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