static char *ListAvailableDevices( demux_t *p_demux, bool b_probe )
{
snd_ctl_card_info_t *p_info = NULL;
snd_ctl_card_info_alloca( &p_info );
snd_pcm_info_t *p_pcminfo = NULL;
snd_pcm_info_alloca( &p_pcminfo );
if( !b_probe )
msg_Dbg( p_demux, "Available alsa capture devices:" );
int i_card = -1;
while( !snd_card_next( &i_card ) && i_card >= 0 )
{
char psz_devname[10];
snprintf( psz_devname, 10, "hw:%d", i_card );
snd_ctl_t *p_ctl = NULL;
if( snd_ctl_open( &p_ctl, psz_devname, 0 ) < 0 ) continue;
snd_ctl_card_info( p_ctl, p_info );
if( !b_probe )
msg_Dbg( p_demux, " %s (%s)",
snd_ctl_card_info_get_id( p_info ),
snd_ctl_card_info_get_name( p_info ) );
int i_dev = -1;
while( !snd_ctl_pcm_next_device( p_ctl, &i_dev ) && i_dev >= 0 )
{
snd_pcm_info_set_device( p_pcminfo, i_dev );
snd_pcm_info_set_subdevice( p_pcminfo, 0 );
snd_pcm_info_set_stream( p_pcminfo, SND_PCM_STREAM_CAPTURE );
if( snd_ctl_pcm_info( p_ctl, p_pcminfo ) < 0 ) continue;
if( !b_probe )
msg_Dbg( p_demux, " hw:%d,%d : %s (%s)", i_card, i_dev,
snd_pcm_info_get_id( p_pcminfo ),
snd_pcm_info_get_name( p_pcminfo ) );
else
{
char *psz_device;
if( asprintf( &psz_device, "hw:%d,%d", i_card, i_dev ) > 0 )
{
if( ProbeAudioDevAlsa( p_demux, psz_device ) )
{
snd_ctl_close( p_ctl );
return psz_device;
}
else
free( psz_device );
}
}
}
snd_ctl_close( p_ctl );
}
return NULL;
}
bool MainWindowImpl::FindRadioshark(string& device)
{
int card = -1;
int dev = -1;
snd_ctl_t *handle = NULL;
snd_ctl_card_info_t *info = NULL;
snd_pcm_info_t *pcminfo = NULL;
snd_pcm_stream_t stream = SND_PCM_STREAM_CAPTURE;
char card_id[32];
char *name = NULL;
snd_ctl_card_info_alloca (&info);
snd_pcm_info_alloca (&pcminfo);
if (snd_card_next (&card) < 0 || card < 0)
{
return false;
}
while(card >= 0)
{
snprintf (card_id, 32, "hw:%d", card);
if (snd_ctl_open (&handle, card_id, 0) == 0)
{
snd_ctl_card_info (handle, info);
while (1)
{
snd_ctl_pcm_next_device (handle, &dev);
if (dev < 0){
break;
}
snd_pcm_info_set_device (pcminfo, dev);
snd_pcm_info_set_subdevice (pcminfo, 0);
snd_pcm_info_set_stream (pcminfo, stream);
if (snd_ctl_pcm_info (handle, pcminfo) >= 0)
{
snd_card_get_name (card, &name);
if(strncmp(name,"radioSHARK",32) == 0)
{void PokeScreensaver(void);
snd_ctl_close(handle);
free (name);
snprintf (card_id, 32, "hw:%d,%d", card,dev);
device = string(card_id);
return true;
}
free (name);
}
}
snd_ctl_close(handle);
}
snd_card_next (&card);
}
return false;//didn't find the proper Radioshark card.
}
void list_cards(void)
{
snd_ctl_card_info_t *p_info = NULL;
snd_ctl_card_info_alloca(&p_info);
snd_pcm_info_t *p_pcminfo = NULL;
snd_pcm_info_alloca(&p_pcminfo);
printf("Availible alsa capture devices:\n");
int i_card = -1;
while (!snd_card_next(&i_card) && i_card >= 0)
{
char devname[10];
snprintf( devname, 10, "hw:%d", i_card );
snd_ctl_t *p_ctl = NULL;
if ( snd_ctl_open( &p_ctl, devname, 0 ) < 0) continue;
snd_ctl_card_info( p_ctl, p_info);
printf("\t%s (%s)\n", snd_ctl_card_info_get_id(p_info), snd_ctl_card_info_get_name(p_info));
int i_dev = -1;
while (!snd_ctl_pcm_next_device(p_ctl, &i_dev) && i_dev >= 0)
{
snd_pcm_info_set_device(p_pcminfo, i_dev);
snd_pcm_info_set_subdevice(p_pcminfo, 0);
snd_pcm_info_set_stream(p_pcminfo, SND_PCM_STREAM_CAPTURE);
if (snd_ctl_pcm_info(p_ctl, p_pcminfo) < 0) continue;
printf("\t\thw:%d,%d : %s (%s)\n", i_card, i_dev,
snd_pcm_info_get_id(p_pcminfo),
snd_pcm_info_get_name(p_pcminfo));
}
snd_ctl_close(p_ctl);
}
}
static DevMap *probe_devices(snd_pcm_stream_t stream, ALuint *count)
{
const char *main_prefix = "plughw:";
snd_ctl_t *handle;
int card, err, dev, idx;
snd_ctl_card_info_t *info;
snd_pcm_info_t *pcminfo;
DevMap *DevList;
snd_ctl_card_info_malloc(&info);
snd_pcm_info_malloc(&pcminfo);
DevList = malloc(sizeof(DevMap) * 1);
DevList[0].name = strdup(alsaDevice);
DevList[0].device = strdup(GetConfigValue("alsa", (stream==SND_PCM_STREAM_PLAYBACK) ?
"device" : "capture", "default"));
idx = 1;
card = -1;
if((err=snd_card_next(&card)) < 0)
ERR("Failed to find a card: %s\n", snd_strerror(err));
ConfigValueStr("alsa", prefix_name(stream), &main_prefix);
while(card >= 0)
{
const char *card_prefix = main_prefix;
const char *cardname, *cardid;
char name[256];
snprintf(name, sizeof(name), "hw:%d", card);
if((err = snd_ctl_open(&handle, name, 0)) < 0)
{
ERR("control open (hw:%d): %s\n", card, snd_strerror(err));
goto next_card;
}
if((err = snd_ctl_card_info(handle, info)) < 0)
{
ERR("control hardware info (hw:%d): %s\n", card, snd_strerror(err));
snd_ctl_close(handle);
goto next_card;
}
cardname = snd_ctl_card_info_get_name(info);
cardid = snd_ctl_card_info_get_id(info);
snprintf(name, sizeof(name), "%s-%s", prefix_name(stream), cardid);
ConfigValueStr("alsa", name, &card_prefix);
dev = -1;
while(1)
{
const char *devname;
void *temp;
if(snd_ctl_pcm_next_device(handle, &dev) < 0)
ERR("snd_ctl_pcm_next_device failed\n");
if(dev < 0)
break;
snd_pcm_info_set_device(pcminfo, dev);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, stream);
if((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
if(err != -ENOENT)
ERR("control digital audio info (hw:%d): %s\n", card, snd_strerror(err));
continue;
}
temp = realloc(DevList, sizeof(DevMap) * (idx+1));
if(temp)
{
const char *device_prefix = card_prefix;
char device[128];
DevList = temp;
devname = snd_pcm_info_get_name(pcminfo);
snprintf(name, sizeof(name), "%s-%s-%d", prefix_name(stream), cardid, dev);
ConfigValueStr("alsa", name, &device_prefix);
snprintf(name, sizeof(name), "%s, %s (CARD=%s,DEV=%d)",
cardname, devname, cardid, dev);
snprintf(device, sizeof(device), "%sCARD=%s,DEV=%d",
device_prefix, cardid, dev);
TRACE("Got device \"%s\", \"%s\"\n", name, device);
DevList[idx].name = strdup(name);
DevList[idx].device = strdup(device);
idx++;
}
}
snd_ctl_close(handle);
next_card:
if(snd_card_next(&card) < 0) {
ERR("snd_card_next failed\n");
break;
}
}
snd_pcm_info_free(pcminfo);
snd_ctl_card_info_free(info);
*count = idx;
return DevList;
}
static GList *
gst_alsa_get_device_list (snd_pcm_stream_t stream)
{
snd_ctl_t *handle;
int card, dev;
snd_ctl_card_info_t *info;
snd_pcm_info_t *pcminfo;
gboolean mixer = (stream == -1);
GList *list = NULL;
if (stream == -1)
stream = 0;
snd_ctl_card_info_malloc (&info);
snd_pcm_info_malloc (&pcminfo);
card = -1;
if (snd_card_next (&card) < 0 || card < 0) {
/* no soundcard found */
GST_WARNING ("No soundcard found");
goto beach;
}
while (card >= 0) {
gchar name[32];
g_snprintf (name, sizeof (name), "hw:%d", card);
if (snd_ctl_open (&handle, name, 0) < 0) {
goto next_card;
}
if (snd_ctl_card_info (handle, info) < 0) {
snd_ctl_close (handle);
