2 * Copyright (C) <2008> Wim Taymans <wim.taymans@gmail.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
23 #include <gst/audio/audio.h>
24 #include <gst/audio/multichannel.h>
30 const GstAudioChannelPosition *pos;
33 static const GstAudioChannelPosition pos_4_1[] = {
34 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
35 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
36 GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
37 GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT
40 static const GstAudioChannelPosition pos_4_2[] = {
41 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
42 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
43 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
44 GST_AUDIO_CHANNEL_POSITION_LFE
47 static const GstAudioChannelPosition pos_4_3[] = {
48 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
49 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
50 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
51 GST_AUDIO_CHANNEL_POSITION_LFE
54 static const GstAudioChannelPosition pos_5_1[] = {
55 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
56 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
57 GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
58 GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
59 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER
62 static const GstAudioChannelPosition pos_6_1[] = {
63 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
64 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
65 GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
66 GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
67 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
68 GST_AUDIO_CHANNEL_POSITION_LFE
71 static const GstAudioChannelPosition pos_6_2[] = {
72 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
73 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
74 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
75 GST_AUDIO_CHANNEL_POSITION_LFE,
76 GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
77 GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT
80 static const GstAudioChannelPosition pos_8_1[] = {
81 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
82 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
83 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
84 GST_AUDIO_CHANNEL_POSITION_LFE,
85 GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
86 GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
87 GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
88 GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT
91 static const GstAudioChannelPosition pos_8_2[] = {
92 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
93 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
94 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
95 GST_AUDIO_CHANNEL_POSITION_LFE,
96 GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
97 GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
98 GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
99 GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT
102 static const GstAudioChannelPosition pos_8_3[] = {
103 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
104 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
105 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
106 GST_AUDIO_CHANNEL_POSITION_LFE,
107 GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
108 GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
109 GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
110 GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT
113 static const GstAudioChannelPosition pos_def_1[] = {
114 GST_AUDIO_CHANNEL_POSITION_FRONT_MONO
117 static const GstAudioChannelPosition pos_def_2[] = {
118 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
119 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT
122 static const GstAudioChannelPosition pos_def_3[] = {
123 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
124 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
125 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER
128 static const GstAudioChannelPosition pos_def_4[] = {
129 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
130 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
131 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
132 GST_AUDIO_CHANNEL_POSITION_LFE
135 static const GstAudioChannelPosition pos_def_5[] = {
136 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
137 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
138 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
139 GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
140 GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT
143 static const GstAudioChannelPosition pos_def_6[] = {
144 GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
145 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
146 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
147 GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
148 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
149 GST_AUDIO_CHANNEL_POSITION_LFE
152 static const GstRTPChannelOrder channel_orders[] =
155 { "DV.LRLsRs", 4, pos_4_1 },
156 { "DV.LRCS", 4, pos_4_2 },
157 { "DV.LRCWo", 4, pos_4_3 },
159 { "DV.LRLsRsC", 5, pos_5_1 },
161 { "DV.LRLsRsCS", 6, pos_6_1 },
162 { "DV.LmixRmixTWoQ1Q2", 6, pos_6_2 },
164 { "DV.LRCWoLsRsLmixRmix", 8, pos_8_1 },
165 { "DV.LRCWoLs1Rs1Ls2Rs2", 8, pos_8_2 },
166 { "DV.LRCWoLsRsLcRc", 8, pos_8_3 },
168 /* default layouts */
169 { NULL, 1, pos_def_1 },
170 { NULL, 2, pos_def_2 },
171 { NULL, 3, pos_def_3 },
172 { NULL, 4, pos_def_4 },
173 { NULL, 5, pos_def_5 },
174 { NULL, 6, pos_def_6 },
176 /* terminator, invalid entry */
180 const GstRTPChannelOrder * gst_rtp_channels_get_by_pos (gint channels,
181 const GstAudioChannelPosition *pos);
182 const GstRTPChannelOrder * gst_rtp_channels_get_by_order (gint channels,
184 const GstRTPChannelOrder * gst_rtp_channels_get_by_index (gint channels, guint idx);
186 GstAudioChannelPosition * gst_rtp_channels_create_default (gint channels);