2 This file is part of PulseAudio.
4 Copyright 2005-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2 of the License,
10 or (at your option) any later version.
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <pulse/xmalloc.h>
32 #include <pulse/i18n.h>
33 #include <pulsecore/core-util.h>
34 #include <pulsecore/macro.h>
35 #include <pulsecore/bitset.h>
37 #include "channelmap.h"
39 const char *const table[PA_CHANNEL_POSITION_MAX] = {
40 [PA_CHANNEL_POSITION_MONO] = "mono",
42 [PA_CHANNEL_POSITION_FRONT_CENTER] = "front-center",
43 [PA_CHANNEL_POSITION_FRONT_LEFT] = "front-left",
44 [PA_CHANNEL_POSITION_FRONT_RIGHT] = "front-right",
46 [PA_CHANNEL_POSITION_REAR_CENTER] = "rear-center",
47 [PA_CHANNEL_POSITION_REAR_LEFT] = "rear-left",
48 [PA_CHANNEL_POSITION_REAR_RIGHT] = "rear-right",
50 [PA_CHANNEL_POSITION_LFE] = "lfe",
52 [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = "front-left-of-center",
53 [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = "front-right-of-center",
55 [PA_CHANNEL_POSITION_SIDE_LEFT] = "side-left",
56 [PA_CHANNEL_POSITION_SIDE_RIGHT] = "side-right",
58 [PA_CHANNEL_POSITION_AUX0] = "aux0",
59 [PA_CHANNEL_POSITION_AUX1] = "aux1",
60 [PA_CHANNEL_POSITION_AUX2] = "aux2",
61 [PA_CHANNEL_POSITION_AUX3] = "aux3",
62 [PA_CHANNEL_POSITION_AUX4] = "aux4",
63 [PA_CHANNEL_POSITION_AUX5] = "aux5",
64 [PA_CHANNEL_POSITION_AUX6] = "aux6",
65 [PA_CHANNEL_POSITION_AUX7] = "aux7",
66 [PA_CHANNEL_POSITION_AUX8] = "aux8",
67 [PA_CHANNEL_POSITION_AUX9] = "aux9",
68 [PA_CHANNEL_POSITION_AUX10] = "aux10",
69 [PA_CHANNEL_POSITION_AUX11] = "aux11",
70 [PA_CHANNEL_POSITION_AUX12] = "aux12",
71 [PA_CHANNEL_POSITION_AUX13] = "aux13",
72 [PA_CHANNEL_POSITION_AUX14] = "aux14",
73 [PA_CHANNEL_POSITION_AUX15] = "aux15",
74 [PA_CHANNEL_POSITION_AUX16] = "aux16",
75 [PA_CHANNEL_POSITION_AUX17] = "aux17",
76 [PA_CHANNEL_POSITION_AUX18] = "aux18",
77 [PA_CHANNEL_POSITION_AUX19] = "aux19",
78 [PA_CHANNEL_POSITION_AUX20] = "aux20",
79 [PA_CHANNEL_POSITION_AUX21] = "aux21",
80 [PA_CHANNEL_POSITION_AUX22] = "aux22",
81 [PA_CHANNEL_POSITION_AUX23] = "aux23",
82 [PA_CHANNEL_POSITION_AUX24] = "aux24",
83 [PA_CHANNEL_POSITION_AUX25] = "aux25",
84 [PA_CHANNEL_POSITION_AUX26] = "aux26",
85 [PA_CHANNEL_POSITION_AUX27] = "aux27",
86 [PA_CHANNEL_POSITION_AUX28] = "aux28",
87 [PA_CHANNEL_POSITION_AUX29] = "aux29",
88 [PA_CHANNEL_POSITION_AUX30] = "aux30",
89 [PA_CHANNEL_POSITION_AUX31] = "aux31",
91 [PA_CHANNEL_POSITION_TOP_CENTER] = "top-center",
93 [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = "top-front-center",
94 [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = "top-front-left",
95 [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = "top-front-right",
97 [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = "top-rear-center",
98 [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = "top-rear-left",
99 [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = "top-rear-right"
102 const char *const pretty_table[PA_CHANNEL_POSITION_MAX] = {
103 [PA_CHANNEL_POSITION_MONO] = N_("Mono"),
105 [PA_CHANNEL_POSITION_FRONT_CENTER] = N_("Front Center"),
106 [PA_CHANNEL_POSITION_FRONT_LEFT] = N_("Front Left"),
107 [PA_CHANNEL_POSITION_FRONT_RIGHT] = N_("Front Right"),
109 [PA_CHANNEL_POSITION_REAR_CENTER] = N_("Rear Center"),
110 [PA_CHANNEL_POSITION_REAR_LEFT] = N_("Rear Left"),
111 [PA_CHANNEL_POSITION_REAR_RIGHT] = N_("Rear Right"),
