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wrap up before restructure

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buenosairesam
2026-04-10 15:40:56 -03:00
parent e9e1d14e6b
commit 9d3ff2c6ba
4 changed files with 186 additions and 132 deletions
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1
ctrl/sync.sh
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@@ -17,6 +17,7 @@ git -C "$PROJECT_DIR" ls-files --others --ignored --exclude-standard --directory
rsync -avz --delete \ rsync -avz --delete \
--exclude='.git/' \ --exclude='.git/' \
--exclude='data/' \
--exclude-from="$EXCLUDE_FILE" \ --exclude-from="$EXCLUDE_FILE" \
"$PROJECT_DIR/" \ "$PROJECT_DIR/" \
"${REMOTE}:${REMOTE_PATH}" "${REMOTE}:${REMOTE_PATH}"

25
media/docs/index.html
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@@ -130,8 +130,33 @@
<a href="#" data-svg="server-pipeline.svg" data-title="Server Pipeline" data-desc="fMP4 recording, UDP live relay, scene detection (UDS → Python), audio extraction"> <a href="#" data-svg="server-pipeline.svg" data-title="Server Pipeline" data-desc="fMP4 recording, UDP live relay, scene detection (UDS → Python), audio extraction">
Pipeline Pipeline
</a> </a>
<div class="section">Status</div>
<a href="#" data-svg="" data-title="Current State (2026-04-10)" data-desc="Architecture status and known regressions"
onclick="event.preventDefault(); document.querySelectorAll('nav a').forEach(l=>l.classList.remove('active')); this.classList.add('active'); document.getElementById('title').textContent=this.dataset.title; document.getElementById('desc').textContent=this.dataset.desc; document.getElementById('viewer').innerHTML=document.getElementById('status-content').innerHTML; return false;">
State &amp; regressions
</a>
</nav> </nav>
<template id="status-content">
<div style="max-width:720px; font-size:0.85rem; line-height:1.6; color:#cdd6f4">
<h3 style="color:#f38ba8; margin-bottom:0.5rem">Scene detection regressed</h3>
<p>In the Python-only pipeline, scene detection was a branch of the <b>same ffmpeg process</b> that records (fMP4 + UDP relay + CUDA decode + select filter). The flush trick worked because all outputs shared one decoder.</p>
<p style="margin-top:0.5rem">After Rust took over transport, scene detection became a <b>separate ffmpeg</b> fed via <code>scene.sock</code> Unix socket relay. Different buffering semantics broke the "one behind" flush fix, and <code>try_send</code> drops cause decoder corruption until the next keyframe.</p>
<h3 style="color:#a6e3a1; margin:1rem 0 0.5rem">Working fallback</h3>
<p>The Python-only path (<code>StreamRecorder</code> + <code>SessionProcessor</code>) still exists. <code>lifecycle.start(rust_transport=False)</code> bypasses Rust transport entirely. Plan: restore this as the default, keep Rust opt-in.</p>
<h3 style="color:#89b4fa; margin:1rem 0 0.5rem">What Rust transport got right</h3>
<ul style="padding-left:1.2rem">
<li>Connect time: 20s → 3s</li>
<li>Session reload: 1-2s</li>
<li>Custom framed protocol with reconnection support</li>
<li>Clean fMP4 recording + UDP live relay</li>
</ul>
<h3 style="color:#cba6f7; margin:1rem 0 0.5rem">Next: scene detection back into server ffmpeg</h3>
<p>Add scene detection as a third output of the Rust server's ffmpeg command (decode + select filter + MJPEG pipe) instead of relaying raw H.264 to a separate process. See <code>def/10-scene-detect-to-rust.md</code>.</p>
</div>
</template>
<main> <main>
<header> <header>
<h2 id="title">Select a diagram</h2> <h2 id="title">Select a diagram</h2>

5
media/docs/server-pipeline.dot
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@@ -68,4 +68,9 @@ digraph server_pipeline {
// Python reads files // Python reads files
aac_file -> audio_extract [label="reads" style=dashed] aac_file -> audio_extract [label="reads" style=dashed]
active_session -> python [label="discovers\nsession dir" style=dashed] active_session -> python [label="discovers\nsession dir" style=dashed]
// Known regression (2026-04-10)
regression [label="⚠ REGRESSED\n─────────────\nScene relay (separate pipe)\nbreaks 'one behind' flush.\ntry_send drops → decoder\ncorruption until keyframe.\n\nFix: move scene detection\ninto server ffmpeg as 3rd\noutput branch (10-scene-\ndetect-to-rust.md)"
shape=note fillcolor="#3d1e1e" color="#f38ba8" fontcolor="#f38ba8"]
scene_relay -> regression [style=dashed color="#f38ba8"]
} }

287
media/docs/server-pipeline.svg
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@@ -4,260 +4,283 @@
