mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
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8ba08f3029
Makes it possible to define audio channels and position with a predefined layout string. It is easier and less error prone to say "5.1" than to spell out [ FL FR FC LFE RL RR ]. AUX channels have a special syntax. AUX<N> will make <N> AUX channels. Easier to say AUX128 than to write an array with the 128 AUX channels.
174 lines
8.5 KiB
C
174 lines
8.5 KiB
C
/* Simple Plugin API */
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/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#ifndef SPA_AUDIO_LAYOUT_H
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#define SPA_AUDIO_LAYOUT_H
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#include <spa/utils/endian.h>
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#include <spa/param/audio/raw.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \addtogroup spa_param
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* \{
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*/
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struct spa_audio_layout_info {
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uint32_t n_channels;
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uint32_t position[SPA_AUDIO_MAX_CHANNELS];
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/* padding may follow to allow more channels */
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};
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#define SPA_AUDIO_LAYOUT_INFO_MAX_POSITION(size) (((size)-offsetof(struct spa_audio_layout_info,position))/sizeof(uint32_t))
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#define SPA_AUDIO_LAYOUT_Mono 1, { SPA_AUDIO_CHANNEL_MONO, }
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#define SPA_AUDIO_LAYOUT_Stereo 2, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, }
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#define SPA_AUDIO_LAYOUT_Quad 4, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, }
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#define SPA_AUDIO_LAYOUT_Pentagonal 5, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, \
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SPA_AUDIO_CHANNEL_FC, }
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#define SPA_AUDIO_LAYOUT_Hexagonal 6, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_RC, }
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#define SPA_AUDIO_LAYOUT_Octagonal 8, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_RC, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_Cube 8, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, \
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SPA_AUDIO_CHANNEL_TFL, SPA_AUDIO_CHANNEL_TFR, \
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SPA_AUDIO_CHANNEL_TRL, SPA_AUDIO_CHANNEL_TRR, }
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#define SPA_AUDIO_LAYOUT_MPEG_1_0 SPA_AUDIO_LAYOUT_Mono
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#define SPA_AUDIO_LAYOUT_MPEG_2_0 SPA_AUDIO_LAYOUT_Stereo
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#define SPA_AUDIO_LAYOUT_MPEG_3_0A 3, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, }
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#define SPA_AUDIO_LAYOUT_MPEG_3_0B 3, { SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_FL, \
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SPA_AUDIO_CHANNEL_FR, }
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#define SPA_AUDIO_LAYOUT_MPEG_4_0A 4, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_RC, }
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#define SPA_AUDIO_LAYOUT_MPEG_4_0B 4, { SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_FL, \
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SPA_AUDIO_CHANNEL_FR, SPA_AUDIO_CHANNEL_RC, }
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#define SPA_AUDIO_LAYOUT_MPEG_5_0A 5, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_SL, \
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SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_MPEG_5_0B 5, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, \
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SPA_AUDIO_CHANNEL_FC, }
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#define SPA_AUDIO_LAYOUT_MPEG_5_0C 5, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FC, \
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SPA_AUDIO_CHANNEL_FR, SPA_AUDIO_CHANNEL_SL, \
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SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_MPEG_5_0D 5, { SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_FL, \
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SPA_AUDIO_CHANNEL_FR, SPA_AUDIO_CHANNEL_SL, \
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SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_MPEG_5_1A 6, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_MPEG_5_1B 6, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, }
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#define SPA_AUDIO_LAYOUT_MPEG_5_1C 6, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FC, \
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SPA_AUDIO_CHANNEL_FR, SPA_AUDIO_CHANNEL_SL, \
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SPA_AUDIO_CHANNEL_SR, SPA_AUDIO_CHANNEL_LFE, }
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#define SPA_AUDIO_LAYOUT_MPEG_5_1D 6, { SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_FL, \
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SPA_AUDIO_CHANNEL_FR, SPA_AUDIO_CHANNEL_SL, \
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SPA_AUDIO_CHANNEL_SR, SPA_AUDIO_CHANNEL_LFE, }
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#define SPA_AUDIO_LAYOUT_MPEG_6_1A 7, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, \
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SPA_AUDIO_CHANNEL_RC, }
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#define SPA_AUDIO_LAYOUT_MPEG_7_1A 8, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_MPEG_7_1B 8, { SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_SL, \
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SPA_AUDIO_CHANNEL_SR, SPA_AUDIO_CHANNEL_FL, \
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SPA_AUDIO_CHANNEL_FR, SPA_AUDIO_CHANNEL_RL, \
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SPA_AUDIO_CHANNEL_RR, SPA_AUDIO_CHANNEL_LFE, }
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#define SPA_AUDIO_LAYOUT_MPEG_7_1C 8, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, }
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#define SPA_AUDIO_LAYOUT_2_1 3, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_LFE, }
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#define SPA_AUDIO_LAYOUT_2RC 3, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_RC, }
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#define SPA_AUDIO_LAYOUT_2FC 3, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, }
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#define SPA_AUDIO_LAYOUT_3_1 4, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, }
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#define SPA_AUDIO_LAYOUT_4_0 4, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_RC, }
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#define SPA_AUDIO_LAYOUT_2_2 4, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_4_1 5, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_RC, }
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#define SPA_AUDIO_LAYOUT_5_0 5, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_SL, \
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SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_5_0R 5, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_RL, \
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SPA_AUDIO_CHANNEL_RR, }
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#define SPA_AUDIO_LAYOUT_5_1 6, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_5_1R 6, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, }
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#define SPA_AUDIO_LAYOUT_6_0 6, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_RC, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_6_0F 6, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FLC, SPA_AUDIO_CHANNEL_FRC, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_6_1 7, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_RC, SPA_AUDIO_CHANNEL_SL, \
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SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_6_1F 7, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, \
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SPA_AUDIO_CHANNEL_RC, }
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#define SPA_AUDIO_LAYOUT_7_0 7, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_RL, \
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SPA_AUDIO_CHANNEL_RR, SPA_AUDIO_CHANNEL_SL, \
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SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_7_0F 7, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_FLC, \
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SPA_AUDIO_CHANNEL_FRC, SPA_AUDIO_CHANNEL_SL, \
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SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_7_1 8, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_7_1W 8, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_FLC, SPA_AUDIO_CHANNEL_FRC, \
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SPA_AUDIO_CHANNEL_SL, SPA_AUDIO_CHANNEL_SR, }
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#define SPA_AUDIO_LAYOUT_7_1WR 8, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
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SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_LFE, \
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SPA_AUDIO_CHANNEL_RL, SPA_AUDIO_CHANNEL_RR, \
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SPA_AUDIO_CHANNEL_FLC, SPA_AUDIO_CHANNEL_FRC, }
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/**
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* \}
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*/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* SPA_AUDIO_LAYOUT_H */
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