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Force GPU transcoding (h264_nvenc) for Live TV when GPU toggle is enabled

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Michael committed 2026-01-01 23:19:48 +01:00
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commit a00d5ae4da
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+10 -3
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bin/api/streaming_handler.dart
+10 -3
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@@ -194,15 +194,22 @@ Handler createLiveStreamHandler(
// Output encoding options // Output encoding options
if (useNvidiaGpu) { if (useNvidiaGpu) {
// With GPU: Use NVENC for any re-encoding needed // With GPU: Transcode using NVIDIA NVENC for hardware acceleration
print('[Live] Transcoding video with h264_nvenc (GPU)');
ffmpegArgs.addAll([ ffmpegArgs.addAll([
'-c:v', 'copy', // Still copy video (no transcode needed for live) '-c:v', 'h264_nvenc', // Use NVIDIA NVENC encoder
'-preset', 'p4', // Good quality/speed balance (p1=fastest, p7=best)
'-tune', 'll', // Low latency tuning for live streams
'-rc', 'vbr', // Variable bitrate
'-cq', '23', // Quality level (similar to CRF)
'-maxrate', '6000k', // Max bitrate for live
'-bufsize', '12000k', // Buffer size
'-c:a', 'aac', // Audio to AAC (browser compatible) '-c:a', 'aac', // Audio to AAC (browser compatible)
'-b:a', '192k', '-b:a', '192k',
'-ac', '2', '-ac', '2',
]); ]);
} else { } else {
// Without GPU: Standard CPU processing // Without GPU: Standard CPU processing (copy video)
ffmpegArgs.addAll([ ffmpegArgs.addAll([
'-c:v', 'copy', // Video: Direct copy (Very low CPU) '-c:v', 'copy', // Video: Direct copy (Very low CPU)
'-c:a', 'aac', // Audio: Transcode to AAC '-c:a', 'aac', // Audio: Transcode to AAC