diff options
Diffstat (limited to 'lib/rbcodec/dsp/surround.c')
-rw-r--r-- | lib/rbcodec/dsp/surround.c | 128 |
1 files changed, 86 insertions, 42 deletions
diff --git a/lib/rbcodec/dsp/surround.c b/lib/rbcodec/dsp/surround.c index b2995de49f..f3349b34e5 100644 --- a/lib/rbcodec/dsp/surround.c +++ b/lib/rbcodec/dsp/surround.c | |||
@@ -27,7 +27,6 @@ | |||
27 | #include "dsp_filter.h" | 27 | #include "dsp_filter.h" |
28 | #include "core_alloc.h" | 28 | #include "core_alloc.h" |
29 | 29 | ||
30 | static bool surround_enabled = false; | ||
31 | static int surround_balance = 0; | 30 | static int surround_balance = 0; |
32 | static bool surround_side_only = false; | 31 | static bool surround_side_only = false; |
33 | static int surround_mix = 100; | 32 | static int surround_mix = 100; |
@@ -64,26 +63,25 @@ static int b0_r=0,b0_w=0, | |||
64 | cl_r=0,cl_w=0; | 63 | cl_r=0,cl_w=0; |
65 | static int handle = -1; | 64 | static int handle = -1; |
66 | 65 | ||
67 | static void surround_buffer_alloc(void) | 66 | #define SURROUND_BUFSIZE ((B0_DLY + B2_DLY + BB_DLY + HH_DLY + CL_DLY)*sizeof (int32_t)) |
68 | { | ||
69 | if (handle > 0) | ||
70 | return; /* already-allocated */ | ||
71 | 67 | ||
72 | unsigned int total_len = B0_DLY + B2_DLY + BB_DLY + HH_DLY + CL_DLY; | 68 | static int surround_buffer_alloc(void) |
73 | handle = core_alloc("dsp_surround_buffer",sizeof(int32_t) * total_len); | 69 | { |
70 | handle = core_alloc("dsp_surround_buffer", SURROUND_BUFSIZE); | ||
71 | return handle; | ||
72 | } | ||
74 | 73 | ||
74 | static void surround_buffer_free(void) | ||
75 | { | ||
75 | if (handle < 0) | 76 | if (handle < 0) |
76 | { | ||
77 | surround_enabled = false; | ||
78 | return; | 77 | return; |
79 | } | 78 | |
80 | memset(core_get_data(handle),0,sizeof(int32_t) * total_len); | 79 | core_free(handle); |
80 | handle = -1; | ||
81 | } | 81 | } |
82 | 82 | ||
83 | static void surround_buffer_get_data(void) | 83 | static void surround_buffer_get_data(void) |
84 | { | 84 | { |
85 | if (handle < 0) | ||
86 | return; | ||
87 | b0 = core_get_data(handle); | 85 | b0 = core_get_data(handle); |
88 | b2 = b0 + B0_DLY; | 86 | b2 = b0 + B0_DLY; |
89 | bb = b2 + B2_DLY; | 87 | bb = b2 + B2_DLY; |
@@ -93,12 +91,7 @@ static void surround_buffer_get_data(void) | |||
93 | 91 | ||
94 | static void dsp_surround_flush(void) | 92 | static void dsp_surround_flush(void) |
95 | { | 93 | { |
96 | if (!surround_enabled) | 94 | memset(core_get_data(handle), 0, SURROUND_BUFSIZE); |
97 | return; | ||
98 | |||
99 | unsigned int total_len = B0_DLY + B2_DLY + BB_DLY + HH_DLY + CL_DLY; | ||
100 | if (handle > 0) | ||
101 | memset(core_get_data(handle),0,sizeof(int32_t) * total_len); | ||
102 | } | 95 | } |
103 | 96 | ||
104 | static void surround_update_filter(unsigned int fout) | 97 | static void surround_update_filter(unsigned int fout) |
@@ -116,8 +109,16 @@ void dsp_surround_set_balance(int var) | |||
116 | 109 | ||
117 | void dsp_surround_side_only(bool var) | 110 | void dsp_surround_side_only(bool var) |
118 | { | 111 | { |
119 | dsp_surround_flush(); | 112 | if (var == surround_side_only) |
113 | return; /* No setting change */ | ||
114 | |||
120 | surround_side_only = var; | 115 | surround_side_only = var; |
