[2070] | 1 | //roarmixer.c: |
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| 2 | /* GStreamer |
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| 3 | * Copyright (C) <2005> Arwed v. Merkatz <v.merkatz@gmx.net> |
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| 4 | * Copyright (C) <2008> Philipp 'ph3-der-loewe' Schafft |
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| 5 | * Copyright (C) <2009> Philipp 'ph3-der-loewe' Schafft |
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| 6 | * <lion@lion.leolix.org> |
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| 7 | * |
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| 8 | * roarmixer.h: an RoarAudio audio mixer |
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| 9 | * |
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| 10 | * This library is free software; you can redistribute it and/or |
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| 11 | * modify it under the terms of the GNU Library General Public |
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| 12 | * License as published by the Free Software Foundation; either |
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| 13 | * version 2 of the License, or (at your option) any later version. |
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| 14 | * |
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| 15 | * This library is distributed in the hope that it will be useful, |
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 18 | * Library General Public License for more details. |
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| 19 | * |
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| 20 | * You should have received a copy of the GNU Library General Public |
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| 21 | * License along with this library; if not, write to the |
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| 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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| 23 | * Boston, MA 02111-1307, USA. |
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| 24 | */ |
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| 25 | |
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| 26 | |
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| 27 | #include "roarmixer.h" |
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| 28 | |
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[2073] | 29 | GST_DEBUG_CATEGORY_EXTERN (roar_debug); |
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| 30 | #define GST_CAT_DEFAULT roar_debug |
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| 31 | |
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| 32 | enum |
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| 33 | { |
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| 34 | PROP_DEVICE_NAME = 1 |
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| 35 | }; |
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| 36 | |
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| 37 | |
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| 38 | static const GstElementDetails gst_roar_mixer_element_details = |
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| 39 | GST_ELEMENT_DETAILS ("RoarAudio Mixer", |
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| 40 | "Generic/Audio", |
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| 41 | "Control sound input and output levels with RoarAudio", |
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| 42 | "Philipp 'ph3-der-loewe' Schafft <lion@lion.leolix.org>"); |
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| 43 | |
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| 44 | GST_BOILERPLATE_WITH_INTERFACE (GstRoarMixerElement, gst_roar_mixer_element, |
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| 45 | GstElement, GST_TYPE_ELEMENT, GstMixer, GST_TYPE_MIXER, |
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| 46 | gst_roar_mixer_element); |
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| 47 | |
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| 48 | GST_IMPLEMENT_ROAR_MIXER_METHODS (GstRoarMixerElement, gst_roar_mixer_element); |
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| 49 | |
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| 50 | static GstStateChangeReturn gst_roar_mixer_element_change_state (GstElement * |
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| 51 | element, GstStateChange transition); |
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| 52 | |
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| 53 | static void gst_roar_mixer_element_get_property (GObject * object, |
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| 54 | guint prop_id, GValue * value, GParamSpec * pspec); |
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| 55 | |
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| 56 | static void |
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| 57 | gst_roar_mixer_element_base_init (gpointer klass) |
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| 58 | { |
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| 59 | gst_element_class_set_details (GST_ELEMENT_CLASS (klass), |
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| 60 | &gst_roar_mixer_element_details); |
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| 61 | } |
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| 62 | |
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| 63 | static void |
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| 64 | gst_roar_mixer_element_class_init (GstRoarMixerElementClass * klass) |
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| 65 | { |
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| 66 | GstElementClass *element_class; |
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| 67 | GObjectClass *gobject_class; |
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| 68 | |
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| 69 | element_class = (GstElementClass *) klass; |
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| 70 | gobject_class = (GObjectClass *) klass; |
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| 71 | |
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| 72 | gobject_class->get_property = gst_roar_mixer_element_get_property; |
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| 73 | |
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| 74 | g_object_class_install_property (gobject_class, PROP_DEVICE_NAME, |
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| 75 | g_param_spec_string ("device-name", "Device name", |
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| 76 | "Human-readable name of the sound device", "", G_PARAM_READABLE)); |
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| 77 | |
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| 78 | element_class->change_state = |
