mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
164 lines
5.8 KiB
C
164 lines
5.8 KiB
C
/*
|
|
* DCA compatible decoder
|
|
* Copyright (C) 2004 Gildas Bazin
|
|
* Copyright (C) 2004 Benjamin Zores
|
|
* Copyright (C) 2006 Benjamin Larsson
|
|
* Copyright (C) 2007 Konstantin Shishkov
|
|
* Copyright (C) 2016 foo86
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVCODEC_DCA_H
|
|
#define AVCODEC_DCA_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "libavutil/common.h"
|
|
#include "libavutil/internal.h"
|
|
#include "libavutil/intreadwrite.h"
|
|
|
|
enum DCASpeaker {
|
|
DCA_SPEAKER_C, DCA_SPEAKER_L, DCA_SPEAKER_R, DCA_SPEAKER_Ls,
|
|
DCA_SPEAKER_Rs, DCA_SPEAKER_LFE1, DCA_SPEAKER_Cs, DCA_SPEAKER_Lsr,
|
|
DCA_SPEAKER_Rsr, DCA_SPEAKER_Lss, DCA_SPEAKER_Rss, DCA_SPEAKER_Lc,
|
|
DCA_SPEAKER_Rc, DCA_SPEAKER_Lh, DCA_SPEAKER_Ch, DCA_SPEAKER_Rh,
|
|
DCA_SPEAKER_LFE2, DCA_SPEAKER_Lw, DCA_SPEAKER_Rw, DCA_SPEAKER_Oh,
|
|
DCA_SPEAKER_Lhs, DCA_SPEAKER_Rhs, DCA_SPEAKER_Chr, DCA_SPEAKER_Lhr,
|
|
DCA_SPEAKER_Rhr, DCA_SPEAKER_Cl, DCA_SPEAKER_Ll, DCA_SPEAKER_Rl,
|
|
DCA_SPEAKER_RSV1, DCA_SPEAKER_RSV2, DCA_SPEAKER_RSV3, DCA_SPEAKER_RSV4,
|
|
|
|
DCA_SPEAKER_COUNT
|
|
};
|
|
|
|
enum DCASpeakerMask {
|
|
DCA_SPEAKER_MASK_C = 0x00000001,
|
|
DCA_SPEAKER_MASK_L = 0x00000002,
|
|
DCA_SPEAKER_MASK_R = 0x00000004,
|
|
DCA_SPEAKER_MASK_Ls = 0x00000008,
|
|
DCA_SPEAKER_MASK_Rs = 0x00000010,
|
|
DCA_SPEAKER_MASK_LFE1 = 0x00000020,
|
|
DCA_SPEAKER_MASK_Cs = 0x00000040,
|
|
DCA_SPEAKER_MASK_Lsr = 0x00000080,
|
|
DCA_SPEAKER_MASK_Rsr = 0x00000100,
|
|
DCA_SPEAKER_MASK_Lss = 0x00000200,
|
|
DCA_SPEAKER_MASK_Rss = 0x00000400,
|
|
DCA_SPEAKER_MASK_Lc = 0x00000800,
|
|
DCA_SPEAKER_MASK_Rc = 0x00001000,
|
|
DCA_SPEAKER_MASK_Lh = 0x00002000,
|
|
DCA_SPEAKER_MASK_Ch = 0x00004000,
|
|
DCA_SPEAKER_MASK_Rh = 0x00008000,
|
|
DCA_SPEAKER_MASK_LFE2 = 0x00010000,
|
|
DCA_SPEAKER_MASK_Lw = 0x00020000,
|
|
DCA_SPEAKER_MASK_Rw = 0x00040000,
|
|
DCA_SPEAKER_MASK_Oh = 0x00080000,
|
|
DCA_SPEAKER_MASK_Lhs = 0x00100000,
|
|
DCA_SPEAKER_MASK_Rhs = 0x00200000,
|
|
DCA_SPEAKER_MASK_Chr = 0x00400000,
|
|
DCA_SPEAKER_MASK_Lhr = 0x00800000,
|
|
DCA_SPEAKER_MASK_Rhr = 0x01000000,
|
|
DCA_SPEAKER_MASK_Cl = 0x02000000,
|
|
DCA_SPEAKER_MASK_Ll = 0x04000000,
|
|
DCA_SPEAKER_MASK_Rl = 0x08000000,
|
|
};
|
|
|
|
#define DCA_SPEAKER_LAYOUT_MONO (DCA_SPEAKER_MASK_C)
|
|
#define DCA_SPEAKER_LAYOUT_STEREO (DCA_SPEAKER_MASK_L | DCA_SPEAKER_MASK_R)
|
|
#define DCA_SPEAKER_LAYOUT_2POINT1 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_LFE1)
|
|
#define DCA_SPEAKER_LAYOUT_3_0 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_C)
|
|