113 [PA_CHANNEL_POSITION_LFE] = N_("Low Frequency Emmiter"),
115 [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = N_("Front Left-of-center"),
116 [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = N_("Front Right-of-center"),
118 [PA_CHANNEL_POSITION_SIDE_LEFT] = N_("Side Left"),
119 [PA_CHANNEL_POSITION_SIDE_RIGHT] = N_("Side Right"),
121 [PA_CHANNEL_POSITION_AUX0] = N_("Auxiliary 0"),
122 [PA_CHANNEL_POSITION_AUX1] = N_("Auxiliary 1"),
123 [PA_CHANNEL_POSITION_AUX2] = N_("Auxiliary 2"),
124 [PA_CHANNEL_POSITION_AUX3] = N_("Auxiliary 3"),
125 [PA_CHANNEL_POSITION_AUX4] = N_("Auxiliary 4"),
126 [PA_CHANNEL_POSITION_AUX5] = N_("Auxiliary 5"),
127 [PA_CHANNEL_POSITION_AUX6] = N_("Auxiliary 6"),
128 [PA_CHANNEL_POSITION_AUX7] = N_("Auxiliary 7"),
129 [PA_CHANNEL_POSITION_AUX8] = N_("Auxiliary 8"),
130 [PA_CHANNEL_POSITION_AUX9] = N_("Auxiliary 9"),
131 [PA_CHANNEL_POSITION_AUX10] = N_("Auxiliary 10"),
132 [PA_CHANNEL_POSITION_AUX11] = N_("Auxiliary 11"),
133 [PA_CHANNEL_POSITION_AUX12] = N_("Auxiliary 12"),
134 [PA_CHANNEL_POSITION_AUX13] = N_("Auxiliary 13"),
135 [PA_CHANNEL_POSITION_AUX14] = N_("Auxiliary 14"),
136 [PA_CHANNEL_POSITION_AUX15] = N_("Auxiliary 15"),
137 [PA_CHANNEL_POSITION_AUX16] = N_("Auxiliary 16"),
138 [PA_CHANNEL_POSITION_AUX17] = N_("Auxiliary 17"),
139 [PA_CHANNEL_POSITION_AUX18] = N_("Auxiliary 18"),
140 [PA_CHANNEL_POSITION_AUX19] = N_("Auxiliary 19"),
141 [PA_CHANNEL_POSITION_AUX20] = N_("Auxiliary 20"),
142 [PA_CHANNEL_POSITION_AUX21] = N_("Auxiliary 21"),
143 [PA_CHANNEL_POSITION_AUX22] = N_("Auxiliary 22"),
144 [PA_CHANNEL_POSITION_AUX23] = N_("Auxiliary 23"),
145 [PA_CHANNEL_POSITION_AUX24] = N_("Auxiliary 24"),
146 [PA_CHANNEL_POSITION_AUX25] = N_("Auxiliary 25"),
147 [PA_CHANNEL_POSITION_AUX26] = N_("Auxiliary 26"),
148 [PA_CHANNEL_POSITION_AUX27] = N_("Auxiliary 27"),
149 [PA_CHANNEL_POSITION_AUX28] = N_("Auxiliary 28"),
150 [PA_CHANNEL_POSITION_AUX29] = N_("Auxiliary 29"),
151 [PA_CHANNEL_POSITION_AUX30] = N_("Auxiliary 30"),
152 [PA_CHANNEL_POSITION_AUX31] = N_("Auxiliary 31"),
154 [PA_CHANNEL_POSITION_TOP_CENTER] = N_("Top Center"),
156 [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = N_("Top Front Center"),
157 [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = N_("Top Front Left"),
158 [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = N_("Top Front Right"),
160 [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = N_("Top Rear Center"),
161 [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = N_("Top Rear Left"),
162 [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = N_("Top Rear Right")
165 pa_channel_map* pa_channel_map_init(pa_channel_map *m) {
171 for (c = 0; c < PA_CHANNELS_MAX; c++)
172 m->map[c] = PA_CHANNEL_POSITION_INVALID;
177 pa_channel_map* pa_channel_map_init_mono(pa_channel_map *m) {
180 pa_channel_map_init(m);
183 m->map[0] = PA_CHANNEL_POSITION_MONO;
187 pa_channel_map* pa_channel_map_init_stereo(pa_channel_map *m) {
190 pa_channel_map_init(m);
193 m->map[0] = PA_CHANNEL_POSITION_LEFT;
194 m->map[1] = PA_CHANNEL_POSITION_RIGHT;
198 pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels, pa_channel_map_def_t def) {
200 pa_assert(channels > 0);
201 pa_assert(channels <= PA_CHANNELS_MAX);
202 pa_assert(def < PA_CHANNEL_MAP_DEF_MAX);
204 pa_channel_map_init(m);
206 m->channels = (uint8_t) channels;
209 case PA_CHANNEL_MAP_AIFF:
