diff options
Diffstat (limited to 'src/pulse/channelmap.c')
| -rw-r--r-- | src/pulse/channelmap.c | 254 |
1 files changed, 176 insertions, 78 deletions
diff --git a/src/pulse/channelmap.c b/src/pulse/channelmap.c index 69b09089..7348b32e 100644 --- a/src/pulse/channelmap.c +++ b/src/pulse/channelmap.c @@ -1,18 +1,19 @@ -/* $Id$ */ - /*** 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 @@ -24,34 +25,34 @@ #endif #include <stdlib.h> -#include <assert.h> #include <stdio.h> #include <string.h> #include <pulse/xmalloc.h> #include <pulsecore/core-util.h> +#include <pulsecore/macro.h> #include "channelmap.h" -const char *const table[] = { +const char *const table[PA_CHANNEL_POSITION_MAX] = { [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_AUX0] = "aux0", [PA_CHANNEL_POSITION_AUX1] = "aux1", [PA_CHANNEL_POSITION_AUX2] = "aux2", @@ -86,19 +87,82 @@ const char *const table[] = { [PA_CHANNEL_POSITION_AUX31] = "aux31", [PA_CHANNEL_POSITION_TOP_CENTER] = "top-center", - + + [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = "top-front-center", [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = "top-front-left", [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = "top-front-right", - [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = "top-front-center", + [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = "top-rear-center", [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = "top-rear-left", - [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = "top-rear-right", - [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = "top-rear-center" + [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = "top-rear-right" +}; + +const char *const pretty_table[PA_CHANNEL_POSITION_MAX] = { + [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] = "Low Frequency Emmiter", + + [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_AUX0] = "Auxiliary 0", + [PA_CHANNEL_POSITION_AUX1] = "Auxiliary 1", + [PA_CHANNEL_POSITION_AUX2] = "Auxiliary 2", + [PA_CHANNEL_POSITION_AUX3] = "Auxiliary 3", + [PA_CHANNEL_POSITION_AUX4] = "Auxiliary 4", + [PA_CHANNEL_POSITION_AUX5] = "Auxiliary 5", + [PA_CHANNEL_POSITION_AUX6] = "Auxiliary 6", + [PA_CHANNEL_POSITION_AUX7] = "Auxiliary 7", + [PA_CHANNEL_POSITION_AUX8] = "Auxiliary 8", + [PA_CHANNEL_POSITION_AUX9] = "Auxiliary 9", + [PA_CHANNEL_POSITION_AUX10] = "Auxiliary 10", + [PA_CHANNEL_POSITION_AUX11] = "Auxiliary 11", + [PA_CHANNEL_POSITION_AUX12] = "Auxiliary 12", + [PA_CHANNEL_POSITION_AUX13] = "Auxiliary 13", + [PA_CHANNEL_POSITION_AUX14] = "Auxiliary 14", + [PA_CHANNEL_POSITION_AUX15] = "Auxiliary 15", + [PA_CHANNEL_POSITION_AUX16] = "Auxiliary 16", + [PA_CHANNEL_POSITION_AUX17] = "Auxiliary 17", + [PA_CHANNEL_POSITION_AUX18] = "Auxiliary 18", + [PA_CHANNEL_POSITION_AUX19] = "Auxiliary 19", + [PA_CHANNEL_POSITION_AUX20] = "Auxiliary 20", + [PA_CHANNEL_POSITION_AUX21] = "Auxiliary 21", + [PA_CHANNEL_POSITION_AUX22] = "Auxiliary 22", + [PA_CHANNEL_POSITION_AUX23] = "Auxiliary 23", + [PA_CHANNEL_POSITION_AUX24] = "Auxiliary 24", + [PA_CHANNEL_POSITION_AUX25] = "Auxiliary 25", + [PA_CHANNEL_POSITION_AUX26] = "Auxiliary 26", + [PA_CHANNEL_POSITION_AUX27] = "Auxiliary 27", + [PA_CHANNEL_POSITION_AUX28] = "Auxiliary 28", + [PA_CHANNEL_POSITION_AUX29] = "Auxiliary 29", + [PA_CHANNEL_POSITION_AUX30] = "Auxiliary 30", + [PA_CHANNEL_POSITION_AUX31] = "Auxiliary 31", + + [PA_CHANNEL_POSITION_TOP_CENTER] = "Top Center", + + [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = "Top Front Center", + [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = "Top