116 | |||
117 | struct dsp_config *dsp = dsp_get_config(CODEC_IDX_AUDIO); | ||
118 | if (!dsp_proc_enabled(dsp, DSP_PROC_SURROUND)) | ||
119 | return; | ||
120 | |||
121 | dsp_surround_flush(); | ||
121 | } | 122 | } |
122 | 123 | ||
123 | void dsp_surround_mix(int var) | 124 | void dsp_surround_mix(int var) |
@@ -127,12 +128,17 @@ void dsp_surround_mix(int var) | |||
127 | 128 | ||
128 | void dsp_surround_set_cutoff(int frq_l, int frq_h) | 129 | void dsp_surround_set_cutoff(int frq_l, int frq_h) |
129 | { | 130 | { |
131 | if (cutoff_l == frq_l && cutoff_h == frq_h) | ||
132 | return; /* No settings change */ | ||
133 | |||
130 | cutoff_l = frq_l;/*fx2*/ | 134 | cutoff_l = frq_l;/*fx2*/ |
131 | cutoff_h = frq_h;/*fx1*/ | 135 | cutoff_h = frq_h;/*fx1*/ |
132 | 136 | ||
133 | struct dsp_config *dsp = dsp_get_config(CODEC_IDX_AUDIO); | 137 | struct dsp_config *dsp = dsp_get_config(CODEC_IDX_AUDIO); |
134 | unsigned int fout = dsp_get_output_frequency(dsp); | 138 | if (!dsp_proc_enabled(dsp, DSP_PROC_SURROUND)) |
135 | surround_update_filter(fout); | 139 | return; |
140 | |||
141 | surround_update_filter(dsp_get_output_frequency(dsp)); | ||
136 | } | 142 | } |
137 | 143 | ||
138 | static void surround_set_stepsize(int surround_strength) | 144 | static void surround_set_stepsize(int surround_strength) |
@@ -163,23 +169,21 @@ void dsp_surround_enable(int var) | |||
163 | if (var == surround_strength) | 169 | if (var == surround_strength) |
164 | return; /* No setting change */ | 170 | return; /* No setting change */ |
165 | 171 | ||
166 | bool was_enabled = surround_strength > 0; | ||
167 | surround_strength = var; | 172 | surround_strength = var; |
168 | surround_set_stepsize(surround_strength); | ||
169 | 173 | ||
174 | struct dsp_config *dsp = dsp_get_config(CODEC_IDX_AUDIO); | ||
175 | bool was_enabled = dsp_proc_enabled(dsp, DSP_PROC_SURROUND); | ||
170 | bool now_enabled = var > 0; | 176 | bool now_enabled = var > 0; |
171 | 177 | ||
172 | if (was_enabled == now_enabled && !now_enabled) | 178 | if (was_enabled == now_enabled && !now_enabled) |
173 | return; /* No change in enabled status */ | 179 | return; /* No change in enabled status */ |
174 | 180 | ||
175 | if (now_enabled == false && handle > 0) | 181 | if (now_enabled) |
176 | { | 182 | surround_set_stepsize(var); |
177 | core_free(handle); | ||
178 | handle = -1; | ||
179 | } | ||
180 | surround_enabled = now_enabled; | ||
181 | 183 | ||
182 | struct dsp_config *dsp = dsp_get_config(CODEC_IDX_AUDIO); | 184 | /* If changing status, enable or disable it; if already enabled push |
185 | additional DSP_PROC_INIT messages with value = 1 to force-update the | ||
186 | filters */ | ||
183 | dsp_proc_enable(dsp, DSP_PROC_SURROUND, now_enabled); | 187 | dsp_proc_enable(dsp, DSP_PROC_SURROUND, now_enabled); |
184 | } | 188 | } |
185 | 189 | ||
@@ -284,42 +288,82 @@ static void surround_process(struct dsp_proc_entry *this, | |||
284 | (void)this; | 288 | (void)this; |
285 | } | 289 | } |
286 | 290 | ||
291 | /* Handle format changes and verify the format compatibility */ | ||
292 | static intptr_t surround_new_format(struct dsp_proc_entry *this, | ||