<!-- Generated by graphviz version 14.1.2 (0) <!-- Generated by graphviz version 14.1.2 (0)
--> -->
<!-- Title: server_pipeline Pages: 1 --> <!-- Title: server_pipeline Pages: 1 -->
<svg width="1429pt" height="1141pt" <svg width="1677pt" height="1243pt"
viewBox="0.00 0.00 1429.00 1141.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> viewBox="0.00 0.00 1677.00 1243.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<title>server_pipeline</title> <title>server_pipeline</title>
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<title>cluster_rust</title> <title>cluster_rust</title>
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<text xml:space="preserve" text-anchor="middle" x="690.12" y="-890.63" font-family="monospace" font-size="14.00" fill="#a6e3a1">cht&#45;server (Rust)</text> <text xml:space="preserve" text-anchor="middle" x="799.12" y="-992.85" font-family="monospace" font-size="14.00" fill="#a6e3a1">cht&#45;server (Rust)</text>
</g> </g>
<g id="clust2" class="cluster"> <g id="clust2" class="cluster">
<title>cluster_python</title> <title>cluster_python</title>
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<text xml:space="preserve" text-anchor="middle" x="907.12" y="-293.51" font-family="monospace" font-size="14.00" fill="#cba6f7">Python (cht app)</text> <text xml:space="preserve" text-anchor="middle" x="1168.12" y="-293.51" font-family="monospace" font-size="14.00" fill="#cba6f7">Python (cht app)</text>
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<title>net</title> <title>net</title>
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<text xml:space="preserve" text-anchor="middle" x="666.12" y="-1006.91" font-family="monospace" font-size="14.00" fill="#cdd6f4">TCP :4447</text> <text xml:space="preserve" text-anchor="middle" x="775.12" y="-1109.13" font-family="monospace" font-size="14.00" fill="#cdd6f4">TCP :4447</text>
<text xml:space="preserve" text-anchor="middle" x="666.12" y="-989.66" font-family="monospace" font-size="14.00" fill="#cdd6f4">(WirePacket)</text> <text xml:space="preserve" text-anchor="middle" x="775.12" y="-1091.88" font-family="monospace" font-size="14.00" fill="#cdd6f4">(WirePacket)</text>
</g> </g>
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<g id="node3" class="node"> <g id="node3" class="node">
<title>listener</title> <title>listener</title>
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<text xml:space="preserve" text-anchor="middle" x="666.12" y="-852.74" font-family="monospace" font-size="14.00" fill="#cdd6f4">Listener</text> <text xml:space="preserve" text-anchor="middle" x="775.12" y="-954.96" font-family="monospace" font-size="14.00" fill="#cdd6f4">Listener</text>
<text xml:space="preserve" text-anchor="middle" x="666.12" y="-835.49" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text> <text xml:space="preserve" text-anchor="middle" x="775.12" y="-937.71" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text>
<text xml:space="preserve" text-anchor="middle" x="666.12" y="-818.24" font-family="monospace" font-size="14.00" fill="#cdd6f4">TCP accept</text> <text xml:space="preserve" text-anchor="middle" x="775.12" y="-920.46" font-family="monospace" font-size="14.00" fill="#cdd6f4">TCP accept</text>
<text xml:space="preserve" text-anchor="middle" x="666.12" y="-800.99" font-family="monospace" font-size="14.00" fill="#cdd6f4">reads WirePacket</text> <text xml:space="preserve" text-anchor="middle" x="775.12" y="-903.21" font-family="monospace" font-size="14.00" fill="#cdd6f4">reads WirePacket</text>
<text xml:space="preserve" text-anchor="middle" x="666.12" y="-783.74" font-family="monospace" font-size="14.00" fill="#cdd6f4">routes by type:</text> <text xml:space="preserve" text-anchor="middle" x="775.12" y="-885.96" font-family="monospace" font-size="14.00" fill="#cdd6f4">routes by type:</text>
<text xml:space="preserve" text-anchor="middle" x="666.12" y="-766.49" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;Video → ffmpeg + scene relay</text> <text xml:space="preserve" text-anchor="middle" x="775.12" y="-868.71" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;Video → ffmpeg + scene relay</text>
<text xml:space="preserve" text-anchor="middle" x="666.12" y="-749.24" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;Audio → ADTS file</text> <text xml:space="preserve" text-anchor="middle" x="775.12" y="-851.46" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;Audio → ADTS file</text>
