channelmap.h

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#ifndef foochannelmaphfoo
#define foochannelmaphfoo

/***
  This file is part of PulseAudio.

  Copyright 2005-2006 Lennart Poettering
  Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB

  PulseAudio is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published
  by the Free Software Foundation; either version 2 of the License,
  or (at your option) any later version.

  PulseAudio 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 Lesser General Public License
  along with PulseAudio; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  USA.
***/

#include <pulse/sample.h>
#include <pulse/cdecl.h>
#include <pulse/gccmacro.h>

PA_C_DECL_BEGIN

typedef enum pa_channel_position {
    PA_CHANNEL_POSITION_INVALID = -1,
    PA_CHANNEL_POSITION_MONO = 0,

    PA_CHANNEL_POSITION_LEFT,
    PA_CHANNEL_POSITION_RIGHT,
    PA_CHANNEL_POSITION_CENTER,

    PA_CHANNEL_POSITION_FRONT_LEFT = PA_CHANNEL_POSITION_LEFT,
    PA_CHANNEL_POSITION_FRONT_RIGHT = PA_CHANNEL_POSITION_RIGHT,
    PA_CHANNEL_POSITION_FRONT_CENTER = PA_CHANNEL_POSITION_CENTER,

    PA_CHANNEL_POSITION_REAR_CENTER,
    PA_CHANNEL_POSITION_REAR_LEFT,
    PA_CHANNEL_POSITION_REAR_RIGHT,

    PA_CHANNEL_POSITION_LFE,
    PA_CHANNEL_POSITION_SUBWOOFER = PA_CHANNEL_POSITION_LFE,

    PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
    PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,

    PA_CHANNEL_POSITION_SIDE_LEFT,
    PA_CHANNEL_POSITION_SIDE_RIGHT,

    PA_CHANNEL_POSITION_AUX0,
    PA_CHANNEL_POSITION_AUX1,
    PA_CHANNEL_POSITION_AUX2,
    PA_CHANNEL_POSITION_AUX3,
    PA_CHANNEL_POSITION_AUX4,
    PA_CHANNEL_POSITION_AUX5,
    PA_CHANNEL_POSITION_AUX6,
    PA_CHANNEL_POSITION_AUX7,
    PA_CHANNEL_POSITION_AUX8,
    PA_CHANNEL_POSITION_AUX9,
    PA_CHANNEL_POSITION_AUX10,
    PA_CHANNEL_POSITION_AUX11,
    PA_CHANNEL_POSITION_AUX12,
    PA_CHANNEL_POSITION_AUX13,
    PA_CHANNEL_POSITION_AUX14,
    PA_CHANNEL_POSITION_AUX15,
    PA_CHANNEL_POSITION_AUX16,
    PA_CHANNEL_POSITION_AUX17,
    PA_CHANNEL_POSITION_AUX18,
    PA_CHANNEL_POSITION_AUX19,
    PA_CHANNEL_POSITION_AUX20,
    PA_CHANNEL_POSITION_AUX21,
    PA_CHANNEL_POSITION_AUX22,
    PA_CHANNEL_POSITION_AUX23,
    PA_CHANNEL_POSITION_AUX24,
    PA_CHANNEL_POSITION_AUX25,
    PA_CHANNEL_POSITION_AUX26,
    PA_CHANNEL_POSITION_AUX27,
    PA_CHANNEL_POSITION_AUX28,
    PA_CHANNEL_POSITION_AUX29,
    PA_CHANNEL_POSITION_AUX30,
    PA_CHANNEL_POSITION_AUX31,

    PA_CHANNEL_POSITION_TOP_CENTER,

    PA_CHANNEL_POSITION_TOP_FRONT_LEFT,
    PA_CHANNEL_POSITION_TOP_FRONT_RIGHT,
    PA_CHANNEL_POSITION_TOP_FRONT_CENTER,

    PA_CHANNEL_POSITION_TOP_REAR_LEFT,
    PA_CHANNEL_POSITION_TOP_REAR_RIGHT,
    PA_CHANNEL_POSITION_TOP_REAR_CENTER,

    PA_CHANNEL_POSITION_MAX
} pa_channel_position_t;

typedef enum pa_channel_map_def {
    PA_CHANNEL_MAP_AIFF,
    PA_CHANNEL_MAP_ALSA,
    PA_CHANNEL_MAP_AUX,
    PA_CHANNEL_MAP_WAVEEX,
    PA_CHANNEL_MAP_OSS,
    PA_CHANNEL_MAP_DEF_MAX,

    PA_CHANNEL_MAP_DEFAULT = PA_CHANNEL_MAP_AIFF
} pa_channel_map_def_t;

typedef struct pa_channel_map {
    uint8_t channels;
    pa_channel_position_t map[PA_CHANNELS_MAX];
} pa_channel_map;

pa_channel_map* pa_channel_map_init(pa_channel_map *m);

pa_channel_map* pa_channel_map_init_mono(pa_channel_map *m);

pa_channel_map* pa_channel_map_init_stereo(pa_channel_map *m);

pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels, pa_channel_map_def_t def);

pa_channel_map* pa_channel_map_init_extend(pa_channel_map *m, unsigned channels, pa_channel_map_def_t def);

const char* pa_channel_position_to_string(pa_channel_position_t pos) PA_GCC_PURE;

const char* pa_channel_position_to_pretty_string(pa_channel_position_t pos);

#define PA_CHANNEL_MAP_SNPRINT_MAX 336

char* pa_channel_map_snprint(char *s, size_t l, const pa_channel_map *map);

pa_channel_map *pa_channel_map_parse(pa_channel_map *map, const char *s);

int pa_channel_map_equal(const pa_channel_map *a, const pa_channel_map *b) PA_GCC_PURE;

int pa_channel_map_valid(const pa_channel_map *map) PA_GCC_PURE;

int pa_channel_map_compatible(const pa_channel_map *map, const pa_sample_spec *ss) PA_GCC_PURE;

PA_C_DECL_END

#endif

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