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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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(NULL, GST_ROAR_MIXER_ALL); |
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120 | } |
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121 | break; |
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122 | default: |
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123 | break; |
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124 | } |
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125 | |
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126 | ret = GST_ELEMENT_CLASS(parent_class)->change_state(element, transition); |
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127 | if (ret == GST_STATE_CHANGE_FAILURE) |
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128 | return ret; |
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129 | |
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130 | switch (transition) { |
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131 | case GST_STATE_CHANGE_READY_TO_NULL: |
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132 | if (this->mixer) { |
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133 | gst_roarmixer_free(this->mixer); |
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134 | this->mixer = NULL; |
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135 | } |
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136 | break; |
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137 | default: |
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138 | break; |
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139 | } |
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140 | |
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141 | return ret; |
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142 | } |
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143 | |
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144 | |
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145 | gboolean gst_roarmixer_factory_init (GstPlugin * plugin) { |
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146 | if (!gst_element_register(plugin, "roarmixer", GST_RANK_MARGINAL, |
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147 | GST_TYPE_ROAR_MIXER_ELEMENT)) |
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148 | return FALSE; |
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149 | |
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150 | return TRUE; |
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151 | } |
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152 | |
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153 | G_DEFINE_TYPE (GstRoarMixerTrack, gst_roarmixer_track, GST_TYPE_MIXER_TRACK); |
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154 | |
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155 | GstRoarMixer* gst_roarmixer_new (const gchar *device, |
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156 | GstRoarMixerDirection dir) { |
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157 | GstRoarMixer *ret = NULL; |
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158 | |
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159 | ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = ?", device, dir); |
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160 | |
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161 | ret = g_new0(GstRoarMixer, 1); |
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162 | |
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163 | ret->device = g_strdup(device); |
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164 | ret->dir = dir; |
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165 | ret->cardname = g_strdup("RoarAudio Default Device"); |
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166 | |
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167 | /* |
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168 | if (!gst_ossmixer_open (ret)) |
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169 | goto error; |
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170 | */ |
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171 | |
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172 | if ( roar_simple_connect(&(ret->con), (char*)device, "gstroarmixer") == -1 ) |
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173 | goto error; |
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174 | |
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175 | ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = %p", device, dir, ret); |
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176 | return ret; |
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177 | |
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178 | error: |
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179 | if (ret) |
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180 | gst_roarmixer_free (ret); |
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181 | |
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182 | ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = NULL // Error?", device, dir); |
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183 | return NULL; |
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184 | } |
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185 | |
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186 | void gst_roarmixer_free (GstRoarMixer *mixer) { |
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187 | g_return_if_fail(mixer != NULL); |
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188 | |
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189 | ROAR_WARN("gst_roarmixer_free(mixer=%p) = ?", mixer); |
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190 | |
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191 | if (mixer->device) { |
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192 | g_free(mixer->device); |
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193 | mixer->device = NULL; |
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194 | } |
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195 | |
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196 | if (mixer->cardname) { |
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197 | g_free(mixer->cardname); |
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198 | mixer->cardname = NULL; |
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199 | } |
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200 | |
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201 | if (mixer->tracklist) { |
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202 | g_list_foreach(mixer->tracklist, (GFunc) g_object_unref, NULL); |
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203 | g_list_free(mixer->tracklist); |
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204 | mixer->tracklist = NULL; |
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205 | } |
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206 | |
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207 | roar_disconnect(&(mixer->con)); |
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208 | |
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209 | g_free (mixer); |
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210 | |
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211 | ROAR_WARN("gst_roarmixer_free(mixer=%p) = (void)", mixer); |
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212 | } |