<text xml:space="preserve" text-anchor="middle" x="666.12" y="-731.99" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;Control → session lifecycle</text> <text xml:space="preserve" text-anchor="middle" x="775.12" y="-834.21" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;Control → session lifecycle</text>
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<!-- net&#45;&gt;listener --> <!-- net&#45;&gt;listener -->
<g id="edge1" class="edge"> <g id="edge1" class="edge">
<title>net&#45;&gt;listener</title> <title>net&#45;&gt;listener</title>
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<text xml:space="preserve" text-anchor="middle" x="707.38" y="-919.88" font-family="monospace" font-size="14.00" fill="#a6adc8">WirePacket</text> <text xml:space="preserve" text-anchor="middle" x="816.38" y="-1022.1" font-family="monospace" font-size="14.00" fill="#a6adc8">WirePacket</text>
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<title>python</title> <title>python</title>
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<text xml:space="preserve" text-anchor="middle" x="1033.12" y="-409.79" font-family="monospace" font-size="14.00" fill="#cdd6f4">Python GUI</text> <text xml:space="preserve" text-anchor="middle" x="1239.12" y="-460.9" font-family="monospace" font-size="14.00" fill="#cdd6f4">Python GUI</text>
<text xml:space="preserve" text-anchor="middle" x="1033.12" y="-392.54" font-family="monospace" font-size="14.00" fill="#cdd6f4">(cht app)</text> <text xml:space="preserve" text-anchor="middle" x="1239.12" y="-443.65" font-family="monospace" font-size="14.00" fill="#cdd6f4">(cht app)</text>
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<text xml:space="preserve" text-anchor="middle" x="304.12" y="-618.34" font-family="monospace" font-size="14.00" fill="#cdd6f4">ffmpeg subprocess</text> <text xml:space="preserve" text-anchor="middle" x="413.12" y="-720.55" font-family="monospace" font-size="14.00" fill="#cdd6f4">ffmpeg subprocess</text>
<text xml:space="preserve" text-anchor="middle" x="304.12" y="-601.09" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text> <text xml:space="preserve" text-anchor="middle" x="413.12" y="-703.3" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text>
<text xml:space="preserve" text-anchor="middle" x="304.12" y="-583.84" font-family="monospace" font-size="14.00" fill="#cdd6f4">H.264 pipe:0 → 2 outputs:</text> <text xml:space="preserve" text-anchor="middle" x="413.12" y="-686.05" font-family="monospace" font-size="14.00" fill="#cdd6f4">H.264 pipe:0 → 2 outputs:</text>
<text xml:space="preserve" text-anchor="middle" x="304.12" y="-566.59" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;1. fMP4 (frag_keyframe)</text> <text xml:space="preserve" text-anchor="middle" x="413.12" y="-668.8" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;1. fMP4 (frag_keyframe)</text>
<text xml:space="preserve" text-anchor="middle" x="304.12" y="-549.34" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;2. UDP :4445 (mpegts)</text> <text xml:space="preserve" text-anchor="middle" x="413.12" y="-651.55" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;2. UDP :4445 (mpegts)</text>
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<!-- listener&#45;&gt;ffmpeg_rec --> <!-- listener&#45;&gt;ffmpeg_rec -->
<g id="edge2" class="edge"> <g id="edge2" class="edge">
<title>listener&#45;&gt;ffmpeg_rec</title> <title>listener&#45;&gt;ffmpeg_rec</title>
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<text xml:space="preserve" text-anchor="middle" x="541.35" y="-679.48" font-family="monospace" font-size="14.00" fill="#a6adc8">H.264 video</text> <text xml:space="preserve" text-anchor="middle" x="650.35" y="-781.69" font-family="monospace" font-size="14.00" fill="#a6adc8">H.264 video</text>
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<title>scene_relay</title> <title>scene_relay</title>
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<text xml:space="preserve" text-anchor="middle" x="568.12" y="-609.71" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text> <text xml:space="preserve" text-anchor="middle" x="677.12" y="-711.93" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text>
<text xml:space="preserve" text-anchor="middle" x="568.12" y="-592.46" font-family="monospace" font-size="14.00" fill="#cdd6f4">Unix socket (scene.sock)</text> <text xml:space="preserve" text-anchor="middle" x="677.12" y="-694.68" font-family="monospace" font-size="14.00" fill="#cdd6f4">Unix socket (scene.sock)</text>
