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Describe if audio device exists, but does not support both directions

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This commit is contained in:
Andreas Eversberg
2019-10-27 07:03:23 +01:00
parent 2fde5025af
commit 23bb88ef6e
2 changed files with 14 additions and 9 deletions
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21
src/libsound/sound_alsa.c
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@@ -134,7 +134,7 @@ static int sound_prepare(sound_t *sound)
void *sound_open(const char *audiodev, double __attribute__((unused)) *tx_frequency, double __attribute__((unused)) *rx_frequency, int channels, double __attribute__((unused)) paging_frequency, int samplerate, int __attribute((unused)) latspl, double max_deviation, double __attribute__((unused)) max_modulation)
{
sound_t *sound;
int rc;
int rc, rc_rec, rc_play;
if (channels < 1 || channels > 2) {
PDEBUG(DSOUND, DEBUG_ERROR, "Cannot use more than two channels with the same sound card!\n");
@@ -150,15 +150,20 @@ void *sound_open(const char *audiodev, double __attribute__((unused)) *tx_freque
sound->spl_deviation = max_deviation / 32767.0;
sound->paging_phaseshift = 1.0 / ((double)samplerate / 1000.0);
rc = snd_pcm_open(&sound->phandle, audiodev, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
if (rc < 0) {
PDEBUG(DSOUND, DEBUG_ERROR, "Failed to open '%s' for playback! (%s)\n", audiodev, snd_strerror(rc));
rc_play = snd_pcm_open(&sound->phandle, audiodev, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
rc_rec = snd_pcm_open(&sound->chandle, audiodev, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK);
if (rc_play < 0 && rc_rec < 0) {
PDEBUG(DSOUND, DEBUG_ERROR, "Failed to open '%s'! (%s)\n", audiodev, snd_strerror(rc_play));
PDEBUG(DSOUND, DEBUG_ERROR, "Run 'aplay -l' to get a list of available cards and devices.\n");
PDEBUG(DSOUND, DEBUG_ERROR, "Then use 'hw:<card>:<device>' for audio device.\n");
goto error;
}
rc = snd_pcm_open(&sound->chandle, audiodev, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK);
if (rc < 0) {
PDEBUG(DSOUND, DEBUG_ERROR, "Failed to open '%s' for capture! (%s)\n", audiodev, snd_strerror(rc));
if (rc_play < 0) {
PDEBUG(DSOUND, DEBUG_ERROR, "Failed to open '%s' for playback! (%s) Please select a device that supports both direction audio.\n", audiodev, snd_strerror(rc_play));
goto error;
}
if (rc_rec < 0) {
PDEBUG(DSOUND, DEBUG_ERROR, "Failed to open '%s' for capture! (%s) Please select a device that supports both direction audio.\n", audiodev, snd_strerror(rc_rec));
goto error;
}