mirror of https://github.com/FFmpeg/FFmpeg.git
Move AC3HeaderInfo into ac3_parser_internal.h and the rest into a new header ac3defs.h. This also breaks an include cycle of ac3.h and ac3tab.h (the latter now only needs ac3defs.h). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>release/5.1
Andreas Rheinhardt
3 years ago
parent
cbd75ecc18
commit
104abea646
18 changed files with 159 additions and 124 deletions
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/*
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* Common AC-3 definitions |
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg 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 GNU |
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* 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 |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_AC3DEFS_H |
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#define AVCODEC_AC3DEFS_H |
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#define EAC3_MAX_CHANNELS 16 /**< maximum number of channels in EAC3 */ |
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#define AC3_MAX_CHANNELS 7 /**< maximum number of channels, including coupling channel */ |
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#define CPL_CH 0 /**< coupling channel index */ |
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#define AC3_MAX_COEFS 256 |
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#define AC3_BLOCK_SIZE 256 |
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#define AC3_MAX_BLOCKS 6 |
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#define AC3_FRAME_SIZE (AC3_MAX_BLOCKS * 256) |
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#define AC3_WINDOW_SIZE (AC3_BLOCK_SIZE * 2) |
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#define AC3_CRITICAL_BANDS 50 |
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#define AC3_MAX_CPL_BANDS 18 |
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/* exponent encoding strategy */ |
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#define EXP_REUSE 0 |
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#define EXP_NEW 1 |
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#define EXP_D15 1 |
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#define EXP_D25 2 |
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#define EXP_D45 3 |
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/** Delta bit allocation strategy */ |
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typedef enum { |
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DBA_REUSE = 0, |
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DBA_NEW, |
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DBA_NONE, |
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DBA_RESERVED |
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} AC3DeltaStrategy; |
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/** Channel mode (audio coding mode) */ |
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typedef enum { |
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AC3_CHMODE_DUALMONO = 0, |
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AC3_CHMODE_MONO, |
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AC3_CHMODE_STEREO, |
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AC3_CHMODE_3F, |
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AC3_CHMODE_2F1R, |
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AC3_CHMODE_3F1R, |
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AC3_CHMODE_2F2R, |
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AC3_CHMODE_3F2R |
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} AC3ChannelMode; |
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/** Dolby Surround mode */ |
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typedef enum AC3DolbySurroundMode { |
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AC3_DSURMOD_NOTINDICATED = 0, |
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AC3_DSURMOD_OFF, |
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AC3_DSURMOD_ON, |
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AC3_DSURMOD_RESERVED |
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} AC3DolbySurroundMode; |
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/** Dolby Surround EX mode */ |
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typedef enum AC3DolbySurroundEXMode { |
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AC3_DSUREXMOD_NOTINDICATED = 0, |
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AC3_DSUREXMOD_OFF, |
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AC3_DSUREXMOD_ON, |
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AC3_DSUREXMOD_PLIIZ |
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} AC3DolbySurroundEXMode; |
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/** Dolby Headphone mode */ |
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typedef enum AC3DolbyHeadphoneMode { |
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AC3_DHEADPHONMOD_NOTINDICATED = 0, |
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AC3_DHEADPHONMOD_OFF, |
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AC3_DHEADPHONMOD_ON, |
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AC3_DHEADPHONMOD_RESERVED |
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} AC3DolbyHeadphoneMode; |
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/** Preferred Stereo Downmix mode */ |
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typedef enum AC3PreferredStereoDownmixMode { |
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AC3_DMIXMOD_NOTINDICATED = 0, |
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AC3_DMIXMOD_LTRT, |
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AC3_DMIXMOD_LORO, |
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AC3_DMIXMOD_DPLII // reserved value in A/52, but used by encoders to indicate DPL2
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} AC3PreferredStereoDownmixMode; |
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typedef enum { |
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EAC3_FRAME_TYPE_INDEPENDENT = 0, |
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EAC3_FRAME_TYPE_DEPENDENT, |
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EAC3_FRAME_TYPE_AC3_CONVERT, |
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EAC3_FRAME_TYPE_RESERVED |
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} EAC3FrameType; |
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#endif /* AVCODEC_AC3DEFS_H */ |
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