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#include "config_unix.h"
#include "config_win32.h"
#include "audio_types.h"
#include "audio_fmt.h"
#define SAMPLES_PER_BLOCK 16
/* Memory debugging. To check conversion routines do not overstep bounds */
/* Could have used common library routines, but they depend on being built */
/* with -DDEBUG_MEM */
/* Magic alloc -> | size | Magic No | Memory ....| Magic no. | */
#define OUR_MAGIC_NO 0xdeadbeef
static int magic_check(void *);
static void*
magic_alloc(size_t size)
{
uint32_t *m, *s;
void *blk;
uint8_t *t;
s = (uint32_t*)malloc(size * 3 * sizeof(uint32_t));
*s = size;
m = s + 1;
*m = OUR_MAGIC_NO;
t = ((uint8_t*)s) + 2 * sizeof(uint32_t) + size;
memcpy(t, m, sizeof(uint32_t));
blk = (void*)s;
blk += 2 * sizeof(uint32_t);
memset(blk, 0, size);
assert(magic_check(blk));
return blk;
}
static int
magic_check(void *blk)
{
uint8_t *t;
uint32_t *m, *s;
s = ((uint32_t*)blk) - 2;
m = s + 1;
if (*m != OUR_MAGIC_NO) {
return FALSE;
}
t = ((uint8_t*)s) + 2 * sizeof(uint32_t) + *s;
return !memcmp(m, t, sizeof(uint32_t));
}
static void
magic_free(void *blk)
{
uint32_t *s = (uint32_t*)(blk - 2 * sizeof(uint32_t));
free(s);
}
static int
test_sample_conversion(audio_format *fmtin, audio_format *fmtout)
{
uint8_t *bufin, *bufout;
int success;
bufin = (uint8_t*)magic_alloc(fmtin->bytes_per_block);
bufout = (uint8_t*)magic_alloc(fmtout->bytes_per_block);
success = magic_check(bufin) & magic_check(bufout);
if (success == 0) {
printf("Test is wrong\n");
return FALSE;
}
audio_format_buffer_convert(fmtin, bufin, fmtin->bytes_per_block,
fmtout, bufout, fmtout->bytes_per_block);
success = 0;
if (magic_check(bufin) == 0) {
printf("Input buffer corrupted.\n");
} else if (magic_check(bufout) == 0) {
printf("Output buffer corrupted.\n");
} else {
success = TRUE;
}
magic_free(bufin);
magic_free(bufout);
return success;
}
static int
test_sample_conversions(void)
{
const deve_e encodings[] = {
DEV_PCMU, DEV_PCMA, DEV_S8, DEV_U8, DEV_S16
};
const int encoding_width[] = {
8, 8, 8, 8, 16,
};
char fmtname[64];
int ein, eout, msin, msout;
int num_encodings = sizeof(encodings)/sizeof(encodings[0]);
audio_format fmtin, fmtout;
for(msin = 1; msin <= 2; msin++) {
for(ein = 0; ein < num_encodings; ein++) {
fmtin.encoding = encodings[ein];
fmtin.sample_rate = 8000;
fmtin.bits_per_sample = encoding_width[ein];
fmtin.channels = msin;
fmtin.bytes_per_block = SAMPLES_PER_BLOCK * fmtin.channels * fmtin.bits_per_sample / 8;
audio_format_name(&fmtin, fmtname, sizeof(fmtname));
printf("\n\tFrom: %s to:", fmtname);
for(msout = 1; msout <= 2; msout++) {
for(eout = 0; eout < num_encodings; eout++) {
fmtout.encoding = encodings[eout];
fmtout.sample_rate = 8000;
fmtout.bits_per_sample = encoding_width[eout];
fmtout.channels = msout;
fmtout.bytes_per_block = SAMPLES_PER_BLOCK * fmtout.channels * fmtout.bits_per_sample / 8;
audio_format_name(&fmtout, fmtname, sizeof(fmtname));
printf("\n\t\t%s", fmtname);
if (test_sample_conversion(&fmtin, &fmtout) == FALSE) {
printf("....failed.");
}
printf("....passed");
}
}
}
}
return TRUE;
}
int main()
{
printf("Testing sample type conversions");
if (test_sample_conversions() == FALSE) {
printf("failed\n");
}
return 0;
}
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