blob: 637d41a91889c3541eba7e5ca0e54e02a64a63cb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Miika Pekkarinen
* Copyright (C) 2012 Michael Sevakis
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "rbcodecconfig.h"
#include "platform.h"
#include "dsp_core.h"
#include "dsp_sample_io.h"
#include "dsp_proc_entry.h"
#include "fixedpoint.h"
/* increment the format version counter */
static void format_change_set(struct sample_io_data *this)
{
if (this->format_dirty)
return;
this->format.version = (uint8_t)(this->format.version + 1) ?: 1;
this->format_dirty = 1;
}
bool dsp_sample_io_configure(struct sample_io_data *this,
unsigned int setting,
intptr_t *value_p)
{
intptr_t value = *value_p;
switch (setting)
{
case DSP_INIT:
this->output_sampr = DSP_OUT_DEFAULT_HZ;
dsp_sample_input_init(this, (enum dsp_ids)value);
dsp_sample_output_init(this);
break;
case DSP_RESET:
/* Reset all sample descriptions to default */
format_change_set(this);
this->format.num_channels = 2;
this->format.frac_bits = WORD_FRACBITS;
this->format.output_scale = WORD_FRACBITS + 1 - NATIVE_DEPTH;
this->format.frequency = this->output_sampr;
this->format.codec_frequency = this->output_sampr;
this->sample_depth = NATIVE_DEPTH;
this->stereo_mode = STEREO_NONINTERLEAVED;
break;
case DSP_SET_FREQUENCY:
format_change_set(this);
value = value > 0 ? (unsigned int)value : this->output_sampr;
this->format.frequency = value;
this->format.codec_frequency = value;
break;
case DSP_SET_SAMPLE_DEPTH:
format_change_set(this);
this->format.frac_bits =
value <= NATIVE_DEPTH ? WORD_FRACBITS : value;
this->format.output_scale =
this->format.frac_bits + 1 - NATIVE_DEPTH;
this->sample_depth = value;
break;
case DSP_SET_STEREO_MODE:
format_change_set(this);
this->format.num_channels = value == STEREO_MONO ? 1 : 2;
this->stereo_mode = value;
break;
case DSP_FLUSH:
dsp_sample_input_flush(this);
dsp_sample_output_flush(this);
break;
case DSP_SET_PITCH:
format_change_set(this);
value = value > 0 ? value : (1 << 16);
this->format.frequency =
fp_mul(value, this->format.codec_frequency, 16);
break;
case DSP_SET_OUT_FREQUENCY:
value = value > 0 ? value : DSP_OUT_DEFAULT_HZ;
value = MIN(DSP_OUT_MAX_HZ, MAX(DSP_OUT_MIN_HZ, value));
*value_p = value;
if ((unsigned int)value == this->output_sampr)
return true; /* No change; don't broadcast */
this->output_sampr = value;
break;
case DSP_GET_OUT_FREQUENCY:
*value_p = this->output_sampr;
return true; /* Only I/O handles it */
}
return false;
}
|
