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135 lines
4.9 KiB
135 lines
4.9 KiB
/* |
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* DCA compatible decoder |
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* Copyright (C) 2004 Gildas Bazin |
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* Copyright (C) 2004 Benjamin Zores |
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* Copyright (C) 2006 Benjamin Larsson |
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* Copyright (C) 2007 Konstantin Shishkov |
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* Copyright (C) 2016 foo86 |
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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_DCA_H |
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#define AVCODEC_DCA_H |
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#include <stdint.h> |
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#include "libavutil/internal.h" |
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#include "libavutil/intreadwrite.h" |
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enum DCASpeaker { |
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DCA_SPEAKER_C, DCA_SPEAKER_L, DCA_SPEAKER_R, DCA_SPEAKER_Ls, |
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DCA_SPEAKER_Rs, DCA_SPEAKER_LFE1, DCA_SPEAKER_Cs, DCA_SPEAKER_Lsr, |
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DCA_SPEAKER_Rsr, DCA_SPEAKER_Lss, DCA_SPEAKER_Rss, DCA_SPEAKER_Lc, |
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DCA_SPEAKER_Rc, DCA_SPEAKER_Lh, DCA_SPEAKER_Ch, DCA_SPEAKER_Rh, |
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DCA_SPEAKER_LFE2, DCA_SPEAKER_Lw, DCA_SPEAKER_Rw, DCA_SPEAKER_Oh, |
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DCA_SPEAKER_Lhs, DCA_SPEAKER_Rhs, DCA_SPEAKER_Chr, DCA_SPEAKER_Lhr, |
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DCA_SPEAKER_Rhr, DCA_SPEAKER_Cl, DCA_SPEAKER_Ll, DCA_SPEAKER_Rl, |
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DCA_SPEAKER_RSV1, DCA_SPEAKER_RSV2, DCA_SPEAKER_RSV3, DCA_SPEAKER_RSV4, |
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DCA_SPEAKER_COUNT |
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}; |
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enum DCASpeakerMask { |
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DCA_SPEAKER_MASK_C = 0x00000001, |
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DCA_SPEAKER_MASK_L = 0x00000002, |
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DCA_SPEAKER_MASK_R = 0x00000004, |
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DCA_SPEAKER_MASK_Ls = 0x00000008, |
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DCA_SPEAKER_MASK_Rs = 0x00000010, |
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DCA_SPEAKER_MASK_LFE1 = 0x00000020, |
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DCA_SPEAKER_MASK_Cs = 0x00000040, |
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DCA_SPEAKER_MASK_Lsr = 0x00000080, |
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DCA_SPEAKER_MASK_Rsr = 0x00000100, |
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DCA_SPEAKER_MASK_Lss = 0x00000200, |
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DCA_SPEAKER_MASK_Rss = 0x00000400, |
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DCA_SPEAKER_MASK_Lc = 0x00000800, |
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DCA_SPEAKER_MASK_Rc = 0x00001000, |
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DCA_SPEAKER_MASK_Lh = 0x00002000, |
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DCA_SPEAKER_MASK_Ch = 0x00004000, |
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DCA_SPEAKER_MASK_Rh = 0x00008000, |
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DCA_SPEAKER_MASK_LFE2 = 0x00010000, |
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DCA_SPEAKER_MASK_Lw = 0x00020000, |
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DCA_SPEAKER_MASK_Rw = 0x00040000, |
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DCA_SPEAKER_MASK_Oh = 0x00080000, |
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DCA_SPEAKER_MASK_Lhs = 0x00100000, |
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DCA_SPEAKER_MASK_Rhs = 0x00200000, |
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DCA_SPEAKER_MASK_Chr = 0x00400000, |
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DCA_SPEAKER_MASK_Lhr = 0x00800000, |
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DCA_SPEAKER_MASK_Rhr = 0x01000000, |
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DCA_SPEAKER_MASK_Cl = 0x02000000, |
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DCA_SPEAKER_MASK_Ll = 0x04000000, |
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DCA_SPEAKER_MASK_Rl = 0x08000000, |
