate = 1; |
| try{ await V.play(); } |
| catch(e){ |
| document.removeEventListener("visibilitychange", onVis); |
| V.removeEventListener("ended",onEnded); |
| try{ cStream.getTracks().forEach(x=>x.stop()); }catch(e2){} |
| throw new Error("Couldn't start playback: "+e.message); |
| } |
| wall0 = performance.now(); media0 = V.currentTime; prevNow = wall0; nextFrameAt = 0; |
| rec.start(200); |
| stopClock = makeClock(tick); |
| |
| await stopped; |
| if(stopClock){ stopClock(); stopClock=null; } |
| document.removeEventListener("visibilitychange", onVis); |
| V.removeEventListener("ended", onEnded); |
| try{ cStream.getTracks().forEach(x=>x.stop()); }catch(e){} |
| |
| const type = mime.split(";")[0]; |
| return { blob:new Blob(chunks,{type}), ext:(type.indexOf("mp4")>=0?"mp4":"webm"), stalled, speed, aborted }; |
| } |
| |
| |
| |
| |
| |
| const _hist=new Int32Array(32768), _rs=new Int32Array(32768), _gs=new Int32Array(32768), _bs=new Int32Array(32768); |
| const _bins=new Int32Array(32768), _cache=new Int16Array(32768); |
| |
| function gifBytes(){ |
| let b=new Uint8Array(1<<18), n=0; |
| const grow=k=>{ if(n+k<=b.length) return; let L=b.length; while(L<n+k) L*=2; |
| const t=new Uint8Array(L); t.set(b.subarray(0,n)); b=t; }; |
| return { |
| u8(v){ grow(1); b[n++]=v&255; }, |
| u16(v){ grow(2); b[n++]=v&255; b[n++]=(v>>8)&255; }, |
| str(s){ grow(s.length); for(let i=0;i<s.length;i++) b[n++]=s.charCodeAt(i); }, |
| raw(a){ grow(a.length); b.set(a,n); n+=a.length; }, |
| size(){ return n; }, |
| out(){ return b.slice(0,n); } |
| }; |
| } |
| |
| function buildPalette(data, maxColors){ |
| _hist.fill(0); _rs.fill(0); _gs.fill(0); _bs.fill(0); |
| for(let i=0;i<data.length;i+=4){ |
| const r=data[i], g=data[i+1], b=data[i+2]; |
| const k=((r>>3)<<10)|((g>>3)<<5)|(b>>3); |
| _hist[k]++; _rs[k]+=r; _gs[k]+=g; _bs[k]+=b; |
| } |
| let m=0; for(let k=0;k<32768;k++) if(_hist[k]) _bins[m++]=k; |
| const stat=(s,e)=>{ |
| let rmin=31,rmax=0,gmin=31,gmax=0,bmin=31,bmax=0; |
| for(let i=s;i<e;i++){ const k=_bins[i], r=(k>>10)&31, g=(k>>5)&31, b=k&31; |
| if(r<rmin)rmin=r; if(r>rmax)rmax=r; |
| if(g<gmin)gmin=g; if(g>gmax)gmax=g; |
| if(b<bmin)bmin=b; if(b>bmax)bmax=b; } |
| const dr=rmax-rmin, dg=gmax-gmin, db=bmax-bmin; |
| let chan=0, ext=dr; |
| if(dg>ext){ chan=1; ext=dg; } |
| if(db>ext){ chan=2; ext=db; } |
| return {s,e,chan,ext}; |
| }; |
| let boxes=[stat(0,m)]; |
| while(boxes.length<maxColors){ |
| let bi=-1, best=0; |
| for(let i=0;i<boxes.length;i++){ const B=boxes[i]; |
| if(B.e-B.s<2) continue; |
| if(B.ext>best){ best=B.ext; bi=i; } } |
| if(bi<0) break; |
| const B=boxes[bi], shift=B.chan===0?10:B.chan===1?5:0; |
| const sub=Array.from(_bins.subarray(B.s,B.e)); |
| sub.sort((x,y)=>(((x>>shift)&31)-((y>>shift)&31))); |
| _bins.set(sub,B.s); |
| let total=0; for(let i=B.s;i<B.e;i++) total+=_hist[_bins[i]]; |
| let acc=0, mid=B.s+1; |
| for(let i=B.s;i<B.e;i++){ acc+=_hist[_bins[i]]; if(acc*2>=total){ mid=i+1; break; } } |
| if(mid<=B.s) mid=B.s+1; |
| if(mid>=B.e) mid=B.e-1; |
| boxes.splice(bi,1,stat(B.s,mid),stat(mid,B.e)); |
| } |
| const pal=new Uint8Array(768); |
| for(let i=0;i<boxes.length;i++){ |
| const B=boxes[i]; let c=0,R=0,G=0,Bl=0; |
| for(let x=B.s;x<B.e;x++){ const k=_bins[x]; c+=_hist[k]; R+=_rs[k]; G+=_gs[k]; Bl+=_bs[k]; } |