Front Left", + [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = "Top Front Right", + + [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = "Top Rear Center", + [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = "Top Rear left", + [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = "Top Rear Right" }; pa_channel_map* pa_channel_map_init(pa_channel_map *m) { unsigned c; - assert(m); + pa_assert(m); m->channels = 0; @@ -109,7 +173,7 @@ pa_channel_map* pa_channel_map_init(pa_channel_map *m) { } pa_channel_map* pa_channel_map_init_mono(pa_channel_map *m) { - assert(m); + pa_assert(m); pa_channel_map_init(m); @@ -119,7 +183,7 @@ pa_channel_map* pa_channel_map_init_mono(pa_channel_map *m) { } pa_channel_map* pa_channel_map_init_stereo(pa_channel_map *m) { - assert(m); + pa_assert(m); pa_channel_map_init(m); @@ -130,9 +194,9 @@ 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) { - assert(m); - assert(channels > 0); - assert(channels <= PA_CHANNELS_MAX); + pa_assert(m); + pa_assert(channels > 0); + pa_assert(channels <= PA_CHANNELS_MAX); pa_channel_map_init(m); @@ -140,14 +204,14 @@ pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels, p switch (def) { case PA_CHANNEL_MAP_AIFF: - + /* This is somewhat compatible with RFC3551 */ - + switch (channels) { case 1: m->map[0] = PA_CHANNEL_POSITION_MONO; return m; - + case 6: m->map[0] = PA_CHANNEL_POSITION_FRONT_LEFT; m->map[1] = PA_CHANNEL_POSITION_SIDE_LEFT; @@ -156,31 +220,31 @@ pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels, p m->map[4] = PA_CHANNEL_POSITION_SIDE_RIGHT; m->map[5] = PA_CHANNEL_POSITION_LFE; return m; - + case 5: m->map[2] = PA_CHANNEL_POSITION_FRONT_CENTER; m->map[3] = PA_CHANNEL_POSITION_REAR_LEFT; m->map[4] = 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; - + case 3: m->map[0] = PA_CHANNEL_POSITION_LEFT; m->map[1] = PA_CHANNEL_POSITION_RIGHT; m->map[2] = PA_CHANNEL_POSITION_CENTER; return m; - + case 4: m->map[0] = PA_CHANNEL_POSITION_LEFT; m->map[1] = PA_CHANNEL_POSITION_CENTER; m->map[2] = PA_CHANNEL_POSITION_RIGHT; m->map[3] = PA_CHANNEL_POSITION_LFE; return m; - + default: return NULL; } @@ -191,43 +255,43 @@ pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels, p 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; } case PA_CHANNEL_MAP_AUX: { unsigned i; - + if (channels >= PA_CHANNELS_MAX) return NULL; for (i = 0; i < channels; i++) m->map[i] = PA_CHANNEL_POSITION_AUX0 + i; - + return m; } @@ -237,55 +301,55 @@ pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels, p case 1: m->map[0] = PA_CHANNEL_POSITION_MONO; return m; - + case 18: m->map[15] = PA_CHANNEL_POSITION_TOP_REAR_LEFT; m->map[16] = PA_CHANNEL_POSITION_TOP_REAR_CENTER; m->map[17] = PA_CHANNEL_POSITION_TOP_REAR_RIGHT; /* Fall through */ - + case 15: m->map[12] = PA_CHANNEL_POSITION_TOP_FRONT_LEFT; m->map[13] = PA_CHANNEL_POSITION_TOP_FRONT_CENTER; m->map[14] = PA_CHANNEL_POSITION_TOP_FRONT_RIGHT; /* Fall through */ - + case 12: m->map[11] = PA_CHANNEL_POSITION_TOP_CENTER; /* Fall through */ - + case 11: m->map[9] = PA_CHANNEL_POSITION_SIDE_LEFT; m->map[10] = PA_CHANNEL_POSITION_SIDE_RIGHT; /* Fall through */ - + case 9: m->map[8] = PA_CHANNEL_POSITION_REAR_CENTER; /* Fall through */ - + case 8: m->map[6] = PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER; m->map[7] = PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER; /* Fall through */ - + case 6: m->map[4] = PA_CHANNEL_POSITION_REAR_LEFT; m->map[5] = PA_CHANNEL_POSITION_REAR_RIGHT; /* Fall through */ - + case 4: m->map[3] = PA_CHANNEL_POSITION_LFE; /* Fall