211 /* This is somewhat compatible with RFC3551 */
215 m->map[0] = PA_CHANNEL_POSITION_MONO;
219 m->map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
220 m->map[1] = PA_CHANNEL_POSITION_SIDE_LEFT;
221 m->map[2] = PA_CHANNEL_POSITION_FRONT_CENTER;
222 m->map[3] = PA_CHANNEL_POSITION_FRONT_RIGHT;
223 m->map[4] = PA_CHANNEL_POSITION_SIDE_RIGHT;
224 m->map[5] = PA_CHANNEL_POSITION_LFE;
228 m->map[2] = PA_CHANNEL_POSITION_FRONT_CENTER;
229 m->map[3] = PA_CHANNEL_POSITION_REAR_LEFT;
230 m->map[4] = PA_CHANNEL_POSITION_REAR_RIGHT;
234 m->map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
235 m->map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
239 m->map[0] = PA_CHANNEL_POSITION_LEFT;
240 m->map[1] = PA_CHANNEL_POSITION_RIGHT;
241 m->map[2] = PA_CHANNEL_POSITION_CENTER;
245 m->map[0] = PA_CHANNEL_POSITION_LEFT;
246 m->map[1] = PA_CHANNEL_POSITION_CENTER;
247 m->map[2] = PA_CHANNEL_POSITION_RIGHT;
248 m->map[3] = PA_CHANNEL_POSITION_LFE;
255 case PA_CHANNEL_MAP_ALSA:
259 m->map[0] = PA_CHANNEL_POSITION_MONO;
263 m->map[6] = PA_CHANNEL_POSITION_SIDE_LEFT;
264 m->map[7] = PA_CHANNEL_POSITION_SIDE_RIGHT;
268 m->map[5] = PA_CHANNEL_POSITION_LFE;
272 m->map[4] = PA_CHANNEL_POSITION_FRONT_CENTER;
276 m->map[2] = PA_CHANNEL_POSITION_REAR_LEFT;
277 m->map[3] = PA_CHANNEL_POSITION_REAR_RIGHT;
281 m->map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
282 m->map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
289 case PA_CHANNEL_MAP_AUX: {
292 for (i = 0; i < channels; i++)
293 m->map[i] = PA_CHANNEL_POSITION_AUX0 + i;
298 case PA_CHANNEL_MAP_WAVEEX:
302 m->map[0] = PA_CHANNEL_POSITION_MONO;
306 m->map[15] = PA_CHANNEL_POSITION_TOP_REAR_LEFT;
307 m->map[16] = PA_CHANNEL_POSITION_TOP_REAR_CENTER;
308 m->map[17] = PA_CHANNEL_POSITION_TOP_REAR_RIGHT;
312 m->map[12] = PA_CHANNEL_POSITION_TOP_FRONT_LEFT;
313 m->map[13] = PA_CHANNEL_POSITION_TOP_FRONT_CENTER;
314 m->map[14] = PA_CHANNEL_POSITION_TOP_FRONT_RIGHT;
318 m->map[11] = PA_CHANNEL_POSITION_TOP_CENTER;
322 m->map[9] = PA_CHANNEL_POSITION_SIDE_LEFT;
323 m->map[10] = PA_CHANNEL_POSITION_SIDE_RIGHT;
327 m->map[8] = PA_CHANNEL_POSITION_REAR_CENTER;
331 m->map[6] = PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER;
332 m->map[7] = PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER;
336 m->map[4] = PA_CHANNEL_POSITION_REAR_LEFT;
337 m->map[5] = PA_CHANNEL_POSITION_REAR_RIGHT;
341 m->map[3] = PA_CHANNEL_POSITION_LFE;
345 m->map[2] = PA_CHANNEL_POSITION_FRONT_CENTER;
349 m->map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
350 m->map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
357 case PA_CHANNEL_MAP_OSS:
361 m->map[0] = PA_CHANNEL_POSITION_MONO;
365 m->map[6] = PA_CHANNEL_POSITION_REAR_LEFT;
366 m->map[7] = PA_CHANNEL_POSITION_REAR_RIGHT;
370 m->map[4] = PA_CHANNEL_POSITION_SIDE_LEFT;
371 m->map[5] = PA_CHANNEL_POSITION_SIDE_RIGHT;
375 m->map[3] = PA_CHANNEL_POSITION_LFE;
379 m->map[2] = PA_CHANNEL_POSITION_FRONT_CENTER;
383 m->map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
384 m->map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
393 pa_assert_not_reached();
397 pa_channel_map* pa_channel_map_init_extend(pa_channel_map *m, unsigned channels, pa_channel_map_def_t def) {
401 pa_assert(channels > 0);
402 pa_assert(channels <= PA_CHANNELS_MAX);
403 pa_assert(def < PA_CHANNEL_MAP_DEF_MAX);
405 pa_channel_map_init(m);
407 for (c = channels; c > 0; c--) {