<text xml:space="preserve" text-anchor="middle" x="568.12" y="-575.21" font-family="monospace" font-size="14.00" fill="#cdd6f4">buffers latest keyframe</text> <text xml:space="preserve" text-anchor="middle" x="677.12" y="-677.43" font-family="monospace" font-size="14.00" fill="#cdd6f4">buffers latest keyframe</text>
<text xml:space="preserve" text-anchor="middle" x="568.12" y="-557.96" font-family="monospace" font-size="14.00" fill="#cdd6f4">best&#45;effort: drops if slow</text> <text xml:space="preserve" text-anchor="middle" x="677.12" y="-660.18" font-family="monospace" font-size="14.00" fill="#cdd6f4">best&#45;effort: drops if slow</text>
<text xml:space="preserve" text-anchor="middle" x="568.12" y="-540.71" font-family="monospace" font-size="14.00" fill="#cdd6f4">100ms write timeout</text> <text xml:space="preserve" text-anchor="middle" x="677.12" y="-642.93" font-family="monospace" font-size="14.00" fill="#cdd6f4">100ms write timeout</text>
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<text xml:space="preserve" text-anchor="middle" x="681.94" y="-670.85" font-family="monospace" font-size="14.00" fill="#a6adc8">+ keyframe flag</text> <text xml:space="preserve" text-anchor="middle" x="790.94" y="-773.07" font-family="monospace" font-size="14.00" fill="#a6adc8">+ keyframe flag</text>
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<text xml:space="preserve" text-anchor="middle" x="816.12" y="-609.71" font-family="monospace" font-size="14.00" fill="#cdd6f4">Audio Writer</text> <text xml:space="preserve" text-anchor="middle" x="925.12" y="-711.93" font-family="monospace" font-size="14.00" fill="#cdd6f4">Audio Writer</text>
<text xml:space="preserve" text-anchor="middle" x="816.12" y="-592.46" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text> <text xml:space="preserve" text-anchor="middle" x="925.12" y="-694.68" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text>
<text xml:space="preserve" text-anchor="middle" x="816.12" y="-575.21" font-family="monospace" font-size="14.00" fill="#cdd6f4">ADTS header + raw AAC</text> <text xml:space="preserve" text-anchor="middle" x="925.12" y="-677.43" font-family="monospace" font-size="14.00" fill="#cdd6f4">ADTS header + raw AAC</text>
<text xml:space="preserve" text-anchor="middle" x="816.12" y="-557.96" font-family="monospace" font-size="14.00" fill="#cdd6f4">→ stream/audio.aac</text> <text xml:space="preserve" text-anchor="middle" x="925.12" y="-660.18" font-family="monospace" font-size="14.00" fill="#cdd6f4">→ stream/audio.aac</text>
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<g id="edge4" class="edge"> <g id="edge4" class="edge">
<title>listener&#45;&gt;audio_writer</title> <title>listener&#45;&gt;audio_writer</title>
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<text xml:space="preserve" text-anchor="middle" x="805.34" y="-679.48" font-family="monospace" font-size="14.00" fill="#a6adc8">AAC audio</text> <text xml:space="preserve" text-anchor="middle" x="914.34" y="-781.69" font-family="monospace" font-size="14.00" fill="#a6adc8">AAC audio</text>
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<title>active_session</title> <title>active_session</title>
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<text xml:space="preserve" text-anchor="middle" x="1068.12" y="-618.34" font-family="monospace" font-size="14.00" fill="#cdd6f4">active&#45;session</text> <text xml:space="preserve" text-anchor="middle" x="1177.12" y="-720.55" font-family="monospace" font-size="14.00" fill="#cdd6f4">active&#45;session</text>
<text xml:space="preserve" text-anchor="middle" x="1068.12" y="-601.09" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text> <text xml:space="preserve" text-anchor="middle" x="1177.12" y="-703.3" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text>
<text xml:space="preserve" text-anchor="middle" x="1068.12" y="-583.84" font-family="monospace" font-size="14.00" fill="#cdd6f4">file at data/active&#45;session</text> <text xml:space="preserve" text-anchor="middle" x="1177.12" y="-686.05" font-family="monospace" font-size="14.00" fill="#cdd6f4">file at data/active&#45;session</text>
<text xml:space="preserve" text-anchor="middle" x="1068.12" y="-566.59" font-family="monospace" font-size="14.00" fill="#cdd6f4">Python polls to discover</text> <text xml:space="preserve" text-anchor="middle" x="1177.12" y="-668.8" font-family="monospace" font-size="14.00" fill="#cdd6f4">Python polls to discover</text>