goto next_card;
}
if (mixer) {
list = g_list_append (list, g_strdup (name));
} else {
dev = -1;
while (1) {
gchar *gst_device;
snd_ctl_pcm_next_device (handle, &dev);
if (dev < 0)
break;
snd_pcm_info_set_device (pcminfo, dev);
snd_pcm_info_set_subdevice (pcminfo, 0);
snd_pcm_info_set_stream (pcminfo, stream);
if (snd_ctl_pcm_info (handle, pcminfo) < 0) {
continue;
}
gst_device = g_strdup_printf ("hw:%d,%d", card, dev);
list = g_list_append (list, gst_device);
}
}
snd_ctl_close (handle);
next_card:
if (snd_card_next (&card) < 0) {
break;
}
}
beach:
snd_ctl_card_info_free (info);
snd_pcm_info_free (pcminfo);
return list;
}
static
jack_driver_param_constraint_desc_t *
enum_alsa_devices()
{
snd_ctl_t * handle;
snd_ctl_card_info_t * info;
snd_pcm_info_t * pcminfo_capture;
snd_pcm_info_t * pcminfo_playback;
int card_no = -1;
jack_driver_param_value_t card_id;
jack_driver_param_value_t device_id;
char description[64];
int device_no;
bool has_capture;
bool has_playback;
jack_driver_param_constraint_desc_t * constraint_ptr;
uint32_t array_size = 0;
snd_ctl_card_info_alloca(&info);
snd_pcm_info_alloca(&pcminfo_capture);
snd_pcm_info_alloca(&pcminfo_playback);
constraint_ptr = NULL;
while(snd_card_next(&card_no) >= 0 && card_no >= 0)
{
snprintf(card_id.str, sizeof(card_id.str), "hw:%d", card_no);
if (snd_ctl_open(&handle, card_id.str, 0) >= 0 &&
snd_ctl_card_info(handle, info) >= 0)
{
snprintf(card_id.str, sizeof(card_id.str), "hw:%s", snd_ctl_card_info_get_id(info));
if (!jack_constraint_add_enum(
&constraint_ptr,
&array_size,
&card_id,
snd_ctl_card_info_get_name(info)))
goto fail;
device_no = -1;
while (snd_ctl_pcm_next_device(handle, &device_no) >= 0 && device_no != -1)
{
snprintf(device_id.str, sizeof(device_id.str), "%s,%d", card_id.str, device_no);
snd_pcm_info_set_device(pcminfo_capture, device_no);
snd_pcm_info_set_subdevice(pcminfo_capture, 0);
snd_pcm_info_set_stream(pcminfo_capture, SND_PCM_STREAM_CAPTURE);
has_capture = snd_ctl_pcm_info(handle, pcminfo_capture) >= 0;
snd_pcm_info_set_device(pcminfo_playback, device_no);
snd_pcm_info_set_subdevice(pcminfo_playback, 0);
snd_pcm_info_set_stream(pcminfo_playback, SND_PCM_STREAM_PLAYBACK);
has_playback = snd_ctl_pcm_info(handle, pcminfo_playback) >= 0;
if (has_capture && has_playback)
{
snprintf(description, sizeof(description),"%s (duplex)", snd_pcm_info_get_name(pcminfo_capture));
}
else if (has_capture)
{
snprintf(description, sizeof(description),"%s (capture)", snd_pcm_info_get_name(pcminfo_capture));
}
else if (has_playback)
{
snprintf(description, sizeof(description),"%s (playback)", snd_pcm_info_get_name(pcminfo_playback));
}
else
{
continue;
}
if (!jack_constraint_add_enum(
&constraint_ptr,
&array_size,
&device_id,
description))
goto fail;
}
snd_ctl_close(handle);
}
}
return constraint_ptr;
fail:
jack_constraint_free(constraint_ptr);
return NULL;
}
static int list_devices_for_card(int card, struct modlist *ml, const struct dmDrive *drive, const uint32_t parent, const char *mask, unsigned long opt)
{
char dev[64];
char *card_name;
int err;
int pcm_device=-1;
int cards=0;
snd_ctl_t *ctl;
snprintf(dev, sizeof(dev), "hw:%i", card);
#ifdef ALSA_DEBUG
fprintf(stderr, "ALSA snd_ctl_open(&ctl, \"%s\", 0) = ", dev);
#endif
if ((err=snd_ctl_open(&ctl, dev, 0))<0)
{
#ifdef ALSA_DEBUG
fprintf(stderr, "failed: %s\n", snd_strerror(-err));
#endif
return cards;
}
#ifdef ALSA_DEBUG
fprintf(stderr, "ok\n");
fprintf(stderr, "ALSA snd_card_get_name(%i, &card_name) = ", card);
#endif
if ((err=snd_card_get_name(card, &card_name))!=0)
{
#ifdef ALSA_DEBUG
fprintf(stderr, "failed: %s\n", snd_strerror(-err));
#endif
card_name="Unknown card";
}
#ifdef ALSA_DEBUG
fprintf(stderr, "ok, %s name: %s\n", dev, card_name);
#endif
while(1)
{
#ifdef ALSA_DEBUG
fprintf(stderr, "ALSA snd_ctl_pcm_next_device(ctl, &pcm_device (%i)) = ", pcm_device);
#endif
if ((err=snd_ctl_pcm_next_device(ctl, &pcm_device))<0)
{
#ifdef ALSA_DEBUG
fprintf(stderr, " failed: %s\n", snd_strerror(-err));
#endif
pcm_device=-1;
}
#ifdef ALSA_DEBUG
fprintf(stderr, "ok, pcm_device=%i\n", pcm_device);
#endif
if (pcm_device<0)
break;
#ifdef ALSA_DEBUG
fprintf(stderr, "ALSA snd_pcm_info_set_device(pcm_info, %i)\n", pcm_device);
#endif
snd_pcm_info_set_device(pcm_info, pcm_device);
#ifdef ALSA_DEBUG
fprintf(stderr, "ALSA snd_pcm_info_set_subdevice(pcm_info, 0)\n");
#endif
snd_pcm_info_set_subdevice(pcm_info, 0);
#ifdef ALSA_DEBUG
fprintf(stderr, "ALSA snd_pcm_info_set_stream(pcm_info, SND_PCM_STREAM_PLAYBACK)\n");
#endif
snd_pcm_info_set_stream(pcm_info, SND_PCM_STREAM_PLAYBACK);
#ifdef ALSA_DEBUG
fprintf(stderr, "ALSA snd_ctl_pcm_info(ctl, pcm_info) = ");
#endif
if ((err=snd_ctl_pcm_info(ctl, pcm_info))<0)
{
#ifdef ALSA_DEBUG
fprintf(stderr, "failed: %s\n", snd_strerror(-err));
#endif
if (err!=-ENOENT)
fprintf(stderr, "ALSA: snd_device_from_card(): snd_ctl_pcm_info(%d:%d) failed: %s\n", card, pcm_device, snd_strerror(-err));
continue;
}
#ifdef ALSA_DEBUG
fprintf(stderr, "ALSA: hw:%d,%d: name %s\n", card, pcm_device, snd_pcm_info_get_name(pcm_info));
#endif
if (ml)
{
struct modlistentry entry;
memset(&entry, 0, sizeof(entry));
snprintf(entry.shortname, sizeof(entry.shortname), "hw:%d,%d.dev", card, pcm_device);
strcpy(entry.name, entry.shortname);
entry.drive=drive;
entry.dirdbfullpath=dirdbFindAndRef(parent, entry.name);
entry.flags=MODLIST_FLAG_FILE|MODLIST_FLAG_VIRTUAL;
entry.fileref=mdbGetModuleReference(entry.name, 0);
if (entry.fileref!=0xffffffff)
{
struct moduleinfostruct mi;
mdbGetModuleInfo(&mi, entry.fileref);
mi.flags1&=~MDB_VIRTUAL;
mi.channels=2;
snprintf(mi.modname, sizeof(mi.modname), "%s", snd_pcm_info_get_name(pcm_info));
mi.modtype=mtUnRead;
mdbWriteModuleInfo(entry.fileref, &mi);
}
entry.adb_ref=0xffffffff;
entry.Read=0; entry.ReadHeader=0; entry.ReadHandle=alsaSelectPcmOut;
modlist_append(ml, &entry);
dirdbUnref(entry.dirdbfullpath);
}
cards++;
}
#ifdef ALSA_DEBUG
fprintf(stderr, "ALSA snd_ctl_close(ctl)\n");
#endif
snd_ctl_close(ctl);
return cards;
}
bool AlsaBackend::ProbeDevice(DeviceInfo* device, StreamSpec& spec)
{
char *name;
if (devicesList.size() <= 1)
UpdateDevicesList();
size_t i = 1;
// find device in device pool by given ID
for (; i < devicesList.size(); ++i)
{
if ((device->guid[0] == 0 && device->id == devicesList.at(i).id) ||
strncmp(devicesList.at(i).guid, device->guid, DEVICE_NAME_MAXLEN) == 0)
{
Log("found device");
name = device->displayName;
break;
}
}
if (i >= devicesList.size())
{
Log("ProbeDevice failed!");
return false;
}
// If device is BLUETOOTH type, don't waste time and start with 8KHz immediately. A2DP is not supported.