409 if (pa_channel_map_init_auto(m, c, def)) {
412 for (; c < channels; c++) {
414 m->map[c] = PA_CHANNEL_POSITION_AUX0 + i;
418 m->channels = (uint8_t) channels;
427 const char* pa_channel_position_to_string(pa_channel_position_t pos) {
429 if (pos < 0 || pos >= PA_CHANNEL_POSITION_MAX)
435 const char* pa_channel_position_to_pretty_string(pa_channel_position_t pos) {
437 if (pos < 0 || pos >= PA_CHANNEL_POSITION_MAX)
442 return _(pretty_table[pos]);
445 int pa_channel_map_equal(const pa_channel_map *a, const pa_channel_map *b) {
451 pa_return_val_if_fail(pa_channel_map_valid(a), 0);
452 pa_return_val_if_fail(pa_channel_map_valid(b), 0);
454 if (a->channels != b->channels)
457 for (c = 0; c < a->channels; c++)
458 if (a->map[c] != b->map[c])
464 char* pa_channel_map_snprint(char *s, size_t l, const pa_channel_map *map) {
466 pa_bool_t first = TRUE;
475 if (!pa_channel_map_valid(map)) {
476 pa_snprintf(s, l, _("(invalid)"));
482 for (channel = 0; channel < map->channels && l > 1; channel++) {
483 l -= pa_snprintf(e, l, "%s%s",
485 pa_channel_position_to_string(map->map[channel]));
494 pa_channel_map *pa_channel_map_parse(pa_channel_map *rmap, const char *s) {
502 pa_channel_map_init(&map);
504 /* We don't need to match against the well known channel mapping
505 * "mono" here explicitly, because that can be understood as
506 * listing with one channel called "mono". */
508 if (pa_streq(s, "stereo")) {
510 map.map[0] = PA_CHANNEL_POSITION_LEFT;
511 map.map[1] = PA_CHANNEL_POSITION_RIGHT;
513 } else if (pa_streq(s, "surround-40")) {
515 map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
516 map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
517 map.map[2] = PA_CHANNEL_POSITION_REAR_LEFT;
518 map.map[3] = PA_CHANNEL_POSITION_REAR_RIGHT;
520 } else if (pa_streq(s, "surround-41")) {
522 map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
523 map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
524 map.map[2] = PA_CHANNEL_POSITION_REAR_LEFT;
525 map.map[3] = PA_CHANNEL_POSITION_REAR_RIGHT;
526 map.map[4] = PA_CHANNEL_POSITION_LFE;
528 } else if (pa_streq(s, "surround-50")) {
530 map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
531 map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
532 map.map[2] = PA_CHANNEL_POSITION_REAR_LEFT;
533 map.map[3] = PA_CHANNEL_POSITION_REAR_RIGHT;
534 map.map[4] = PA_CHANNEL_POSITION_FRONT_CENTER;
536 } else if (pa_streq(s, "surround-51")) {
538 map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
539 map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
540 map.map[2] = PA_CHANNEL_POSITION_REAR_LEFT;
541 map.map[3] = PA_CHANNEL_POSITION_REAR_RIGHT;
542 map.map[4] = PA_CHANNEL_POSITION_FRONT_CENTER;
543 map.map[5] = PA_CHANNEL_POSITION_LFE;
545 } else if (pa_streq(s, "surround-71")) {
547 map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
548 map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
549 map.map[2] = PA_CHANNEL_POSITION_REAR_LEFT;
550 map.map[3] = PA_CHANNEL_POSITION_REAR_RIGHT;
551 map.map[4] = PA_CHANNEL_POSITION_FRONT_CENTER;
552 map.map[5] = PA_CHANNEL_POSITION_LFE;
553 map.map[6] = PA_CHANNEL_POSITION_SIDE_LEFT;
554 map.map[7] = PA_CHANNEL_POSITION_SIDE_RIGHT;
561 while ((p = pa_split(s, ",", &state))) {
563 if (map.channels >= PA_CHANNELS_MAX) {
568 /* Some special aliases */
569 if (pa_streq(p, "left"))
570 map.map[map.channels++] = PA_CHANNEL_POSITION_LEFT;
