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-rw-r--r--src/pcm_resample.h33
1 files changed, 28 insertions, 5 deletions
diff --git a/src/pcm_resample.h b/src/pcm_resample.h
index 24d17ff9b..24fa1d044 100644
--- a/src/pcm_resample.h
+++ b/src/pcm_resample.h
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
@@ -45,7 +45,7 @@ struct pcm_resample_state {
struct {
unsigned src_rate;
unsigned dest_rate;
- uint8_t channels;
+ unsigned channels;
} prev;
int error;
@@ -54,6 +54,9 @@ struct pcm_resample_state {
struct pcm_buffer buffer;
};
+bool
+pcm_resample_global_init(GError **error_r);
+
/**
* Initializes a pcm_resample_state object.
*/
@@ -66,6 +69,26 @@ void pcm_resample_init(struct pcm_resample_state *state);
void pcm_resample_deinit(struct pcm_resample_state *state);
/**
+ * Resamples 32 bit float data.
+ *
+ * @param state an initialized pcm_resample_state object
+ * @param channels the number of channels
+ * @param src_rate the source sample rate
+ * @param src the source PCM buffer
+ * @param src_size the size of #src in bytes
+ * @param dest_rate the requested destination sample rate
+ * @param dest_size_r returns the number of bytes of the destination buffer
+ * @return the destination buffer
+ */
+const float *
+pcm_resample_float(struct pcm_resample_state *state,
+ unsigned channels,
+ unsigned src_rate,
+ const float *src_buffer, size_t src_size,
+ unsigned dest_rate, size_t *dest_size_r,
+ GError **error_r);
+
+/**
* Resamples 16 bit PCM data.
*
* @param state an initialized pcm_resample_state object
@@ -79,7 +102,7 @@ void pcm_resample_deinit(struct pcm_resample_state *state);
*/
const int16_t *
pcm_resample_16(struct pcm_resample_state *state,
- uint8_t channels,
+ unsigned channels,
unsigned src_rate,
const int16_t *src_buffer, size_t src_size,
unsigned dest_rate, size_t *dest_size_r,
@@ -99,7 +122,7 @@ pcm_resample_16(struct pcm_resample_state *state,
*/
const int32_t *
pcm_resample_32(struct pcm_resample_state *state,
- uint8_t channels,
+ unsigned channels,
unsigned src_rate,
const int32_t *src_buffer, size_t src_size,
unsigned dest_rate, size_t *dest_size_r,
@@ -119,7 +142,7 @@ pcm_resample_32(struct pcm_resample_state *state,
*/
static inline const int32_t *
pcm_resample_24(struct pcm_resample_state *state,
- uint8_t channels,
+ unsigned channels,
unsigned src_rate,
const int32_t *src_buffer, size_t src_size,
unsigned dest_rate, size_t *dest_size_r,