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feat: add core server with REST API, Xtream proxy, streaming, and watch history provider

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Michael committed 2025-12-06 13:40:48 +01:00
1 parent e32ccd6999
commit 68a03fb58e
4 files changed
+328 -87
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bin/server.dart
+47 -17
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@@ -406,47 +406,77 @@ Handler _createStreamHandler() {
// Transcode to H.264/AAC for browser compatibility (HEVC not supported in Chrome)
// Using fast preset for lower CPU usage
// Added resilience flags for corrupted/discontinuous streams
final process = await Process.start('ffmpeg', [
//
// Check if this is a VOD (file) or live stream
final isVod = streamId.startsWith('vod_');
final ffmpegArgs = <String>[
'-y', // Overwrite output files
'-loglevel', 'warning', // Reduce verbose output
'-err_detect', 'ignore_err', // Ignore decoding errors
'-fflags', '+genpts+discardcorrupt+igndts', // Generate PTS, discard corrupt frames, ignore DTS
'-flags', 'low_delay', // Low delay mode
'-analyzeduration', '2000000', // Limit analysis time (2 seconds)
'-probesize', '1000000', // Limit probe size (1MB)
'-fflags', '+genpts+discardcorrupt', // Generate PTS, discard corrupt frames
'-analyzeduration', isVod ? '10000000' : '2000000', // 10s for VOD, 2s for live
'-probesize', isVod ? '5000000' : '1000000', // 5MB for VOD, 1MB for live
'-user_agent', 'VLC/3.0.18 LibVLC/3.0.18',
'-headers', 'Accept: */*\r\nConnection: keep-alive\r\n',
'-reconnect', '1',
'-reconnect_streamed', '1',
'-reconnect_delay_max', '5',
'-reconnect_on_network_error', '1', // Reconnect on network errors
'-reconnect_on_http_error', '4xx,5xx', // Reconnect on HTTP errors
];
// Add reconnect flags only for live streams (not VOD)
if (!isVod) {
ffmpegArgs.addAll([
'-reconnect', '1',
'-reconnect_streamed', '1',
'-reconnect_delay_max', '5',
'-reconnect_on_network_error', '1',
'-reconnect_on_http_error', '4xx,5xx',
]);
}
ffmpegArgs.addAll([
'-i', iptvUrl,
// Video: transcode to H.264 for browser compatibility
'-c:v', 'libx264',
'-preset', 'ultrafast', // Fastest encoding (less CPU)
'-tune', 'zerolatency', // Low latency for live streaming
'-profile:v', 'baseline', // Most compatible H.264 profile
'-level', '3.0',
'-level', '3.1',
'-pix_fmt', 'yuv420p', // Required for browser compatibility
'-b:v', '2500k', // 2.5 Mbps video bitrate
'-maxrate', '3000k',
'-bufsize', '6000k',
'-vsync', 'passthrough', // Pass through timestamps as-is (fixes discontinuity)
]);
// Add latency flags only for live streams
if (!isVod) {
ffmpegArgs.addAll([
'-tune', 'zerolatency', // Low latency for live streaming
'-vsync', 'passthrough', // Pass through timestamps as-is
]);
} else {
ffmpegArgs.addAll([
'-vsync', 'cfr', // Constant frame rate for VOD
'-g', '48', // Keyframe every 2 seconds at 24fps
'-keyint_min', '48',
]);
}
ffmpegArgs.addAll([
'-avoid_negative_ts', 'make_zero', // Handle negative timestamps
// Audio: transcode to AAC
'-c:a', 'aac',
'-b:a', '128k',
'-ar', '44100',
'-async', '1', // Audio sync (stretch/compression allowed)
'-ac', '2', // Force stereo
// HLS output settings
'-f', 'hls',
'-hls_time', '2', // 2 second segments
'-hls_list_size', '5', // Keep only last 5 segments
'-hls_flags', 'delete_segments+append_list+omit_endlist',
'-hls_time', isVod ? '4' : '2', // 4 second segments for VOD, 2 for live
'-hls_list_size', isVod ? '0' : '5', // Keep all segments for VOD, last 5 for live
'-hls_flags', isVod ? 'independent_segments' : 'delete_segments+append_list+omit_endlist',
'-hls_segment_filename', '${outputDir.path}/segment_%d.ts',
outputPath,
]);
final process = await Process.start('ffmpeg', ffmpegArgs);
_activeStreams[streamId] = process;
// Collect FFmpeg stderr for error reporting