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| 79 | GST_DEBUG_FUNCPTR (gst_roar_mixer_element_change_state); |
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| 80 | } |
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| 81 | |
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| 82 | static void |
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| 83 | gst_roar_mixer_element_init (GstRoarMixerElement * this, |
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| 84 | GstRoarMixerElementClass * g_class) |
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| 85 | { |
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| 86 | this->mixer = NULL; |
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| 87 | } |
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| 88 | |
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| 89 | static void |
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| 90 | gst_roar_mixer_element_get_property (GObject * object, guint prop_id, |
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| 91 | GValue * value, GParamSpec * pspec) |
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| 92 | { |
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| 93 | GstRoarMixerElement *this = GST_ROAR_MIXER_ELEMENT (object); |
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| 94 | |
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| 95 | switch (prop_id) { |
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| 96 | case PROP_DEVICE_NAME: |
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| 97 | if (this->mixer) { |
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| 98 | g_value_set_string (value, this->mixer->cardname); |
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| 99 | } else { |
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| 100 | g_value_set_string (value, NULL); |
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| 101 | } |
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| 102 | break; |
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| 103 | default: |
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| 104 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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| 105 | break; |
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| 106 | } |
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| 107 | } |
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| 108 | |
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| 109 | static GstStateChangeReturn |
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| 110 | gst_roar_mixer_element_change_state (GstElement * element, |
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| 111 | GstStateChange transition) |
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| 112 | { |
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| 113 | GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; |
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| 114 | GstRoarMixerElement *this = GST_ROAR_MIXER_ELEMENT (element); |
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| 115 | |
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| 116 | switch (transition) { |
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| 117 | case GST_STATE_CHANGE_NULL_TO_READY: |
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| 118 | if (!this->mixer) { |
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| 119 | this->mixer = gst_roarmixer_new ("/dev/mixer", GST_ROAR_MIXER_ALL); |
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| 120 | } |
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| 121 | break; |
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| 122 | break; |
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| 123 | default: |
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| 124 | break; |
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| 125 | } |
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| 126 | |
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| 127 | ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); |
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| 128 | if (ret == GST_STATE_CHANGE_FAILURE) |
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| 129 | return ret; |
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| 130 | |
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| 131 | switch (transition) { |
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| 132 | case GST_STATE_CHANGE_READY_TO_NULL: |
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| 133 | if (this->mixer) { |
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| 134 | gst_roarmixer_free (this->mixer); |
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| 135 | this->mixer = NULL; |
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| 136 | } |
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| 137 | break; |
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| 138 | default: |
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| 139 | break; |
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| 140 | } |
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| 141 | |
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| 142 | return ret; |
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| 143 | } |
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| 144 | |
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| 145 | |
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| 146 | gboolean gst_roarmixer_factory_init (GstPlugin * plugin) { |
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| 147 | if (!gst_element_register(plugin, "roarmixer", GST_RANK_MARGINAL, |
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[2074] | 148 | GST_TYPE_ROAR_MIXER_ELEMENT)) |
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[2073] | 149 | return FALSE; |
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| 150 | |
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| 151 | return TRUE; |
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| 152 | } |
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| 153 | |
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[2076] | 154 | G_DEFINE_TYPE (GstRoarMixerTrack, gst_roarmixer_track, GST_TYPE_MIXER_TRACK); |
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| 155 | |
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[2070] | 156 | GstRoarMixer* gst_roarmixer_new (const gchar *device, |
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[2071] | 157 | GstRoarMixerDirection dir) { |
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| 158 | GstRoarMixer *ret = NULL; |
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| 159 | |
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[2076] | 160 | ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = ?", device, dir); |
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| 161 | |
