FFmpeg
mlpdsp.h
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1 /*
2  * MLP codec common header file
3  * Copyright (c) 2007-2008 Ian Caulfield
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVCODEC_MLPDSP_H
23 #define AVCODEC_MLPDSP_H
24 
25 #include <stdint.h>
26 #include "mlp.h"
27 
29  const int32_t *coeffs,
30  const uint8_t *bypassed_lsbs,
31  const int8_t *noise_buffer,
32  int index,
33  unsigned int dest_ch,
34  uint16_t blockpos,
35  unsigned int maxchan,
36  int matrix_noise_shift,
37  int access_unit_size_pow2,
38  int32_t mask);
39 
40 int32_t ff_mlp_pack_output(int32_t lossless_check_data,
41  uint16_t blockpos,
42  int32_t (*sample_buffer)[MAX_CHANNELS],
43  void *data,
44  uint8_t *ch_assign,
45  int8_t *output_shift,
46  uint8_t max_matrix_channel,
47  int is32);
48 
49 typedef struct MLPDSPContext {
51  int firorder, int iirorder,
52  unsigned int filter_shift, int32_t mask,
53  int blocksize, int32_t *sample_buffer);
55  const int32_t *coeffs,
56  const uint8_t *bypassed_lsbs,
57  const int8_t *noise_buffer,
58  int index,
59  unsigned int dest_ch,
60  uint16_t blockpos,
61  unsigned int maxchan,
62  int matrix_noise_shift,
63  int access_unit_size_pow2,
64  int32_t mask);
66  int8_t *output_shift,
67  uint8_t max_matrix_channel,
68  int is32))(int32_t, uint16_t, int32_t (*)[], void *, uint8_t*, int8_t *, uint8_t, int);
69  int32_t (*mlp_pack_output)(int32_t lossless_check_data,
70  uint16_t blockpos,
71  int32_t (*sample_buffer)[MAX_CHANNELS],
72  void *data,
73  uint8_t *ch_assign,
74  int8_t *output_shift,
75  uint8_t max_matrix_channel,
76  int is32);
78 
82 
83 #endif /* AVCODEC_MLPDSP_H */
void(* mlp_rematrix_channel)(int32_t *samples, const int32_t *coeffs, const uint8_t *bypassed_lsbs, const int8_t *noise_buffer, int index, unsigned int dest_ch, uint16_t blockpos, unsigned int maxchan, int matrix_noise_shift, int access_unit_size_pow2, int32_t mask)
Definition: mlpdsp.h:54
int32_t(*(* mlp_select_pack_output)(uint8_t *ch_assign, int8_t *output_shift, uint8_t max_matrix_channel, int is32))(int32_t
Definition: mlpdsp.h:65
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:100
static struct @315 state
uint8_t
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
int32_t(*(* uint16_t)
Definition: mlpdsp.h:68
void ff_mlpdsp_init(MLPDSPContext *c)
Definition: mlpdsp.c:128
static const uint16_t mask[17]
Definition: lzw.c:38
int32_t(* mlp_pack_output)(int32_t lossless_check_data, uint16_t blockpos, int32_t(*sample_buffer)[MAX_CHANNELS], void *data, uint8_t *ch_assign, int8_t *output_shift, uint8_t max_matrix_channel, int is32)
Definition: mlpdsp.h:69
void ff_mlp_rematrix_channel(int32_t *samples, const int32_t *coeffs, const uint8_t *bypassed_lsbs, const int8_t *noise_buffer, int index, unsigned int dest_ch, uint16_t blockpos, unsigned int maxchan, int matrix_noise_shift, int access_unit_size_pow2, int32_t mask)
Definition: mlpdsp.c:60
void(* mlp_filter_channel)(int32_t *state, const int32_t *coeff, int firorder, int iirorder, unsigned int filter_shift, int32_t mask, int blocksize, int32_t *sample_buffer)
Definition: mlpdsp.h:50
int32_t
int index
Definition: gxfenc.c:89
void ff_mlpdsp_init_x86(MLPDSPContext *c)
Definition: mlpdsp_init.c:193
#define MAX_CHANNELS
Definition: aac.h:47
int
int32_t ff_mlp_pack_output(int32_t lossless_check_data, uint16_t blockpos, int32_t(*sample_buffer)[MAX_CHANNELS], void *data, uint8_t *ch_assign, int8_t *output_shift, uint8_t max_matrix_channel, int is32)
Definition: mlpdsp.c:100
static const double coeff[2][5]
Definition: vf_owdenoise.c:72
void ff_mlpdsp_init_arm(MLPDSPContext *c)
Filter the word “frame” indicates either a video frame or a group of audio samples
int32_t(*(*) int32_t void)
Definition: mlpdsp.h:68