<text xml:space="preserve" text-anchor="middle" x="1068.12" y="-549.34" font-family="monospace" font-size="14.00" fill="#cdd6f4">session dir</text> <text xml:space="preserve" text-anchor="middle" x="1177.12" y="-651.55" font-family="monospace" font-size="14.00" fill="#cdd6f4">session dir</text>
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<!-- listener&#45;&gt;active_session --> <!-- listener&#45;&gt;active_session -->
<g id="edge5" class="edge"> <g id="edge5" class="edge">
<title>listener&#45;&gt;active_session</title> <title>listener&#45;&gt;active_session</title>
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<text xml:space="preserve" text-anchor="middle" x="976.83" y="-679.48" font-family="monospace" font-size="14.00" fill="#a6adc8">on SessionStart</text> <text xml:space="preserve" text-anchor="middle" x="1085.83" y="-781.69" font-family="monospace" font-size="14.00" fill="#a6adc8">on SessionStart</text>
</g> </g>
<!-- fmp4 --> <!-- fmp4 -->
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<title>fmp4</title> <title>fmp4</title>
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<text xml:space="preserve" text-anchor="middle" x="88.12" y="-418.42" font-family="monospace" font-size="14.00" fill="#cdd6f4">stream/</text> <text xml:space="preserve" text-anchor="middle" x="88.12" y="-469.52" font-family="monospace" font-size="14.00" fill="#cdd6f4">stream/</text>
<text xml:space="preserve" text-anchor="middle" x="88.12" y="-401.17" font-family="monospace" font-size="14.00" fill="#cdd6f4">recording_000.mp4</text> <text xml:space="preserve" text-anchor="middle" x="88.12" y="-452.27" font-family="monospace" font-size="14.00" fill="#cdd6f4">recording_000.mp4</text>
<text xml:space="preserve" text-anchor="middle" x="88.12" y="-383.92" font-family="monospace" font-size="14.00" fill="#cdd6f4">(fragmented MP4)</text> <text xml:space="preserve" text-anchor="middle" x="88.12" y="-435.02" font-family="monospace" font-size="14.00" fill="#cdd6f4">(fragmented MP4)</text>
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<!-- ffmpeg_rec&#45;&gt;fmp4 --> <!-- ffmpeg_rec&#45;&gt;fmp4 -->
<g id="edge7" class="edge"> <g id="edge7" class="edge">
<title>ffmpeg_rec&#45;&gt;fmp4</title> <title>ffmpeg_rec&#45;&gt;fmp4</title>
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<text xml:space="preserve" text-anchor="middle" x="225.56" y="-488.19" font-family="monospace" font-size="14.00" fill="#a6adc8">copy</text> <text xml:space="preserve" text-anchor="middle" x="288.5" y="-590.41" font-family="monospace" font-size="14.00" fill="#a6adc8">copy</text>
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<!-- udp_live --> <!-- udp_live -->
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<title>udp_live</title> <title>udp_live</title>
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<text xml:space="preserve" text-anchor="middle" x="351.12" y="-409.79" font-family="monospace" font-size="14.00" fill="#cdd6f4">UDP :4445</text> <text xml:space="preserve" text-anchor="middle" x="351.12" y="-460.9" font-family="monospace" font-size="14.00" fill="#cdd6f4">UDP :4445</text>
<text xml:space="preserve" text-anchor="middle" x="351.12" y="-392.54" font-family="monospace" font-size="14.00" fill="#cdd6f4">(mpegts → mpv)</text> <text xml:space="preserve" text-anchor="middle" x="351.12" y="-443.65" font-family="monospace" font-size="14.00" fill="#cdd6f4">(mpegts → mpv)</text>
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<!-- ffmpeg_rec&#45;&gt;udp_live --> <!-- ffmpeg_rec&#45;&gt;udp_live -->
<g id="edge8" class="edge"> <g id="edge8" class="edge">
<title>ffmpeg_rec&#45;&gt;udp_live</title> <title>ffmpeg_rec&#45;&gt;udp_live</title>
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<polygon fill="#585b70" stroke="#585b70" points="338.33,-469.92 337.46,-459.36 331.56,-468.15 338.33,-469.92"/> <polygon fill="#585b70" stroke="#585b70" points="371.13,-519.19 365.16,-510.43 364.37,-521 371.13,-519.19"/>
<text xml:space="preserve" text-anchor="middle" x="349.72" y="-488.19" font-family="monospace" font-size="14.00" fill="#a6adc8">copy</text> <text xml:space="preserve" text-anchor="middle" x="407.8" y="-590.41" font-family="monospace" font-size="14.00" fill="#a6adc8">copy</text>
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<!-- scene_ffmpeg --> <!-- scene_ffmpeg -->
