pcm/Format: change parameters/return values to ConstBuffer

1 files changed, 13 insertions, 18 deletions

diff --git a/src/pcm/PcmFormat.hxx b/src/pcm/PcmFormat.hxx
index cc44d6dd5..378ac8e2a 100644
--- a/src/pcm/PcmFormat.hxx
+++ b/src/pcm/PcmFormat.hxx
@@ -25,6 +25,7 @@
 #include <stdint.h>
 #include <stddef.h>
 
+template<typename T> struct ConstBuffer;
 class PcmBuffer;
 class PcmDither;
 
@@ -36,14 +37,12 @@ class PcmDither;
  * @param dither a pcm_dither object for 24-to-16 conversion
  * @param bits the number of in the source buffer
  * @param src the source PCM buffer
- * @param src_size the size of #src in bytes
- * @param dest_size_r returns the number of bytes of the destination buffer
  * @return the destination buffer
  */
-const int16_t *
+gcc_pure
+ConstBuffer<int16_t>
 pcm_convert_to_16(PcmBuffer &buffer, PcmDither &dither,
-		  SampleFormat src_format, const void *src,
-		  size_t src_size, size_t *dest_size_r);
+		  SampleFormat src_format, ConstBuffer<void> src);
 
 /**
  * Converts PCM samples to 24 bit (32 bit alignment).
@@ -51,14 +50,12 @@ pcm_convert_to_16(PcmBuffer &buffer, PcmDither &dither,
  * @param buffer a PcmBuffer object
  * @param bits the number of in the source buffer
  * @param src the source PCM buffer
- * @param src_size the size of #src in bytes
- * @param dest_size_r returns the number of bytes of the destination buffer
  * @return the destination buffer
  */
-const int32_t *
+gcc_pure
+ConstBuffer<int32_t>
 pcm_convert_to_24(PcmBuffer &buffer,
-		  SampleFormat src_format, const void *src,
-		  size_t src_size, size_t *dest_size_r);
+		  SampleFormat src_format, ConstBuffer<void> src);
 
 /**
  * Converts PCM samples to 32 bit.
@@ -66,14 +63,12 @@ pcm_convert_to_24(PcmBuffer &buffer,
  * @param buffer a PcmBuffer object
  * @param bits the number of in the source buffer
  * @param src the source PCM buffer
- * @param src_size the size of #src in bytes
- * @param dest_size_r returns the number of bytes of the destination buffer
  * @return the destination buffer
  */
-const int32_t *
+gcc_pure
+ConstBuffer<int32_t>
 pcm_convert_to_32(PcmBuffer &buffer,
-		  SampleFormat src_format, const void *src,
-		  size_t src_size, size_t *dest_size_r);
+		  SampleFormat src_format, ConstBuffer<void> src);
 
 /**
  * Converts PCM samples to 32 bit floating point.
@@ -85,9 +80,9 @@ pcm_convert_to_32(PcmBuffer &buffer,
  * @param dest_size_r returns the number of bytes of the destination buffer
  * @return the destination buffer
  */
-const float *
+gcc_pure
+ConstBuffer<float>
 pcm_convert_to_float(PcmBuffer &buffer,
-		     SampleFormat src_format, const void *src,
-		     size_t src_size, size_t *dest_size_r);
+		     SampleFormat src_format, ConstBuffer<void> src);
 
 #endif