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authorMax Kellermann <max@duempel.org>2009-01-07 23:56:34 +0100
committerMax Kellermann <max@duempel.org>2009-01-07 23:56:34 +0100
commit5fe7e3bc1465a1a5f618b50f87aa0266d22ec75e (patch)
tree89fdb2c5abc33581b4b5cee4e7cb9e9e548e8276 /src/pcm_format.c
parent954c2b5a2518e3e5c2a87595c18320de2cac14d6 (diff)
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pcm_format: use the pcm_buffer library
Replace a "static" buffer with the PCM buffer library.
Diffstat (limited to 'src/pcm_format.c')
-rw-r--r--src/pcm_format.c59
1 files changed, 23 insertions, 36 deletions
diff --git a/src/pcm_format.c b/src/pcm_format.c
index 16d9673d4..0e0b2dfce 100644
--- a/src/pcm_format.c
+++ b/src/pcm_format.c
@@ -18,6 +18,7 @@
#include "pcm_format.h"
#include "pcm_dither.h"
+#include "pcm_buffer.h"
#include <glib.h>
@@ -40,27 +41,23 @@ pcm_convert_24_to_16(struct pcm_dither_24 *dither,
}
const int16_t *
-pcm_convert_to_16(struct pcm_dither_24 *dither,
+pcm_convert_to_16(struct pcm_buffer *buffer, struct pcm_dither_24 *dither,
uint8_t bits, const void *src,
size_t src_size, size_t *dest_size_r)
{
- static int16_t *buf;
- static size_t len;
unsigned num_samples;
+ int16_t *dest;
switch (bits) {
case 8:
num_samples = src_size;
- *dest_size_r = src_size << 1;
- if (*dest_size_r > len) {
- len = *dest_size_r;
- buf = g_realloc(buf, len);
- }
+ *dest_size_r = src_size * sizeof(*dest);
+ dest = pcm_buffer_get(buffer, *dest_size_r);
- pcm_convert_8_to_16((int16_t *)buf,
+ pcm_convert_8_to_16(dest,
(const int8_t *)src,
num_samples);
- return buf;
+ return dest;
case 16:
*dest_size_r = src_size;
@@ -68,17 +65,13 @@ pcm_convert_to_16(struct pcm_dither_24 *dither,
case 24:
num_samples = src_size / 4;
- *dest_size_r = num_samples * 2;
- if (*dest_size_r > len) {
- len = *dest_size_r;
- buf = g_realloc(buf, len);
- }
-
- pcm_convert_24_to_16(dither,
- (int16_t *)buf,
+ *dest_size_r = num_samples * sizeof(*dest);
+ dest = pcm_buffer_get(buffer, *dest_size_r);
+
+ pcm_convert_24_to_16(dither, dest,
(const int32_t *)src,
num_samples);
- return buf;
+ return dest;
}
g_warning("only 8 or 16 bits are supported for conversion!\n");
@@ -106,37 +99,31 @@ pcm_convert_16_to_24(int32_t *out, const int16_t *in,
}
const int32_t *
-pcm_convert_to_24(uint8_t bits, const void *src,
+pcm_convert_to_24(struct pcm_buffer *buffer,
+ uint8_t bits, const void *src,
size_t src_size, size_t *dest_size_r)
{
- static int32_t *buf;
- static size_t len;
unsigned num_samples;
+ int32_t *dest;
switch (bits) {
case 8:
num_samples = src_size;
- *dest_size_r = src_size * 4;
- if (*dest_size_r > len) {
- len = *dest_size_r;
- buf = g_realloc(buf, len);
- }
+ *dest_size_r = src_size * sizeof(*dest);
+ dest = pcm_buffer_get(buffer, *dest_size_r);
- pcm_convert_8_to_24(buf, (const int8_t *)src,
+ pcm_convert_8_to_24(dest, (const int8_t *)src,
num_samples);
- return buf;
+ return dest;
case 16:
num_samples = src_size / 2;
- *dest_size_r = num_samples * 4;
- if (*dest_size_r > len) {
- len = *dest_size_r;
- buf = g_realloc(buf, len);
- }
+ *dest_size_r = num_samples * sizeof(*dest);
+ dest = pcm_buffer_get(buffer, *dest_size_r);
- pcm_convert_16_to_24(buf, (const int16_t *)src,
+ pcm_convert_16_to_24(dest, (const int16_t *)src,
num_samples);
- return buf;
+ return dest;
case 24:
*dest_size_r = src_size;