if (device->type == DeviceInfo::TYPE_BLUETOOTH)
{
spec.rate = 8000;
spec.channels = 1;
}
int result;
char hwctl[8];
snd_ctl_t *chandle = 0;
int openMode = SND_PCM_ASYNC;
snd_pcm_stream_t stream;
snd_pcm_info_t *pcminfo;
snd_pcm_info_alloca(&pcminfo);
snd_pcm_t *phandle = 0;
snd_pcm_hw_params_t *params;
snd_pcm_hw_params_alloca(¶ms);
// Probe mixer for device
if (!device->mixer)
device->mixer = new AlsaVolumeControl;
static_cast<AlsaVolumeControl*>(device->mixer)->ProbeMixer(device);
// First try for playback
stream = SND_PCM_STREAM_PLAYBACK;
bool skipPlayback = false;
if (device->type == DeviceInfo::TYPE_HW)
{
snprintf(hwctl, 8, "hw:%d", device->id);
Log("Trying to open ctl %s", hwctl);
result = snd_ctl_open(&chandle, hwctl, SND_CTL_NONBLOCK);
//@todo snd_ctl_card_info() call?
if (result >= 0)
{
snd_pcm_info_set_device(pcminfo, device->id);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, stream);
result = snd_ctl_pcm_info(chandle, pcminfo);
if (result < 0)
{
Log("Device probably doesn't support playback (dev %d): %s", device->id, snd_strerror(result));
skipPlayback = true;
}
}
else
{
Log("Device probably doesn't have ctl interface.");
chandle = 0;
}
}
if (!skipPlayback)
{
result = snd_pcm_open(&phandle, device->guid, stream, openMode | SND_PCM_NONBLOCK);
if (result >= 0)
{
// The device is open ... fill the parameter structure.
result = snd_pcm_hw_params_any(phandle, params);
if (result >= 0)
{
// Get output channel information.
unsigned int value;
result = snd_pcm_hw_params_get_channels_max(params, &value);
if (result >= 0)
{
device->outMaxChannels = value;
snd_pcm_close(phandle);
}
else
{
snd_pcm_close(phandle); // @todo unify handle closing calls in case of errors
Log("error getting device %s output channels: %s", name, snd_strerror(result));
}
}
else
{
snd_pcm_close(phandle); // @todo unify handle closing calls in case of errors (_EE_CALL)
Log("snd_pcm_hw_params error for device %s: %s", name, snd_strerror(result));
}
}
else
{
Log("snd_pcm_open error for playback on device %s: %s", name, snd_strerror(result));
}
}
// Now try for capture
stream = SND_PCM_STREAM_CAPTURE;
snd_pcm_info_set_stream(pcminfo, stream);
if (device->type == DeviceInfo::TYPE_HW && chandle)
{
result = snd_ctl_pcm_info(chandle, pcminfo);
snd_ctl_close(chandle);
if (result < 0) {
Log("Device probably doesn't support capture: %s", snd_strerror(result));
if (device->outMaxChannels == 0) // cannot playback/capture at all
{
Log("ProbeDevice failed!");
return false;
}
return ProbeParameters(device, spec, phandle, stream, pcminfo, name, params);
}
}
result = snd_pcm_open(&phandle, device->guid, stream, openMode | SND_PCM_NONBLOCK);
if (result < 0) {
Log("snd_pcm_open error for capture on device %s: %s", name, snd_strerror(result));
if (device->outMaxChannels == 0)
{
Log("ProbeDevice failed!");
return false;
}
return ProbeParameters(device, spec, phandle, stream, pcminfo, name, params);
}
// The device is open ... fill the parameter structure.
result = snd_pcm_hw_params_any(phandle, params);
if (result < 0) {
snd_pcm_close(phandle);
Log("snd_pcm_hw_params error for device %s: %s", name, snd_strerror(result));
if (device->outMaxChannels == 0)
{
Log("ProbeDevice failed!");
return false;
}
return ProbeParameters(device, spec, phandle, stream, pcminfo, name, params);
}
unsigned int value;
result = snd_pcm_hw_params_get_channels_max(params, &value);
if (result < 0) {
snd_pcm_close(phandle);
Log("error getting device %s input channels: %s", name, snd_strerror(result));
if (device->outMaxChannels == 0)
{
Log("ProbeDevice failed!");
return false;
}
return ProbeParameters(device, spec, phandle, stream, pcminfo, name, params);
}
device->inMaxChannels = value;
snd_pcm_close(phandle);
return ProbeParameters(device, spec, phandle, stream, pcminfo, name, params);
}
void
ManglerAlsa::getDeviceList(std::vector<ManglerAudioDevice*>& inputDevices, std::vector<ManglerAudioDevice*>& outputDevices) {/*{{{*/
snd_pcm_stream_t stream[2] = { SND_PCM_STREAM_PLAYBACK, SND_PCM_STREAM_CAPTURE };
int ctr;
for (ctr = 0; ctr < 2; ctr++) { // the rest is just copypasta, with bad code from alsa
snd_ctl_t *handle;
int card, err, dev, idx_p = 0, idx_c = 0;
snd_ctl_card_info_t *info;
snd_pcm_info_t *pcminfo;
card = -1;
snd_ctl_card_info_alloca(&info);
snd_pcm_info_alloca(&pcminfo);
if (snd_card_next(&card) < 0 || card < 0) {
fputs("alsa: no sound cards found!\n", stderr);
return;
}
while (card >= 0) {
char hw[256] = "";
snprintf(hw, 255, "hw:%i", card);
if ((err = snd_ctl_open(&handle, hw, 0)) < 0) {
fprintf(stderr, "alsa: control open (%i): %s\n", card, snd_strerror(err));
if (snd_card_next(&card) < 0) {
fprintf(stderr, "alsa: snd_ctl_open: snd_card_next\n");
break;
}
continue;
}
if ((err = snd_ctl_card_info(handle, info)) < 0) {
fprintf(stderr, "alsa: control hardware info (%i): %s\n", card, snd_strerror(err));
snd_ctl_close(handle);
if (snd_card_next(&card) < 0) {
fprintf(stderr, "alsa: snd_ctl_card_info: snd_card_next\n");
break;
}
continue;
}
dev = -1;
for (;;) {
if (snd_ctl_pcm_next_device(handle, &dev) < 0) {
fprintf(stderr, "alsa: snd_ctl_pcm_next_device\n");
}
if (dev < 0) {
break;
}
snd_pcm_info_set_device(pcminfo, dev);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, stream[ctr]);
if ((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
if (err != -ENOENT) {
fprintf(stderr, "alsa: control digital audio info (%i): %s\n", card, snd_strerror(err));
}
continue;
}
char name[256] = "", desc[512] = "";
snprintf(name, 255, "hw:%i,%i", card, dev);
snprintf(desc, 511, "%s: %s (%s)",
snd_ctl_card_info_get_name(info),
snd_pcm_info_get_name(pcminfo),
name
);
switch (stream[ctr]) {
case SND_PCM_STREAM_PLAYBACK:
outputDevices.push_back(
new ManglerAudioDevice(
idx_p++,
name,
desc)
);
break;
case SND_PCM_STREAM_CAPTURE:
inputDevices.push_back(
new ManglerAudioDevice(
idx_c++,
name,
desc)
);
break;
}
}
snd_ctl_close(handle);
if (snd_card_next(&card) < 0) {
fprintf(stderr, "alsa: snd_card_next\n");
break;
}
}
}
}/*}}}*/
// for each ALSA device, call iterator. userData is passed to the iterator
// returns total number of iterations
int iteratePCMDevices(DeviceIteratorPtr iterator, void* userData) {
int count = 0;
int subdeviceCount;
int card, dev, subDev;
char devname[16];
int err;
snd_ctl_t *handle;
snd_pcm_t *pcm;
snd_pcm_info_t* pcminfo;
snd_ctl_card_info_t *cardinfo, *defcardinfo = NULL;
UINT32 deviceID;
int doContinue = TRUE;
snd_pcm_info_malloc(&pcminfo);
snd_ctl_card_info_malloc(&cardinfo);
// 1st try "default" device
err = snd_pcm_open(&pcm, ALSA_DEFAULT_DEVICE_NAME,
SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
if (err < 0) {
// try with the other direction
err = snd_pcm_open(&pcm, ALSA_DEFAULT_DEVICE_NAME,
SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK);
}
if (err < 0) {
ERROR1("ERROR: snd_pcm_open (\"default\"): %s\n", snd_strerror(err));
} else {
err = snd_pcm_info(pcm, pcminfo);
snd_pcm_close(pcm);
if (err < 0) {
ERROR1("ERROR: snd_pcm_info (\"default\"): %s\n",
snd_strerror(err));
} else {
// try to get card info
card = snd_pcm_info_get_card(pcminfo);
if (card >= 0) {
sprintf(devname, ALSA_HARDWARE_CARD, card);
if (snd_ctl_open(&handle, devname, SND_CTL_NONBLOCK) >= 0) {
if (snd_ctl_card_info(handle, cardinfo) >= 0) {
defcardinfo = cardinfo;
}
snd_ctl_close(handle);
}
}
// call callback function for the device
if (iterator != NULL) {
doContinue = (*iterator)(ALSA_DEFAULT_DEVICE_ID, pcminfo,
defcardinfo, userData);
}
count++;
}
}
// iterate cards
card = -1;
while (doContinue) {
if (snd_card_next(&card) < 0) {
break;
}
if (card < 0) {
break;
}
sprintf(devname, ALSA_HARDWARE_CARD, card);
TRACE1("Opening alsa device \"%s\"...\n", devname);
err = snd_ctl_open(&handle, devname, SND_CTL_NONBLOCK);
if (err < 0) {
ERROR2("ERROR: snd_ctl_open, card=%d: %s\n",
card, snd_strerror(err));
} else {
err = snd_ctl_card_info(handle, cardinfo);
if (err < 0) {
ERROR2("ERROR: snd_ctl_card_info, card=%d: %s\n",
card, snd_strerror(err));
} else {
dev = -1;
while (doContinue) {
if (snd_ctl_pcm_next_device(handle, &dev) < 0) {
ERROR0("snd_ctl_pcm_next_device\n");
}
if (dev < 0) {
break;
}
snd_pcm_info_set_device(pcminfo, dev);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_PLAYBACK);
err = snd_ctl_pcm_info(handle, pcminfo);
if (err == -ENOENT) {
// try with the other direction
snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_CAPTURE);
err = snd_ctl_pcm_info(handle, pcminfo);
}
if (err < 0) {
if (err != -ENOENT) {
ERROR2("ERROR: snd_ctl_pcm_info, card=%d: %s",
card, snd_strerror(err));
}
} else {
subdeviceCount = needEnumerateSubdevices(ALSA_PCM) ?
