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https://github.com/mpv-player/mpv
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3c2afd6786
Where 8 channel support is non-trivial (e.g. ao_dsound), at least ensure we fail gracefully. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29868 b3059339-0415-0410-9bf9-f77b7e298cf2
134 lines
6.1 KiB
C
134 lines
6.1 KiB
C
/*
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* common functions for reordering audio channels
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*
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* Copyright (C) 2007 Ulion <ulion A gmail P com>
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*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_REORDER_CH_H
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#define MPLAYER_REORDER_CH_H
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// L - Left
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// R - Right
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// C - Center
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// Ls - Left Surround
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// Rs - Right Surround
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// Cs - Center Surround
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// Rls - Rear Left Surround
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// Rrs - Rear Right Surround
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#define AF_LFE (1<<7)
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#define AF_CHANNEL_LAYOUT_MONO ((100<<8)|1)
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#define AF_CHANNEL_LAYOUT_STEREO ((101<<8)|2)
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#define AF_CHANNEL_LAYOUT_1_0 AF_CHANNEL_LAYOUT_MONO // C
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#define AF_CHANNEL_LAYOUT_2_0 AF_CHANNEL_LAYOUT_STEREO // L R
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#define AF_CHANNEL_LAYOUT_2_1 ((102<<8)|3) // L R LFE
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#define AF_CHANNEL_LAYOUT_3_0_A ((103<<8)|3) // L R C
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#define AF_CHANNEL_LAYOUT_3_0_B ((104<<8)|3) // C L R
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#define AF_CHANNEL_LAYOUT_4_0_A ((105<<8)|4) // L R C Cs
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#define AF_CHANNEL_LAYOUT_4_0_B ((106<<8)|4) // C L R Cs
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#define AF_CHANNEL_LAYOUT_4_0_C ((107<<8)|4) // L R Ls Rs
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#define AF_CHANNEL_LAYOUT_5_0_A ((108<<8)|5) // L R C Ls Rs
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#define AF_CHANNEL_LAYOUT_5_0_B ((109<<8)|5) // L R Ls Rs C
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#define AF_CHANNEL_LAYOUT_5_0_C ((110<<8)|5) // L C R Ls Rs
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#define AF_CHANNEL_LAYOUT_5_0_D ((111<<8)|5) // C L R Ls Rs
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#define AF_CHANNEL_LAYOUT_5_1_A ((112<<8)|6|AF_LFE) // L R C LFE Ls Rs
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#define AF_CHANNEL_LAYOUT_5_1_B ((113<<8)|6|AF_LFE) // L R Ls Rs C LFE
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#define AF_CHANNEL_LAYOUT_5_1_C ((114<<8)|6|AF_LFE) // L C R Ls Rs LFE
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#define AF_CHANNEL_LAYOUT_5_1_D ((115<<8)|6|AF_LFE) // C L R Ls Rs LFE
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#define AF_CHANNEL_LAYOUT_5_1_E ((116<<8)|6|AF_LFE) // LFE L C R Ls Rs
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#define AF_CHANNEL_LAYOUT_5_1_F ((117<<8)|6|AF_LFE) // C L R LFE Ls Rs
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#define AF_CHANNEL_LAYOUT_6_1_A ((118<<8)|7|AF_LFE) // L R C LFE Ls Rs Cs
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#define AF_CHANNEL_LAYOUT_7_1_A ((119<<8)|8|AF_LFE) // L R C LFE Ls Rs Rls Rrs
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#define AF_CHANNEL_LAYOUT_7_1_B ((120<<8)|8|AF_LFE) // L R Ls Rs C LFE Rls Rrs
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#define AF_CHANNEL_LAYOUT_7_1_C ((121<<8)|8|AF_LFE) // L C R Ls Rs LFE Rls Rrs
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#define AF_CHANNEL_LAYOUT_7_1_D ((122<<8)|8|AF_LFE) // C L R Ls Rs Rls Rrs LFE
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#define AF_CHANNEL_LAYOUT_7_1_F ((123<<8)|8|AF_LFE) // C L R LFE Ls Rs Rls Rrs
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#define AF_CHANNEL_LAYOUT_ALSA_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_B
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#define AF_CHANNEL_LAYOUT_ALSA_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_B
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#define AF_CHANNEL_LAYOUT_ALSA_8CH_DEFAULT AF_CHANNEL_LAYOUT_7_1_B
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#define AF_CHANNEL_LAYOUT_MPLAYER_5CH_DEFAULT AF_CHANNEL_LAYOUT_ALSA_5CH_DEFAULT
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#define AF_CHANNEL_LAYOUT_MPLAYER_6CH_DEFAULT AF_CHANNEL_LAYOUT_ALSA_6CH_DEFAULT
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#define AF_CHANNEL_LAYOUT_MPLAYER_8CH_DEFAULT AF_CHANNEL_LAYOUT_ALSA_8CH_DEFAULT