| if(c){ pal[i*3]=Math.round(R/c); pal[i*3+1]=Math.round(G/c); pal[i*3+2]=Math.round(Bl/c); } |
| } |
| return {pal, count:Math.max(1,boxes.length)}; |
| } |
| |
| function mapToPalette(data, w, h, pal, palCount, dither){ |
| const idx=new Uint8Array(w*h); |
| _cache.fill(-1); |
| const nearest=(r,g,b)=>{ |
| const key=((r>>3)<<10)|((g>>3)<<5)|(b>>3); |
| const hit=_cache[key]; if(hit>=0) return hit; |
| let bd=Infinity, bi=0; |
| for(let i=0;i<palCount;i++){ |
| const dr=r-pal[i*3], dg=g-pal[i*3+1], db=b-pal[i*3+2]; |
| const d=dr*dr*3+dg*dg*6+db*db; |
| if(d<bd){ bd=d; bi=i; } |
| } |
| _cache[key]=bi; return bi; |
| }; |
| if(!dither){ |
| for(let p=0,q=0;q<idx.length;q++,p+=4) idx[q]=nearest(data[p],data[p+1],data[p+2]); |
| return idx; |
| } |
| const buf=new Float32Array(w*h*3); |
| for(let p=0,q=0;q<w*h;q++,p+=4){ buf[q*3]=data[p]; buf[q*3+1]=data[p+1]; buf[q*3+2]=data[p+2]; } |
| const cl=v=>v<0?0:(v>255?255:v); |
| for(let y=0;y<h;y++){ |
| for(let x=0;x<w;x++){ |
| const q=y*w+x, o=q*3; |
| const r=cl(buf[o]), g=cl(buf[o+1]), b=cl(buf[o+2]); |
| const i=nearest(r|0,g|0,b|0); idx[q]=i; |
| const er=(r-pal[i*3])*0.75, eg=(g-pal[i*3+1])*0.75, eb=(b-pal[i*3+2])*0.75; |
| if(x+1<w){ const oo=(q+1)*3; buf[oo]+=er*0.4375; buf[oo+1]+=eg*0.4375; buf[oo+2]+=eb*0.4375; } |
| if(y+1<h){ |
| if(x>0){ const oo=(q+w-1)*3; buf[oo]+=er*0.1875; buf[oo+1]+=eg*0.1875; buf[oo+2]+=eb*0.1875; } |
| { const oo=(q+w)*3; buf[oo]+=er*0.3125; buf[oo+1]+=eg*0.3125; buf[oo+2]+=eb*0.3125; } |
| if(x+1<w){ const oo=(q+w+1)*3; buf[oo]+=er*0.0625; buf[oo+1]+=eg*0.0625; buf[oo+2]+=eb*0.0625; } |
| } |
| } |
| } |
| return idx; |
| } |
| |
| function lzwWrite(minCodeSize, indices, g){ |
| const CLEAR=1<<minCodeSize, EOI=CLEAR+1; |
| let codeSize=minCodeSize+1, next=EOI+1; |
| let dict=new Map(), cur=0, curBits=0; |
| const block=[]; |
| const flush=()=>{ if(block.length){ g.u8(block.length); for(let i=0;i<block.length;i++) g.u8(block[i]); block.length=0; } }; |
| const emit=code=>{ |
| cur |= code<<curBits; curBits += codeSize; |
| while(curBits>=8){ block.push(cur&255); cur>>>=8; curBits-=8; if(block.length===255) flush(); } |
| }; |
| g.u8(minCodeSize); |
| emit(CLEAR); |
| let prefix=indices[0]; |
| for(let i=1;i<indices.length;i++){ |
| const k=indices[i], key=prefix*256+k, found=dict.get(key); |
| if(found!==undefined){ prefix=found; continue; } |
| emit(prefix); |
| if(next===4096){ |
| emit(CLEAR); dict=new Map(); next=EOI+1; codeSize=minCodeSize+1; |
| }else{ |
| |
| |
| if(next >= (1<<codeSize) && codeSize<12) codeSize++; |
| dict.set(key,next); next++; |
| } |
| prefix=k; |
| } |
| emit(prefix); emit(EOI); |
| if(curBits>0){ block.push(cur&255); if(block.length===255) flush(); } |
| flush(); |
| g.u8(0); |
| } |
| |
| function whileVisible(){ |
| if(!document.hidden) return Promise.resolve(); |
| setStatus("Paused — come back to this tab to carry on"); |
| return new Promise(res=>{ |
| const h=()=>{ if(!document.hidden){ document.removeEventListener("visibilitychange",h); res(); } }; |
| document.addEventListener("visibilitychange",h); |
| }); |
| } |
| |
| |
| |
| async function renderGif(a, z, t, ctx, cv, onProg){ |
| const len=Math.max(0.02, z-a); |
| const delay=Math.max(2, Math.round(100/Math.min(20, t.f))); |
| const w=t.w, h=t.h; |
| const n=Math.max(1, Math.min(900, Math.round(len*100/delay))); |