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[2071] | 162 | g_return_val_if_fail(device != NULL, NULL); |
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| 163 | |
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| 164 | ret = g_new0(GstRoarMixer, 1); |
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| 165 | |
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| 166 | ret->device = g_strdup(device); |
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| 167 | ret->dir = dir; |
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[2074] | 168 | ret->cardname = g_strdup("RoarAudio Default Device"); |
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[2071] | 169 | |
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| 170 | /* |
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| 171 | if (!gst_ossmixer_open (ret)) |
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| 172 | goto error; |
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| 173 | */ |
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| 174 | |
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| 175 | if ( roar_simple_connect(&(ret->con), NULL, "gstroarmixer") == -1 ) |
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| 176 | goto error; |
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| 177 | |
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[2076] | 178 | ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = %p", device, dir, ret); |
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[2071] | 179 | return ret; |
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| 180 | |
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| 181 | error: |
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| 182 | if (ret) |
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| 183 | gst_roarmixer_free (ret); |
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| 184 | |
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[2076] | 185 | ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = NULL // Error?", device, dir); |
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[2071] | 186 | return NULL; |
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| 187 | } |
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[2070] | 188 | |
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[2071] | 189 | void gst_roarmixer_free (GstRoarMixer *mixer) { |
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| 190 | g_return_if_fail(mixer != NULL); |
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| 191 | |
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[2076] | 192 | ROAR_WARN("gst_roarmixer_free(mixer=%p) = ?", mixer); |
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| 193 | |
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[2071] | 194 | if (mixer->device) { |
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| 195 | g_free(mixer->device); |
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| 196 | mixer->device = NULL; |
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| 197 | } |
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| 198 | |
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| 199 | if (mixer->cardname) { |
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| 200 | g_free(mixer->cardname); |
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| 201 | mixer->cardname = NULL; |
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| 202 | } |
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| 203 | |
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| 204 | if (mixer->tracklist) { |
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| 205 | g_list_foreach(mixer->tracklist, (GFunc) g_object_unref, NULL); |
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| 206 | g_list_free(mixer->tracklist); |
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| 207 | mixer->tracklist = NULL; |
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| 208 | } |
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| 209 | |
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| 210 | roar_disconnect(&(mixer->con)); |
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| 211 | |
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| 212 | g_free (mixer); |
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[2076] | 213 | |
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| 214 | ROAR_WARN("gst_roarmixer_free(mixer=%p) = (void)", mixer); |
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[2071] | 215 | } |
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| 216 | |
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[2072] | 217 | /* unused with G_DISABLE_* */ |
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| 218 | static G_GNUC_UNUSED gboolean gst_roarmixer_contains_track (GstRoarMixer * mixer, |
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| 219 | GstRoarMixerTrack * roartrack) { |
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| 220 | const GList *item; |
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| 221 | |
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| 222 | for (item = mixer->tracklist; item != NULL; item = item->next) |
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| 223 | if (item->data == roartrack) |
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| 224 | return TRUE; |
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| 225 | |
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| 226 | return FALSE; |
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| 227 | } |
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| 228 | |
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[2076] | 229 | void gst_roarmixer_updatestreamlist (GstRoarMixer *mixer) { |
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| 230 | gboolean record = FALSE; |
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| 231 | gboolean input = FALSE; |
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| 232 | gint master = 0; |
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| 233 | gint i = 0; |
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| 234 | gint channels = 2; |
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| 235 | GstMixerTrack *track; |
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| 236 | |
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| 237 | ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = ?", mixer); |
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| 238 | |
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| 239 | if (mixer->tracklist) { |
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| 240 | ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = (void)", mixer); |
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| 241 | return; |
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| 242 | } |
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| 243 | |
