Populate and show a combo box of available ALSA cards and devices
Shows a combo box with the available ALSA cards and devices instead of a line edit. The problem currently is that the widgets are nested classes of AudioDevice and therefore the macro Q_OBJECT does not work which means that its not possible to define slots that react to retrieved signals.
This commit is contained in:
Michael Gregorius
@@ -37,6 +37,7 @@
|
||||
#include "AudioDevice.h"
|
||||
|
||||
|
||||
class QComboBox;
|
||||
class LcdSpinBox;
|
||||
class QLineEdit;
|
||||
|
||||
@@ -64,7 +65,11 @@ public:
|
||||
|
||||
virtual void saveSettings();
|
||||
|
||||
public slots:
|
||||
void onCurrentIndexChanged(int index);
|
||||
|
||||
private:
|
||||
QComboBox * m_deviceComboBox;
|
||||
QLineEdit * m_device;
|
||||
LcdSpinBox * m_channels;
|
||||
|
||||
|
||||
@@ -22,6 +22,7 @@
|
||||
*
|
||||
*/
|
||||
|
||||
#include <QComboBox>
|
||||
#include <QLineEdit>
|
||||
#include <QLabel>
|
||||
|
||||
@@ -36,6 +37,8 @@
|
||||
#include "gui_templates.h"
|
||||
#include "templates.h"
|
||||
|
||||
#include <iostream>
|
||||
#include <vector>
|
||||
|
||||
|
||||
AudioAlsa::AudioAlsa( bool & _success_ful, Mixer* _mixer ) :
|
||||
@@ -493,13 +496,253 @@ int AudioAlsa::setSWParams()
|
||||
|
||||
|
||||
|
||||
void testPrintCards()
|
||||
{
|
||||
std::cout << "Listing cards: " << std::endl;
|
||||
char **hints;
|
||||
|
||||
/* Enumerate sound devices */
|
||||
int err = snd_device_name_hint(-1, "pcm", (void***)&hints);
|
||||
if (err != 0)
|
||||
return;//Error! Just return
|
||||
|
||||
char** n = hints;
|
||||
while (*n != NULL) {
|
||||
|
||||
char *name = snd_device_name_get_hint(*n, "NAME");
|
||||
|
||||
if (name != NULL && 0 != strcmp("null", name)) {
|
||||
//Copy name to another buffer and then free it
|
||||
std::cout << "Name: " << name << std::endl;
|
||||
|
||||
free(name);
|
||||
}
|
||||
|
||||
char *description = snd_device_name_get_hint(*n, "DESC");
|
||||
|
||||
if (description != NULL && 0 != strcmp("null", name)) {
|
||||
//Copy name to another buffer and then free it
|
||||
std::cout << "Description: " << description << std::endl;
|
||||
|
||||
free(description);
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cout << "No description" << std::endl;
|
||||
}
|
||||
|
||||
std::cout << std::endl;
|
||||
|
||||
n++;
|
||||
}//End of while
|
||||
|
||||
//Free hint buffer too
|
||||
snd_device_name_free_hint((void**)hints);
|
||||
}
|
||||
|
||||
|
||||
|
||||
void device_list(void)
|
||||
{
|
||||
snd_pcm_stream_t stream = SND_PCM_STREAM_PLAYBACK;
|
||||
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) {
|
||||
return;
|
||||
}
|
||||
std::cout << "**** List of " << snd_pcm_stream_name(stream) << " Hardware Devices ****\n";
|
||||
|
||||
while (card >= 0) {
|
||||
char name[32];
|
||||
sprintf(name, "hw:%d", card);
|
||||
if ((err = snd_ctl_open(&handle, name, 0)) < 0) {
|
||||
// TODO Error handling
|
||||
//error("control open (%i): %s", card, snd_strerror(err));
|
||||
goto next_card;
|
||||
}
|
||||
if ((err = snd_ctl_card_info(handle, info)) < 0) {
|
||||
// TODO Error handling
|
||||
