mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
25c8507818
Also remove other unnecessary headers and include headers directly while at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/*
|
|
* Direct Stream Digital (DSD) decoder
|
|
* based on BSD licensed dsd2pcm by Sebastian Gesemann
|
|
* Copyright (c) 2009, 2011 Sebastian Gesemann. All rights reserved.
|
|
* Copyright (c) 2014 Peter Ross
|
|
*
|
|
* 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_DSD_H
|
|
#define AVCODEC_DSD_H
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#define HTAPS 48 /** number of FIR constants */
|
|
#define FIFOSIZE 16 /** must be a power of two */
|
|
#define FIFOMASK (FIFOSIZE - 1) /** bit mask for FIFO offsets */
|
|
|
|
#if FIFOSIZE * 8 < HTAPS * 2
|
|
#error "FIFOSIZE too small"
|
|
#endif
|
|
|
|
/**
|
|
* Per-channel buffer
|
|
*/
|
|
typedef struct DSDContext {
|
|
uint8_t buf[FIFOSIZE];
|
|
unsigned pos;
|
|
} DSDContext;
|
|
|
|
void ff_init_dsd_data(void);
|
|
|
|
void ff_dsd2pcm_translate(DSDContext* s, size_t samples, int lsbf,
|
|
const uint8_t *src, ptrdiff_t src_stride,
|
|
float *dst, ptrdiff_t dst_stride);
|
|
#endif /* AVCODEC_DSD_H */
|