#define DCA_SPEAKER_LAYOUT_2_1 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_Cs)
|
|
#define DCA_SPEAKER_LAYOUT_3_1 (DCA_SPEAKER_LAYOUT_3_0 | DCA_SPEAKER_MASK_Cs)
|
|
#define DCA_SPEAKER_LAYOUT_2_2 (DCA_SPEAKER_LAYOUT_STEREO | DCA_SPEAKER_MASK_Ls | DCA_SPEAKER_MASK_Rs)
|
|
#define DCA_SPEAKER_LAYOUT_5POINT0 (DCA_SPEAKER_LAYOUT_3_0 | DCA_SPEAKER_MASK_Ls | DCA_SPEAKER_MASK_Rs)
|
|
#define DCA_SPEAKER_LAYOUT_5POINT1 (DCA_SPEAKER_LAYOUT_5POINT0 | DCA_SPEAKER_MASK_LFE1)
|
|
#define DCA_SPEAKER_LAYOUT_7POINT0_WIDE (DCA_SPEAKER_LAYOUT_5POINT0 | DCA_SPEAKER_MASK_Lw | DCA_SPEAKER_MASK_Rw)
|
|
#define DCA_SPEAKER_LAYOUT_7POINT1_WIDE (DCA_SPEAKER_LAYOUT_7POINT0_WIDE | DCA_SPEAKER_MASK_LFE1)
|
|
|
|
#define DCA_HAS_STEREO(mask) \
|
|
((mask & DCA_SPEAKER_LAYOUT_STEREO) == DCA_SPEAKER_LAYOUT_STEREO)
|
|
|
|
enum DCASpeakerPair {
|
|
DCA_SPEAKER_PAIR_C = 0x0001,
|
|
DCA_SPEAKER_PAIR_LR = 0x0002,
|
|
DCA_SPEAKER_PAIR_LsRs = 0x0004,
|
|
DCA_SPEAKER_PAIR_LFE1 = 0x0008,
|
|
DCA_SPEAKER_PAIR_Cs = 0x0010,
|
|
DCA_SPEAKER_PAIR_LhRh = 0x0020,
|
|
DCA_SPEAKER_PAIR_LsrRsr = 0x0040,
|
|
DCA_SPEAKER_PAIR_Ch = 0x0080,
|
|
DCA_SPEAKER_PAIR_Oh = 0x0100,
|
|
DCA_SPEAKER_PAIR_LcRc = 0x0200,
|
|
DCA_SPEAKER_PAIR_LwRw = 0x0400,
|
|
DCA_SPEAKER_PAIR_LssRss = 0x0800,
|
|
DCA_SPEAKER_PAIR_LFE2 = 0x1000,
|
|
DCA_SPEAKER_PAIR_LhsRhs = 0x2000,
|
|
DCA_SPEAKER_PAIR_Chr = 0x4000,
|
|
DCA_SPEAKER_PAIR_LhrRhr = 0x8000
|
|
};
|
|
|
|
/**
|
|
* Return number of individual channels in DCASpeakerPair mask
|
|
*/
|
|
static inline int ff_dca_count_chs_for_mask(unsigned int mask)
|
|
{
|
|
return av_popcount((mask & 0xffff) | ((mask & 0xae66) << 16));
|
|
}
|
|
|
|
enum DCARepresentationType {
|
|
DCA_REPR_TYPE_LtRt = 2,
|
|
DCA_REPR_TYPE_LhRh = 3
|
|
};
|
|
|
|
enum DCAExtensionMask {
|
|
DCA_CSS_CORE = 0x001,
|
|
DCA_CSS_XXCH = 0x002,
|
|
DCA_CSS_X96 = 0x004,
|
|
DCA_CSS_XCH = 0x008,
|
|
DCA_CSS_MASK = 0x00f,
|
|
DCA_EXSS_CORE = 0x010,
|
|
DCA_EXSS_XBR = 0x020,
|
|
DCA_EXSS_XXCH = 0x040,
|
|
DCA_EXSS_X96 = 0x080,
|
|
DCA_EXSS_LBR = 0x100,
|
|
DCA_EXSS_XLL = 0x200,
|
|
DCA_EXSS_RSV1 = 0x400,
|
|
DCA_EXSS_RSV2 = 0x800,
|
|
DCA_EXSS_MASK = 0xff0,
|
|
};
|
|
|
|
enum DCADownMixType {
|
|
DCA_DMIX_TYPE_1_0,
|
|
DCA_DMIX_TYPE_LoRo,
|
|
DCA_DMIX_TYPE_LtRt,
|
|
DCA_DMIX_TYPE_3_0,
|
|
DCA_DMIX_TYPE_2_1,
|
|
DCA_DMIX_TYPE_2_2,
|
|
DCA_DMIX_TYPE_3_1,
|
|
|
|
DCA_DMIX_TYPE_COUNT
|
|
};
|
|
|
|
extern av_export const uint32_t avpriv_dca_sample_rates[16];
|
|
|
|
/**
|
|
* Convert bitstream to one representation based on sync marker
|
|
*/
|
|
int avpriv_dca_convert_bitstream(const uint8_t *src, int src_size, uint8_t *dst,
|
|
int max_size);
|
|
|
|
#endif /* AVCODEC_DCA_H */
|