571 else if (pa_streq(p, "right"))
572 map.map[map.channels++] = PA_CHANNEL_POSITION_RIGHT;
573 else if (pa_streq(p, "center"))
574 map.map[map.channels++] = PA_CHANNEL_POSITION_CENTER;
575 else if (pa_streq(p, "subwoofer"))
576 map.map[map.channels++] = PA_CHANNEL_POSITION_SUBWOOFER;
578 pa_channel_position_t i;
580 for (i = 0; i < PA_CHANNEL_POSITION_MAX; i++)
581 if (strcmp(p, table[i]) == 0) {
582 map.map[map.channels++] = i;
586 if (i >= PA_CHANNEL_POSITION_MAX) {
597 if (!pa_channel_map_valid(&map))
604 int pa_channel_map_valid(const pa_channel_map *map) {
609 if (map->channels <= 0 || map->channels > PA_CHANNELS_MAX)
612 for (c = 0; c < map->channels; c++)
613 if (map->map[c] < 0 || map->map[c] >= PA_CHANNEL_POSITION_MAX)
619 int pa_channel_map_compatible(const pa_channel_map *map, const pa_sample_spec *ss) {
623 pa_return_val_if_fail(pa_channel_map_valid(map), 0);
624 pa_return_val_if_fail(pa_sample_spec_valid(ss), 0);
626 return map->channels == ss->channels;
629 int pa_channel_map_superset(const pa_channel_map *a, const pa_channel_map *b) {
630 pa_bitset_t in_a[PA_BITSET_ELEMENTS(PA_CHANNEL_POSITION_MAX)];
636 pa_return_val_if_fail(pa_channel_map_valid(a), 0);
637 pa_return_val_if_fail(pa_channel_map_valid(b), 0);
639 memset(in_a, 0, sizeof(in_a));
641 for (i = 0; i < a->channels; i++)
642 pa_bitset_set(in_a, a->map[i], TRUE);
644 for (i = 0; i < b->channels; i++)
645 if (!pa_bitset_get(in_a, b->map[i]))
651 int pa_channel_map_can_balance(const pa_channel_map *map) {
653 pa_bool_t left = FALSE, right = FALSE;
657 pa_return_val_if_fail(pa_channel_map_valid(map), 0);
659 for (c = 0; c < map->channels; c++) {
661 switch (map->map[c]) {
662 case PA_CHANNEL_POSITION_LEFT:
663 case PA_CHANNEL_POSITION_REAR_LEFT:
664 case PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER:
665 case PA_CHANNEL_POSITION_SIDE_LEFT:
666 case PA_CHANNEL_POSITION_TOP_FRONT_LEFT:
667 case PA_CHANNEL_POSITION_TOP_REAR_LEFT:
671 case PA_CHANNEL_POSITION_RIGHT:
672 case PA_CHANNEL_POSITION_REAR_RIGHT:
673 case PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER:
674 case PA_CHANNEL_POSITION_SIDE_RIGHT:
675 case PA_CHANNEL_POSITION_TOP_FRONT_RIGHT:
676 case PA_CHANNEL_POSITION_TOP_REAR_RIGHT:
691 int pa_channel_map_can_fade(const pa_channel_map *map) {
693 pa_bool_t front = FALSE, rear = FALSE;
697 pa_return_val_if_fail(pa_channel_map_valid(map), 0);
699 for (c = 0; c < map->channels; c++) {
701 switch (map->map[c]) {
702 case PA_CHANNEL_POSITION_FRONT_LEFT:
703 case PA_CHANNEL_POSITION_FRONT_RIGHT:
704 case PA_CHANNEL_POSITION_FRONT_CENTER:
705 case PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER:
706 case PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER:
707 case PA_CHANNEL_POSITION_TOP_FRONT_LEFT:
708 case PA_CHANNEL_POSITION_TOP_FRONT_RIGHT:
709 case PA_CHANNEL_POSITION_TOP_FRONT_CENTER:
713 case PA_CHANNEL_POSITION_REAR_LEFT:
714 case PA_CHANNEL_POSITION_REAR_RIGHT:
715 case PA_CHANNEL_POSITION_REAR_CENTER:
716 case PA_CHANNEL_POSITION_TOP_REAR_LEFT:
717 case PA_CHANNEL_POSITION_TOP_REAR_RIGHT:
718 case PA_CHANNEL_POSITION_TOP_REAR_CENTER:
733 const char* pa_channel_map_to_name(const pa_channel_map *map) {
734 pa_bitset_t in_map[PA_BITSET_ELEMENTS(PA_CHANNEL_POSITION_MAX)];
739 pa_return_val_if_fail(pa_channel_map_valid(map), NULL);
741 memset(in_map, 0, sizeof(in_map));
743 for (c = 0; c < map->channels; c++)
