diff options
Diffstat (limited to 'ext/alsa/gstalsadeviceprobe.c')
| -rw-r--r-- | ext/alsa/gstalsadeviceprobe.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/ext/alsa/gstalsadeviceprobe.c b/ext/alsa/gstalsadeviceprobe.c deleted file mode 100644 index 83596a3f..00000000 --- a/ext/alsa/gstalsadeviceprobe.c +++ /dev/null @@ -1,210 +0,0 @@ -/* Copyright (C) 2001 CodeFactory AB - * Copyright (C) 2001 Thomas Nyberg <thomas@codefactory.se> - * Copyright (C) 2001-2002 Andy Wingo <apwingo@eos.ncsu.edu> - * Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de> - * Copyright (C) 2005 Tim-Philipp Müller <tim centricular net> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "gstalsadeviceprobe.h" -#include "gst/interfaces/propertyprobe.h" - -static const GList * -gst_alsa_device_property_probe_get_properties (GstPropertyProbe * probe) -{ - GObjectClass *klass = G_OBJECT_GET_CLASS (probe); - static GList *list = NULL; - - /* well, not perfect, but better than no locking at all. - * In the worst case we leak a list node, so who cares? */ - GST_CLASS_LOCK (GST_OBJECT_CLASS (klass)); - - if (!list) { - GParamSpec *pspec; - - pspec = g_object_class_find_property (klass, "device"); - list = g_list_append (NULL, pspec); - } - - GST_CLASS_UNLOCK (GST_OBJECT_CLASS (klass)); - - return list; -} - -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 void -gst_alsa_device_property_probe_probe_property (GstPropertyProbe * probe, - guint prop_id, const GParamSpec * pspec) -{ - if (!g_str_equal (pspec->name, "device")) { - G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec); - } -} - -static gboolean -gst_alsa_device_property_probe_needs_probe (GstPropertyProbe * probe, - guint prop_id, const GParamSpec * pspec) -{ - /* don't cache probed data */ - return TRUE; -} - -static GValueArray * -gst_alsa_device_property_probe_get_values (GstPropertyProbe * probe, - guint prop_id, const GParamSpec * pspec) -{ - GstElementClass *klass; - const GList *templates; - snd_pcm_stream_t mode = -1; - GValueArray *array; - GValue value = { 0, }; - GList *l, *list; - - if (!g_str_equal (pspec->name, "device")) { - G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec); - return NULL; - } - - klass = GST_ELEMENT_GET_CLASS (GST_ELEMENT (probe)); - - /* I'm pretty sure ALSA has a good way to do this. However, their cool - * auto-generated documentation is pretty much useless if you try to - * do function-wise look-ups. */ - /* we assume one pad template at max [zero=mixer] */ - templates = gst_element_class_get_pad_template_list (klass); - if (templates) { - if (GST_PAD_TEMPLATE_DIRECTION (templates->data) == GST_PAD_SRC) - mode = SND_PCM_STREAM_CAPTURE; - else - mode = SND_PCM_STREAM_PLAYBACK; - } - - list = gst_alsa_get_device_list (mode); - - if (list == NULL) { - GST_LOG_OBJECT (probe, "No devices found"); - return NULL; - } - - array = g_value_array_new (g_list_length (list)); - g_value_init (&value, G_TYPE_STRING); - for (l = list; l != NULL; l = l->next) { - GST_LOG_OBJECT (probe, "Found device: %s", (gchar *) l->data); - g_value_take_string (&value, (gchar *) l->data); - l->data = NULL; - g_value_array_append (array, &value); - } - g_value_unset (&value); - g_list_free (list); - - return array; -} - -static void -gst_alsa_property_probe_interface_init (GstPropertyProbeInterface * iface) -{ - iface->get_properties = gst_alsa_device_property_probe_get_properties; - iface->probe_property = gst_alsa_device_property_probe_probe_property; - iface->needs_probe = gst_alsa_device_property_probe_needs_probe; - iface->get_values = gst_alsa_device_property_probe_get_values; -} - -void -gst_alsa_type_add_device_property_probe_interface (GType type) -{ - static const GInterfaceInfo probe_iface_info = { - (GInterfaceInitFunc) gst_alsa_property_probe_interface_init, - NULL, - NULL, - }; - - g_type_add_interface_static (type, GST_TYPE_PROPERTY_PROBE, - &probe_iface_info); -} |