Initial commit.

2018-02-27 18:06:05 +01:00
parent 85d9664df7
commit b2b1ba7abe
1393 changed files with 177311 additions and 1 deletions
--- a/src/engine/alsadevicefinder.cpp
+++ b/src/engine/alsadevicefinder.cpp
@@ -0,0 +1,118 @@
+/*
+ * Strawberry Music Player
+ * Copyright 2017, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <QFile>
+#include <alsa/asoundlib.h>
+
+#include "alsadevicefinder.h"
+
+#include <core/logging.h>
+
+AlsaDeviceFinder::AlsaDeviceFinder()
+    : DeviceFinder("alsa") {
+
+}
+
+QList<DeviceFinder::Device> AlsaDeviceFinder::ListDevices() {
+
+  QList<Device> ret;
+
+  //register int err;
+  int card = -1;
+  int dev = -1;
+  int result = -1;
+  snd_ctl_card_info_t *cardinfo;
+  snd_pcm_info_t *pcminfo;
+  snd_ctl_t *handle;
+
+  snd_ctl_card_info_alloca(&cardinfo);
+  snd_pcm_info_alloca(&pcminfo);
+
+  card = -1;
+
+  snd_pcm_stream_name(SND_PCM_STREAM_PLAYBACK);
+
+  while (true) {
+
+    result = snd_card_next(&card);
+    if (result < 0) {
+      qLog(Error) << "Unable to get soundcard: " << snd_strerror(result);
+      return ret;
+    }
+    if (card < 0) return ret;
+
+    char name[32];
+    sprintf(name, "hw:%d", card);
+    result = snd_ctl_open(&handle, name, 0);
+    if (result < 0) {
+      qLog(Error) << "Unable to open soundcard " << card << ": " << snd_strerror(result);
+      continue;
+    }
+    result = snd_ctl_card_info(handle, cardinfo);
+    if (result < 0) {
+      qLog(Error) << "Control hardware failure for card " << card << ": " << snd_strerror(result);
+      snd_ctl_close(handle);
+      continue;
+    }
+
+    dev = -1;
+    while (true) {
+
+      result = snd_ctl_pcm_next_device(handle, &dev);
+      if (result < 0) {
+	qLog(Error) << "Unable to get PCM for card " << card << ": " << snd_strerror(result);
+	continue;
+      }
+      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);
+      result = snd_ctl_pcm_info(handle, pcminfo);
+      if (result < 0) {
+        if (result != -ENOENT) qLog(Error) << "Unable to get control digital audio info for card " << card << ": " << snd_strerror(result);
+        continue;
+      }
+
+      snd_pcm_info_get_name(pcminfo);
+
+      Device device;
+      device.card = card;
+      device.device = dev;
+      device.description = QString("%1 %2").arg(snd_ctl_card_info_get_name(cardinfo)).arg(snd_pcm_info_get_name(pcminfo));
+      device.string = QString("hw:%1,%2").arg(card).arg(dev);
+      device.device_property_value = QString("hw:%1,%2").arg(card).arg(dev);
+      device.iconname = GuessIconName("", device.description);
+      ret.append(device);
+
+    }
+    snd_ctl_close(handle);
+  }
+
+  snd_pcm_info_free(pcminfo); pcminfo = NULL;
+  snd_ctl_card_info_free(cardinfo); cardinfo = NULL;
+
+  snd_config_update_free_global();
+
+  return ret;
+}