| const g=gifBytes(); |
| g.str("GIF89a"); g.u16(w); g.u16(h); g.u8(0x70); g.u8(0); g.u8(0); |
| g.u8(0x21); g.u8(0xFF); g.u8(11); g.str("NETSCAPE2.0"); g.u8(3); g.u8(1); g.u16(0); g.u8(0); |
| |
| let aborted=false, t0=performance.now(); |
| for(let i=0;i<n;i++){ |
| if(cancelExport){ aborted=true; break; } |
| await whileVisible(); |
| V.currentTime = Math.min(z-0.001, a + i*delay/100); |
| await Promise.race([once(V,"seeked"), new Promise(r=>setTimeout(r,3000))]); |
| drawSource(ctx, w, h); |
| const img=ctx.getImageData(0,0,w,h); |
| const {pal,count}=buildPalette(img.data, 256); |
| const idx=mapToPalette(img.data, w, h, pal, count, true); |
| g.u8(0x21); g.u8(0xF9); g.u8(4); g.u8(0x04); g.u16(delay); g.u8(0); g.u8(0); |
| g.u8(0x2C); g.u16(0); g.u16(0); g.u16(w); g.u16(h); g.u8(0x87); |
| g.raw(pal); |
| lzwWrite(8, idx, g); |
| if(onProg){ |
| const per=(performance.now()-t0)/(i+1)/1000; |
| onProg((i+1)/n, Math.max(0,(n-i-1)*per)); |
| } |
| if((i&1)===0) await new Promise(r=>setTimeout(r,0)); |
| } |
| g.u8(0x3B); |
| return { blob:new Blob([g.out()],{type:"image/gif"}), ext:"gif", stalled:false, speed:1, aborted, |
| frames:n, fps:Math.round(1000/delay)/10 }; |
| } |
| |
| |
| $("exportBtn").addEventListener("click", ()=>doExport("video")); |
| $("gifBtn").addEventListener("click", ()=>doExport("gif")); |
| $("stopBtn").addEventListener("click", ()=>{ cancelExport=true; setStatus("Stopping…"); }); |
| |
| async function doExport(mode){ |
| if(exporting || !dur) return; |
| const isGif = mode === "gif"; |
| const t = targets(); |
| const list = exportList().filter(s => s.end - s.start >= 0.05); |
| if(!list.length){ setStatus("Selection is too short."); return; } |
| const multi = list.length > 1; |
| const mime = isGif ? "image/gif" : pickMime(); |
| if(!mime){ setStatus("This browser can't record video. Try Chrome or Edge."); return; } |
| |
| if(isGif){ |
| const gfps = Math.min(20, t.f); |
| const frames = Math.round(list.reduce((x,sg)=>x+(sg.end-sg.start),0) * gfps); |
| if(t.w*t.h*frames > 90e6 && |
| !confirm("That's "+frames+" frames at "+t.w+"×"+t.h+", which will make a very large GIF and take a while.\n\nA smaller width or fewer frames per second would help.\n\nCarry on anyway?")) return; |
| } |
| |
| |
| let dirHandle = null; |
| if(multi && window.showDirectoryPicker){ |
| try{ |
| dirHandle = await window.showDirectoryPicker({id:"nugget-clips", mode:"readwrite", startIn:"videos"}); |
| }catch(e){ |
| if(e && e.name === "AbortError"){ setStatus("Export cancelled — no folder chosen."); return; } |
| dirHandle = null; |
| } |
| } |
| |
| exporting=true; cancelExport=false; |
| clearResult(); clearSaved(); |
| $("exportBtn").disabled=true; $("gifBtn").disabled=true; |
| $("exportBtn").textContent = isGif ? "Building GIF…" : "Exporting…"; |
| $("stopBtn").style.display="block"; |
| $("expNote").style.display="block"; |
| $("bar").style.display="block"; $("barI").style.width="0%"; |
| V.pause(); |
| |
| const cv=$("exportCanvas"); cv.width=t.w; cv.height=t.h; |
| const ctx=cv.getContext("2d",{alpha:false}); |
| ctx.imageSmoothingEnabled=true; ctx.imageSmoothingQuality="high"; |
| ctx.fillStyle="#000"; ctx.fillRect(0,0,t.w,t.h); |
| V.style.display="none"; cv.style.display="block"; $("cropLayer").style.display="none"; |
| |
| setupAudio(); |