293 | struct dsp_config *dsp, | ||
294 | struct sample_format *format) | ||
295 | { | ||
296 | DSP_PRINT_FORMAT(DSP_PROC_SURROUND, *format); | ||
297 | |||
298 | /* Stereo mode only */ | ||
299 | bool was_active = dsp_proc_active(dsp, DSP_PROC_SURROUND); | ||
300 | bool now_active = format->num_channels > 1; | ||
301 | dsp_proc_activate(dsp, DSP_PROC_SURROUND, now_active); | ||
302 | |||
303 | if (now_active) | ||
304 | { | ||
305 | if (!was_active) | ||
306 | dsp_surround_flush(); /* Going online */ | ||
307 | |||
308 | return PROC_NEW_FORMAT_OK; | ||
309 | } | ||
310 | |||
311 | /* Can't do this. Sleep until next change. */ | ||
312 | DEBUGF(" DSP_PROC_SURROUND- deactivated\n"); | ||
313 | return PROC_NEW_FORMAT_DEACTIVATED; | ||
314 | |||
315 | (void)this; | ||
316 | } | ||
317 | |||
287 | /* DSP message hook */ | 318 | /* DSP message hook */ |
288 | static intptr_t surround_configure(struct dsp_proc_entry *this, | 319 | static intptr_t surround_configure(struct dsp_proc_entry *this, |
289 | struct dsp_config *dsp, | 320 | struct dsp_config *dsp, |
290 | unsigned int setting, | 321 | unsigned int setting, |
291 | intptr_t value) | 322 | intptr_t value) |
292 | { | 323 | { |
293 | unsigned int fout = dsp_get_output_frequency(dsp); | 324 | intptr_t retval = 0; |
325 | |||
294 | switch (setting) | 326 | switch (setting) |
295 | { | 327 | { |
296 | case DSP_PROC_INIT: | 328 | case DSP_PROC_INIT: |
297 | if (value == 0) | 329 | if (value == 0) |
298 | { | 330 | { |
331 | retval = surround_buffer_alloc(); | ||
332 | if (retval < 0) | ||
333 | break; | ||
334 | |||
299 | this->process = surround_process; | 335 | this->process = surround_process; |
300 | surround_buffer_alloc(); | ||
301 | dsp_surround_flush(); | ||
302 | dsp_proc_activate(dsp, DSP_PROC_SURROUND, true); | ||
303 | } | 336 | } |
304 | else | 337 | /* else additional forced messages */ |
305 | surround_update_filter(fout); | 338 | |
339 | surround_update_filter(dsp_get_output_frequency(dsp)); | ||
306 | break; | 340 | break; |
341 | |||
342 | case DSP_PROC_CLOSE: | ||
343 | /* Being disabled (called also if init fails) */ | ||
344 | surround_buffer_free(); | ||
345 | break; | ||
346 | |||
307 | case DSP_FLUSH: | 347 | case DSP_FLUSH: |
348 | /* Discontinuity; clear filters */ | ||
308 | dsp_surround_flush(); | 349 | dsp_surround_flush(); |
309 | break; | 350 | break; |
310 | case DSP_SET_OUT_FREQUENCY: | 351 | |
352 | case DSP_SET_OUT_FREQUENCY: | ||
353 | /* New output frequency */ | ||
311 | surround_update_filter(value); | 354 | surround_update_filter(value); |
312 | break; | 355 | break; |
313 | case DSP_PROC_CLOSE: | 356 | |
357 | case DSP_PROC_NEW_FORMAT: | ||
358 | /* Source buffer format is changing (also sent when first enabled) */ | ||
359 | retval = surround_new_format(this, dsp, (struct sample_format *)value); | ||
314 | break; | 360 | break; |
315 | } | 361 | } |
316 | 362 | ||
317 | return 1; | 363 | return retval; |
318 | (void)dsp; | ||
319 | } | 364 | } |
320 | 365 | ||
321 | /* Database entry */ | 366 | /* Database entry */ |
322 | DSP_PROC_DB_ENTRY( | 367 | DSP_PROC_DB_ENTRY( |
323 | SURROUND, | 368 | SURROUND, |
324 | surround_configure); | 369 | surround_configure); |
325 | |||