//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)
|
||||
// TODO Error handling
|
||||
//error("snd_ctl_pcm_next_device");
|
||||
std::cerr << "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)
|
||||
// TODO Error handling
|
||||
//error("control digital audio info (%i): %s", card, snd_strerror(err));
|
||||
std::cerr << "Error\n";
|
||||
continue;
|
||||
}
|
||||
//std::cout << "card " << card << ": " << snd_ctl_card_info_get_id(info) << " [" << snd_ctl_card_info_get_name(info) << "], device " << dev <<
|
||||
// ": " << snd_pcm_info_get_id(pcminfo) << " [" << snd_pcm_info_get_name(pcminfo) << "]\n";
|
||||
std::cout << "card hw" << card << ":" << dev << " - " << "[" << snd_ctl_card_info_get_name(info) << "/" << snd_pcm_info_get_name(pcminfo) << "], " <<
|
||||
snd_ctl_card_info_get_id(info) << "," << snd_pcm_info_get_id(pcminfo) << "\n";
|
||||
|
||||
count = snd_pcm_info_get_subdevices_count(pcminfo);
|
||||
std::cout << " Subdevices: " << snd_pcm_info_get_subdevices_avail(pcminfo) << "/" << count << std::endl;
|
||||
for (idx = 0; idx < (int)count; idx++) {
|
||||
snd_pcm_info_set_subdevice(pcminfo, idx);
|
||||
if ((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
|
||||
// TODO Error handling
|
||||
//error("control digital audio playback info (%i): %s", card, snd_strerror(err));
|
||||
std::cerr << "Error\n";
|
||||
} else {
|
||||
std::cout << " Subdevice #" << idx << ": " << snd_pcm_info_get_subdevice_name(pcminfo) << std::endl;
|
||||
}
|
||||
}
|
||||
}
|
||||
snd_ctl_close(handle);
|
||||
next_card:
|
||||
if (snd_card_next(&card) < 0) {
|
||||
// TODO Error handling
|
||||
//error("snd_card_next");
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
class DeviceInfo
|
||||
{
|
||||
public:
|
||||
DeviceInfo(int cardNumber, int deviceNumber,
|
||||
QString const & cardName, QString const & pcmName,
|
||||
QString const & cardId, QString const & pcmId) :
|
||||
m_cardNumber(cardNumber),
|
||||
m_deviceNumber(deviceNumber),
|
||||
m_cardName(cardName),
|
||||
m_pcmName(pcmName),
|
||||
m_cardId(cardId),
|
||||
m_pcmId(pcmId)
|
||||
{}
|
||||
~DeviceInfo() {}
|
||||
|
||||
int getCardNumber() const { return m_cardNumber; }
|
||||
int getDeviceNumber() const { return m_deviceNumber; }
|
||||
QString const & getCardName() const { return m_cardName; }
|
||||
QString const & getPcmName() const { return m_pcmName; }
|
||||
QString const & getCardId() const { return m_cardId; }
|
||||
QString const & getPcmId() const { return m_pcmId; }
|
||||
|
||||
QString getHWString() const { return QString("hw%1:%2").arg(m_cardNumber).arg(m_deviceNumber); }
|
||||
|
||||
private:
|
||||
int m_cardNumber;
|
||||
int m_deviceNumber;
|
||||
QString m_cardName;
|
||||
QString m_pcmName;
|
||||
QString m_cardId;
|
||||
QString m_pcmId;
|
||||
};
|
||||
|
||||
|
||||
|
||||
void populateDeviceInfos(std::vector<DeviceInfo> &deviceInfos)
|
||||
{
|
||||
snd_pcm_stream_t stream = SND_PCM_STREAM_PLAYBACK;
|
||||
snd_ctl_t *handle;
|
||||
snd_ctl_card_info_t *info;
|
||||
snd_pcm_info_t *pcminfo;
|
||||
|
||||
// Allocate memory for the info structs
|
||||
snd_ctl_card_info_alloca(&info);
|
||||
