Merge pull request #22 from pipelined/compatibility

Compatibility

Author: dudk

example_interate_test.go

@@ -9,20 +9,24 @@ import (
 // This example demonstrates how to iterate over the buffer.
 func Example_iterate() {
 	// allocate int64 buffer with 2 channels and capacity of 8 samples per channel
-	buf := signal.Allocator{Channels: 2, Capacity: 8}.Int64(signal.BitDepth64)
+	buf := signal.Allocator{
+		Channels: 2,
+		Capacity: 8,
+		Length:   4,
+	}.Int64(signal.BitDepth64)
 
 	// write striped data
-	buf = signal.WriteStripedInt8([][]int8{{1, 1, 1, 1}, {2, 2, 2, 2}}, buf)
+	signal.WriteStripedInt8([][]int8{{1, 1, 1, 1}, {2, 2, 2, 2}}, buf)
 
 	// iterate over buffer interleaved data
-	for pos := 0; pos < buf.Len(); pos++ {
-		fmt.Printf("%d", buf.Sample(pos))
+	for i := 0; i < buf.Len(); i++ {
+		fmt.Printf("%d", buf.Sample(i))
 	}
 
-	for channel := 0; channel < buf.Channels(); channel++ {
+	for c := 0; c < buf.Channels(); c++ {
 		fmt.Println()
-		for pos := 0; pos < buf.Length(); pos++ {
-			fmt.Printf("%d", buf.Sample(buf.ChannelPos(channel, pos)))
+		for i := 0; i < buf.Length(); i++ {
+			fmt.Printf("%d", buf.Sample(signal.BufferIndex(buf.Channels(), c, i)))
 		}
 	}
 

example_read_write_test.go

@@ -11,12 +11,16 @@ func Example_readWrite() {
 	var output []int
 
 	// allocate int64 buffer with 2 channels and capacity of 8 samples per channel
-	buf := signal.Allocator{Channels: 2, Capacity: 8}.Int64(signal.BitDepth64)
+	buf := signal.Allocator{
+		Channels: 2,
+		Capacity: 8,
+		Length:   8,
+	}.Int64(signal.BitDepth64)
 
 	// write striped data
-	buf = signal.WriteStripedInt8([][]int8{{1, 1, 1, 1}, {2, 2, 2, 2}}, buf)
+	signal.WriteStripedInt8([][]int8{{1, 1, 1, 1}, {2, 2, 2, 2}}, buf.Slice(0, 4))
 	// write interleaved data
-	buf = signal.WriteInt16([]int16{11, 22, 11, 22, 11, 22, 11, 22}, buf)
+	signal.WriteInt16([]int16{11, 22, 11, 22, 11, 22, 11, 22}, buf.Slice(4, 8))
 
 	output = make([]int, 16)    // reset output
 	signal.ReadInt(buf, output) // read data into output