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-rw-r--r--lib/rbcodec/dsp/dsp.h212
1 files changed, 131 insertions, 81 deletions
diff --git a/lib/rbcodec/dsp/dsp.h b/lib/rbcodec/dsp/dsp.h
index a99df17468..feac4aa845 100644
--- a/lib/rbcodec/dsp/dsp.h
+++ b/lib/rbcodec/dsp/dsp.h
@@ -18,109 +18,159 @@
18 * KIND, either express or implied. 18 * KIND, either express or implied.
19 * 19 *
20 ****************************************************************************/ 20 ****************************************************************************/
21
22#ifndef _DSP_H 21#ifndef _DSP_H
23#define _DSP_H 22#define _DSP_H
24 23
25#include <stdlib.h> 24struct dsp_config;
26#include <stdbool.h>
27 25
28#define NATIVE_FREQUENCY 44100 26/* Include all this junk here for now */
27#include "dsp_proc_settings.h"
29 28
30enum 29enum dsp_ids
31{ 30{
32 STEREO_INTERLEAVED = 0, 31 CODEC_IDX_AUDIO,
33 STEREO_NONINTERLEAVED,
34 STEREO_MONO,
35 STEREO_NUM_MODES,
36};
37
38enum
39{
40 CODEC_IDX_AUDIO = 0,
41 CODEC_IDX_VOICE, 32 CODEC_IDX_VOICE,
33 DSP_COUNT,
42}; 34};
43 35
44enum 36enum dsp_settings
45{ 37{
46 DSP_MYDSP = 1, 38 DSP_INIT, /* For dsp_init */
39 DSP_RESET,
47 DSP_SET_FREQUENCY, 40 DSP_SET_FREQUENCY,
48 DSP_SWITCH_FREQUENCY, 41 DSP_SWITCH_FREQUENCY = DSP_SET_FREQUENCY, /* deprecated */
49 DSP_SET_SAMPLE_DEPTH, 42 DSP_SET_SAMPLE_DEPTH,
50 DSP_SET_STEREO_MODE, 43 DSP_SET_STEREO_MODE,
51 DSP_RESET,
52 DSP_FLUSH, 44 DSP_FLUSH,
53 DSP_SET_TRACK_GAIN, 45 DSP_PROC_INIT,
54 DSP_SET_ALBUM_GAIN, 46 DSP_PROC_CLOSE,
55 DSP_SET_TRACK_PEAK, 47 DSP_PROC_SETTING, /* stage-specific should be this + id */
56 DSP_SET_ALBUM_PEAK,
57 DSP_CROSSFEED
58}; 48};
59 49
50#define NATIVE_FREQUENCY 44100 /* internal/output sample rate */
60 51
61/**************************************************************************** 52enum dsp_stereo_modes
62 * NOTE: Any assembly routines that use these structures must be updated
63 * if current data members are moved or changed.
64 */
65struct resample_data
66{ 53{
67 uint32_t delta; /* 00h */ 54 STEREO_INTERLEAVED,
68 uint32_t phase; /* 04h */ 55 STEREO_NONINTERLEAVED,
69 int32_t last_sample[2]; /* 08h */ 56 STEREO_MONO,
70 /* 10h */ 57 STEREO_NUM_MODES,
71}; 58};
72 59
73/* This is for passing needed data to external dsp routines. If another 60/* Format into for the buffer (if .valid == true) */
74 * dsp parameter needs to be passed, add to the end of the structure 61struct sample_format
75 * and remove from dsp_config.
76 * If another function type becomes assembly/external and requires dsp
77 * config info, add a pointer paramter of type "struct dsp_data *".
78 * If removing something from other than the end, reserve the spot or
79 * else update every implementation for every target.
80 * Be sure to add the offset of the new member for easy viewing as well. :)
81 * It is the first member of dsp_config and all members can be accessesed
82 * through the main aggregate but this is intended to make a safe haven
83 * for these items whereas the c part can be rearranged at will. dsp_data
84 * could even moved within dsp_config without disurbing the order.