snd_pcm_info_alloca(&pcminfo);
|
||||
|
||||
int card = -1;
|
||||
|
||||
while (!snd_card_next(&card) && card >= 0)
|
||||
{
|
||||
std::cout << "Card: " << card << " found!" << std::endl;
|
||||
|
||||
char name[32];
|
||||
sprintf(name, "hw:%d", card);
|
||||
|
||||
if (snd_ctl_open(&handle, name, 0) < 0)
|
||||
{
|
||||
std::cerr << "Error opening ALSA card " << name << std::endl;
|
||||
continue;
|
||||
}
|
||||
if (snd_ctl_card_info(handle, info) < 0)
|
||||
{
|
||||
snd_ctl_close(handle);
|
||||
std::cerr << "Could not retrieve info for ALSA card " << name << std::endl;
|
||||
continue;
|
||||
}
|
||||
|
||||
int dev = -1;
|
||||
|
||||
while (!snd_ctl_pcm_next_device(handle, &dev) && dev >= 0)
|
||||
{
|
||||
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))
|
||||
{
|
||||
QString cardName(snd_ctl_card_info_get_name(info));
|
||||
QString pcmName(snd_pcm_info_get_name(pcminfo));
|
||||
QString cardId(snd_ctl_card_info_get_id(info));
|
||||
QString pcmId(snd_pcm_info_get_id(pcminfo));
|
||||
|
||||
DeviceInfo currentDevice(card, dev, cardName, pcmName, cardId, pcmId);
|
||||
deviceInfos.push_back(currentDevice);
|
||||
|
||||
std::cout << "card hw" << card << ":" << dev << " - " << "[" << snd_ctl_card_info_get_name(info) << "/" << snd_pcm_info_get_name(pcminfo) << "], " <<
|
||||
snd_ctl_card_info_get_id(info) << "," << snd_pcm_info_get_id(pcminfo) << std::endl;
|
||||
}
|
||||
}
|
||||
|
||||
snd_ctl_close(handle);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
AudioAlsa::setupWidget::setupWidget( QWidget * _parent ) :
|
||||
AudioDevice::setupWidget( AudioAlsa::name(), _parent )
|
||||
{
|
||||
m_device = new QLineEdit( AudioAlsa::probeDevice(), this );
|
||||
m_device->setGeometry( 10, 20, 160, 20 );
|
||||
typedef std::vector<DeviceInfo> DeviceInfoCollection;
|
||||
DeviceInfoCollection deviceInfos;
|
||||
populateDeviceInfos(deviceInfos);
|
||||
|
||||
// Implements the "-l" from aplay
|
||||
//device_list();
|
||||
|
||||
//testPrintCards();
|
||||
|
||||
m_deviceComboBox = new QComboBox(this);
|
||||
for (size_t i = 0; i < deviceInfos.size(); ++i)
|
||||
{
|
||||
DeviceInfo const & currentDeviceInfo = deviceInfos[i];
|
||||
QString comboBoxText = currentDeviceInfo.getHWString() + " [" + currentDeviceInfo.getCardName() + " | " + currentDeviceInfo.getPcmName() + "]";
|
||||
m_deviceComboBox->addItem(comboBoxText, QVariant(static_cast<uint>(i)));
|
||||
m_deviceComboBox->setItemData(i, comboBoxText, Qt::ToolTipRole);
|
||||
}
|
||||
|
||||
m_deviceComboBox->setGeometry( 10, 20, 160, 20 );
|
||||
connect(m_deviceComboBox, SIGNAL(currentIndexChanged(int)), SLOT(onCurrentIndexChanged(int)));
|
||||
|
||||
//m_device = new QLineEdit( AudioAlsa::probeDevice(), this );
|
||||
//m_device->setGeometry( 10, 20, 160, 20 );
|
||||
|
||||
QLabel * dev_lbl = new QLabel( tr( "DEVICE" ), this );
|
||||
dev_lbl->setFont( pointSize<7>( dev_lbl->font() ) );
|
||||
@@ -538,5 +781,11 @@ void AudioAlsa::setupWidget::saveSettings()
|
||||
}
|
||||
|
||||
|
||||
#endif
|
||||
|
||||
void AudioAlsa::setupWidget::onCurrentIndexChanged(int index)
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user