| if(audioCtx && audioCtx.state==="suspended"){ try{ await audioCtx.resume(); }catch(e){} } |
| if(monitorGain) monitorGain.gain.value = 0; |
| keepAwake(true); |
| |
| const total = list.reduce((a,s)=>a+(s.end-s.start),0); |
| let doneLen = 0, saved = [], slow = false, cut = false, failed = 0; |
| |
| try{ |
| for(let i=0;i<list.length;i++){ |
| if(cancelExport) break; |
| const s = list[i]; |
| const len = s.end - s.start; |
| const label = multi ? "Clip "+(i+1)+" of "+list.length+" · " : ""; |
| |
| const onProg = (p, left)=>{ |
| const overall = (doneLen + p*len)/total; |
| $("barI").style.width=(overall*100).toFixed(1)+"%"; |
| setStatus(label+(isGif?"building GIF ":"recording ")+Math.round(p*100)+"% · about "+Math.ceil(left)+"s left"); |
| }; |
| const r = isGif ? await renderGif(s.start, s.end, t, ctx, cv, onProg) |
| : await recordRange(s.start, s.end, t, mime, ctx, cv, onProg); |
| doneLen += len; |
| lastExt = r.ext; |
| if(r.stalled) cut = true; |
| if(!r.stalled && r.speed < 0.9) slow = true; |
| |
| if(r.aborted) break; |
| if(!r.blob.size){ failed++; continue; } |
| |
| const fname = clipFileName(i, s, t, multi); |
| if(dirHandle){ |
| setStatus(label+"saving…"); |
| try{ |
| const fh = await dirHandle.getFileHandle(fname, {create:true}); |
| const ws = await fh.createWritable(); |
| await ws.write(r.blob); await ws.close(); |
| saved.push(fname+" ("+bytes(r.blob.size)+")"); |
| }catch(e){ failed++; saved.push(fname+" — could not be written: "+e.message); } |
| }else if(multi){ |
| pushDownload(r.blob, fname); |
| saved.push(fname+" ("+bytes(r.blob.size)+")"); |
| await new Promise(r2=>setTimeout(r2,400)); |
| }else{ |
| lastBlob = r.blob; |
| lastMeta = {w:t.w, h:t.h, f:t.f, at:s.start, name:s.name}; |
| const url = URL.createObjectURL(lastBlob); |
| if(isGif){ $("outImg").src=url; $("outImg").style.display="block"; $("outVid").style.display="none"; } |
| else { $("outVid").src=url; $("outVid").style.display="block"; $("outImg").style.display="none"; } |
| $("result").style.display="block"; |
| const n = download(); |
| saved.push((n||fname)+" ("+bytes(r.blob.size)+")"); |
| } |
| } |
| }catch(err){ |
| setStatus(err.message); |
| }finally{ |
| exporting=false; |
| if(monitorGain) monitorGain.gain.value=1; |
| cv.style.display="none"; V.style.display="block"; |
| if(crop){ showCrop(true); layoutCrop(); } |
| $("exportBtn").disabled=false; $("gifBtn").disabled=false; $("stopBtn").style.display="none"; |
| $("expNote").style.display="none"; |
| $("bar").style.display="none"; |
| keepAwake(false); |
| V.currentTime=inT; |
| estimate(); |
| } |
| |
| |
| const notes=[]; |
| if(lastExt==="webm" && !isGif) notes.push("Saved as .webm — this browser can't record MP4. Plays in Chrome, Edge, Firefox and VLC."); |
| if(cut) notes.push("Playback stalled on at least one clip, so it may be cut short."); |
| if(slow && !isGif) notes.push("Your computer couldn't play the video at full speed, so clips may run slightly slow. Try a smaller output size or lower quality."); |
| if(failed) notes.push(failed+" clip(s) could not be saved."); |
| |
| if(multi){ |
| $("saved").style.display = saved.length ? "block" : "none"; |
| $("savedWhere").textContent = cancelExport |
| ? "Stopped — "+saved.length+" of "+list.length+" saved" |
| : "Saved "+saved.length+" clip"+(saved.length===1?"":"s")+(dirHandle? " to “"+dirHandle.name+"”" : " to your Downloads folder"); |
