pcm_buffer: convert to C++

src/decoder/FlacCommon.cxx

@@ -39,13 +39,10 @@ flac_data::flac_data(struct decoder *_decoder,
 	 decoder(_decoder), input_stream(_input_stream),
 	 tag(nullptr)
 {
-	pcm_buffer_init(&buffer);
 }
 
 flac_data::~flac_data()
 {
-	pcm_buffer_deinit(&buffer);
-
 	if (tag != nullptr)
 		tag_free(tag);
 }
@@ -178,7 +175,7 @@ flac_common_write(struct flac_data *data, const FLAC__Frame * frame,
 		return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
 
 	size_t buffer_size = frame->header.blocksize * data->frame_size;
-	buffer = pcm_buffer_get(&data->buffer, buffer_size);
+	buffer = data->buffer.Get(buffer_size);
 
 	flac_convert(buffer, frame->header.channels,
 		     (enum sample_format)data->audio_format.format, buf,

src/decoder/FlacCommon.hxx

@@ -26,10 +26,7 @@
 
 #include "FlacInput.hxx"
 #include "DecoderAPI.hxx"
-
-extern "C" {
-#include "pcm/pcm_buffer.h"
-}
+#include "pcm/PcmBuffer.hxx"
 
 #include <FLAC/stream_decoder.h>
 #include <FLAC/metadata.h>
@@ -38,7 +35,7 @@ extern "C" {
 #define G_LOG_DOMAIN "flac"
 
 struct flac_data : public FlacInput {
-	struct pcm_buffer buffer;
+	PcmBuffer buffer;
 
 	/**
 	 * The size of one frame in the output buffer.