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Djeex
2026-07-30 22:31:34 +02:00
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templates/index.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Instagram HDR Assembler</title>
<link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}">
</head>
<body>
<div class="wrap">
<p class="eyebrow">Instagram HDR Assembler</p>
<h1>Build your HDR JPEG for Instagram</h1>
<p class="subtitle">Drop your SDR export and your HDR export from Lightroom / Camera Raw. The script does the rest — gain map, 4:2:0 subsampling, Instagram metadata injection. Add more pairs to process several photos in one go.</p>
<div class="card">
{% if error %}
<div class="error-banner">{{ error }}</div>
{% endif %}
<form action="/convert" method="post" enctype="multipart/form-data">
<div id="duos">
<div class="duo">
<button type="button" class="remove-duo" title="Remove this pair" aria-label="Remove this pair">&times;</button>
<div class="dropzones">
<div class="dropzone" data-zone="sdr">
<span class="tag">SDR fallback</span>
<div class="hint">.jpg / .jpeg</div>
<div class="filename"></div>
<input type="file" name="sdr[]" accept=".jpg,.jpeg" required>
</div>
<div class="dropzone" data-zone="hdr">
<span class="tag">HDR export</span>
<div class="hint">.jpg (gain map), or 32-bit float .tif</div>
<div class="filename"></div>
<input type="file" name="hdr[]" accept=".jpg,.jpeg,.tif,.tiff" required>
</div>
</div>
</div>
</div>
<button type="button" class="add-duo" id="add-duo">+ Add another pair</button>
<button class="run" type="submit">Assemble the HDR</button>
</form>
</div>
<p class="footnote">
Each pair's files must have identical dimensions, matching exactly one of Instagram's feed
resolutions: <strong>1080x1080</strong> (1:1), <strong>1080x1350</strong> (4:5), or
<strong>1080x566</strong> (1.91:1). Assembling more than one pair downloads as a <code>.zip</code>.
HDR can be a regular gain-map JPEG or Lightroom's 32-bit float linear HDR TIFF export; a
TIFF HDR file gives a more precise result than the JPEG gain-map route.
</p>
<p class="version">Instagram HDR Assembler v{{ app_version }}</p>
</div>
<script>
(function () {
var duosContainer = document.getElementById('duos');
var addBtn = document.getElementById('add-duo');
function updateFilename(zone) {
var input = zone.querySelector('input[type="file"]');
var filenameEl = zone.querySelector('.filename');
if (input.files && input.files.length > 0) {
zone.classList.add('has-file');
filenameEl.textContent = input.files[0].name;
filenameEl.style.display = 'block';
} else {
zone.classList.remove('has-file');
filenameEl.style.display = 'none';
}
}
duosContainer.addEventListener('change', function (e) {
var zone = e.target.closest('.dropzone');
if (zone) updateFilename(zone);
});
['dragover', 'dragenter'].forEach(function (evt) {
duosContainer.addEventListener(evt, function (e) {
var zone = e.target.closest('.dropzone');
if (zone) { e.preventDefault(); zone.classList.add('has-file'); }
});
});
duosContainer.addEventListener('click', function (e) {
if (!e.target.classList.contains('remove-duo')) return;
var duos = duosContainer.querySelectorAll('.duo');
if (duos.length > 1) {
e.target.closest('.duo').remove();
}
});
addBtn.addEventListener('click', function () {
var clone = duosContainer.querySelector('.duo').cloneNode(true);
clone.querySelectorAll('input[type="file"]').forEach(function (input) { input.value = ''; });
clone.querySelectorAll('.filename').forEach(function (el) {
el.textContent = '';
el.style.display = 'none';
});
clone.querySelectorAll('.dropzone').forEach(function (zone) { zone.classList.remove('has-file'); });
duosContainer.appendChild(clone);
});
})();
</script>
</body>
</html>
templates/result.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Instagram HDR Assembler — Result</title>
<link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}">
</head>
<body>
<div class="wrap">
<p class="eyebrow">Conversion report</p>
<h1>{{ heading }}</h1>
{% for item in items %}
<div class="card pair-card">
<span class="status {{ 'ok' if item.success else 'err' }}">
{{ "✓ success" if item.success else "✗ error" }}{% if total_count > 1 %} — {{ item.name }}{% endif %}
</span>
{% if item.warning %}
<div class="warning-banner">
⚠ The report flags a <strong>negative GainMapMin</strong> — that's the same symptom as
the bug reported on Lightroom Mobile: Instagram may reject this file despite a
"successful" conversion. Worth tweaking the HDR export settings before
re-uploading if the upload fails.
</div>
{% endif %}
<pre class="log">{{ item.log }}</pre>
</div>
{% endfor %}
<div class="actions">
{% if ok_count > 0 %}
<a class="btn-download" href="{{ url_for('download', job_id=job_id) }}">
{{ "Download the JPEG" if ok_count == 1 else "Download .zip (" ~ ok_count ~ " files)" }}
</a>
{% endif %}
<a class="btn-secondary" href="{{ url_for('index') }}">← New conversion</a>
</div>
<p class="footnote">
Remember to upload from a desktop browser (up-to-date Chrome) afterwards, choosing
<code>Original</code> as the crop — not the default 1:1 crop.
</p>
<p class="version">Instagram HDR Assembler v{{ app_version }}</p>
</div>
<script>
(function () {
var jobId = {{ job_id | tojson }};
// Keeps the job's files alive while this page is open. If pings
// stop (tab closed, navigated away) the server purges the job a
// few seconds later. A refresh just resumes pinging, so it's safe.
function ping() {
if (document.visibilityState === 'visible') {
fetch('/heartbeat/' + jobId, { method: 'POST', keepalive: true }).catch(function () {});
}
}
ping();
setInterval(ping, 4000);
})();
</script>
</body>
</html>