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213 | |
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214 | /* unused with G_DISABLE_* */ |
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215 | static G_GNUC_UNUSED gboolean gst_roarmixer_contains_track (GstRoarMixer * mixer, |
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216 | GstRoarMixerTrack * roartrack) { |
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217 | const GList *item; |
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218 | |
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219 | if ( mixer == NULL || mixer->tracklist == NULL ) |
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220 | return FALSE; |
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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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229 | void gst_roarmixer_updatestreamlist (GstRoarMixer *mixer) { |
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230 | gint i = 0; |
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231 | gint num; |
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232 | gint id[ROAR_STREAMS_MAX]; |
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233 | GstMixerTrack *track; |
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234 | |
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235 | ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = ? // ########################", mixer); |
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236 | ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p): tracklist=%p", mixer, mixer->tracklist); |
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237 | |
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238 | if (mixer->tracklist) { |
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239 | ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = (void)", mixer); |
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240 | return; |
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241 | } |
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242 | |
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243 | /* |
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244 | if (mixer->tracklist) { |
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245 | g_list_foreach(mixer->tracklist, (GFunc) g_object_unref, NULL); |
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246 | g_list_free(mixer->tracklist); |
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247 | mixer->tracklist = NULL; |
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248 | } |
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249 | */ |
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250 | |
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251 | ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p): tracklist=%p", mixer, mixer->tracklist); |
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252 | |
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253 | if ( (num = roar_list_streams(&(mixer->con), id, ROAR_STREAMS_MAX)) == -1 ) { |
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254 | return; |
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255 | } |
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256 | |
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257 | |
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258 | for (i = 0; i < num; i++) { |
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259 | track = gst_roarmixer_track_new(mixer, id[i]); |
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260 | ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p): track=%p", mixer, track); |
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261 | |
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262 | if ( track == NULL ) |
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263 | continue; |
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264 | |
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265 | mixer->tracklist = g_list_append(mixer->tracklist, track); |
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266 | } |
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267 | |
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268 | ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p): tracklist=%p", mixer, mixer->tracklist); |
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269 | |
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270 | ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = (void) // ###################", mixer); |
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271 | } |
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272 | |
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273 | const GList* gst_roarmixer_list_tracks (GstRoarMixer * mixer) { |
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274 | ROAR_WARN("gst_roarmixer_list_tracks(mixer=%p) = ?", mixer); |
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275 | |
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276 | gst_roarmixer_updatestreamlist(mixer); |
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277 | |
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278 | ROAR_WARN("gst_roarmixer_list_tracks(mixer=%p) = %p", mixer, mixer->tracklist); |
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279 | return (const GList *) mixer->tracklist; |
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280 | } |
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281 | |
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282 | void gst_roarmixer_set_volume (GstRoarMixer * mixer, |
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283 | GstMixerTrack * track, |
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284 | gint * volumes) { |
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285 | GstRoarMixerTrack *roartrack = GST_ROARMIXER_TRACK(track); |
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286 | int channels; |
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287 | struct roar_mixer_settings m; |
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288 | gint i; |
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289 | |
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290 | |
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291 | g_return_if_fail(gst_roarmixer_contains_track(mixer, roartrack)); |
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292 | |
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293 | if ( roar_get_vol(&(mixer->con), roartrack->stream_id, &m, &channels) == -1 ) { |
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294 | ROAR_WARN("gst_roarmixer_get_volume(*): can not get mixer infos for stream %i", roartrack->stream_id); |
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295 | return; |
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296 | } |
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297 | |
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298 | if ( channels != track->num_channels ) { |
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299 | ROAR_WARN("gst_roarmixer_get_volume(*): numer of channels for stream %i mismatch", roartrack->stream_id); |
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300 | |
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301 | if ( track->num_channels < channels ) |
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302 | channels = track->num_channels; |
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303 | } |
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304 | |