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}; |
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#define DCA_SPEAKER_LAYOUT_MONO (DCA_SPEAKER_MASK_C) |
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#define DCA_SPEAKER_LAYOUT_STEREO (DCA_SPEAKER_MASK_L | DCA_SPEAKER_MASK_R) |
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#define DCA_SPEAKER_LAYOUT_2POINT1 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_LFE1) |
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#define DCA_SPEAKER_LAYOUT_3_0 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_C) |
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#define DCA_SPEAKER_LAYOUT_2_1 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_Cs) |
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#define DCA_SPEAKER_LAYOUT_3_1 (DCA_SPEAKER_LAYOUT_3_0 | DCA_SPEAKER_MASK_Cs) |
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#define DCA_SPEAKER_LAYOUT_2_2 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_Ls | DCA_SPEAKER_MASK_Rs) |
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#define DCA_SPEAKER_LAYOUT_5POINT0 (DCA_SPEAKER_LAYOUT_3_0 | DCA_SPEAKER_MASK_Ls | DCA_SPEAKER_MASK_Rs) |
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#define DCA_SPEAKER_LAYOUT_5POINT1 (DCA_SPEAKER_LAYOUT_5POINT0 | DCA_SPEAKER_MASK_LFE1) |
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#define DCA_SPEAKER_LAYOUT_7POINT0_WIDE (DCA_SPEAKER_LAYOUT_5POINT0 | DCA_SPEAKER_MASK_Lw | DCA_SPEAKER_MASK_Rw) |
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#define DCA_SPEAKER_LAYOUT_7POINT1_WIDE (DCA_SPEAKER_LAYOUT_7POINT0_WIDE | DCA_SPEAKER_MASK_LFE1) |
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#define DCA_HAS_STEREO(mask) \ |
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((mask & DCA_SPEAKER_LAYOUT_STEREO) == DCA_SPEAKER_LAYOUT_STEREO) |
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enum DCARepresentationType { |
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DCA_REPR_TYPE_LtRt = 2, |
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DCA_REPR_TYPE_LhRh = 3 |
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}; |
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enum DCAExtensionMask { |
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DCA_CSS_CORE = 0x001, |
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DCA_CSS_XXCH = 0x002, |
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DCA_CSS_X96 = 0x004, |
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DCA_CSS_XCH = 0x008, |
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DCA_CSS_MASK = 0x00f, |
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DCA_EXSS_CORE = 0x010, |
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DCA_EXSS_XBR = 0x020, |
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DCA_EXSS_XXCH = 0x040, |
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DCA_EXSS_X96 = 0x080, |
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DCA_EXSS_LBR = 0x100, |
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DCA_EXSS_XLL = 0x200, |
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DCA_EXSS_RSV1 = 0x400, |
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DCA_EXSS_RSV2 = 0x800, |
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DCA_EXSS_MASK = 0xff0, |
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}; |
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enum DCADownMixType { |
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DCA_DMIX_TYPE_1_0, |
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DCA_DMIX_TYPE_LoRo, |
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DCA_DMIX_TYPE_LtRt, |
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DCA_DMIX_TYPE_3_0, |
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DCA_DMIX_TYPE_2_1, |
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DCA_DMIX_TYPE_2_2, |
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DCA_DMIX_TYPE_3_1, |
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DCA_DMIX_TYPE_COUNT |
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}; |
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extern av_export const uint32_t avpriv_dca_sample_rates[16]; |
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/** |
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* Convert bitstream to one representation based on sync marker |
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*/ |
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int avpriv_dca_convert_bitstream(const uint8_t *src, int src_size, uint8_t *dst, |
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int max_size); |
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#endif /* AVCODEC_DCA_H */
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