d62af34e98
One container per channel. Built like capture/build-with-decklink: NDI + DeckLink SDKs fetched at build, runs --privileged with Xvfb for the GL context where no real display is present. Components: - entrypoint.sh: Xvfb + CasparCG launch, creates /media/live/<CHANNEL_ID> - src/amcp.js: TCP AMCP client - src/playout-manager.js: channel lifecycle, playlist walk via LOADBG AUTO for gapless transitions; primary consumer (decklink/ndi/srt/rtmp) plus a second FFMPEG HLS consumer (~600 kbps, 2s segments) for the UI preview - src/index.js: HTTP shim — /channel/start, /playlist/load, transport - frame-rate helper picks fps from video_format (59.94 → 60000/1001) so SEEK / LENGTH frame math is correct
85 lines
3.2 KiB
JavaScript
85 lines
3.2 KiB
JavaScript
import express from 'express';
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import cors from 'cors';
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import dotenv from 'dotenv';
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import playoutManager from './playout-manager.js';
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dotenv.config();
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const app = express();
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const PORT = process.env.PORT || 3002;
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app.use(cors());
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app.use(express.json());
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app.get('/health', (req, res) => res.json({ status: 'ok' }));
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// Start the channel's output consumer. Body: { outputType, outputConfig, videoFormat }
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app.post('/channel/start', async (req, res) => {
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try {
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const out = await playoutManager.startChannel(req.body || {});
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res.json(out);
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} catch (err) {
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console.error('[playout] /channel/start error:', err.message);
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res.status(500).json({ error: err.message });
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}
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});
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app.post('/channel/stop', async (req, res) => {
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try { res.json(await playoutManager.stopChannel()); }
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catch (err) { res.status(500).json({ error: err.message }); }
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});
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// Load + start a playlist. Body: { items: [...], loop }
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app.post('/playlist/load', async (req, res) => {
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try {
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const { items = [], loop = false } = req.body || {};
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res.json(await playoutManager.loadPlaylist({ items, loop }));
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} catch (err) {
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console.error('[playout] /playlist/load error:', err.message);
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res.status(500).json({ error: err.message });
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}
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});
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app.post('/transport/skip', async (req, res) => { try { res.json(await playoutManager.skip()); } catch (e) { res.status(500).json({ error: e.message }); } });
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app.post('/transport/pause', async (req, res) => { try { res.json(await playoutManager.pause()); } catch (e) { res.status(500).json({ error: e.message }); } });
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app.post('/transport/resume', async (req, res) => { try { res.json(await playoutManager.resume()); } catch (e) { res.status(500).json({ error: e.message }); } });
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app.get('/status', (req, res) => res.json(playoutManager.getStatus()));
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// Auto-start: when the sidecar is spawned by mam-api with channel env, bring up
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// the output consumer immediately so the container is "on air idle" (black/slate)
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// the moment it boots, mirroring the capture sidecar's bootstrap pattern.
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async function bootstrap() {
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const outputType = process.env.OUTPUT_TYPE;
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if (!outputType) {
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console.log('[bootstrap] no OUTPUT_TYPE — on-demand sidecar, waiting for /channel/start');
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return;
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}
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let outputConfig = {};
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try { outputConfig = JSON.parse(process.env.OUTPUT_CONFIG || '{}'); }
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catch (err) { console.error('[bootstrap] bad OUTPUT_CONFIG json:', err.message); }
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const videoFormat = process.env.VIDEO_FORMAT || '1080i5994';
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try {
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await playoutManager.startChannel({ outputType, outputConfig, videoFormat });
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} catch (err) {
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console.error('[bootstrap] channel start failed:', err.message);
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}
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}
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const server = app.listen(PORT, () => {
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console.log(`Wild Dragon Playout Service listening on port ${PORT}`);
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// Give CasparCG a moment to come up (started by the container entrypoint).
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playoutManager.amcp.connect();
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bootstrap();
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});
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function shutdown(sig) {
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console.log(`[playout] ${sig} — shutting down`);
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playoutManager.stopChannel().catch(() => {}).finally(() => {
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playoutManager.amcp.close();
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server.close(() => process.exit(0));
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setTimeout(() => process.exit(0), 5000);
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});
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}
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process.on('SIGTERM', () => shutdown('SIGTERM'));
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process.on('SIGINT', () => shutdown('SIGINT'));
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