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305 | for (i = 0; i < channels; i++) { |
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306 | m.mixer[i] = volumes[i]; |
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307 | } |
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308 | |
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309 | m.scale = 65535; |
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310 | |
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311 | roar_set_vol(&(mixer->con), roartrack->stream_id, &m, channels); |
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312 | } |
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313 | |
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314 | void gst_roarmixer_get_volume (GstRoarMixer * mixer, |
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315 | GstMixerTrack * track, |
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316 | gint * volumes) { |
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317 | GstRoarMixerTrack *roartrack = GST_ROARMIXER_TRACK(track); |
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318 | int channels; |
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319 | struct roar_mixer_settings m; |
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320 | gint i; |
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321 | |
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322 | |
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323 | g_return_if_fail(gst_roarmixer_contains_track(mixer, roartrack)); |
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324 | |
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325 | if ( roar_get_vol(&(mixer->con), roartrack->stream_id, &m, &channels) == -1 ) { |
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326 | ROAR_WARN("gst_roarmixer_get_volume(*): can not get mixer infos for stream %i", roartrack->stream_id); |
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327 | return; |
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328 | } |
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329 | |
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330 | if ( channels != track->num_channels ) { |
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331 | ROAR_WARN("gst_roarmixer_get_volume(*): numer of channels for stream %i mismatch", roartrack->stream_id); |
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332 | |
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333 | if ( track->num_channels < channels ) |
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334 | channels = track->num_channels; |
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335 | } |
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336 | |
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337 | for (i = 0; i < channels; i++) { |
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338 | if ( m.scale == 65535 ) { |
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339 | volumes[i] = m.mixer[i]; |
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340 | } else { |
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341 | volumes[i] = m.mixer[i] * 65535. / (float) m.scale; // we do not hanle precides scaling here |
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342 | // as it does not matter: |
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343 | // we never write those values back to roard. |
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344 | } |
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345 | } |
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346 | |
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347 | } |
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348 | void gst_roarmixer_set_record (GstRoarMixer * mixer, |
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349 | GstMixerTrack * track, |
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350 | gboolean record) { |
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351 | } |
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352 | void gst_roarmixer_set_mute (GstRoarMixer * mixer, |
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353 | GstMixerTrack * track, |
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354 | gboolean mute) { |
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355 | GstRoarMixerTrack *roartrack = GST_ROARMIXER_TRACK(track); |
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356 | struct roar_stream s; |
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357 | |
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358 | g_return_if_fail(gst_roarmixer_contains_track(mixer, roartrack)); |
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359 | |
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360 | roar_stream_new_by_id(&s, roartrack->stream_id); |
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361 | |
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362 | if (mute) { |
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363 | roar_stream_set_flags(&(mixer->con), &s, ROAR_FLAG_MUTE, ROAR_SET_FLAG); |
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364 | } else { |
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365 | roar_stream_set_flags(&(mixer->con), &s, ROAR_FLAG_MUTE, ROAR_RESET_FLAG); |
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366 | } |
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367 | } |
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368 | |
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369 | // tracks: |
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370 | #define MASK_BIT_IS_SET(mask, bit) \ |
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371 | (mask & (1 << bit)) |
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372 | |
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373 | static void |
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374 | gst_roarmixer_track_class_init (GstRoarMixerTrackClass * klass) |
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375 | { |
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376 | /* nop */ |
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377 | } |
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378 | |
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379 | static void |
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380 | gst_roarmixer_track_init (GstRoarMixerTrack * track) |
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381 | { |
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382 | //memset(track, 0, sizeof(*track)); |
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383 | track->stream_id = -1; |
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384 | ROAR_WARN("gst_roarmixer_track_init(track=%p) = (void)", track); |
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385 | } |
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386 | |
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387 | GstMixerTrack * |
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388 | gst_roarmixer_track_new (GstRoarMixer * mixer, |
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389 | gint stream_id) |
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390 | { |
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391 | GstRoarMixerTrack *roartrack; |
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392 | GstMixerTrack *track; |
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393 | struct roar_stream s; |
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394 | struct roar_client c; |