85 */
86struct dsp_data
87{ 62{
88 int output_scale; /* 00h */ 63 uint8_t changed; /* 00h: 0=no change, 1=changed (is also index) */
89 int num_channels; /* 04h */ 64 uint8_t num_channels; /* 01h: number of channels of data */
90 struct resample_data resample_data; /* 08h */ 65 uint8_t frac_bits; /* 02h: number of fractional bits */
91 int32_t clip_min; /* 18h */ 66 uint8_t output_scale; /* 03h: output scaling shift */
92 int32_t clip_max; /* 1ch */ 67 int32_t frequency; /* 04h: pitch-adjusted sample rate */
93 int32_t gain; /* 20h - Note that this is in S8.23 format. */ 68 int32_t codec_frequency; /* 08h: codec-specifed sample rate */
94 int frac_bits; /* 24h */ 69 /* 0ch */
95 /* 28h */
96}; 70};
97 71
98struct dsp_config; 72/* Compare format data only */
73#define EQU_SAMPLE_FORMAT(f1, f2) \
74 (!memcmp(&(f1).num_channels, &(f2).num_channels, \
75 sizeof (f1) - sizeof ((f1).changed)))
76
77static inline void format_change_set(struct sample_format *f)
78 { f->changed = 1; }
79static inline void format_change_ack(struct sample_format *f)
80 { f->changed = 0; }
99 81
100int dsp_process(struct dsp_config *dsp, char *dest, 82/* Used by ASM routines - keep field order or else fix the functions */
101 const char *src[], int count); 83struct dsp_buffer
102int dsp_input_count(struct dsp_config *dsp, int count); 84{
103int dsp_output_count(struct dsp_config *dsp, int count); 85 int32_t remcount; /* 00h: Samples in buffer (In, Int, Out) */
104intptr_t dsp_configure(struct dsp_config *dsp, int setting, 86 union
87 {
88 const void *pin[2]; /* 04h: Channel pointers (In) */
89 int32_t *p32[2]; /* 04h: Channel pointers (Int) */
90 int16_t *p16out; /* 04h: DSP output buffer (Out) */
91 };
92 union
93 {
94 uint32_t proc_mask; /* 0Ch: In-place effects already appled to buffer
95 in order to avoid double-processing. Set
96 to zero on new buffer before passing to
97 DSP. */
98 int bufcount; /* 0Ch: Buffer length/dest buffer remaining
99 Basically, pay no attention unless it's
100 *your* new buffer and is used internally
101 or is specifically the final output
102 buffer. */
103 };
104 struct sample_format format; /* 10h: Buffer format data */
105 /* 1ch */
106};
107
108/* Remove samples from input buffer (In). Sample size is specified.
109 Provided to dsp_process(). */
110static inline void dsp_advance_buffer_input(struct dsp_buffer *buf,
111 int by_count,
112 size_t size_each)
113{
114 buf->remcount -= by_count;
115 buf->pin[0] += by_count * size_each;
116 buf->pin[1] += by_count * size_each;
117}
118
119/* Add samples to output buffer and update remaining space (Out).
120 Provided to dsp_process() */
121static inline void dsp_advance_buffer_output(struct dsp_buffer *buf,
122 int by_count)
123{
124 buf->bufcount -= by_count;
125 buf->remcount += by_count;
126 buf->p16out += 2 * by_count; /* Interleaved stereo */
127}
128
129/* Remove samples from internal input buffer (In, Int).
130 Provided to dsp_process() or by another processing stage. */
131static inline void dsp_advance_buffer32(struct dsp_buffer *buf,
132 int by_count)
133{
134 buf->remcount -= by_count;
135 buf->p32[0] += by_count;
136 buf->p32[1] += by_count;
137}
138
139/** For use by processing stages **/
140
141#define DSP_PRINT_FORMAT(name, id, format) \
142 DEBUGF("DSP format- " #name "\n" \
143 " id:%d chg:%c ch:%u fb:%u os:%u hz:%u chz:%u\n", \
144 (int)id, \
145 (format).changed ? 'y' : 'n', \
146 (unsigned int)(format).num_channels, \
147 (unsigned int)(format).frac_bits, \
148 (unsigned int)(format).output_scale, \
149 (unsigned int)(format).frequency, \
150 (unsigned int)(format).codec_frequency);
151
152/* Get DSP pointer */
153struct dsp_config * dsp_get_config(enum dsp_ids id);
154
155/* Get DSP id */
156enum dsp_ids dsp_get_id(const struct dsp_config *dsp);
157
158#if 0 /* Not needed now but enable if something must know this */
159/* Is the DSP processing a buffer? */
160bool dsp_is_busy(const struct dsp_config *dsp);
161#endif /* 0 */
162
163/** General DSP processing **/
164
165/* Process the given buffer - see implementation in dsp.c for more */
166void dsp_process(struct dsp_config *dsp, struct dsp_buffer *src,
167 struct dsp_buffer *dst);
168
169/* Change DSP settings */
170intptr_t dsp_configure(struct dsp_config *dsp, unsigned int setting,
105 intptr_t value); 171 intptr_t value);
106int get_replaygain_mode(bool have_track_gain, bool have_album_gain); 172
107void dsp_set_replaygain(void); 173/* One-time startup init that must come before settings reset/apply */
108void dsp_set_crossfeed(bool enable); 174void dsp_init(void);
109void dsp_set_crossfeed_direct_gain(int gain); 175
110void dsp_set_crossfeed_cross_params(long lf_gain, long hf_gain, 176#endif /* _DSP_H */
111 long cutoff);
112void dsp_set_eq(bool enable);
113void dsp_set_eq_precut(int precut);
114void dsp_set_eq_coefs(int band, int cutoff, int q, int gain);
115void dsp_dither_enable(bool enable);
116void dsp_timestretch_enable(bool enable);
117bool dsp_timestretch_available(void);
118void sound_set_pitch(int32_t r);
119int32_t sound_get_pitch(void);
120void dsp_set_timestretch(int32_t percent);
121int32_t dsp_get_timestretch(void);
122int dsp_callback(int msg, intptr_t param);
123struct compressor_settings;
124void dsp_set_compressor(const struct compressor_settings *settings);
125
126#endif
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