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test: pcm_min - add snd_pcm_drain() call and indentation fixes

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Fixes: https://github.com/alsa-project/alsa-lib/issues/46
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2020-05-03 20:07:29 +02:00
parent 29041c5220
commit 21e2fc3857
1 changed files with 26 additions and 24 deletions
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50
test/pcm_min.c
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@ -5,47 +5,49 @@
#include "../include/asoundlib.h" #include "../include/asoundlib.h"
static char *device = "default"; /* playback device */ static char *device = "default"; /* playback device */
snd_output_t *output = NULL;
unsigned char buffer[16*1024]; /* some random data */ unsigned char buffer[16*1024]; /* some random data */
int main(void) int main(void)
{ {
int err; int err;
unsigned int i; unsigned int i;
snd_pcm_t *handle; snd_pcm_t *handle;
snd_pcm_sframes_t frames; snd_pcm_sframes_t frames;
for (i = 0; i < sizeof(buffer); i++) for (i = 0; i < sizeof(buffer); i++)
buffer[i] = random() & 0xff; buffer[i] = random() & 0xff;
if ((err = snd_pcm_open(&handle, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) { if ((err = snd_pcm_open(&handle, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
printf("Playback open error: %s\n", snd_strerror(err)); printf("Playback open error: %s\n", snd_strerror(err));
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
if ((err = snd_pcm_set_params(handle, if ((err = snd_pcm_set_params(handle,
SND_PCM_FORMAT_U8, SND_PCM_FORMAT_U8,
SND_PCM_ACCESS_RW_INTERLEAVED, SND_PCM_ACCESS_RW_INTERLEAVED,
1, 1,
48000, 48000,
1, 1,
500000)) < 0) { /* 0.5sec */ 500000)) < 0) { /* 0.5sec */
printf("Playback open error: %s\n", snd_strerror(err)); printf("Playback open error: %s\n", snd_strerror(err));
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
for (i = 0; i < 16; i++) { for (i = 0; i < 16; i++) {
frames = snd_pcm_writei(handle, buffer, sizeof(buffer)); frames = snd_pcm_writei(handle, buffer, sizeof(buffer));
if (frames < 0) if (frames < 0)
frames = snd_pcm_recover(handle, frames, 0); frames = snd_pcm_recover(handle, frames, 0);
if (frames < 0) { if (frames < 0) {
printf("snd_pcm_writei failed: %s\n", snd_strerror(frames)); printf("snd_pcm_writei failed: %s\n", snd_strerror(frames));
break; break;
} }
if (frames > 0 && frames < (long)sizeof(buffer)) if (frames > 0 && frames < (long)sizeof(buffer))
printf("Short write (expected %li, wrote %li)\n", (long)sizeof(buffer), frames); printf("Short write (expected %li, wrote %li)\n", (long)sizeof(buffer), frames);
} }
/* pass the remaining samples, otherwise they're dropped in close */
err = snd_pcm_drain(handle);
if (err < 0)
printf("snd_pcm_drain failed: %s\n", snd_strerror(err));
snd_pcm_close(handle); snd_pcm_close(handle);
return 0; return 0;
} }