diff options
Diffstat (limited to 'polyp/channelmap.c')
| -rw-r--r-- | polyp/channelmap.c | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/polyp/channelmap.c b/polyp/channelmap.c deleted file mode 100644 index 7bfd21e6..00000000 --- a/polyp/channelmap.c +++ /dev/null @@ -1,202 +0,0 @@ -/* $Id$ */ - -/*** - This file is part of polypaudio. - - polypaudio 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. - - polypaudio 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 polypaudio; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. -***/ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdlib.h> -#include <assert.h> -#include <stdio.h> -#include <string.h> - -#include "channelmap.h" - -pa_channel_map* pa_channel_map_init(pa_channel_map *m) { - unsigned c; - assert(m); - - m->channels = 0; - - for (c = 0; c < PA_CHANNELS_MAX; c++) - m->map[c] = PA_CHANNEL_POSITION_INVALID; - - return m; -} - -pa_channel_map* pa_channel_map_init_mono(pa_channel_map *m) { - assert(m); - - pa_channel_map_init(m); - - m->channels = 1; - m->map[0] = PA_CHANNEL_POSITION_MONO; - return m; -} - -pa_channel_map* pa_channel_map_init_stereo(pa_channel_map *m) { - assert(m); - - pa_channel_map_init(m); - - m->channels = 2; - m->map[0] = PA_CHANNEL_POSITION_LEFT; - m->map[1] = PA_CHANNEL_POSITION_RIGHT; - return m; -} - -pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels) { - assert(m); - assert(channels > 0); - assert(channels <= PA_CHANNELS_MAX); - - pa_channel_map_init(m); - - m->channels = channels; - - switch (channels) { - case 1: - m->map[0] = PA_CHANNEL_POSITION_MONO; - return m; - - case 8: - m->map[6] = PA_CHANNEL_POSITION_SIDE_LEFT; - m->map[7] = PA_CHANNEL_POSITION_SIDE_RIGHT; - /* Fall through */ - - case 6: - m->map[5] = PA_CHANNEL_POSITION_LFE; - /* Fall through */ - - case 5: - m->map[4] = PA_CHANNEL_POSITION_FRONT_CENTER; - /* Fall through */ - - case 4: - m->map[2] = PA_CHANNEL_POSITION_REAR_LEFT; - m->map[3] = PA_CHANNEL_POSITION_REAR_RIGHT; - /* Fall through */ - - case 2: - m->map[0] = PA_CHANNEL_POSITION_FRONT_LEFT; - m->map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT; - return m; - - default: - return NULL; - } -} - -const char* pa_channel_position_to_string(pa_channel_position_t pos) { - - const char *const table[] = { - [PA_CHANNEL_POSITION_MONO] = "mono", - - [PA_CHANNEL_POSITION_FRONT_CENTER] = "front-center", - [PA_CHANNEL_POSITION_FRONT_LEFT] = "front-left", - [PA_CHANNEL_POSITION_FRONT_RIGHT] = "front-right", - - [PA_CHANNEL_POSITION_REAR_CENTER] = "rear-center", - [PA_CHANNEL_POSITION_REAR_LEFT] = "rear-left", - [PA_CHANNEL_POSITION_REAR_RIGHT] = "rear-right", - - [PA_CHANNEL_POSITION_LFE] = "lfe", - - [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = "front-left-of-center", - [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = "front-right-of-center", - - [PA_CHANNEL_POSITION_SIDE_LEFT] = "side-left", - [PA_CHANNEL_POSITION_SIDE_RIGHT] = "side-right", - - [PA_CHANNEL_POSITION_AUX1] = "aux1", - [PA_CHANNEL_POSITION_AUX2] = "aux2", - [PA_CHANNEL_POSITION_AUX3] = "aux3", - [PA_CHANNEL_POSITION_AUX4] = "aux4", - [PA_CHANNEL_POSITION_AUX5] = "aux5", - [PA_CHANNEL_POSITION_AUX6] = "aux6", - [PA_CHANNEL_POSITION_AUX7] = "aux7", - [PA_CHANNEL_POSITION_AUX8] = "aux8", - [PA_CHANNEL_POSITION_AUX9] = "aux9", - [PA_CHANNEL_POSITION_AUX10] = "aux10", - [PA_CHANNEL_POSITION_AUX11] = "aux11", - [PA_CHANNEL_POSITION_AUX12] = "aux12" - }; - - if (pos < 0 || pos >= PA_CHANNEL_POSITION_MAX) - return NULL; - - return table[pos]; -} - -int pa_channel_map_equal(const pa_channel_map *a, const pa_channel_map *b) { - unsigned c; - - assert(a); - assert(b); - - if (a->channels != b->channels) - return 0; - - for (c = 0; c < a->channels; c++) - if (a->map[c] != b->map[c]) - return 0; - - return 1; -} - -char* pa_channel_map_snprint(char *s, size_t l, const pa_channel_map *map) { - unsigned channel; - int first = 1; - char *e; - - assert(s); - assert(l > 0); - assert(map); - - *(e = s) = 0; - - for (channel = 0; channel < map->channels && l > 1; channel++) { - l -= snprintf(e, l, "%s%u:%s", - first ? "" : " ", - channel, - pa_channel_position_to_string(map->map[channel])); - - e = strchr(e, 0); - first = 0; - } - - return s; -} - -int pa_channel_map_valid(const pa_channel_map *map) { - unsigned c; - - assert(map); - - if (map->channels <= 0 || map->channels > PA_CHANNELS_MAX) - return 0; - - for (c = 0; c < map->channels; c++) - if (map->map[c] < 0 ||map->map[c] >= PA_CHANNEL_POSITION_MAX) - return 0; - - return 1; -} |