snd_pcm_info_get_subdevices_count(pcminfo) : 1;
if (iterator!=NULL) {
for (subDev = 0; subDev < subdeviceCount; subDev++) {
deviceID = encodeDeviceID(card, dev, subDev);
doContinue = (*iterator)(deviceID, pcminfo,
cardinfo, userData);
count++;
if (!doContinue) {
break;
}
}
} else {
count += subdeviceCount;
}
}
} // of while(doContinue)
}
snd_ctl_close(handle);
}
}
snd_ctl_card_info_free(cardinfo);
snd_pcm_info_free(pcminfo);
return count;
}
/* Try and find an IEC958 PCM device and mixer on card 0 and open it
* This function is only used on older ALSA installs that don't have the
* correct iec958 alias stuff set up, and relies on there being only
* one IEC958 PCM device (relies IEC958 in the device name) and one IEC958
* mixer control for doing the settings.
*/
static int
alsaspdifsink_find_pcm_device (AlsaSPDIFSink * sink)
{
int err = -1, dev, idx, count;
const gchar *ctl_name = "hw:0";
const gchar *spdif_name = SND_CTL_NAME_IEC958 ("", PLAYBACK, NONE);
int card = sink->card;
gchar pcm_name[24];
snd_pcm_t *pcm = NULL;
snd_ctl_t *ctl = NULL;
snd_ctl_card_info_t *info = NULL;
snd_ctl_elem_list_t *clist = NULL;
snd_ctl_elem_id_t *cid = NULL;
snd_pcm_info_t *pinfo = NULL;
GST_WARNING ("Opening IEC958 named device failed. Trying to autodetect");
if ((err = snd_ctl_open (&ctl, ctl_name, card)) < 0)
return err;
snd_ctl_card_info_malloc (&info);
snd_pcm_info_malloc (&pinfo);
/* Find a mixer for IEC958 settings */
snd_ctl_elem_list_malloc (&clist);
if ((err = snd_ctl_elem_list (ctl, clist)) < 0)
goto beach;
if ((err =
snd_ctl_elem_list_alloc_space (clist,
snd_ctl_elem_list_get_count (clist))) < 0)
goto beach;
if ((err = snd_ctl_elem_list (ctl, clist)) < 0)
goto beach;
count = snd_ctl_elem_list_get_used (clist);
for (idx = 0; idx < count; idx++) {
if (strstr (snd_ctl_elem_list_get_name (clist, idx), spdif_name) != NULL)
break;
}
if (idx == count) {
/* No SPDIF mixer availble */
err = 0;
goto beach;
}
snd_ctl_elem_id_malloc (&cid);
snd_ctl_elem_list_get_id (clist, idx, cid);
/* Now find a PCM device for IEC 958 */
if ((err = snd_ctl_card_info (ctl, info)) < 0)
goto beach;
dev = -1;
do {
if (snd_ctl_pcm_next_device (ctl, &dev) < 0)
goto beach;
if (dev < 0)
break; /* No more devices */
/* Filter for playback devices */
snd_pcm_info_set_device (pinfo, dev);
snd_pcm_info_set_subdevice (pinfo, 0);
snd_pcm_info_set_stream (pinfo, SND_PCM_STREAM_PLAYBACK);
if ((err = snd_ctl_pcm_info (ctl, pinfo)) < 0) {
if (err != -ENOENT)
goto beach; /* Genuine error */
/* Device has no playback streams */
continue;
}
if (strstr (snd_pcm_info_get_name (pinfo), "IEC958") == NULL)
continue; /* Not the device we are looking for */
count = snd_pcm_info_get_subdevices_count (pinfo);
GST_LOG_OBJECT (sink, "Device %d has %d subdevices\n", dev,
snd_pcm_info_get_subdevices_count (pinfo));
for (idx = 0; idx < count; idx++) {
snd_pcm_info_set_subdevice (pinfo, idx);
if ((err = snd_ctl_pcm_info (ctl, pinfo)) < 0)
goto beach;
g_assert (snd_pcm_info_get_stream (pinfo) == SND_PCM_STREAM_PLAYBACK);
GST_LOG_OBJECT (sink, "Found playback stream on dev %d sub-d %d\n", dev,
idx);
/* Found a suitable PCM device, let's open it */
g_snprintf (pcm_name, 24, "hw:%d,%d", card, dev);
if ((err =
snd_pcm_open (&(pcm), pcm_name, SND_PCM_STREAM_PLAYBACK, 0)) < 0)
goto beach;
break;
}
} while (pcm == NULL);
if (pcm != NULL) {
snd_ctl_elem_value_t *cval;
snd_aes_iec958_t iec958;
/* Have a PCM device and a mixer, set things up */
snd_ctl_elem_value_malloc (&cval);
snd_ctl_elem_value_set_id (cval, cid);
snd_ctl_elem_value_get_iec958 (cval, &iec958);
iec958.status[0] = IEC958_AES0_NONAUDIO;
iec958.status[1] = IEC958_AES1_CON_ORIGINAL | IEC958_AES1_CON_PCM_CODER;
iec958.status[2] = 0;
iec958.status[3] = IEC958_AES3_CON_FS_48000;
snd_ctl_elem_value_set_iec958 (cval, &iec958);
snd_ctl_elem_value_free (cval);
sink->pcm = pcm;
pcm = NULL;
err = 0;
}
beach:
if (pcm)
snd_pcm_close (pcm);
if (clist)
snd_ctl_elem_list_clear (clist);
if (ctl)
snd_ctl_close (ctl);
if (clist)
snd_ctl_elem_list_free (clist);
if (cid)
snd_ctl_elem_id_free (cid);
if (info)
snd_ctl_card_info_free (info);
if (pinfo)
snd_pcm_info_free (pinfo);
return err;
}
void AudioALSA::list_devices(ArrayList<char*> *devices, int pcm_title, int mode)
{
snd_ctl_t *handle;
int card, err, dev, idx;
snd_ctl_card_info_t *info;
snd_pcm_info_t *pcminfo;
char string[BCTEXTLEN];
snd_pcm_stream_t stream = SND_PCM_STREAM_PLAYBACK;
int error;
switch(mode)
{
case MODERECORD:
stream = SND_PCM_STREAM_CAPTURE;
break;
case MODEPLAY:
stream = SND_PCM_STREAM_PLAYBACK;
break;
}
snd_ctl_card_info_alloca(&info);
snd_pcm_info_alloca(&pcminfo);
card = -1;
#define DEFAULT_DEVICE "default"
char *result = new char[strlen(DEFAULT_DEVICE) + 1];
devices->append(result);
devices->set_array_delete(); // since we are allocating by new[]
strcpy(result, DEFAULT_DEVICE);
while(snd_card_next(&card) >= 0)
{
char name[BCTEXTLEN];
if(card < 0) break;
sprintf(name, "hw:%i", card);
if((err = snd_ctl_open(&handle, name, 0)) < 0)
{
printf("AudioALSA::list_devices card=%i: %s\n", card, snd_strerror(err));
continue;
}
if((err = snd_ctl_card_info(handle, info)) < 0)
{
printf("AudioALSA::list_devices card=%i: %s\n", card, snd_strerror(err));
snd_ctl_close(handle);
continue;
}
dev = -1;
while(1)
{
unsigned int count;
if(snd_ctl_pcm_next_device(handle, &dev) < 0)
printf("AudioALSA::list_devices: snd_ctl_pcm_next_device\n");
if (dev < 0)
break;
snd_pcm_info_set_device(pcminfo, dev);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, stream);
if((err = snd_ctl_pcm_info(handle, pcminfo)) < 0)
{
if(err != -ENOENT)
printf("AudioALSA::list_devices card=%i: %s\n", card, snd_strerror(err));
continue;
}
if(pcm_title)
{
sprintf(string, "plughw:%d,%d", card, dev);
// strcpy(string, "cards.pcm.front");
}
else
{
sprintf(string, "%s #%d",
snd_ctl_card_info_get_name(info),
dev);
}
char *result = devices->append(new char[strlen(string) + 1]);
strcpy(result, string);
}
snd_ctl_close(handle);
}
// snd_ctl_card_info_free(info);
// snd_pcm_info_free(pcminfo);
}
void CAESinkALSA::EnumerateDevicesEx(AEDeviceInfoList &list)
{
/* ensure that ALSA has been initialized */
if(!snd_config)
snd_config_update();
snd_ctl_t *ctlhandle;
snd_pcm_t *pcmhandle;
snd_ctl_card_info_t *ctlinfo;
snd_ctl_card_info_alloca(&ctlinfo);
memset(ctlinfo, 0, snd_ctl_card_info_sizeof());
snd_pcm_hw_params_t *hwparams;
snd_pcm_hw_params_alloca(&hwparams);
memset(hwparams, 0, snd_pcm_hw_params_sizeof());
snd_pcm_info_t *pcminfo;
snd_pcm_info_alloca(&pcminfo);
memset(pcminfo, 0, snd_pcm_info_sizeof());
/* get the sound config */
snd_config_t *config;
snd_config_copy(&config, snd_config);
std::string strHwName;
int n_cards = -1;
while (snd_card_next(&n_cards) == 0 && n_cards != -1)
{
std::stringstream sstr;
sstr << "hw:" << n_cards;
std::string strHwName = sstr.str();
if (snd_ctl_open_lconf(&ctlhandle, strHwName.c_str(), 0, config) != 0)
{
