mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-02 03:06:28 +02:00
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/*
|
|
* 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_DCADEC_H
|
|
#define AVCODEC_DCADEC_H
|
|
|
|
#include "libavutil/common.h"
|
|
#include "libavutil/float_dsp.h"
|
|
|
|
#include "avcodec.h"
|
|
#include "get_bits.h"
|
|
#include "dca.h"
|
|
#include "dcadsp.h"
|
|
#include "dca_core.h"
|
|
#include "dca_exss.h"
|
|
#include "dca_xll.h"
|
|
|
|
#define DCA_BUFFER_PADDING_SIZE 1024
|
|
|
|
#define DCA_PACKET_CORE 0x01
|
|
#define DCA_PACKET_EXSS 0x02
|
|
#define DCA_PACKET_XLL 0x04
|
|
#define DCA_PACKET_RECOVERY 0x08
|
|
|
|
typedef struct DCAContext {
|
|
const AVClass *class; ///< class for AVOptions
|
|
AVCodecContext *avctx;
|
|
|
|
DCACoreDecoder core; ///< Core decoder context
|
|
DCAExssParser exss; ///< EXSS parser context
|
|
DCAXllDecoder xll; ///< XLL decoder context
|
|
|
|
DCADSPContext dcadsp;
|
|
|
|
uint8_t *buffer; ///< Packet buffer
|
|
unsigned int buffer_size;
|
|
|
|
int packet; ///< Packet flags
|
|
|
|
int core_residual_valid; ///< Core valid for residual decoding
|
|
|
|
int request_channel_layout; ///< Converted from avctx.request_channel_layout
|
|
int core_only; ///< Core only decoding flag
|
|
} DCAContext;
|
|
|
|
int ff_dca_set_channel_layout(AVCodecContext *avctx, int *ch_remap, int dca_mask);
|
|
|
|
int ff_dca_check_crc(GetBitContext *s, int p1, int p2);
|
|
|
|
void ff_dca_downmix_to_stereo_fixed(DCADSPContext *dcadsp, int32_t **samples,
|
|
int *coeff_l, int nsamples, int ch_mask);
|
|
void ff_dca_downmix_to_stereo_float(AVFloatDSPContext *fdsp, float **samples,
|
|
int *coeff_l, int nsamples, int ch_mask);
|
|
|
|
static inline int ff_dca_seek_bits(GetBitContext *s, int p)
|
|
{
|
|
if (p < s->index || p > s->size_in_bits)
|
|
return -1;
|
|
s->index = p;
|
|
return 0;
|
|
}
|
|
|
|
#endif
|