58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
|
/*
|
||
|
|
* Common code between Nellymoser encoder and decoder
|
||
|
|
* Copyright (c) 2007 a840bda5870ba11f19698ff6eb9581dfb0f95fa5,
|
||
|
|
* 539459aeb7d425140b62a3ec7dbf6dc8e408a306, and
|
||
|
|
* 520e17cd55896441042b14df2566a6eb610ed444
|
||
|
|
* Copyright (c) 2007 Loic Minier <lool at dooz.org>
|
||
|
|
* Benjamin Larsson
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
||
|
|
* copy of this software and associated documentation files (the "Software"),
|
||
|
|
* to deal in the Software without restriction, including without limitation
|
||
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
||
|
|
* Software is furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||
|
|
* DEALINGS IN THE SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @file
|
||
|
|
* The 3 alphanumeric copyright notices are md5summed they are from the original
|
||
|
|
* implementors. The original code is available from http://code.google.com/p/nelly2pcm/
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef AVCODEC_NELLYMOSER_H
|
||
|
|
#define AVCODEC_NELLYMOSER_H
|
||
|
|
|
||
|
|
#include "avcodec.h"
|
||
|
|
|
||
|
|
#define NELLY_BANDS 23
|
||
|
|
#define NELLY_BLOCK_LEN 64
|
||
|
|
#define NELLY_HEADER_BITS 116
|
||
|
|
#define NELLY_DETAIL_BITS 198
|
||
|
|
#define NELLY_BUF_LEN 128
|
||
|
|
#define NELLY_FILL_LEN 124
|
||
|
|
#define NELLY_BIT_CAP 6
|
||
|
|
#define NELLY_BASE_OFF 4228
|
||
|
|
#define NELLY_BASE_SHIFT 19
|
||
|
|
#define NELLY_SAMPLES (2 * NELLY_BUF_LEN)
|
||
|
|
|
||
|
|
extern const float ff_nelly_dequantization_table[127];
|
||
|
|
extern const uint8_t ff_nelly_band_sizes_table[NELLY_BANDS];
|
||
|
|
extern const uint16_t ff_nelly_init_table[64];
|
||
|
|
extern const int16_t ff_nelly_delta_table[32];
|
||
|
|
|
||
|
|
void ff_nelly_get_sample_bits(const float *buf, int *bits);
|
||
|
|
|
||
|
|
#endif /* AVCODEC_NELLYMOSER_H */
|