CLog::Log(LOGDEBUG, "CAESinkALSA::EnumerateDevicesEx - Unable to open control for device %s", strHwName.c_str());
continue;
}
if (snd_ctl_card_info(ctlhandle, ctlinfo) != 0)
{
CLog::Log(LOGDEBUG, "CAESinkALSA::EnumerateDevicesEx - Unable to get card control info for device %s", strHwName.c_str());
snd_ctl_close(ctlhandle);
continue;
}
snd_hctl_t *hctl;
if (snd_hctl_open_ctl(&hctl, ctlhandle) != 0)
hctl = NULL;
snd_hctl_load(hctl);
int pcm_index = 0;
int iec958_index = 0;
int hdmi_index = 0;
int dev = -1;
while (snd_ctl_pcm_next_device(ctlhandle, &dev) == 0 && dev != -1)
{
snd_pcm_info_set_device (pcminfo, dev);
snd_pcm_info_set_subdevice(pcminfo, 0 );
snd_pcm_info_set_stream (pcminfo, SND_PCM_STREAM_PLAYBACK);
if (snd_ctl_pcm_info(ctlhandle, pcminfo) < 0)
{
CLog::Log(LOGDEBUG, "CAESinkALSA::EnumerateDevicesEx - Skipping device %s,%d as it does not have PCM playback ability", strHwName.c_str(), dev);
continue;
}
int dev_index;
sstr.str(std::string());
CAEDeviceInfo info;
std::string devname = snd_pcm_info_get_name(pcminfo);
bool maybeHDMI = false;
/* detect HDMI */
if (devname.find("HDMI") != std::string::npos)
{
info.m_deviceType = AE_DEVTYPE_HDMI;
dev_index = hdmi_index++;
sstr << "hdmi";
}
else
{
/* detect IEC958 */
/* some HDMI devices (intel) report Digital for HDMI also */
if (devname.find("Digital") != std::string::npos)
maybeHDMI = true;
if (maybeHDMI || devname.find("IEC958" ) != std::string::npos)
{
info.m_deviceType = AE_DEVTYPE_IEC958;
dev_index = iec958_index; /* dont increment, it might be HDMI */
sstr << "iec958";
}
else
{
info.m_deviceType = AE_DEVTYPE_PCM;
dev_index = pcm_index++;
sstr << "hw";
}
}
/* build the driver string to pass to ALSA */
sstr << ":CARD=" << snd_ctl_card_info_get_id(ctlinfo) << ",DEV=" << dev_index;
info.m_deviceName = sstr.str();
/* get the friendly display name*/
info.m_displayName = snd_ctl_card_info_get_name(ctlinfo);
info.m_displayNameExtra = devname;
/* open the device for testing */
int err = snd_pcm_open_lconf(&pcmhandle, info.m_deviceName.c_str(), SND_PCM_STREAM_PLAYBACK, 0, config);
/* if open of possible IEC958 failed and it could be HDMI, try as HDMI */
if (err < 0 && maybeHDMI)
{
/* check for HDMI if it failed */
sstr.str(std::string());
dev_index = hdmi_index;
sstr << "hdmi";
sstr << ":CARD=" << snd_ctl_card_info_get_id(ctlinfo) << ",DEV=" << dev_index;
info.m_deviceName = sstr.str();
err = snd_pcm_open_lconf(&pcmhandle, info.m_deviceName.c_str(), SND_PCM_STREAM_PLAYBACK, 0, config);
/* if it was valid, increment the index and set the type */
if (err >= 0)
{
++hdmi_index;
info.m_deviceType = AE_DEVTYPE_HDMI;
}
}
/* if it's still IEC958, increment the index */
if (info.m_deviceType == AE_DEVTYPE_IEC958)
++iec958_index;
/* final error check */
if (err < 0)
{
CLog::Log(LOGINFO, "CAESinkALSA::EnumerateDevicesEx - Unable to open %s for capability detection", strHwName.c_str());
continue;
}
/* see if we can get ELD for this device */
if (info.m_deviceType == AE_DEVTYPE_HDMI)
{
bool badHDMI = false;
if (hctl && !GetELD(hctl, dev, info, badHDMI))
CLog::Log(LOGDEBUG, "CAESinkALSA::EnumerateDevicesEx - Unable to obtain ELD information for device %s, make sure you have ALSA >= 1.0.25", info.m_deviceName.c_str());
if (badHDMI)
{
CLog::Log(LOGDEBUG, "CAESinkALSA::EnumerateDevicesEx - Skipping HDMI device %s as it has no ELD data", info.m_deviceName.c_str());
continue;
}
}
/* ensure we can get a playback configuration for the device */
if (snd_pcm_hw_params_any(pcmhandle, hwparams) < 0)
{
CLog::Log(LOGINFO, "CAESinkALSA::EnumerateDevicesEx - No playback configurations available for device %s", info.m_deviceName.c_str());
snd_pcm_close(pcmhandle);
continue;
}
/* detect the available sample rates */
for (unsigned int *rate = ALSASampleRateList; *rate != 0; ++rate)
if (snd_pcm_hw_params_test_rate(pcmhandle, hwparams, *rate, 0) >= 0)
info.m_sampleRates.push_back(*rate);
/* detect the channels available */
int channels = 0;
for (int i = 1; i <= ALSA_MAX_CHANNELS; ++i)
if (snd_pcm_hw_params_test_channels(pcmhandle, hwparams, i) >= 0)
channels = i;
CAEChannelInfo alsaChannels;
for (int i = 0; i < channels; ++i)
{
if (!info.m_channels.HasChannel(ALSAChannelMap[i]))
info.m_channels += ALSAChannelMap[i];
alsaChannels += ALSAChannelMap[i];
}
/* remove the channels from m_channels that we cant use */
info.m_channels.ResolveChannels(alsaChannels);
/* detect the PCM sample formats that are available */
for (enum AEDataFormat i = AE_FMT_MAX; i > AE_FMT_INVALID; i = (enum AEDataFormat)((int)i - 1))
{
if (AE_IS_RAW(i) || i == AE_FMT_MAX)
continue;
snd_pcm_format_t fmt = AEFormatToALSAFormat(i);
if (fmt == SND_PCM_FORMAT_UNKNOWN)
continue;
if (snd_pcm_hw_params_test_format(pcmhandle, hwparams, fmt) >= 0)
info.m_dataFormats.push_back(i);
}
snd_pcm_close(pcmhandle);
list.push_back(info);
}
/* snd_hctl_close also closes ctlhandle */
if (hctl)
snd_hctl_close(hctl);
else
snd_ctl_close(ctlhandle);
}
}
static void GetDevicesForCard( module_config_t *p_item, int i_card )
{
int i_pcm_device = -1;
int i_err = 0;
snd_pcm_info_t *p_pcm_info;
snd_ctl_t *p_ctl;
char psz_dev[64];
char *psz_card_name;
sprintf( psz_dev, "hw:%i", i_card );
if( ( i_err = snd_ctl_open( &p_ctl, psz_dev, 0 ) ) < 0 )
return;
if( ( i_err = snd_card_get_name( i_card, &psz_card_name ) ) != 0)
psz_card_name = _("Unknown soundcard");
snd_pcm_info_alloca( &p_pcm_info );
for (;;)
{
char *psz_device, *psz_descr;
if( ( i_err = snd_ctl_pcm_next_device( p_ctl, &i_pcm_device ) ) < 0 )
i_pcm_device = -1;
if( i_pcm_device < 0 )
break;
snd_pcm_info_set_device( p_pcm_info, i_pcm_device );
snd_pcm_info_set_subdevice( p_pcm_info, 0 );
snd_pcm_info_set_stream( p_pcm_info, SND_PCM_STREAM_PLAYBACK );
if( ( i_err = snd_ctl_pcm_info( p_ctl, p_pcm_info ) ) < 0 )
{
if( i_err != -ENOENT )
{
/*printf( "get_devices_for_card(): "
"snd_ctl_pcm_info() "
"failed (%d:%d): %s.\n", i_card,
i_pcm_device, snd_strerror( -i_err ) );*/
}
continue;
}
if( asprintf( &psz_device, "hw:%d,%d", i_card, i_pcm_device ) == -1 )
break;
if( asprintf( &psz_descr, "%s: %s (%s)", psz_card_name,
snd_pcm_info_get_name(p_pcm_info), psz_device ) == -1 )
{
free( psz_device );
break;
}
p_item->ppsz_list =
(char **)realloc( p_item->ppsz_list,
(p_item->i_list + 2) * sizeof(char *) );
p_item->ppsz_list_text =
(char **)realloc( p_item->ppsz_list_text,
(p_item->i_list + 2) * sizeof(char *) );
p_item->ppsz_list[ p_item->i_list ] = psz_device;
p_item->ppsz_list_text[ p_item->i_list ] = psz_descr;
p_item->i_list++;
p_item->ppsz_list[ p_item->i_list ] = NULL;
p_item->ppsz_list_text[ p_item->i_list ] = NULL;
}
snd_ctl_close( p_ctl );
}
static DevMap *probe_devices(snd_pcm_stream_t stream, ALuint *count)
{
snd_ctl_t *handle;
int card, err, dev, idx;
snd_ctl_card_info_t *info;
snd_pcm_info_t *pcminfo;
DevMap *DevList;
char name[1024];
snd_ctl_card_info_malloc(&info);
snd_pcm_info_malloc(&pcminfo);
card = -1;