through */ - + case 3: m->map[2] = PA_CHANNEL_POSITION_FRONT_CENTER; /* 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; } @@ -296,12 +360,12 @@ pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels, p case 1: m->map[0] = PA_CHANNEL_POSITION_MONO; return m; - + case 8: m->map[6] = PA_CHANNEL_POSITION_REAR_LEFT; m->map[7] = PA_CHANNEL_POSITION_REAR_RIGHT; /* Fall through */ - + case 6: m->map[4] = PA_CHANNEL_POSITION_SIDE_LEFT; m->map[5] = PA_CHANNEL_POSITION_SIDE_RIGHT; @@ -310,26 +374,54 @@ pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels, p case 4: m->map[3] = PA_CHANNEL_POSITION_LFE; /* Fall through */ - + case 3: m->map[2] = PA_CHANNEL_POSITION_FRONT_CENTER; /* 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; } - + default: return NULL; } } +pa_channel_map* pa_channel_map_init_extend(pa_channel_map *m, unsigned channels, pa_channel_map_def_t def) { + unsigned c; + + pa_assert(m); + pa_assert(channels > 0); + pa_assert(channels <= PA_CHANNELS_MAX); + + pa_channel_map_init(m); + + for (c = channels; c > 0; c--) { + + if (pa_channel_map_init_auto(m, c, def)) { + unsigned i = 0; + + for (; c < channels; c++) { + + m->map[c] = PA_CHANNEL_POSITION_AUX0 + i; + i++; + } + + m->channels = channels; + + return m; + } + } + + return NULL; +} const char* pa_channel_position_to_string(pa_channel_position_t pos) { @@ -339,15 +431,22 @@ const char* pa_channel_position_to_string(pa_channel_position_t pos) { return table[pos]; } +const char* pa_channel_position_to_pretty_string(pa_channel_position_t pos) { + if (pos < 0 || pos >= PA_CHANNEL_POSITION_MAX) + return NULL; + + return pretty_table[pos]; +} + int pa_channel_map_equal(const pa_channel_map *a, const pa_channel_map *b) { unsigned c; - - assert(a); - assert(b); + + pa_assert(a); + pa_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; @@ -359,15 +458,15 @@ 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); + + pa_assert(s); + pa_assert(l > 0); + pa_assert(map); *(e = s) = 0; for (channel = 0; channel < map->channels && l > 1; channel++) { - l -= snprintf(e, l, "%s%s", + l -= pa_snprintf(e, l, "%s%s", first ? "" : ",", pa_channel_position_to_string(map->map[channel])); @@ -382,9 +481,9 @@ pa_channel_map *pa_channel_map_parse(pa_channel_map *rmap, const char *s) { const char *state; pa_channel_map map; char *p; - - assert(rmap); - assert(s); + + pa_assert(rmap); + pa_assert(s); memset(&map, 0, sizeof(map)); @@ -397,14 +496,14 @@ pa_channel_map *pa_channel_map_parse(pa_channel_map *rmap, const char *s) { state = NULL; map.channels = 0; - + while ((p = pa_split(s, ",", &state))) { if (map.channels >= PA_CHANNELS_MAX) { pa_xfree(p); return NULL; } - + /* Some special aliases */ if (strcmp(p, "left") == 0) map.map[map.channels++] = PA_CHANNEL_POSITION_LEFT; @@ -416,13 +515,13 @@ pa_channel_map *pa_channel_map_parse(pa_channel_map *rmap, const char *s) { map.map[map.channels++] = PA_CHANNEL_POSITION_SUBWOOFER; else { pa_channel_position_t i; - + for (i = 0; i < PA_CHANNEL_POSITION_MAX; i++) if (strcmp(p, table[i]) == 0) { map.map[map.channels++] = i; break; } - + if (i >= PA_CHANNEL_POSITION_MAX) { pa_xfree(p); return NULL; @@ -433,24 +532,24 @@ pa_channel_map *pa_channel_map_parse(pa_channel_map *rmap, const char *s) { } finish: - + if (!pa_channel_map_valid(&map)) return NULL; - + *rmap = map; return rmap; } int pa_channel_map_valid(const pa_channel_map *map) { unsigned c; - - assert(map); + + pa_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; @@ -458,4 +557,3 @@ int pa_channel_map_valid(const pa_channel_map *map) { return 1; } - |