/* ** Copyright (C) 2009-2011 Erik de Castro Lopo ** ** This program 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 2.1 of the License, or ** (at your option) any later version. ** ** This program 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 Lesser General Public License for more details. ** ** You should have received a copy of the GNU Lesser General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* ** Mostly from "Apple Core Audio Format Specification 1.0": ** ** http://developer.apple.com/documentation/MusicAudio/Reference/CAFSpec/CAFSpec.pdf */ #include "sfconfig.h" #include #include #include #include "sndfile.h" #include "common.h" #include "chanmap.h" static const AIFF_CAF_CHANNEL_MAP zero_chan [] = { { (0 << 16) | 0, NULL, "Use channel descriptions." }, { (1 << 16) | 0, NULL, "Use channel bitmap." } } ; /* zero_chan */ static const int one_chan_mono [1] = { SF_CHANNEL_MAP_MONO } ; static const AIFF_CAF_CHANNEL_MAP one_chan [] = { { (100 << 16) | 1, one_chan_mono, "mono" } } ; /* one_chan */ static const int two_channel_stereo [2] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT } ; static const AIFF_CAF_CHANNEL_MAP two_chan [] = { { (101 << 16) | 2, two_channel_stereo, "stereo (L, R)" }, { (102 << 16) | 2, two_channel_stereo, "stereo headphones (L, R)" }, #if 0 { (103 << 16) | 2, NULL, "matrix stereo (Lt, Rt)" }, { (104 << 16) | 2, NULL, "2 channels (mid, side)" }, { (105 << 16) | 2, NULL, "coincident mic pair" }, { (106 << 16) | 2, NULL, "binaural stereo (L, R)" } #endif } ; /* two_chan */ static const int three_channel_mpeg_30a [3] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER } ; static const int three_channel_mpeg_30b [3] = { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT } ; static const int three_channel_itu_21 [3] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_CENTER } ; static const int three_channel_dvd_4 [3] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_LFE } ; static const AIFF_CAF_CHANNEL_MAP three_chan [] = { { (113 << 16) | 3, three_channel_mpeg_30a, "MPEG 3 0 A (L, R, C)" }, { (114 << 16) | 3, three_channel_mpeg_30b, "MPEG 3 0 B (C, L, R)" }, { (131 << 16) | 3, three_channel_itu_21, "ITU 2.1 (L, R, Cs)" }, { (133 << 16) | 3, three_channel_dvd_4, "DVD 4 (L, R, LFE)" } } ; /* three_chan */ static const int four_channel_ambisonc_b [4] = { SF_CHANNEL_MAP_AMBISONIC_B_W, SF_CHANNEL_MAP_AMBISONIC_B_X, SF_CHANNEL_MAP_AMBISONIC_B_Y, SF_CHANNEL_MAP_AMBISONIC_B_Z } ; static const int four_channel_quad [4] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; static const int four_channel_mpeg_40a [4] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_REAR_CENTER } ; static const int four_channel_mpeg_40b [4] = { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_CENTER } ; static const int four_channel_itu_23 [4] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; static const int four_channel_dvd_5 [4] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_LFE, SF_CHANNEL_MAP_REAR_CENTER } ; static const int four_channel_dvd_10 [4] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LFE } ; static const AIFF_CAF_CHANNEL_MAP four_chan [] = { { (107 << 16) | 4, four_channel_ambisonc_b, "ambisonic B (W, X, Y, Z)" }, { (108 << 16) | 4, four_channel_quad, "quad (Lfront, Rfront, Lrear, Rrear)" }, { (115 << 16) | 4, four_channel_mpeg_40a, "MPEG 4.0 A (L, R, C, Cs)" }, { (116 << 16) | 4, four_channel_mpeg_40b, "MPEG 4.0 B (C, L, R, Cs)" }, { (132 << 16) | 4, four_channel_itu_23, "ITU 2.3 (L, R, Ls, Rs)" }, { (134 << 16) | 4, four_channel_dvd_5, "DVD 5 (L, R, LFE, Cs)" }, { (136 << 16) | 4, four_channel_dvd_10, "DVD 10 (L, R, C, LFE)" } } ; /* four_chan */ static const int five_channel_pentagonal [5] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_CENTER } ; static const int five_channel_mpeg_50_a [5] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; static const int five_channel_mpeg_50_b [5] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_CENTER } ; static const int five_channel_mpeg_50_c [5] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; static const int five_channel_mpeg_50_d [5] = { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; static const int five_channel_dvd_6 [5] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_LFE, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; static const int five_channel_dvd_11 [5] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LFE, SF_CHANNEL_MAP_REAR_CENTER } ; static const int five_channel_dvd_18 [5] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_LFE } ; static const AIFF_CAF_CHANNEL_MAP five_chan [] = { { (109 << 16) | 5, five_channel_pentagonal, "pentagonal (L, R, Lrear, Rrear, C)" }, { (117 << 16) | 5, five_channel_mpeg_50_a, "MPEG 5.0 A (L, R, C, Ls, Rs)" }, { (118 << 16) | 5, five_channel_mpeg_50_b, "MPEG 5.0 B (L, R, Ls, Rs, C)" }, { (119 << 16) | 5, five_channel_mpeg_50_c, "MPEG 5.0 C (L, C, R, Ls, Rs,)" }, { (120 << 16) | 5, five_channel_mpeg_50_d, "MPEG 5.0 D (C, L, R, Ls, Rs)" }, { (135 << 16) | 5, five_channel_dvd_6, "DVD 6 (L, R, LFE, Ls, Rs)" }, { (137 << 16) | 5, five_channel_dvd_11, "DVD 11 (L, R, C, LFE, Cs)" }, { (138 << 16) | 5, five_channel_dvd_18, "DVD 18 (L, R, Ls, Rs, LFE)" } } ; /* five_chan */ static const int six_channel_mpeg_51_a [6] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LFE, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; static const int six_channel_mpeg_51_b [6] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LFE } ; static const int six_channel_mpeg_51_c [6] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_LFE } ; static const int six_channel_mpeg_51_d [6] = { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_LFE } ; static const int six_channel_audio_unit_60 [6] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_REAR_CENTER } ; static const int six_channel_aac_60 [6] = { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_REAR_CENTER } ; static const AIFF_CAF_CHANNEL_MAP six_chan [] = { { (110 << 16) | 6, NULL, "hexagonal (L, R, Lr, Rr, C, Rear)" }, { (121 << 16) | 6, six_channel_mpeg_51_a, "MPEG 5.1 A (L, R, C, LFE, Ls, Rs)" }, { (122 << 16) | 6, six_channel_mpeg_51_b, "MPEG 5.1 B (L, R, Ls, Rs, C, LFE)" }, { (123 << 16) | 6, six_channel_mpeg_51_c, "MPEG 5.1 C (L, C, R, Ls, Rs, LFE)" }, { (124 << 16) | 6, six_channel_mpeg_51_d, "MPEG 5.1 D (C, L, R, Ls, Rs, LFE)" }, { (139 << 16) | 6, six_channel_audio_unit_60, "AudioUnit 6.0 (L, R, Ls, Rs, C, Cs)" }, { (141 << 16) | 6, six_channel_aac_60, "AAC 6.0 (C, L, R, Ls, Rs, Cs)" } } ; /* six_chan */ static const int six_channel_mpeg_61a [7] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LFE, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_REAR_CENTER } ; static const int six_channel_aac_61 [7] = { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_REAR_CENTER, SF_CHANNEL_MAP_LFE } ; static const AIFF_CAF_CHANNEL_MAP seven_chan [] = { { (125 << 16) | 7, six_channel_mpeg_61a, "MPEG 6.1 A (L, R, C, LFE, Ls, Rs, Cs)" }, { (140 << 16) | 7, NULL, "AudioUnit 7.0 (L, R, Ls, Rs, C, Rls, Rrs)" }, { (142 << 16) | 7, six_channel_aac_61, "AAC 6.1 (C, L, R, Ls, Rs, Cs, Lfe)" }, { (143 << 16) | 7, NULL, "AAC 7.0 (C, L, R, Ls, Rs, Rls, Rrs,)" } } ; /* seven_chan */ static const AIFF_CAF_CHANNEL_MAP eight_chan [] = { { (111 << 16) | 8, NULL, // front left, front right, rear left, rear right, // front center, rear center, side left, side right "octagonal (Lf, Rf, Lr, Rr, Cf, Cr, Ls, Rs)" }, { (112 << 16) | 8, NULL, // left, right, rear left, rear right // top left, top right, top rear left, top rear right "cube (L, R, Lrear, Rrear, Ltop, Rtop, Ltoprear, Rtoprear)" }, { (126 << 16) | 8, NULL, "MPEG 7.1 A (L, R, C, LFE, Ls, Rs, Lc, Rc)" }, { (127 << 16) | 8, NULL, "MPEG 7.1 B (C, Lc, Rc, L, R, Ls, Rs, LFE)" }, { (128 << 16) | 8, NULL, "MPEG 7.1 C (L, R, C, LFE, Ls, R, Rls, Rrs)" }, { (129 << 16) | 8, NULL, "Emagic Default 7.1 (L, R, Ls, Rs, C, LFE, Lc, Rc)" }, { (130 << 16) | 8, NULL, // (ITU_5_1 plus a matrix encoded stereo mix) "SMPTE DTV (L, R, C, LFE, Ls, Rs, Lt, Rt)" }, { (144 << 16) | 8, NULL, "AAC octagonal (C, L, R, Ls, Rs, Rls, Rrs, Cs)" } } ; /* eight_chan */ #if 0 TMH_10_2_std = (145 << 16) | 16, // L R C Vhc Lsd Rsd Ls Rs Vhl Vhr Lw Rw Csd Cs LFE1 LFE2 TMH_10_2_full = (146 << 16) | 21, // TMH_10_2_std plus: Lc Rc HI VI Haptic #endif typedef struct { const AIFF_CAF_CHANNEL_MAP * map ; int len ; } MAP_MAP ; static const MAP_MAP map [] = { { zero_chan, ARRAY_LEN (zero_chan) }, { one_chan, ARRAY_LEN (one_chan) }, { two_chan, ARRAY_LEN (two_chan) }, { three_chan, ARRAY_LEN (three_chan) }, { four_chan, ARRAY_LEN (four_chan) }, { five_chan, ARRAY_LEN (five_chan) }, { six_chan, ARRAY_LEN (six_chan) }, { seven_chan, ARRAY_LEN (seven_chan) }, { eight_chan, ARRAY_LEN (eight_chan) } } ; /* map */ int aiff_caf_find_channel_layout_tag (const int *chan_map, int channels) { const AIFF_CAF_CHANNEL_MAP * curr_map ; unsigned k, len ; if (channels < 1 || channels > ARRAY_LEN (map)) return 0 ; curr_map = map [channels].map ; len = map [channels].len ; for (k = 0 ; k < len ; k++) if (curr_map [k].channel_map != NULL) if (memcmp (chan_map, curr_map [k].channel_map, channels * sizeof (chan_map [0])) == 0) return curr_map [k].channel_layout_tag ; return 0 ; } /* aiff_caf_find_channel_layout_tag */ const AIFF_CAF_CHANNEL_MAP * aiff_caf_of_channel_layout_tag (int tag) { const AIFF_CAF_CHANNEL_MAP * curr_map ; unsigned k, len ; int channels = tag & 0xffff ; if (channels < 0 || channels > ARRAY_LEN (map)) return NULL ; curr_map = map [channels].map ; len = map [channels].len ; for (k = 0 ; k < len ; k++) if (curr_map [k].channel_layout_tag == tag) return curr_map + k ; return NULL ; } /* aiff_caf_of_channel_layout_tag */