if((err=snd_card_next(&card)) < 0)
ERR("Failed to find a card: %s\n", snd_strerror(err));
DevList = malloc(sizeof(DevMap) * 1);
DevList[0].name = strdup("ALSA Default");
DevList[0].card = NULL;
DevList[0].dev = 0;
idx = 1;
while(card >= 0)
{
sprintf(name, "hw:%d", card);
if((err = snd_ctl_open(&handle, name, 0)) < 0)
{
ERR("control open (%i): %s\n", card, snd_strerror(err));
goto next_card;
}
if((err = snd_ctl_card_info(handle, info)) < 0)
{
ERR("control hardware info (%i): %s\n", card, snd_strerror(err));
snd_ctl_close(handle);
goto next_card;
}
dev = -1;
while(1)
{
const char *cname, *dname, *cid;
void *temp;
if(snd_ctl_pcm_next_device(handle, &dev) < 0)
ERR("snd_ctl_pcm_next_device failed\n");
if(dev < 0)
break;
snd_pcm_info_set_device(pcminfo, dev);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, stream);
if((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
if(err != -ENOENT)
ERR("control digital audio info (%i): %s\n", card, snd_strerror(err));
continue;
}
temp = realloc(DevList, sizeof(DevMap) * (idx+1));
if(temp)
{
DevList = temp;
cname = snd_ctl_card_info_get_name(info);
dname = snd_pcm_info_get_name(pcminfo);
cid = snd_ctl_card_info_get_id(info);
snprintf(name, sizeof(name), "%s, %s (CARD=%s,DEV=%d)",
cname, dname, cid, dev);
DevList[idx].name = strdup(name);
DevList[idx].card = strdup(cid);
DevList[idx].dev = dev;
idx++;
}
}
snd_ctl_close(handle);
next_card:
if(snd_card_next(&card) < 0) {
ERR("snd_card_next failed\n");
break;
}
}
snd_pcm_info_free(pcminfo);
snd_ctl_card_info_free(info);
*count = idx;
return DevList;
}
void ALSAAudioCaptureDevice::enumerateDevices(std::vector<AudioCaptureDevice::DeviceIdPtr>& devices)
{
/* Enumerate all ALSA cards and devices: */
int cardIndex=-1; // Start with first card
while(true)
{
/* Get the index of the next card: */
if(snd_card_next(&cardIndex)!=0||cardIndex<0)
{
/* There was an error, or there are no more cards: */
break;
}
/* Open the card's control interface: */
char cardName[20];
snprintf(cardName,sizeof(cardName),"hw:%d",cardIndex);
snd_ctl_t* cardHandle;
if(snd_ctl_open(&cardHandle,cardName,0)!=0)
break;
/* Enumerate all PCM devices on this card: */
int numCardDevices=0;
int pcmIndex=-1;
while(true)
{
/* Get the index of the next PCM device: */
if(snd_ctl_pcm_next_device(cardHandle,&pcmIndex)!=0||pcmIndex<0)
{
/* There was an error, or there are no more PCM devices: */
break;
}
/* Create an info structure for the PCM device: */
snd_pcm_info_t* pcmInfo;
snd_pcm_info_alloca(&pcmInfo);
snd_pcm_info_set_device(pcmInfo,pcmIndex);
snd_pcm_info_set_stream(pcmInfo,SND_PCM_STREAM_CAPTURE);
/* Get the number of capture subdevices for the device: */
if(snd_ctl_pcm_info(cardHandle,pcmInfo)!=0)
break;
int numSubDevices=snd_pcm_info_get_subdevices_count(pcmInfo);
for(int subDeviceIndex=0;subDeviceIndex<numSubDevices;++subDeviceIndex)
{
/* Query information about the subdevice: */
snd_pcm_info_set_subdevice(pcmInfo,subDeviceIndex);
if(snd_ctl_pcm_info(cardHandle,pcmInfo)==0)
{
/* Query the card's name: */
char* cardName;
if(snd_card_get_name(cardIndex,&cardName)==0)
{
/* Create a device ID: */
std::string deviceName=cardName;
free(cardName);
if(numCardDevices>0)
{
char suffix[10];
snprintf(suffix,sizeof(suffix),":%d",numCardDevices);
deviceName.append(suffix);
}
DeviceId* newDeviceId=new DeviceId(deviceName);
/* Set the PCM device name: */
char pcmDeviceName[20];
if(numSubDevices>1)
snprintf(pcmDeviceName,sizeof(pcmDeviceName),"plughw:%d,%d,%d",snd_pcm_info_get_card(pcmInfo),snd_pcm_info_get_device(pcmInfo),snd_pcm_info_get_subdevice(pcmInfo));
else
snprintf(pcmDeviceName,sizeof(pcmDeviceName),"plughw:%d,%d",snd_pcm_info_get_card(pcmInfo),snd_pcm_info_get_device(pcmInfo));
newDeviceId->pcmDeviceName=pcmDeviceName;
/* Store the device ID: */
devices.push_back(newDeviceId);
++numCardDevices;
}
}
}
}
/* Close the card's control interface: */
snd_ctl_close(cardHandle);
}
}
static void probe_devices(snd_pcm_stream_t stream, vector_DevMap *DeviceList)
{
const char *main_prefix = "plughw:";
snd_ctl_t *handle;
snd_ctl_card_info_t *info;
snd_pcm_info_t *pcminfo;
int card, err, dev;
DevMap entry;
clear_devlist(DeviceList);
snd_ctl_card_info_malloc(&info);
snd_pcm_info_malloc(&pcminfo);
AL_STRING_INIT(entry.name);
AL_STRING_INIT(entry.device_name);
al_string_copy_cstr(&entry.name, alsaDevice);
al_string_copy_cstr(&entry.device_name, GetConfigValue(NULL, "alsa", (stream==SND_PCM_STREAM_PLAYBACK) ?
"device" : "capture", "default"));
VECTOR_PUSH_BACK(*DeviceList, entry);
card = -1;
if((err=snd_card_next(&card)) < 0)
ERR("Failed to find a card: %s\n", snd_strerror(err));
ConfigValueStr(NULL, "alsa", prefix_name(stream), &main_prefix);
while(card >= 0)
{
const char *card_prefix = main_prefix;
const char *cardname, *cardid;
char name[256];
snprintf(name, sizeof(name), "hw:%d", card);
if((err = snd_ctl_open(&handle, name, 0)) < 0)
{
ERR("control open (hw:%d): %s\n", card, snd_strerror(err));
goto next_card;
}
if((err = snd_ctl_card_info(handle, info)) < 0)
{
ERR("control hardware info (hw:%d): %s\n", card, snd_strerror(err));
snd_ctl_close(handle);
goto next_card;
}
cardname = snd_ctl_card_info_get_name(info);
cardid = snd_ctl_card_info_get_id(info);
snprintf(name, sizeof(name), "%s-%s", prefix_name(stream), cardid);
ConfigValueStr(NULL, "alsa", name, &card_prefix);
dev = -1;
while(1)
{
const char *device_prefix = card_prefix;
const char *devname;
char device[128];
if(snd_ctl_pcm_next_device(handle, &dev) < 0)
ERR("snd_ctl_pcm_next_device failed\n");
if(dev < 0)
break;
snd_pcm_info_set_device(pcminfo, dev);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, stream);
if((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
if(err != -ENOENT)
ERR("control digital audio info (hw:%d): %s\n", card, snd_strerror(err));
continue;
}
devname = snd_pcm_info_get_name(pcminfo);
snprintf(name, sizeof(name), "%s-%s-%d", prefix_name(stream), cardid, dev);
ConfigValueStr(NULL, "alsa", name, &device_prefix);
snprintf(name, sizeof(name), "%s, %s (CARD=%s,DEV=%d)",
cardname, devname, cardid, dev);
snprintf(device, sizeof(device), "%sCARD=%s,DEV=%d",
device_prefix, cardid, dev);
TRACE("Got device \"%s\", \"%s\"\n", name, device);
AL_STRING_INIT(entry.name);
AL_STRING_INIT(entry.device_name);
al_string_copy_cstr(&entry.name, name);
al_string_copy_cstr(&entry.device_name, device);
VECTOR_PUSH_BACK(*DeviceList, entry);
}
snd_ctl_close(handle);
next_card:
if(snd_card_next(&card) < 0) {
ERR("snd_card_next failed\n");
break;
}
}
snd_pcm_info_free(pcminfo);
snd_ctl_card_info_free(info);
}
void qjackctlInterfaceComboBox::populateModel (void)
{
bool bBlockSignals = QComboBox::blockSignals(true);
QComboBox::setUpdatesEnabled(false);
QComboBox::setDuplicatesEnabled(false);
QLineEdit *pLineEdit = QComboBox::lineEdit();
// FIXME: Only valid for ALSA, Sun and OSS devices,
// for the time being... and also CoreAudio ones too.
