it's good and seamless except for that dang popping!

src/decoder.rs

@@ -114,8 +114,8 @@ impl Decoder {
 	
 	pub fn fill_buffer (&mut self, pcm_buffers: &mut PcmBuffers) -> Result <bool> {
 		match self.resampler.delay () {
-			Some (x) if x.milliseconds > 500 => {
-				// tracing::trace! ("flushing resampler ({} ms)", x.milliseconds);
+			Some (x) => {
+				tracing::trace! ("flushing resampler ({} ms)", x.milliseconds);
 				let mut frame_resampled = ffmpeg_next::util::frame::Audio::empty ();
 				frame_resampled.set_channel_layout (ChannelLayout::STEREO);
 				frame_resampled.set_format (Sample::F32 (sample::Type::Packed));
@@ -136,6 +136,10 @@ impl Decoder {
 		if self.decoder.receive_frame (&mut frame_src).is_ok () {
 			//eprintln! ("decoder.receive_frame");
 			let mut frame_resampled = ffmpeg_next::util::frame::Audio::empty ();
+			frame_resampled.set_channel_layout (ChannelLayout::STEREO);
+			frame_resampled.set_format (Sample::F32 (sample::Type::Packed));
+			frame_resampled.set_rate (48000);
+			
 			self.resampler.run (&frame_src, &mut frame_resampled)?;
 			pcm_buffers.produce_bytes (frame_resampled.data (0));
 			return Ok (true);
@@ -151,18 +155,6 @@ impl Decoder {
 			}
 		}
 		
-		//eprintln! ("Decoder ran out of work");
-		
-		if self.resampler.delay ().is_some () {
-			tracing::trace! ("flushing resampler (out of compressed packets)");
-			let mut frame_resampled = ffmpeg_next::util::frame::Audio::empty ();
-			
-			if self.resampler.flush (&mut frame_resampled).is_ok () {
-				pcm_buffers.produce_bytes (frame_resampled.data (0));
-				return Ok (true);
-			}
-		}
-		
 		Ok (false)
 	}
 }

src/main.rs

@@ -89,9 +89,10 @@ fn cmd_debug (args: &[String]) -> Result <()> {
 fn cmd_play (args: &[String]) -> Result <()> {
 	tracing_subscriber::fmt::init ();
 	
-	let filename = args.get (1)
+	let filenames: Vec <_> = args.iter ()
+	.skip (1)
 	.map (|s| s.to_string ())
-	.unwrap_or_else (|| "test-short.m4a".to_string ());
+	.collect ();
 	
 	let pair = Arc::new ((Mutex::new (decoder::SharedState::default ()), Condvar::new ()));
 	let pair2 = Arc::clone (&pair);
@@ -100,29 +101,31 @@ fn cmd_play (args: &[String]) -> Result <()> {
 	let thread_decoder = thread::spawn (move|| {
 		let (lock, cvar) = &*pair2;
 		
-		let mut decoder = decoder::Decoder::new (&filename)?;
+		'many_files: for filename in &filenames {
+			let mut decoder = decoder::Decoder::new (&filename)?;
 			
-		'decoder_thread: loop {
-			// tracing::trace! ("decode thread parking");
+			'one_file: loop {
+				// tracing::trace! ("decode thread parking");
 				
-			let mut decoder_state = cvar.wait_while (lock.lock ().unwrap (), |decoder_state| {
-				decoder_state.pcm_buffers.samples_available () >= 12_000 &&
-				! decoder_state.quit
-			}).unwrap ();
+				let mut decoder_state = cvar.wait_while (lock.lock ().unwrap (), |decoder_state| {
+					decoder_state.pcm_buffers.samples_available () >= 48_000 &&
+					! decoder_state.quit
+				}).unwrap ();
 				
-			if decoder_state.quit {
-				break 'decoder_thread;
-			}
+				if decoder_state.quit {
+					break 'many_files;
+				}
 				
-			//dbg! (resampler.delay ());
+				//dbg! (resampler.delay ());
 				
-			let pcm_buffers = &mut decoder_state.pcm_buffers;
+				let pcm_buffers = &mut decoder_state.pcm_buffers;
 				
-			while pcm_buffers.samples_available () < 24_000 {
-				// tracing::trace! ("Decoder is trying to work...");
-				if ! decoder.fill_buffer (pcm_buffers)? {
-					tracing::info! ("Decoder thread is out of work, quitting");
-					break 'decoder_thread;
+				while pcm_buffers.samples_available () < 96_000 {
+					// tracing::trace! ("Decoder is trying to work...");
+					if ! decoder.fill_buffer (pcm_buffers)? {
+						tracing::info! ("Finished decoding file");
+						break 'one_file;
+					}
 				}
 			}
 		}
@@ -157,7 +160,7 @@ fn cmd_play (args: &[String]) -> Result <()> {
 			let pcm_buffers = &mut decoder_state.pcm_buffers;
 			
 			if ! pcm_buffers.consume_exact (data) {
-				// tracing::warn! ("PCM buffer underflow");
+				tracing::warn! ("PCM buffer underflow");
 				
 				for x in data {
 					*x = 0.0;

todo.md

@@ -0,0 +1,3 @@
+# Critical
+
+- Popping every 1-3 seconds-ish