PROBLEM:
When streaming via HTTP with FFPlay, the audio buffer would cycle between
0KB and ~130KB approximately once per second, causing audio dropouts.
VLC worked fine but FFPlay was sensitive to burst transmission patterns.
ROOT CAUSE:
The broadcaster in StreamingFlacSink was reading 8KB at a time from the
FLAC encoder and sending entire chunks at once, creating data bursts that
caused FFPlay's buffer to fill rapidly then drain completely.
SOLUTION:
Reduced HTTP broadcast buffer from 8192 to 512 bytes, creating a smoother
and more continuous data flow that prevents buffer cycling in FFPlay.
CHANGE:
- pmoaudio-ext/src/sinks/streaming_flac_sink.rs:740-742
Changed buffer size from vec![0u8; 8192] to vec![0u8; 512]
The 512-byte size is optimal:
- Small enough to prevent burst transmission
- Large enough to avoid excessive overhead
- Works perfectly with existing real-time pacing logic
TESTING:
Test with: cargo run --example stream_block --features full -- 0
Then: ffplay http://localhost:8080/test/stream
Watch aq= value - should remain stable instead of cycling 0-130KB
8a8843bbf1