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| 244 | track = gst_roarmixer_track_new (mixer, i, channels, |
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| 245 | (record ? GST_MIXER_TRACK_RECORD : 0) | |
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| 246 | (input ? GST_MIXER_TRACK_INPUT : |
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| 247 | GST_MIXER_TRACK_OUTPUT) | |
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| 248 | ((master != i) ? 0 : GST_MIXER_TRACK_MASTER)); |
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| 249 | mixer->tracklist = g_list_append (mixer->tracklist, track); |
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| 250 | |
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| 251 | ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = (void)", mixer); |
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| 252 | } |
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| 253 | |
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[2071] | 254 | const GList* gst_roarmixer_list_tracks (GstRoarMixer * mixer) { |
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[2076] | 255 | ROAR_WARN("gst_roarmixer_list_tracks(mixer=%p) = ?", mixer); |
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| 256 | |
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| 257 | gst_roarmixer_updatestreamlist(mixer); |
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| 258 | |
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[2071] | 259 | return (const GList *) mixer->tracklist; |
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| 260 | } |
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| 261 | |
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[2070] | 262 | void gst_roarmixer_set_volume (GstRoarMixer * mixer, |
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| 263 | GstMixerTrack * track, |
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[2071] | 264 | gint * volumes) { |
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| 265 | } |
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[2070] | 266 | void gst_roarmixer_get_volume (GstRoarMixer * mixer, |
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| 267 | GstMixerTrack * track, |
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[2071] | 268 | gint * volumes) { |
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| 269 | } |
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[2070] | 270 | void gst_roarmixer_set_record (GstRoarMixer * mixer, |
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| 271 | GstMixerTrack * track, |
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[2071] | 272 | gboolean record) { |
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| 273 | } |
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[2070] | 274 | void gst_roarmixer_set_mute (GstRoarMixer * mixer, |
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| 275 | GstMixerTrack * track, |
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[2071] | 276 | gboolean mute) { |
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| 277 | } |
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[2070] | 278 | |
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[2076] | 279 | // tracks: |
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| 280 | #define MASK_BIT_IS_SET(mask, bit) \ |
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| 281 | (mask & (1 << bit)) |
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| 282 | |
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| 283 | static void |
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| 284 | gst_roarmixer_track_class_init (GstRoarMixerTrackClass * klass) |
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| 285 | { |
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| 286 | /* nop */ |
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| 287 | } |
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| 288 | |
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| 289 | static void |
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| 290 | gst_roarmixer_track_init (GstRoarMixerTrack * track) |
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| 291 | { |
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| 292 | //memset(track, 0, sizeof(*track)); |
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| 293 | track->stream_id = -1; |
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| 294 | } |
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| 295 | |
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| 296 | GstMixerTrack * |
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| 297 | gst_roarmixer_track_new (GstRoarMixer * mixer, |
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| 298 | gint stream_id, gint max_chans, gint flags) |
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| 299 | { |
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| 300 | GstRoarMixerTrack *roartrack; |
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| 301 | GstMixerTrack *track; |
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| 302 | |
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| 303 | ROAR_WARN("gst_roarmixer_track_new(mixer=%p, stream_id=%i, max_chans=%i, flags=0x%.4x) = ?", mixer, stream_id, max_chans, flags); |
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| 304 | |
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| 305 | roartrack = g_object_new (GST_TYPE_ROARMIXER_TRACK, NULL); |
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| 306 | ROAR_WARN("gst_roarmixer_track_new(*): roartrack=%p", roartrack); |
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| 307 | track = GST_MIXER_TRACK (roartrack); |
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| 308 | track->label = g_strdup ("TRACKLABLE"); |
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| 309 | track->num_channels = max_chans; |
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| 310 | track->flags = flags; |
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| 311 | track->min_volume = 0; |
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| 312 | track->max_volume = 65535; |
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| 313 | roartrack->stream_id = stream_id; |
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| 314 | |
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| 315 | /* volume */ |
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| 316 | ROAR_WARN("gst_roarmixer_track_new(mixer=%p, stream_id=%i, max_chans=%i, flags=0x%.4x) = %p", mixer, stream_id, max_chans, flags, track); |
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| 317 | return track; |
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| 318 | } |
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| 319 | |
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[2070] | 320 | //ll |
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