| $("savedList").innerHTML=""; |
| saved.forEach(n=>{ const li=document.createElement("li"); li.textContent=n; $("savedList").appendChild(li); }); |
| if(!dirHandle && saved.length>1) notes.push("Chrome asks permission the first time a page saves several files — choose Allow if you see that prompt."); |
| $("savedNote").textContent = notes.join(" "); |
| setStatus(cancelExport ? "Stopped." : "Done — "+saved.length+" clip"+(saved.length===1?"":"s")+"."); |
| }else{ |
| $("outNote").textContent = notes.join(" "); |
| setStatus(cancelExport ? "Stopped." : (saved[0] ? "Saved "+saved[0] : "Nothing was saved.")); |
| } |
| } |
| |
| function clipFileName(i, s, t, multi){ |
| const base = safeName(srcName,60) || "clip"; |
| if(lastExt==="gif"){ |
| const lbl0 = safeName(s.name,40); |
| return base+"_"+(multi? String(i+1).padStart(2,"0")+"_" : "")+(lbl0 || stamp(s.start))+"_"+t.w+"px.gif"; |
| } |
| if(!multi) return base+"_"+stamp(s.start)+"_"+t.w+"x"+t.h+"_"+t.f+"fps."+lastExt; |
| const lbl = safeName(s.name,40); |
| return base+"_"+String(i+1).padStart(2,"0")+"_"+(lbl || stamp(s.start))+"."+lastExt; |
| } |
| function pushDownload(blob, name){ |
| try{ |
| const a=document.createElement("a"); |
| a.href=URL.createObjectURL(blob); a.download=name; a.style.display="none"; |
| document.body.appendChild(a); a.click(); |
| setTimeout(()=>{ URL.revokeObjectURL(a.href); a.remove(); }, 12000); |
| return name; |
| }catch(e){ return null; } |
| } |
| function download(){ |
| if(!lastBlob || !lastBlob.size) return null; |
| const m = lastMeta || Object.assign(targets(), {at:inT, name:""}); |
| const base = safeName(srcName,60) || "clip"; |
| const lbl = safeName(m.name,40); |
| const name = lastExt==="gif" |
| ? base+"_"+(lbl || stamp(m.at))+"_"+m.w+"px.gif" |
| : base+"_"+(lbl || stamp(m.at))+"_"+m.w+"x"+m.h+"_"+m.f+"fps."+lastExt; |
| return pushDownload(lastBlob, name); |
| } |
| $("dlBtn").addEventListener("click", ()=>{ download(); }); |
| $("clearRes").addEventListener("click", clearResult); |
| function clearResult(){ |
| lastBlob=null; lastMeta=null; $("result").style.display="none"; |
| const ov=$("outVid"); if(ov.src){ URL.revokeObjectURL(ov.src); ov.removeAttribute("src"); } |
| const oi=$("outImg"); if(oi.src){ URL.revokeObjectURL(oi.src); oi.removeAttribute("src"); } |
| setStatus(""); |
| } |
| function clearSaved(){ $("saved").style.display="none"; $("savedList").innerHTML=""; $("savedNote").textContent=""; } |
| function setStatus(s){ $("status").textContent=s; } |
| |
| window.__vt = { |
| get state(){ return {ready:$("app").style.display==="block",loads:loadSeq,dur,inT,outT,natW,natH,srcFps, |
| exporting,size:lastBlob&&lastBlob.size,ext:lastExt, |
| clips:segments.map(s=>({start:+s.start.toFixed(3),end:+s.end.toFixed(3),name:s.name}))}; }, |
| load, doExport, addClip, |
| gif(){ return doExport("gif"); }, |
| set(a,b){ inT=a; outT=b; refresh(); }, |
| setCrop(x,y,w,h){ setCrop(x,y,w,h); showCrop(true); cropChanged(true); }, |
| getCrop(){ return crop && {...crop}; }, |
| setAR(v,l){ applyAR(v, l||String(v)); }, |
| arLabel(){ return cropARLabel; }, |
| setName(i,n){ segments[i].name=n; refresh(); }, |
| clearClips(){ segments=[]; activeSeg=-1; refresh(); } |
| }; |
| })(); |
| </script> |
| </body> |
| </html> |
|
|
