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Open sound device for capture or playback only, if full duplex is not required

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This commit is contained in:
Andreas Eversberg
2024-03-15 16:30:04 +01:00
parent ce58b765f5
commit b613123291
17 changed files with 125 additions and 81 deletions
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58
src/dcf77/main.c
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@@ -413,13 +413,19 @@ static int get_char()
int soundif_open(const char *audiodev, int samplerate, int buffer_size)
{
enum sound_direction direction = SOUND_DIR_DUPLEX;
if (!audiodev || !audiodev[0]) {
LOGP(DDSP, LOGL_ERROR, "No audio device given!\n");
return -EINVAL;
}
/* open audiodev */
soundif = sound_open(audiodev, NULL, NULL, NULL, (double_amplitude) ? 2 : 1, 0.0, samplerate, buffer_size, 1.0, 1.0, 0.0, 2.0);
if (tx && !rx)
direction = SOUND_DIR_PLAY;
if (rx && !tx)
direction = SOUND_DIR_REC;
soundif = sound_open(direction, audiodev, NULL, NULL, NULL, (double_amplitude) ? 2 : 1, 0.0, samplerate, buffer_size, 1.0, 1.0, 0.0, 2.0);
if (!soundif) {
LOGP(DDSP, LOGL_ERROR, "Failed to open sound device!\n");
return -EIO;
@@ -451,34 +457,38 @@ void soundif_work(int buffer_size)
int rc;
int i;
/* encode and write */
count = sound_get_tosend(soundif, buffer_size);
if (count < 0) {
LOGP(DDSP, LOGL_ERROR, "Failed to get number of samples in buffer (rc = %d)!\n", count);
return;
}
if (count) {
dcf77_encode(dcf77, samples[0], count);
if (double_amplitude) {
for (i = 0; i < count; i++)
samples[1][i] = -samples[0][i];
}
rc = sound_write(soundif, samples, NULL, count, NULL, NULL, (double_amplitude) ? 2 : 1);
if (rc < 0) {
LOGP(DDSP, LOGL_ERROR, "Failed to write TX data to audio device (rc = %d)\n", rc);
if (tx) {
/* encode and write */
count = sound_get_tosend(soundif, buffer_size);
if (count < 0) {
LOGP(DDSP, LOGL_ERROR, "Failed to get number of samples in buffer (rc = %d)!\n", count);
return;
}
if (count) {
dcf77_encode(dcf77, samples[0], count);
if (double_amplitude) {
for (i = 0; i < count; i++)
samples[1][i] = -samples[0][i];
}
rc = sound_write(soundif, samples, NULL, count, NULL, NULL, (double_amplitude) ? 2 : 1);
if (rc < 0) {
LOGP(DDSP, LOGL_ERROR, "Failed to write TX data to audio device (rc = %d)\n", rc);
return;
}
}
}
/* read */
count = sound_read(soundif, samples, buffer_size, 1, rf_level_db);
if (count < 0) {
LOGP(DDSP, LOGL_ERROR, "Failed to read from audio device (rc = %d)!\n", count);
return;
}
if (rx) {
/* read */
count = sound_read(soundif, samples, buffer_size, 1, rf_level_db);
if (count < 0) {
LOGP(DDSP, LOGL_ERROR, "Failed to read from audio device (rc = %d)!\n", count);
return;
}
/* decode */
dcf77_decode(dcf77, samples[0], count);
/* decode */
dcf77_decode(dcf77, samples[0], count);
}
}
int main(int argc, char *argv[])