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#define AF_CHANNEL_LAYOUT_AAC_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_D
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#define AF_CHANNEL_LAYOUT_AAC_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_D
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#define AF_CHANNEL_LAYOUT_AAC_8CH_DEFAULT AF_CHANNEL_LAYOUT_7_1_D
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#define AF_CHANNEL_LAYOUT_WAVEEX_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_A
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#define AF_CHANNEL_LAYOUT_WAVEEX_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_A
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#define AF_CHANNEL_LAYOUT_WAVEEX_8CH_DEFAULT AF_CHANNEL_LAYOUT_7_1_A
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#define AF_CHANNEL_LAYOUT_LAVC_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_A
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#define AF_CHANNEL_LAYOUT_LAVC_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_A
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#define AF_CHANNEL_LAYOUT_LAVC_8CH_DEFAULT AF_CHANNEL_LAYOUT_7_1_A
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#define AF_CHANNEL_LAYOUT_VORBIS_5CH_DEFAULT AF_CHANNEL_LAYOUT_5_0_C
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#define AF_CHANNEL_LAYOUT_VORBIS_6CH_DEFAULT AF_CHANNEL_LAYOUT_5_1_C
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#define AF_CHANNEL_LAYOUT_VORBIS_8CH_DEFAULT AF_CHANNEL_LAYOUT_7_1_C
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#define AF_CHANNEL_MASK 0xFF
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#define AF_GET_CH_NUM(A) ((A)&0x7F)
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#define AF_GET_CH_NUM_WITH_LFE(A) ((A)&0xFF)
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#define AF_IS_SAME_CH_NUM(A,B) (((A)&0xFF)==((B)&0xFF))
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#define AF_IS_LAYOUT_SPECIFIED(A) ((A)&0xFFFFF800)
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#define AF_IS_LAYOUT_UNSPECIFIED(A) (!AF_IS_LAYOUT_SPECIFIED(A))
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/// Optimized channel reorder between channel layouts with same channel number.
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void reorder_channel_copy(void *src,
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int src_layout,
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void *dest,
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int dest_layout,
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int samples,
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int samplesize);
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/// Same with reorder_channel_copy, but works on single buffer.
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void reorder_channel(void *buf,
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int src_layout,
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int dest_layout,
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int samples,
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int samplesize);
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// Channel layout definitions for different audio sources or targets
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// When specified channel number, they will be map to the specific layouts.
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#define AF_CHANNEL_LAYOUT_ALSA_DEFAULT 0
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#define AF_CHANNEL_LAYOUT_AAC_DEFAULT 1
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#define AF_CHANNEL_LAYOUT_WAVEEX_DEFAULT 2
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#define AF_CHANNEL_LAYOUT_LAVC_DEFAULT 3
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#define AF_CHANNEL_LAYOUT_VORBIS_DEFAULT 4
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#define AF_CHANNEL_LAYOUT_SOURCE_NUM 5
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#define AF_CHANNEL_LAYOUT_MPLAYER_DEFAULT AF_CHANNEL_LAYOUT_ALSA_DEFAULT
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/// Optimized channel reorder between different audio sources and targets.
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void reorder_channel_copy_nch(void *src,
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int src_layout,
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void *dest,
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int dest_layout,
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int chnum,
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int samples,
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int samplesize);
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/// Same with reorder_channel_copy_nch, but works on single buffer.
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void reorder_channel_nch(void *buf,
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int src_layout,
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int dest_layout,
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int chnum,
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int samples,
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int samplesize);
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#endif /* MPLAYER_REORDER_CH_H */
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