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<title>scene_ffmpeg</title> <title>scene_ffmpeg</title>
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<text xml:space="preserve" text-anchor="middle" x="622.12" y="-255.62" font-family="monospace" font-size="14.00" fill="#cdd6f4">Scene Detector</text> <text xml:space="preserve" text-anchor="middle" x="883.12" y="-255.62" font-family="monospace" font-size="14.00" fill="#cdd6f4">Scene Detector</text>
<text xml:space="preserve" text-anchor="middle" x="622.12" y="-238.37" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text> <text xml:space="preserve" text-anchor="middle" x="883.12" y="-238.37" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text>
<text xml:space="preserve" text-anchor="middle" x="622.12" y="-221.12" font-family="monospace" font-size="14.00" fill="#cdd6f4">connects to scene.sock</text> <text xml:space="preserve" text-anchor="middle" x="883.12" y="-221.12" font-family="monospace" font-size="14.00" fill="#cdd6f4">connects to scene.sock</text>
<text xml:space="preserve" text-anchor="middle" x="622.12" y="-203.87" font-family="monospace" font-size="14.00" fill="#cdd6f4">pipes H.264 → ffmpeg:</text> <text xml:space="preserve" text-anchor="middle" x="883.12" y="-203.87" font-family="monospace" font-size="14.00" fill="#cdd6f4">pipes H.264 → ffmpeg:</text>
<text xml:space="preserve" text-anchor="middle" x="622.12" y="-186.62" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;CUDA decode</text> <text xml:space="preserve" text-anchor="middle" x="883.12" y="-186.62" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;CUDA decode</text>
<text xml:space="preserve" text-anchor="middle" x="622.12" y="-169.37" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;select=gt(scene,thresh)</text> <text xml:space="preserve" text-anchor="middle" x="883.12" y="-169.37" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;select=gt(scene,thresh)</text>
<text xml:space="preserve" text-anchor="middle" x="622.12" y="-152.12" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;showinfo → timestamps</text> <text xml:space="preserve" text-anchor="middle" x="883.12" y="-152.12" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;showinfo → timestamps</text>
<text xml:space="preserve" text-anchor="middle" x="622.12" y="-134.87" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;MJPEG → JPEG frames</text> <text xml:space="preserve" text-anchor="middle" x="883.12" y="-134.87" font-family="monospace" font-size="14.00" fill="#cdd6f4"> &#160;MJPEG → JPEG frames</text>
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<!-- scene_relay&#45;&gt;scene_ffmpeg --> <!-- scene_relay&#45;&gt;scene_ffmpeg -->
<g id="edge6" class="edge"> <g id="edge6" class="edge">
<title>scene_relay&#45;&gt;scene_ffmpeg</title> <title>scene_relay&#45;&gt;scene_ffmpeg</title>
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<text xml:space="preserve" text-anchor="middle" x="654.12" y="-409.79" font-family="monospace" font-size="14.00" fill="#a6adc8">raw H.264</text> <text xml:space="preserve" text-anchor="middle" x="607.5" y="-460.9" font-family="monospace" font-size="14.00" fill="#a6adc8">raw H.264</text>
<text xml:space="preserve" text-anchor="middle" x="654.12" y="-392.54" font-family="monospace" font-size="14.00" fill="#a6adc8">(Unix socket)</text> <text xml:space="preserve" text-anchor="middle" x="607.5" y="-443.65" font-family="monospace" font-size="14.00" fill="#a6adc8">(Unix socket)</text>
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<text xml:space="preserve" text-anchor="middle" x="799.12" y="-537.9" font-family="monospace" font-size="14.00" fill="#f38ba8">⚠ REGRESSED</text>
<text xml:space="preserve" text-anchor="middle" x="799.12" y="-520.65" font-family="monospace" font-size="14.00" fill="#f38ba8">─────────────</text>
<text xml:space="preserve" text-anchor="middle" x="799.12" y="-503.4" font-family="monospace" font-size="14.00" fill="#f38ba8">Scene relay (separate pipe)</text>
<text xml:space="preserve" text-anchor="middle" x="799.12" y="-486.15" font-family="monospace" font-size="14.00" fill="#f38ba8">breaks &#39;one behind&#39; flush.</text>
<text xml:space="preserve" text-anchor="middle" x="799.12" y="-468.9" font-family="monospace" font-size="14.00" fill="#f38ba8">try_send drops → decoder</text>
<text xml:space="preserve" text-anchor="middle" x="799.12" y="-451.65" font-family="monospace" font-size="14.00" fill="#f38ba8">corruption until keyframe.</text>