744 pa_bitset_set(in_map, map->map[c], TRUE);
746 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
747 PA_CHANNEL_POSITION_MONO, -1))
750 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
751 PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, -1))
754 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
755 PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
756 PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, -1))
757 return "surround-40";
759 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
760 PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
761 PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT,
762 PA_CHANNEL_POSITION_LFE, -1))
763 return "surround-41";
765 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
766 PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
767 PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT,
768 PA_CHANNEL_POSITION_FRONT_CENTER, -1))
769 return "surround-50";
771 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
772 PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
773 PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT,
774 PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE, -1))
775 return "surround-51";
777 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
778 PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
779 PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT,
780 PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE,
781 PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT, -1))
782 return "surround-71";
787 const char* pa_channel_map_to_pretty_name(const pa_channel_map *map) {
788 pa_bitset_t in_map[PA_BITSET_ELEMENTS(PA_CHANNEL_POSITION_MAX)];
793 pa_return_val_if_fail(pa_channel_map_valid(map), NULL);
795 memset(in_map, 0, sizeof(in_map));
797 for (c = 0; c < map->channels; c++)
798 pa_bitset_set(in_map, map->map[c], TRUE);
802 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
803 PA_CHANNEL_POSITION_MONO, -1))
806 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
807 PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, -1))
810 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
811 PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
812 PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, -1))
813 return _("Surround 4.0");
815 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
816 PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
817 PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT,
818 PA_CHANNEL_POSITION_LFE, -1))
819 return _("Surround 4.1");
821 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
822 PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
823 PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT,
824 PA_CHANNEL_POSITION_FRONT_CENTER, -1))
825 return _("Surround 5.0");
827 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
828 PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
829 PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT,
830 PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE, -1))
831 return _("Surround 5.1");
833 if (pa_bitset_equals(in_map, PA_CHANNEL_POSITION_MAX,
834 PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
835 PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT,
836 PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE,
837 PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT, -1))
838 return _("Surround 7.1");