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test: latency - use snd_pcm_format_physical_width()

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We need to allocate frames using the physical size not
the sample bit size.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2022-11-14 12:36:04 +01:00
parent 152983f01b
commit 78b20e3caa
2 changed files with 9 additions and 4 deletions
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7
src/topology/ctl.c
View file

@ -17,9 +17,13 @@
Liam Girdwood <liam.r.girdwood@linux.intel.com> Liam Girdwood <liam.r.girdwood@linux.intel.com>
*/ */
#define ALSA_PCM_OLD_HW_PARAMS_API 1
#define ALSA_PCM_OLD_SW_PARAMS_API 1
#include "../../include/asoundlib.h"
#include "list.h" #include "list.h"
#include "tplg_local.h" #include "tplg_local.h"
#define ENUM_VAL_SIZE (SNDRV_CTL_ELEM_ID_NAME_MAXLEN >> 2) #define ENUM_VAL_SIZE (SNDRV_CTL_ELEM_ID_NAME_MAXLEN >> 2)
struct ctl_access_elem { struct ctl_access_elem {
@ -71,7 +75,8 @@ static int parse_access_values(snd_config_t *cfg,
} }
} }
} }
return snd_pcm_hw_params_get_channels(NULL);
//return snd_pcm_hw_params_get_access(NULL);
return 0; return 0;
} }

6
test/latency.c
View file

@ -354,7 +354,7 @@ long readbuf(snd_pcm_t *handle, char *buf, long len, size_t *frames, size_t *max
} }
// printf("read = %li\n", r); // printf("read = %li\n", r);
} else { } else {
int frame_bytes = (snd_pcm_format_width(format) / 8) * channels; int frame_bytes = (snd_pcm_format_physical_width(format) / 8) * channels;
do { do {
r = snd_pcm_readi(handle, buf, len); r = snd_pcm_readi(handle, buf, len);
if (r > 0) { if (r > 0) {
@ -374,7 +374,7 @@ long readbuf(snd_pcm_t *handle, char *buf, long len, size_t *frames, size_t *max
long writebuf(snd_pcm_t *handle, char *buf, long len, size_t *frames) long writebuf(snd_pcm_t *handle, char *buf, long len, size_t *frames)
{ {
long r; long r;
int frame_bytes = (snd_pcm_format_width(format) / 8) * channels; int frame_bytes = (snd_pcm_format_physical_width(format) / 8) * channels;
while (len > 0) { while (len > 0) {
r = snd_pcm_writei(handle, buf, len); r = snd_pcm_writei(handle, buf, len);
@ -579,7 +579,7 @@ int main(int argc, char *argv[])
loop_limit = loop_sec * rate; loop_limit = loop_sec * rate;
latency = latency_min - 4; latency = latency_min - 4;
buffer = malloc((latency_max * snd_pcm_format_width(format) / 8) * 2); buffer = malloc((latency_max * snd_pcm_format_physical_width(format) / 8) * 2);
setscheduler(); setscheduler();