const QString& sDriver = m_pDriverComboBox->currentText();
bool bAlsa = (sDriver == "alsa");
bool bSun = (sDriver == "sun");
bool bOss = (sDriver == "oss");
#ifdef CONFIG_COREAUDIO
bool bCoreaudio = (sDriver == "coreaudio");
std::map<QString, AudioDeviceID> coreaudioIdMap;
#endif
#ifdef CONFIG_PORTAUDIO
bool bPortaudio = (sDriver == "portaudio");
#endif
QString sCurName = pLineEdit->text();
QString sName, sSubName;
int iCards = 0;
clearCards();
int iCurCard = -1;
if (bAlsa) {
#ifdef CONFIG_ALSA_SEQ
// Enumerate the ALSA cards and PCM harfware devices...
snd_ctl_t *handle;
snd_ctl_card_info_t *info;
snd_pcm_info_t *pcminfo;
snd_ctl_card_info_alloca(&info);
snd_pcm_info_alloca(&pcminfo);
const QString sPrefix("hw:%1");
const QString sSuffix(" (%1)");
const QString sSubSuffix("%1,%2");
QString sName2, sSubName2;
bool bCapture, bPlayback;
int iCard = -1;
while (snd_card_next(&iCard) >= 0 && iCard >= 0) {
sName = sPrefix.arg(iCard);
if (snd_ctl_open(&handle, sName.toUtf8().constData(), 0) >= 0
&& snd_ctl_card_info(handle, info) >= 0) {
sName2 = sPrefix.arg(snd_ctl_card_info_get_id(info));
addCard(sName2, snd_ctl_card_info_get_name(info) + sSuffix.arg(sName));
if (sCurName == sName || sCurName == sName2)
iCurCard = iCards;
++iCards;
int iDevice = -1;
while (snd_ctl_pcm_next_device(handle, &iDevice) >= 0
&& iDevice >= 0) {
// Capture devices..
bCapture = false;
if (m_iAudio == QJACKCTL_CAPTURE ||
m_iAudio == QJACKCTL_DUPLEX) {
snd_pcm_info_set_device(pcminfo, iDevice);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_CAPTURE);
bCapture = (snd_ctl_pcm_info(handle, pcminfo) >= 0);
}
// Playback devices..
bPlayback = false;
if (m_iAudio == QJACKCTL_PLAYBACK ||
m_iAudio == QJACKCTL_DUPLEX) {
snd_pcm_info_set_device(pcminfo, iDevice);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_PLAYBACK);
bPlayback = (snd_ctl_pcm_info(handle, pcminfo) >= 0);
}
// List iif compliant with the audio mode criteria...
if ((m_iAudio == QJACKCTL_CAPTURE && bCapture && !bPlayback) ||
(m_iAudio == QJACKCTL_PLAYBACK && !bCapture && bPlayback) ||
(m_iAudio == QJACKCTL_DUPLEX && bCapture && bPlayback)) {
sSubName = sSubSuffix.arg(sName).arg(iDevice);
sSubName2 = sSubSuffix.arg(sName2).arg(iDevice);
addCard(sSubName2, snd_pcm_info_get_name(pcminfo) + sSuffix.arg(sSubName));
if (sCurName == sSubName || sCurName == sSubName2)
iCurCard = iCards;
++iCards;
}
}
snd_ctl_close(handle);
}
}
#endif // CONFIG_ALSA_SEQ
}
else
if (bSun) {
QFile file("/var/run/dmesg.boot");
if (file.open(QIODevice::ReadOnly)) {
QTextStream stream(&file);
QString sLine;
QRegExp rxDevice("audio([0-9]) at (.*)");
while (!stream.atEnd()) {
sLine = stream.readLine();
if (rxDevice.exactMatch(sLine)) {
sName = "/dev/audio" + rxDevice.cap(1);
addCard(sName, rxDevice.cap(2));
if (sCurName == sName)
iCurCard = iCards;
++iCards;
}
}
file.close();
}
}
else
if (bOss) {
// Enumerate the OSS Audio devices...
QFile file("/dev/sndstat");
if (file.open(QIODevice::ReadOnly)) {
QTextStream stream(&file);
QString sLine;
bool bAudioDevices = false;
QRegExp rxHeader("Audio devices.*", Qt::CaseInsensitive);
QRegExp rxDevice("([0-9]+):[ ]+(.*)");
while (!stream.atEnd()) {
sLine = stream.readLine();
if (bAudioDevices) {
if (rxDevice.exactMatch(sLine)) {
sName = "/dev/dsp" + rxDevice.cap(1);
addCard(sName, rxDevice.cap(2));
if (sCurName == sName)
iCurCard = iCards;
++iCards;
}
else break;
}
else if (rxHeader.exactMatch(sLine))
bAudioDevices = true;
}
file.close();
}
}
#ifdef CONFIG_COREAUDIO
else if (bCoreaudio) {
// Find out how many Core Audio devices are there, if any...
// (code snippet gently "borrowed" from Stephane Letz jackdmp;)
OSStatus err;
Boolean isWritable;
UInt32 outSize = sizeof(isWritable);
err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices,
&outSize, &isWritable);
if (err == noErr) {
// Calculate the number of device available...
int numCoreDevices = outSize / sizeof(AudioDeviceID);
// Make space for the devices we are about to get...
AudioDeviceID *coreDeviceIDs = new AudioDeviceID [numCoreDevices];
err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices,
&outSize, (void *) coreDeviceIDs);
if (err == noErr) {
// Look for the CoreAudio device name...
char coreDeviceName[256];
UInt32 nameSize = 256;
for (int i = 0; i < numCoreDevices; i++) {
err = AudioDeviceGetPropertyInfo(coreDeviceIDs[i],
0, true, kAudioDevicePropertyDeviceName,
&outSize, &isWritable);
if (err == noErr) {
err = AudioDeviceGetProperty(coreDeviceIDs[i],
0, true, kAudioDevicePropertyDeviceName,
&nameSize, (void *) coreDeviceName);
if (err == noErr) {
char drivername[128];
UInt32 dnsize = 128;
// this returns the unique id for the device
// that must be used on the commandline for jack
if (getDeviceUIDFromID(coreDeviceIDs[i],
drivername, dnsize) == noErr) {
sName = drivername;
} else {
sName = "Error";
}
coreaudioIdMap[sName] = coreDeviceIDs[i];
// TODO: hide this ugly ID from the user,
// only show human readable name
// humanreadable \t UID
sSubName = QString(coreDeviceName);
addCard(sSubName, sName);
if (sCurName == sName || sCurName == sSubName)
iCurCard = iCards;
++iCards;
}
}
}
}
delete [] coreDeviceIDs;
}
}
#endif // CONFIG_COREAUDIO
#ifdef CONFIG_PORTAUDIO
else if (bPortaudio) {
if (Pa_Initialize() == paNoError) {
// Fill hostapi info...
PaHostApiIndex iNumHostApi = Pa_GetHostApiCount();
QString *pHostName = new QString[iNumHostApi];
for (PaHostApiIndex i = 0; i < iNumHostApi; ++i)
pHostName[i] = QString(Pa_GetHostApiInfo(i)->name);
// Fill device info...
