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pcm_format: use the pcm_buffer library

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Replace a "static" buffer with the PCM buffer library.
This commit is contained in:
Max Kellermann
2009-01-07 23:56:34 +01:00
parent 954c2b5a25
commit 5fe7e3bc14
4 changed files with 38 additions and 40 deletions
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57
src/pcm_format.c
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@@ -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);
}
*dest_size_r = num_samples * sizeof(*dest);
dest = pcm_buffer_get(buffer, *dest_size_r);
pcm_convert_24_to_16(dither,
(int16_t *)buf,
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;