From: Hraban Luyat <hraban@0brg.net>
Date: Sun, 5 Jul 2015 20:07:29 +0000 (+0100)
Subject: float routines for stream reader
X-Git-Tag: v2.0.0~95
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=6b3d9bb2da863c5a52693d0f8807a7655541f65d;p=go-opus.git

float routines for stream reader
---

diff --git a/stream.go b/stream.go
index de8dbae..07a5743 100644
--- a/stream.go
+++ b/stream.go
@@ -105,6 +105,27 @@ func (s *Stream) Read(pcm []int16) (int, error) {
 	return int(n), nil
 }
 
+func (s *Stream) ReadFloat32(pcm []float32) (int, error) {
+	if s.oggfile == nil {
+		return 0, fmt.Errorf("opus stream is uninitialized or already closed")
+	}
+	if len(pcm) == 0 {
+		return 0, nil
+	}
+	n := C.op_read_float(
+		s.oggfile,
+		(*C.float)(&pcm[0]),
+		C.int(len(pcm)),
+		nil)
+	if n < 0 {
+		return 0, opusfileerr(n)
+	}
+	if n == 0 {
+		return 0, io.EOF
+	}
+	return int(n), nil
+}
+
 func (s *Stream) Close() error {
 	if s.oggfile == nil {
 		return fmt.Errorf("opus stream is uninitialized or already closed")