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395 | struct roar_meta m; |
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396 | gint flags = 0; |
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397 | gchar buf[1024]; |
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398 | int num; |
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399 | int id[ROAR_CLIENTS_MAX]; |
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400 | char * clientname = NULL; |
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401 | char * metaname = NULL; |
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402 | char streamname[1024] = {0}; |
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403 | gint i, h; |
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404 | |
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405 | ROAR_WARN("gst_roarmixer_track_new(mixer=%p, stream_id=%i) = ?", mixer, stream_id); |
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406 | |
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407 | if ( roar_get_stream(&(mixer->con), &s, stream_id) == -1 ) { |
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408 | return NULL; |
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409 | } |
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410 | |
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411 | // TODO: find something more efficent: |
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412 | |
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413 | if ( (num = roar_list_clients(&(mixer->con), id, ROAR_CLIENTS_MAX)) != -1 ) { |
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414 | for (i = 0; i < num; i++) { |
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415 | ROAR_DBG("gst_roarmixer_track_new(*): stream %i -->> client %i?", stream_id, id[i]); |
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416 | if ( roar_get_client(&(mixer->con), &c, id[i]) != -1 ) { |
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417 | for (h = 0; h < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; h++) { |
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418 | ROAR_DBG("gst_roarmixer_track_new(*): stream %i <-> %i -->> client %i?", stream_id, c.streams[h], id[i]); |
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419 | if ( c.streams[h] == stream_id ) { |
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420 | clientname = c.name; |
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421 | h = ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; |
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422 | i = num; |
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423 | } |
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424 | } |
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425 | } |
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426 | } |
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427 | } |
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428 | |
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429 | m.type = ROAR_META_TYPE_TITLE; |
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430 | if ( roar_stream_meta_get(&(mixer->con), &s, &m) != -1 ) { |
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431 | metaname = m.value; |
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432 | } |
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433 | |
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434 | if ( roar_stream_get_name(&(mixer->con), &s, streamname, 1024) != 0 ) |
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435 | *streamname = 0; |
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436 | |
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437 | switch (s.dir) { |
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438 | case ROAR_DIR_PLAY: |
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439 | flags |= GST_MIXER_TRACK_OUTPUT; |
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440 | break; |
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441 | case ROAR_DIR_MIXING: |
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442 | flags |= GST_MIXER_TRACK_OUTPUT; |
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443 | break; |
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444 | case ROAR_DIR_OUTPUT: |
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445 | flags |= GST_MIXER_TRACK_MASTER; |
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446 | case ROAR_DIR_MONITOR: |
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447 | flags |= GST_MIXER_TRACK_OUTPUT; |
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448 | break; |
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449 | default: return NULL; |
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450 | } |
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451 | |
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452 | #if 0 |
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453 | if ( !*streamname && metaname == NULL ) |
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454 | sprintf(streamname, "[Stream %i]", stream_id); |
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455 | |
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456 | sprintf(buf, "%s\n%s", clientname ? clientname : "[Unknown]", |
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457 | *streamname ? streamname : metaname |
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458 | ); |
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459 | #else |
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460 | if ( *streamname ) { |
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461 | strcpy(buf, streamname); |
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462 | } else { |
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463 | sprintf(buf, "Stream %i/%s", stream_id, clientname); |
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464 | } |
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465 | #endif |
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466 | |
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467 | roartrack = g_object_new(GST_TYPE_ROARMIXER_TRACK, NULL); |
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468 | ROAR_WARN("gst_roarmixer_track_new(*): roartrack=%p", roartrack); |
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469 | track = GST_MIXER_TRACK(roartrack); |
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470 | track->label = g_strdup(buf); |
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471 | track->num_channels = s.info.channels; |
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472 | track->flags = flags; |
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473 | track->min_volume = 0; |
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474 | track->max_volume = 65535; |
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475 | roartrack->stream_id = stream_id; |
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476 | |
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477 | /* volume */ |
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478 | ROAR_WARN("gst_roarmixer_track_new(mixer=%p, stream_id=%i) = %p", mixer, stream_id, track); |
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479 | return track; |
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480 | } |
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481 | |
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482 | //ll |
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