<text xml:space="preserve" text-anchor="middle" x="799.12" y="-418.4" font-family="monospace" font-size="14.00" fill="#f38ba8">Fix: move scene detection</text>
<text xml:space="preserve" text-anchor="middle" x="799.12" y="-401.15" font-family="monospace" font-size="14.00" fill="#f38ba8">into server ffmpeg as 3rd</text>
<text xml:space="preserve" text-anchor="middle" x="799.12" y="-383.9" font-family="monospace" font-size="14.00" fill="#f38ba8">output branch (10&#45;scene&#45;</text>
<text xml:space="preserve" text-anchor="middle" x="799.12" y="-366.65" font-family="monospace" font-size="14.00" fill="#f38ba8">detect&#45;to&#45;rust.md)</text>
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<!-- scene_relay&#45;&gt;regression -->
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<title>scene_relay&#45;&gt;regression</title>
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<text xml:space="preserve" text-anchor="middle" x="816.12" y="-401.17" font-family="monospace" font-size="14.00" fill="#cdd6f4">audio.aac</text> <text xml:space="preserve" text-anchor="middle" x="1022.12" y="-452.27" font-family="monospace" font-size="14.00" fill="#cdd6f4">audio.aac</text>
<text xml:space="preserve" text-anchor="middle" x="816.12" y="-383.92" font-family="monospace" font-size="14.00" fill="#cdd6f4">(ADTS&#45;wrapped)</text> <text xml:space="preserve" text-anchor="middle" x="1022.12" y="-435.02" font-family="monospace" font-size="14.00" fill="#cdd6f4">(ADTS&#45;wrapped)</text>
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<!-- audio_writer&#45;&gt;aac_file --> <!-- audio_writer&#45;&gt;aac_file -->
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<title>audio_writer&#45;&gt;aac_file</title> <title>audio_writer&#45;&gt;aac_file</title>
<path fill="none" stroke="#585b70" d="M816.12,-545.15C816.12,-517.19 816.12,-480.6 816.12,-452.07"/> <path fill="none" stroke="#585b70" d="M942.92,-647.22C960.12,-606.1 986.09,-544.05 1003.56,-502.32"/>
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<!-- active_session&#45;&gt;python --> <!-- active_session&#45;&gt;python -->
<g id="edge14" class="edge"> <g id="edge14" class="edge">
<title>active_session&#45;&gt;python</title> <title>active_session&#45;&gt;python</title>
<path fill="none" stroke="#585b70" stroke-dasharray="5,2" d="M1058.28,-536.7C1054.22,-515.73 1049.47,-491.21 1045.2,-469.16"/> <path fill="none" stroke="#585b70" stroke-dasharray="5,2" d="M1190.81,-638.58C1200.19,-603.51 1212.68,-556.8 1222.62,-519.67"/>
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<text xml:space="preserve" text-anchor="middle" x="1098.1" y="-496.82" font-family="monospace" font-size="14.00" fill="#a6adc8">discovers</text> <text xml:space="preserve" text-anchor="middle" x="1251.64" y="-599.04" font-family="monospace" font-size="14.00" fill="#a6adc8">discovers</text>
<text xml:space="preserve" text-anchor="middle" x="1098.1" y="-479.57" font-family="monospace" font-size="14.00" fill="#a6adc8">session dir</text> <text xml:space="preserve" text-anchor="middle" x="1251.64" y="-581.79" font-family="monospace" font-size="14.00" fill="#a6adc8">session dir</text>
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<title>frames</title> <title>frames</title>
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<text xml:space="preserve" text-anchor="middle" x="622.12" y="-12.59" font-family="monospace" font-size="14.00" fill="#cdd6f4">index.json + *.jpg</text> <text xml:space="preserve" text-anchor="middle" x="883.12" y="-12.59" font-family="monospace" font-size="14.00" fill="#cdd6f4">index.json + *.jpg</text>
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<title>scene_ffmpeg&#45;&gt;frames</title> <title>scene_ffmpeg&#45;&gt;frames</title>
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<text xml:space="preserve" text-anchor="middle" x="671.62" y="-90.98" font-family="monospace" font-size="14.00" fill="#a6adc8">JPEG on</text> <text xml:space="preserve" text-anchor="middle" x="932.62" y="-90.98" font-family="monospace" font-size="14.00" fill="#a6adc8">JPEG on</text>
<text xml:space="preserve" text-anchor="middle" x="671.62" y="-73.73" font-family="monospace" font-size="14.00" fill="#a6adc8">scene change</text> <text xml:space="preserve" text-anchor="middle" x="932.62" y="-73.73" font-family="monospace" font-size="14.00" fill="#a6adc8">scene change</text>
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<title>audio_extract</title> <title>audio_extract</title>