PaDeviceIndex iNumDevice = Pa_GetDeviceCount();
PaDeviceInfo **ppDeviceInfo = new PaDeviceInfo * [iNumDevice];
for (PaDeviceIndex i = 0; i < iNumDevice; ++i) {
ppDeviceInfo[i] = const_cast<PaDeviceInfo *> (Pa_GetDeviceInfo(i));
sName = pHostName[ppDeviceInfo[i]->hostApi] + "::" + QString(ppDeviceInfo[i]->name);
addCard(sName, QString());
if (sCurName == sName)
iCurCard = iCards;
++iCards;
}
Pa_Terminate();
}
}
#endif // CONFIG_PORTAUDIO
addCard(m_sDefName, QString());
if (sCurName == m_sDefName || sCurName.isEmpty())
iCurCard = iCards;
++iCards;
QTreeView *pTreeView = static_cast<QTreeView *> (QComboBox::view());
pTreeView->setMinimumWidth(
pTreeView->sizeHint().width() + QComboBox::iconSize().width());
QComboBox::setCurrentIndex(iCurCard);
pLineEdit->setText(sCurName);
QComboBox::setUpdatesEnabled(true);
QComboBox::blockSignals(bBlockSignals);
}
static
jack_driver_param_constraint_desc_t *
enum_alsa_devices()
{
snd_ctl_t * handle;
snd_ctl_card_info_t * info;
snd_pcm_info_t * pcminfo_capture;
snd_pcm_info_t * pcminfo_playback;
int card_no = -1;
char card_id[JACK_DRIVER_PARAM_STRING_MAX + 1];
char device_id[JACK_DRIVER_PARAM_STRING_MAX + 1];
char description[64];
int device_no;
bool has_capture;
bool has_playback;
jack_driver_param_constraint_desc_t * constraint_ptr;
uint32_t array_size = 0;
snd_ctl_card_info_alloca(&info);
snd_pcm_info_alloca(&pcminfo_capture);
snd_pcm_info_alloca(&pcminfo_playback);
constraint_ptr = NULL;
while(snd_card_next(&card_no) >= 0 && card_no >= 0)
{
snprintf(card_id, sizeof(card_id), "hw:%d", card_no);
if (snd_ctl_open(&handle, card_id, 0) >= 0 &&
snd_ctl_card_info(handle, info) >= 0)
{
fill_device(&constraint_ptr, &array_size, card_id, snd_ctl_card_info_get_name(info));
device_no = -1;
while (snd_ctl_pcm_next_device(handle, &device_no) >= 0 && device_no != -1)
{
snprintf(device_id, sizeof(device_id), "%s,%d", card_id, device_no);
snd_pcm_info_set_device(pcminfo_capture, device_no);
snd_pcm_info_set_subdevice(pcminfo_capture, 0);
snd_pcm_info_set_stream(pcminfo_capture, SND_PCM_STREAM_CAPTURE);
has_capture = snd_ctl_pcm_info(handle, pcminfo_capture) >= 0;
snd_pcm_info_set_device(pcminfo_playback, device_no);
snd_pcm_info_set_subdevice(pcminfo_playback, 0);
snd_pcm_info_set_stream(pcminfo_playback, SND_PCM_STREAM_PLAYBACK);
has_playback = snd_ctl_pcm_info(handle, pcminfo_playback) >= 0;
if (has_capture && has_playback)
{
snprintf(description, sizeof(description),"%s (duplex)", snd_pcm_info_get_name(pcminfo_capture));
}
else if (has_capture)
{
snprintf(description, sizeof(description),"%s (capture)", snd_pcm_info_get_name(pcminfo_capture));
}
else if (has_playback)
{
snprintf(description, sizeof(description),"%s (playback)", snd_pcm_info_get_name(pcminfo_playback));
}
else
{
continue;
}
fill_device(&constraint_ptr, &array_size, device_id, description);
}
snd_ctl_close(handle);
}
}
return constraint_ptr;
}
static void device_list(snd_pcm_stream_t stream)
{
snd_ctl_t *handle;
int card, err, dev, idx;
snd_ctl_card_info_t *info;
snd_pcm_info_t *pcminfo;
snd_ctl_card_info_alloca(&info);
snd_pcm_info_alloca(&pcminfo);
card = -1;
if (snd_card_next(&card) < 0 || card < 0) {
error(_("no soundcards found..."));
return;
}
printf(_("**** List of %s Hardware Devices ****\n"),
snd_pcm_stream_name(stream));
while (card >= 0) {
char name[32];
sprintf(name, "hw:%d", card);
if ((err = snd_ctl_open(&handle, name, 0)) < 0) {
error("control open (%i): %s", card, snd_strerror(err));
goto next_card;
}
if ((err = snd_ctl_card_info(handle, info)) < 0) {
error("control hardware info (%i): %s", card, snd_strerror(err));
snd_ctl_close(handle);
goto next_card;
}
dev = -1;
while (1) {
unsigned int count;
if (snd_ctl_pcm_next_device(handle, &dev)<0)
error("snd_ctl_pcm_next_device");
if (dev < 0)
break;
snd_pcm_info_set_device(pcminfo, dev);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, stream);
if ((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
if (err != -ENOENT)
error("control digital audio info (%i): %s", card, snd_strerror(err));
continue;
}
printf(_("card %i: [%s,%i] %s [%s], device %i: %s [%s]\n"),
card, name, dev, snd_ctl_card_info_get_id(info), snd_ctl_card_info_get_name(info),
dev,
snd_pcm_info_get_id(pcminfo),
snd_pcm_info_get_name(pcminfo));
count = snd_pcm_info_get_subdevices_count(pcminfo);
printf( _(" Subdevices: %i/%i\n"),
snd_pcm_info_get_subdevices_avail(pcminfo), count);
for (idx = 0; idx < (int)count; idx++) {
snd_pcm_info_set_subdevice(pcminfo, idx);
if ((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
error("control digital audio playback info (%i): %s", card, snd_strerror(err));
} else {
printf(_(" Subdevice #%i: %s\n"),
idx, snd_pcm_info_get_subdevice_name(pcminfo));
}
}
}
snd_ctl_close(handle);
next_card:
if (snd_card_next(&card) < 0) {
error("snd_card_next");
break;
}
}
}
void bg_alsa_create_card_parameters(bg_parameter_info_t * ret,
int record)
{
snd_ctl_card_info_t *info;
snd_ctl_t *handle;
snd_pcm_info_t *pcminfo;
snd_pcm_stream_t stream;
int err;
int card, dev;
stream = record ? SND_PCM_STREAM_CAPTURE : SND_PCM_STREAM_PLAYBACK;
ret->name = gavl_strdup("card");
ret->long_name = gavl_strdup(TRS("Card"));
ret->type = BG_PARAMETER_STRINGLIST;
snd_ctl_card_info_malloc(&info);
card = -1;
if (snd_card_next(&card) < 0 || card < 0)
{
bg_log(BG_LOG_ERROR, LOG_DOMAIN, "No soundcards found");
return;
}
/* Default is always supported */
ret->val_default.val_str = gavl_strdup("default");
append_card(ret, gavl_strdup("default"),
gavl_strdup(TRS("Default")));
while (card >= 0)
{
char name[32];
sprintf(name, "hw:%d", card);
if ((err = snd_ctl_open(&handle, name, 0)) < 0)
{
bg_log(BG_LOG_ERROR, LOG_DOMAIN,
"control open failed (%i): %s",
card, snd_strerror(err));
goto next_card;
}
if ((err = snd_ctl_card_info(handle, info)) < 0)
{
bg_log(BG_LOG_ERROR, LOG_DOMAIN,
"control hardware info failed (%i): %s",
card, snd_strerror(err));
snd_ctl_close(handle);
goto next_card;
}
dev = -1;
while (1)
{
char * name, *label;
snd_pcm_info_malloc(&pcminfo);
if (snd_ctl_pcm_next_device(handle, &dev)<0)
{
bg_log(BG_LOG_ERROR, LOG_DOMAIN, "snd_ctl_pcm_next_device failed");
snd_pcm_info_free(pcminfo);
break;
}
if (dev < 0)
{
snd_pcm_info_free(pcminfo);
break;
}
snd_pcm_info_set_device(pcminfo, dev);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, stream);
if ((err = snd_ctl_pcm_info(handle, pcminfo)) < 0)
{
if (err != -ENOENT)
bg_log(BG_LOG_ERROR, LOG_DOMAIN,
"control digital audio info failed (%i): %s",
card, snd_strerror(err));
snd_pcm_info_free(pcminfo);
continue;
}
name = bg_sprintf("hw:%d,%d", card, dev);
label = gavl_strdup(snd_pcm_info_get_name(pcminfo));
append_card(ret, name, label);
snd_pcm_info_free(pcminfo);
}
snd_ctl_close(handle);
next_card:
if (snd_card_next(&card) < 0)
break;
}
snd_ctl_card_info_free(info);
}
/* returns the card name when the device number is unknown or -1 */
static gchar *
gst_alsa_find_device_name_no_handle (GstObject * obj, const gchar * devcard,
gint device_num, snd_pcm_stream_t stream)
{
snd_ctl_card_info_t *info = NULL;
snd_ctl_t *ctl = NULL;
gchar *ret = NULL;
gint dev = -1;
GST_LOG_OBJECT (obj, "[%s] device=%d", devcard, device_num);
if (snd_ctl_open (&ctl, devcard, 0) < 0)
return NULL;
snd_ctl_card_info_malloc (&info);
if (snd_ctl_card_info (ctl, info) < 0)
goto done;
if (device_num != -1) {
while (snd_ctl_pcm_next_device (ctl, &dev) == 0 && dev >= 0) {
if (dev == device_num) {
snd_pcm_info_t *pcminfo;
snd_pcm_info_malloc (&pcminfo);
snd_pcm_info_set_device (pcminfo, dev);
snd_pcm_info_set_subdevice (pcminfo, 0);
snd_pcm_info_set_stream (pcminfo, stream);
if (snd_ctl_pcm_info (ctl, pcminfo) < 0) {
snd_pcm_info_free (pcminfo);
break;
}
ret = (gchar *) snd_pcm_info_get_name (pcminfo);
if (ret) {
ret = g_strdup (ret);
GST_LOG_OBJECT (obj, "name from pcminfo: %s", ret);
}
snd_pcm_info_free (pcminfo);
if (ret)
break;
}
}
}
if (ret == NULL) {
char *name = NULL;
gint card;
GST_LOG_OBJECT (obj, "trying card name");
card = snd_ctl_card_info_get_card (info);
snd_card_get_name (card, &name);
ret = g_strdup (name);
free (name);
}
done:
snd_ctl_card_info_free (info);
snd_ctl_close (ctl);
return ret;
}
