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/*
* common functions for reordering audio channels
*
* Copyright (C) 2007 Ulion <ulion A gmail P com>
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License
* along with MPlayer; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef REORDER_CH_H
#define REORDER_CH_H
// L - Left
// R - Right
// C - Center
// Ls - Left Surround
// Rs - Right Surround
// Cs - Center Surround
// Rls - Rear Left Surround
// Rrs - Rear Right Surround
#define AF_LFE (1<<7)
#define AF_CHANNEL_LAYOUT_MONO ((100<<8)|1)
#define AF_CHANNEL_LAYOUT_STEREO ((101<<8)|2)
#define AF_CHANNEL_LAYOUT_1_0 AF_CHANNEL_LAYOUT_MONO // C
#define AF_CHANNEL_LAYOUT_2_0 AF_CHANNEL_LAYOUT_STEREO // L R
#define AF_CHANNEL_LAYOUT_2_1 ((102<<8)|3) // L R LFE
#define AF_CHANNEL_LAYOUT_3_0_A ((103<<8)|3) // L R C
#define AF_CHANNEL_LAYOUT_3_0_B ((104<<8)|3) // C L R
#define AF_CHANNEL_LAYOUT_4_0_A ((105<<8)|4) // L R C Cs
#define AF_CHANNEL_LAYOUT_4_0_B ((106<<8)|4) // C L R Cs
#define AF_CHANNEL_LAYOUT_4_0_C ((107<<8)|4) // L R Ls Rs
#define AF_CHANNEL_LAYOUT_5_0_A ((108<<8)|5) // L R C Ls Rs
#define AF_CHANNEL_LAYOUT_5_0_B ((109<<8)|5) // L R Ls Rs C
#define AF_CHANNEL_LAYOUT_5_0_C ((110<<8)|5) // L C R Ls Rs
#define AF_CHANNEL_LAYOUT_5_0_D ((111<<8)|5) // C L R Ls Rs
#define AF_CHANNEL_LAYOUT_5_1_A ((112<<8)|6|AF_LFE) // L R C LFE Ls Rs
#define AF_CHANNEL_LAYOUT_5_1_B ((113<<8)|6|AF_LFE) // L R Ls Rs C LFE
#define AF_CHANNEL_LAYOUT_5_1_C ((114<<8)|6|AF_LFE) // L C R Ls Rs LFE
#define AF_CHANNEL_LAYOUT_5_1_D ((115<<8)|6|AF_LFE) // C L R Ls Rs LFE
#define AF_CHANNEL_LAYOUT_5_1_E ((116<<8)|6|AF_LFE) // LFE L C R Ls Rs
#define AF_CHANNEL_LAYOUT_6_1_A ((117<<8)|7|AF_LFE) // L R C LFE Ls Rs Cs
#define AF_CHANNEL_LAYOUT_7_1_A ((118<<8)|8|AF_LFE) // L R C LFE Ls Rs Rls Rrs
#define AF_CHANNEL_LAYOUT_ALSA_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_B
#define AF_CHANNEL_LAYOUT_ALSA_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_B
#define AF_CHANNEL_LAYOUT_MPLAYER_5CH_DEFAULT AF_CHANNEL_LAYOUT_ALSA_5CH_DEFAULT
#define AF_CHANNEL_LAYOUT_MPLAYER_6CH_DEFAULT AF_CHANNEL_LAYOUT_ALSA_6CH_DEFAULT
#define AF_CHANNEL_LAYOUT_AAC_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_D
#define AF_CHANNEL_LAYOUT_AAC_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_D
#define AF_CHANNEL_LAYOUT_WAVEEX_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_A
#define AF_CHANNEL_LAYOUT_WAVEEX_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_A
#define AF_CHANNEL_LAYOUT_LAVC_AC3_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_C
#define AF_CHANNEL_LAYOUT_LAVC_AC3_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_C
#define AF_CHANNEL_LAYOUT_LAVC_LIBA52_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_C
#define AF_CHANNEL_LAYOUT_LAVC_LIBA52_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_E
#define AF_CHANNEL_LAYOUT_LAVC_DCA_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_D
#define AF_CHANNEL_LAYOUT_LAVC_DCA_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_D
#define AF_CHANNEL_MASK 0xFF
#define AF_GET_CH_NUM(A) ((A)&0x7F)
#define AF_GET_CH_NUM_WITH_LFE(A) ((A)&0xFF)
#define AF_IS_SAME_CH_NUM(A,B) (((A)&0xFF)==((B)&0xFF))
#define AF_IS_LAYOUT_SPECIFIED(A) ((A)&0xFFFFF800)
#define AF_IS_LAYOUT_UNSPECIFIED(A) (!AF_IS_LAYOUT_SPECIFIED(A))
/// Optimized channel reorder between channel layouts with same channel number.
void reorder_channel_copy(void *src,
int src_layout,
void *dest,
int dest_layout,
int samples,
int samplesize);
/// Same with reorder_channel_copy, but works on single buffer.
void reorder_channel(void *buf,
int src_layout,
int dest_layout,
int samples,
int samplesize);
// Channel layout definitions for different audio sources or targets
// When specified channel number, they will be map to the specific layouts.
#define AF_CHANNEL_LAYOUT_ALSA_DEFAULT 0
#define AF_CHANNEL_LAYOUT_AAC_DEFAULT 1
#define AF_CHANNEL_LAYOUT_WAVEEX_DEFAULT 2
#define AF_CHANNEL_LAYOUT_LAVC_AC3_DEFAULT 3
#define AF_CHANNEL_LAYOUT_LAVC_LIBA52_DEFAULT 4
#define AF_CHANNEL_LAYOUT_LAVC_DCA_DEFAULT 5
#define AF_CHANNEL_LAYOUT_SOURCE_NUM 6
#define AF_CHANNEL_LAYOUT_MPLAYER_DEFAULT AF_CHANNEL_LAYOUT_ALSA_DEFAULT
/// Optimized channel reorder between different audio sources and targets.
void reorder_channel_copy_nch(void *src,
int src_layout,
void *dest,
int dest_layout,
int chnum,
int samples,
int samplesize);
/// Same with reorder_channel_copy_nch, but works on single buffer.
void reorder_channel_nch(void *buf,
int src_layout,
int dest_layout,
int chnum,
int samples,
int samplesize);
#endif /* REORDER_CH_H */
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