channelmap.h

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00001 #ifndef foochannelmaphfoo
00002 #define foochannelmaphfoo
00003 
00004 /* $Id: channelmap.h 1033 2006-06-19 21:53:48Z lennart $ */
00005 
00006 /***
00007   This file is part of PulseAudio.
00008  
00009   PulseAudio is free software; you can redistribute it and/or modify
00010   it under the terms of the GNU Lesser General Public License as published
00011   by the Free Software Foundation; either version 2 of the License,
00012   or (at your option) any later version.
00013  
00014   PulseAudio is distributed in the hope that it will be useful, but
00015   WITHOUT ANY WARRANTY; without even the implied warranty of
00016   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00017   General Public License for more details.
00018  
00019   You should have received a copy of the GNU Lesser General Public License
00020   along with PulseAudio; if not, write to the Free Software
00021   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00022   USA.
00023 ***/
00024 
00025 #include <pulse/sample.h>
00026 #include <pulse/cdecl.h>
00027 
00065 PA_C_DECL_BEGIN
00066 
00068 typedef enum pa_channel_position {
00069     PA_CHANNEL_POSITION_INVALID = -1,
00070     PA_CHANNEL_POSITION_MONO = 0,
00071 
00072     PA_CHANNEL_POSITION_LEFT,
00073     PA_CHANNEL_POSITION_RIGHT,
00074     PA_CHANNEL_POSITION_CENTER,
00075     
00076     PA_CHANNEL_POSITION_FRONT_LEFT = PA_CHANNEL_POSITION_LEFT,
00077     PA_CHANNEL_POSITION_FRONT_RIGHT = PA_CHANNEL_POSITION_RIGHT,
00078     PA_CHANNEL_POSITION_FRONT_CENTER = PA_CHANNEL_POSITION_CENTER,
00079 
00080     PA_CHANNEL_POSITION_REAR_CENTER,
00081     PA_CHANNEL_POSITION_REAR_LEFT,
00082     PA_CHANNEL_POSITION_REAR_RIGHT,
00083     
00084     PA_CHANNEL_POSITION_LFE,
00085     PA_CHANNEL_POSITION_SUBWOOFER = PA_CHANNEL_POSITION_LFE,
00086     
00087     PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
00088     PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
00089     
00090     PA_CHANNEL_POSITION_SIDE_LEFT,
00091     PA_CHANNEL_POSITION_SIDE_RIGHT,
00092 
00093     PA_CHANNEL_POSITION_AUX0,
00094     PA_CHANNEL_POSITION_AUX1,
00095     PA_CHANNEL_POSITION_AUX2,
00096     PA_CHANNEL_POSITION_AUX3,
00097     PA_CHANNEL_POSITION_AUX4,
00098     PA_CHANNEL_POSITION_AUX5,
00099     PA_CHANNEL_POSITION_AUX6,
00100     PA_CHANNEL_POSITION_AUX7,
00101     PA_CHANNEL_POSITION_AUX8,
00102     PA_CHANNEL_POSITION_AUX9,
00103     PA_CHANNEL_POSITION_AUX10,
00104     PA_CHANNEL_POSITION_AUX11,
00105     PA_CHANNEL_POSITION_AUX12,
00106     PA_CHANNEL_POSITION_AUX13,
00107     PA_CHANNEL_POSITION_AUX14,
00108     PA_CHANNEL_POSITION_AUX15,
00109     PA_CHANNEL_POSITION_AUX16,
00110     PA_CHANNEL_POSITION_AUX17,
00111     PA_CHANNEL_POSITION_AUX18,
00112     PA_CHANNEL_POSITION_AUX19,
00113     PA_CHANNEL_POSITION_AUX20,
00114     PA_CHANNEL_POSITION_AUX21,
00115     PA_CHANNEL_POSITION_AUX22,
00116     PA_CHANNEL_POSITION_AUX23,
00117     PA_CHANNEL_POSITION_AUX24,
00118     PA_CHANNEL_POSITION_AUX25,
00119     PA_CHANNEL_POSITION_AUX26,
00120     PA_CHANNEL_POSITION_AUX27,
00121     PA_CHANNEL_POSITION_AUX28,
00122     PA_CHANNEL_POSITION_AUX29,
00123     PA_CHANNEL_POSITION_AUX30,
00124     PA_CHANNEL_POSITION_AUX31,
00125 
00126     PA_CHANNEL_POSITION_TOP_CENTER,
00127     
00128     PA_CHANNEL_POSITION_TOP_FRONT_LEFT,
00129     PA_CHANNEL_POSITION_TOP_FRONT_RIGHT,
00130     PA_CHANNEL_POSITION_TOP_FRONT_CENTER,
00131 
00132     PA_CHANNEL_POSITION_TOP_REAR_LEFT,
00133     PA_CHANNEL_POSITION_TOP_REAR_RIGHT,
00134     PA_CHANNEL_POSITION_TOP_REAR_CENTER,
00135     
00136     PA_CHANNEL_POSITION_MAX
00137 } pa_channel_position_t;
00138 
00140 typedef enum pa_channel_map_def {
00141     PA_CHANNEL_MAP_AIFF,   
00142     PA_CHANNEL_MAP_ALSA,   
00143     PA_CHANNEL_MAP_AUX,    
00144     PA_CHANNEL_MAP_WAVEEX, 
00145     PA_CHANNEL_MAP_OSS,    
00147     PA_CHANNEL_MAP_DEFAULT = PA_CHANNEL_MAP_AIFF 
00148 } pa_channel_map_def_t;
00149 
00153 typedef struct pa_channel_map {
00154     uint8_t channels; 
00155     pa_channel_position_t map[PA_CHANNELS_MAX]; 
00156 } pa_channel_map;
00157 
00159 pa_channel_map* pa_channel_map_init(pa_channel_map *m);
00160 
00162 pa_channel_map* pa_channel_map_init_mono(pa_channel_map *m);
00163 
00165 pa_channel_map* pa_channel_map_init_stereo(pa_channel_map *m);
00166 
00169 pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels, pa_channel_map_def_t def);
00170 
00172 const char* pa_channel_position_to_string(pa_channel_position_t pos);
00173 
00175 #define PA_CHANNEL_MAP_SNPRINT_MAX 336
00176 
00178 char* pa_channel_map_snprint(char *s, size_t l, const pa_channel_map *map);
00179 
00181 pa_channel_map *pa_channel_map_parse(pa_channel_map *map, const char *s);
00182 
00184 int pa_channel_map_equal(const pa_channel_map *a, const pa_channel_map *b);
00185 
00187 int pa_channel_map_valid(const pa_channel_map *map);
00188 
00189 PA_C_DECL_END
00190 
00191 #endif

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