pcm_buffer: convert to C++

src/filter/NormalizeFilterPlugin.cxx

@@ -21,7 +21,7 @@
 #include "FilterPlugin.hxx"
 #include "FilterInternal.hxx"
 #include "FilterRegistry.hxx"
-#include "pcm/pcm_buffer.h"
+#include "pcm/PcmBuffer.hxx"
 #include "audio_format.h"
 #include "AudioCompress/compress.h"
 
@@ -31,7 +31,7 @@
 class NormalizeFilter final : public Filter {
 	struct Compressor *compressor;
 
-	struct pcm_buffer buffer;
+	PcmBuffer buffer;
 
 public:
 	virtual const audio_format *Open(audio_format &af, GError **error_r);
@@ -53,7 +53,6 @@ NormalizeFilter::Open(audio_format &audio_format, gcc_unused GError **error_r)
 	audio_format.format = SAMPLE_FORMAT_S16;
 
 	compressor = Compressor_new(0);
-	pcm_buffer_init(&buffer);
 
 	return &audio_format;
 }
@@ -61,7 +60,7 @@ NormalizeFilter::Open(audio_format &audio_format, gcc_unused GError **error_r)
 void
 NormalizeFilter::Close()
 {
-	pcm_buffer_deinit(&buffer);
+	buffer.Clear();
 	Compressor_delete(compressor);
 }
 
@@ -69,7 +68,7 @@ const void *
 NormalizeFilter::FilterPCM(const void *src, size_t src_size,
 			   size_t *dest_size_r, gcc_unused GError **error_r)
 {
-	int16_t *dest = (int16_t *)pcm_buffer_get(&buffer, src_size);
+	int16_t *dest = (int16_t *)buffer.Get(src_size);
 	memcpy(dest, src, src_size);
 
 	Compressor_Process_int16(compressor, dest, src_size / 2);

src/filter/ReplayGainFilterPlugin.cxx

@@ -27,10 +27,7 @@
 #include "replay_gain_config.h"
 #include "MixerControl.hxx"
 #include "pcm/PcmVolume.hxx"
-
-extern "C" {
-#include "pcm/pcm_buffer.h"
-}
+#include "pcm/PcmBuffer.hxx"
 
 #include <assert.h>
 #include <string.h>
@@ -71,7 +68,7 @@ class ReplayGainFilter final : public Filter {
 
 	struct audio_format format;
 
-	struct pcm_buffer buffer;
+	PcmBuffer buffer;
 
 public:
 	ReplayGainFilter()
@@ -166,7 +163,6 @@ const audio_format *
 ReplayGainFilter::Open(audio_format &af, gcc_unused GError **error_r)
 {
 	format = af;
-	pcm_buffer_init(&buffer);
 
 	return &format;
 }
@@ -174,7 +170,7 @@ ReplayGainFilter::Open(audio_format &af, gcc_unused GError **error_r)
 void
 ReplayGainFilter::Close()
 {
-	pcm_buffer_deinit(&buffer);
+	buffer.Clear();
 }
 
 const void *
@@ -188,7 +184,7 @@ ReplayGainFilter::FilterPCM(const void *src, size_t src_size,
 		/* optimized special case: 100% volume = no-op */
 		return src;
 
-	void *dest = pcm_buffer_get(&buffer, src_size);
+	void *dest = buffer.Get(src_size);
 	if (volume <= 0) {
 		/* optimized special case: 0% volume = memset(0) */
 		/* XXX is this valid for all sample formats? What

src/filter/RouteFilterPlugin.cxx

@@ -47,7 +47,7 @@
 #include "FilterPlugin.hxx"
 #include "FilterInternal.hxx"
 #include "FilterRegistry.hxx"
-#include "pcm/pcm_buffer.h"
+#include "pcm/PcmBuffer.hxx"
 
 #include <assert.h>
 #include <string.h>
@@ -101,7 +101,7 @@ class RouteFilter final : public Filter {
 	/**
 	 * The output buffer used last time around, can be reused if the size doesn't differ.
 	 */
-	struct pcm_buffer output_buffer;
+	PcmBuffer output_buffer;
 
 public:
 	RouteFilter():sources(nullptr) {}
@@ -256,16 +256,13 @@ RouteFilter::Open(audio_format &audio_format, gcc_unused GError **error_r)
 	// Precalculate this simple value, to speed up allocation later
 	output_frame_size = audio_format_frame_size(&output_format);
 
-	// This buffer grows as needed
-	pcm_buffer_init(&output_buffer);
-
 	return &output_format;
 }
 
 void
 RouteFilter::Close()
 {
-	pcm_buffer_deinit(&output_buffer);
+	output_buffer.Clear();
 }
 
 const void *
@@ -285,9 +282,7 @@ RouteFilter::FilterPCM(const void *src, size_t src_size,
 
 	// Grow our reusable buffer, if needed, and set the moving pointer
 	*dest_size_r = number_of_frames * output_frame_size;
-	chan_destination = (uint8_t *)
-		pcm_buffer_get(&output_buffer, *dest_size_r);
-
+	chan_destination = (uint8_t *)output_buffer.Get(*dest_size_r);
 
 	// Perform our copy operations, with N input channels and M output channels
 	for (unsigned int s=0; s<number_of_frames; ++s) {

src/filter/VolumeFilterPlugin.cxx

@@ -23,8 +23,8 @@
 #include "FilterInternal.hxx"
 #include "FilterRegistry.hxx"
 #include "conf.h"
-#include "pcm/pcm_buffer.h"
 #include "pcm/PcmVolume.hxx"
+#include "pcm/PcmBuffer.hxx"
 #include "audio_format.h"
 
 #include <assert.h>
@@ -38,7 +38,7 @@ class VolumeFilter final : public Filter {
 
 	struct audio_format format;
 
-	struct pcm_buffer buffer;
+	PcmBuffer buffer;
 
 public:
 	VolumeFilter()
@@ -79,7 +79,6 @@ const struct audio_format *
 VolumeFilter::Open(audio_format &audio_format, gcc_unused GError **error_r)
 {
 	format = audio_format;
-	pcm_buffer_init(&buffer);
 
 	return &format;
 }
@@ -87,7 +86,7 @@ VolumeFilter::Open(audio_format &audio_format, gcc_unused GError **error_r)
 void
 VolumeFilter::Close()
 {
-	pcm_buffer_deinit(&buffer);
+	buffer.Clear();
 }
 
 const void *
@@ -100,7 +99,7 @@ VolumeFilter::FilterPCM(const void *src, size_t src_size,
 		/* optimized special case: 100% volume = no-op */
 		return src;
 
-	void *dest = pcm_buffer_get(&buffer, src_size);
+	void *dest = buffer.Get(src_size);
 
 	if (volume <= 0) {
 		/* optimized special case: 0% volume = memset(0) */