changeset 21:6c5d2fe1b260

Some fixes to file opening & playback

--- a/playback.yeti	Thu Dec 20 11:58:48 2012 +0000
+++ b/playback.yeti	Thu Dec 20 12:12:11 2012 +0000
@@ -11,19 +11,7 @@
 
 import java.nio: ByteBuffer, ByteOrder;
 
-open { rate, channels } = 
-   (format = new AudioFormat(AudioFormat$Encoding#PCM_SIGNED, rate, 16,
-                             channels, channels * 2, rate, false);
-    line = AudioSystem#getSourceDataLine(format);
-    line#open(format);
-    line#start();
-    {
-        line,
-        channels = line#getFormat()#getChannels(),
-        close () = line#close(),
-    });
-
-playBlock { line is ~SourceDataLine } b =
+playBlock line b is ~SourceDataLine -> 'a -> () =
    (len = block.length b;
     samples = block.unblock b;
     nb = len * 2;
@@ -38,10 +26,23 @@
 
 play line blocks = for blocks (playBlock line);
     
+open { rate, channels } = 
+   (format = new AudioFormat(AudioFormat$Encoding#PCM_SIGNED, rate, 16,
+                             channels, channels * 2, rate, false);
+    line = AudioSystem#getSourceDataLine(format);
+    line#open(format);
+    line#start();
+    {
+        line,
+        play = play line,
+        channels = line#getFormat()#getChannels(),
+        close () = (line#drain(); line#close()),
+    });
+
 playStream stream =
    (line = open { rate = stream.sampleRate, channels = stream.channels };
     blocksize = 10240;
-    play line (map (ch.mixedFromInterleavedTo line.channels stream.channels)
+    line.play (map (ch.mixedFromInterleavedTo line.channels stream.channels)
                    (fr.frames blocksize stream));
     line.close());
 

--- a/stream.yeti	Thu Dec 20 11:58:48 2012 +0000
+++ b/stream.yeti	Thu Dec 20 12:12:11 2012 +0000
@@ -2,7 +2,7 @@
 module stream;
 
 monoStream box =
-   (readAll box = box.read (box.len - box.position);
+   (readAll' box = box.read (box.len - box.position);
     {
         get position () = box.position,
         get channels () = 1,
@@ -12,15 +12,14 @@
         read = box.read,
         readInterleaved = box.read,
         readMono = box.read,
-        readAll = readAll box,
-        readAllInterleaved = readAll box,
-        readAllMono = readAll box,
+        readAll () = readAll' box,
+        readAllInterleaved () = readAll' box,
+        readAllMono () = readAll' box,
         close = box.close,
     });
 
 stream box = 
-   (readAll box = box.read (box.len - box.position);
-    {
+   ({
         get position () = box.position,
         get channels () = box.channels,
         get sampleRate () = box.rate,
@@ -29,9 +28,9 @@
         read = box.read,
         readInterleaved = box.readInterleaved,
         readMono = box.readMono,
-        readAll = box.read (box.len - box.position),
-        readAllInterleaved = box.readInterleaved (box.len - box.position),
-        readAllMono = box.readMono (box.len - box.position),
+        readAll () = box.read (box.len - box.position),
+        readAllInterleaved () = box.readInterleaved (box.len - box.position),
+        readAllMono () = box.readMono (box.len - box.position),
         close = box.close,
     });