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<text xml:space="preserve" text-anchor="middle" x="878.12" y="-212.5" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text> <text xml:space="preserve" text-anchor="middle" x="1139.12" y="-212.5" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text>
<text xml:space="preserve" text-anchor="middle" x="878.12" y="-195.25" font-family="monospace" font-size="14.00" fill="#cdd6f4">reads audio.aac</text> <text xml:space="preserve" text-anchor="middle" x="1139.12" y="-195.25" font-family="monospace" font-size="14.00" fill="#cdd6f4">reads audio.aac</text>
<text xml:space="preserve" text-anchor="middle" x="878.12" y="-178" font-family="monospace" font-size="14.00" fill="#cdd6f4">ffmpeg → 16kHz mono WAV</text> <text xml:space="preserve" text-anchor="middle" x="1139.12" y="-178" font-family="monospace" font-size="14.00" fill="#cdd6f4">ffmpeg → 16kHz mono WAV</text>
<text xml:space="preserve" text-anchor="middle" x="878.12" y="-160.75" font-family="monospace" font-size="14.00" fill="#cdd6f4">chunks + transcript WAVs</text> <text xml:space="preserve" text-anchor="middle" x="1139.12" y="-160.75" font-family="monospace" font-size="14.00" fill="#cdd6f4">chunks + transcript WAVs</text>
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<title>audio_dir</title> <title>audio_dir</title>
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<text xml:space="preserve" text-anchor="middle" x="1258.12" y="-383.92" font-family="monospace" font-size="14.00" fill="#cdd6f4">transcript_*.wav</text> <text xml:space="preserve" text-anchor="middle" x="1464.12" y="-435.02" font-family="monospace" font-size="14.00" fill="#cdd6f4">transcript_*.wav</text>
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<title>audio_extract&#45;&gt;audio_dir</title> <title>audio_extract&#45;&gt;audio_dir</title>
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<text xml:space="preserve" text-anchor="middle" x="1163.12" y="-229.75" font-family="monospace" font-size="14.00" fill="#cdd6f4">Transcriber</text> <text xml:space="preserve" text-anchor="middle" x="1424.12" y="-229.75" font-family="monospace" font-size="14.00" fill="#cdd6f4">Transcriber</text>
<text xml:space="preserve" text-anchor="middle" x="1163.12" y="-212.5" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text> <text xml:space="preserve" text-anchor="middle" x="1424.12" y="-212.5" font-family="monospace" font-size="14.00" fill="#cdd6f4">─────────────</text>
<text xml:space="preserve" text-anchor="middle" x="1163.12" y="-195.25" font-family="monospace" font-size="14.00" fill="#cdd6f4">faster&#45;whisper (CUDA)</text> <text xml:space="preserve" text-anchor="middle" x="1424.12" y="-195.25" font-family="monospace" font-size="14.00" fill="#cdd6f4">faster&#45;whisper (CUDA)</text>
<text xml:space="preserve" text-anchor="middle" x="1163.12" y="-178" font-family="monospace" font-size="14.00" fill="#cdd6f4">segment grouping</text> <text xml:space="preserve" text-anchor="middle" x="1424.12" y="-178" font-family="monospace" font-size="14.00" fill="#cdd6f4">segment grouping</text>
<text xml:space="preserve" text-anchor="middle" x="1163.12" y="-160.75" font-family="monospace" font-size="14.00" fill="#cdd6f4">slider: chunk size + lines/group</text> <text xml:space="preserve" text-anchor="middle" x="1424.12" y="-160.75" font-family="monospace" font-size="14.00" fill="#cdd6f4">slider: chunk size + lines/group</text>
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<title>aac_file&#45;&gt;audio_extract</title> <title>aac_file&#45;&gt;audio_extract</title>
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<text xml:space="preserve" text-anchor="middle" x="862.2" y="-322.76" font-family="monospace" font-size="14.00" fill="#a6adc8">reads</text> <text xml:space="preserve" text-anchor="middle" x="1104.76" y="-322.76" font-family="monospace" font-size="14.00" fill="#a6adc8">reads</text>
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<title>audio_dir&#45;&gt;transcriber</title> <title>audio_dir&#45;&gt;transcriber</title>
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<text xml:space="preserve" text-anchor="middle" x="1265.93" y="-322.76" font-family="monospace" font-size="14.00" fill="#a6adc8">WAV chunks</text> <text xml:space="preserve" text-anchor="middle" x="1485.38" y="-322.76" font-family="monospace" font-size="14.00" fill="#a6adc8">WAV chunks</text>
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