diff options
Diffstat (limited to 'OpenAL32/Include/bs2b.h')
| -rw-r--r-- | OpenAL32/Include/bs2b.h | 218 |
1 files changed, 109 insertions, 109 deletions
diff --git a/OpenAL32/Include/bs2b.h b/OpenAL32/Include/bs2b.h index baf50d0c..4ed576b8 100644 --- a/OpenAL32/Include/bs2b.h +++ b/OpenAL32/Include/bs2b.h @@ -1,109 +1,109 @@ -/*-
- * Copyright (c) 2005 Boris Mikhaylov
- *
- * 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.
- */
-
-#ifndef BS2B_H
-#define BS2B_H
-
-/* Number of crossfeed levels */
-#define BS2B_CLEVELS 3
-
-/* Normal crossfeed levels */
-#define BS2B_HIGH_CLEVEL 3
-#define BS2B_MIDDLE_CLEVEL 2
-#define BS2B_LOW_CLEVEL 1
-
-/* Easy crossfeed levels */
-#define BS2B_HIGH_ECLEVEL BS2B_HIGH_CLEVEL + BS2B_CLEVELS
-#define BS2B_MIDDLE_ECLEVEL BS2B_MIDDLE_CLEVEL + BS2B_CLEVELS
-#define BS2B_LOW_ECLEVEL BS2B_LOW_CLEVEL + BS2B_CLEVELS
-
-/* Default crossfeed levels */
-#define BS2B_DEFAULT_CLEVEL BS2B_HIGH_ECLEVEL
-/* Default sample rate (Hz) */
-#define BS2B_DEFAULT_SRATE 44100
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-struct bs2b {
- int level; /* Crossfeed level */
- int srate; /* Sample rate (Hz) */
-
- /* Lowpass IIR filter coefficients */
- double a0_lo;
- double b1_lo;
-
- /* Highboost IIR filter coefficients */
- double a0_hi;
- double a1_hi;
- double b1_hi;
-
- /* Global gain against overloading */
- double gain;
-
- /* Buffer of last filtered sample.
- * [0] - first channel, [1] - second channel
- */
- struct t_last_sample {
- double asis[2];
- double lo[2];
- double hi[2];
- } last_sample;
-};
-
-/* Clear buffers and set new coefficients with new crossfeed level value.
- * level - crossfeed level of *LEVEL values.
- */
-void bs2b_set_level(struct bs2b *bs2b, int level);
-
-/* Return current crossfeed level value */
-int bs2b_get_level(struct bs2b *bs2b);
-
-/* Clear buffers and set new coefficients with new sample rate value.
- * srate - sample rate by Hz.
- */
-void bs2b_set_srate(struct bs2b *bs2b, int srate);
-
-/* Return current sample rate value */
-int bs2b_get_srate(struct bs2b *bs2b);
-
-/* Clear buffer */
-void bs2b_clear(struct bs2b *bs2b);
-
-/* Return 1 if buffer is clear */
-int bs2b_is_clear(struct bs2b *bs2b);
-
-/* Crossfeeds one stereo sample that are pointed by sample.
- * [0] - first channel, [1] - second channel.
- * Returns crossfided samle by sample pointer.
- */
-
-/* sample poits to floats */
-void bs2b_cross_feed(struct bs2b *bs2b, float *sample);
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif /* __cplusplus */
-
-#endif /* BS2B_H */
+/*- + * Copyright (c) 2005 Boris Mikhaylov + * + * 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. + */ + +#ifndef BS2B_H +#define BS2B_H + +/* Number of crossfeed levels */ +#define BS2B_CLEVELS 3 + +/* Normal crossfeed levels */ +#define BS2B_HIGH_CLEVEL 3 +#define BS2B_MIDDLE_CLEVEL 2 +#define BS2B_LOW_CLEVEL 1 + +/* Easy crossfeed levels */ +#define BS2B_HIGH_ECLEVEL BS2B_HIGH_CLEVEL + BS2B_CLEVELS +#define BS2B_MIDDLE_ECLEVEL BS2B_MIDDLE_CLEVEL + BS2B_CLEVELS +#define BS2B_LOW_ECLEVEL BS2B_LOW_CLEVEL + BS2B_CLEVELS + +/* Default crossfeed levels */ +#define BS2B_DEFAULT_CLEVEL BS2B_HIGH_ECLEVEL +/* Default sample rate (Hz) */ +#define BS2B_DEFAULT_SRATE 44100 + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +struct bs2b { + int level; /* Crossfeed level */ + int srate; /* Sample rate (Hz) */ + + /* Lowpass IIR filter coefficients */ + double a0_lo; + double b1_lo; + + /* Highboost IIR filter coefficients */ + double a0_hi; + double a1_hi; + double b1_hi; + + /* Global gain against overloading */ + double gain; + + /* Buffer of last filtered sample. + * [0] - first channel, [1] - second channel + */ + struct t_last_sample { + double asis[2]; + double lo[2]; + double hi[2]; + } last_sample; +}; + +/* Clear buffers and set new coefficients with new crossfeed level value. + * level - crossfeed level of *LEVEL values. + */ +void bs2b_set_level(struct bs2b *bs2b, int level); + +/* Return current crossfeed level value */ +int bs2b_get_level(struct bs2b *bs2b); + +/* Clear buffers and set new coefficients with new sample rate value. + * srate - sample rate by Hz. + */ +void bs2b_set_srate(struct bs2b *bs2b, int srate); + +/* Return current sample rate value */ +int bs2b_get_srate(struct bs2b *bs2b); + +/* Clear buffer */ +void bs2b_clear(struct bs2b *bs2b); + +/* Return 1 if buffer is clear */ +int bs2b_is_clear(struct bs2b *bs2b); + +/* Crossfeeds one stereo sample that are pointed by sample. + * [0] - first channel, [1] - second channel. + * Returns crossfided samle by sample pointer. + */ + +/* sample poits to floats */ +void bs2b_cross_feed(struct bs2b *bs2b, float *sample); + +#ifdef __cplusplus +} /* extern "C" */ +#endif /* __cplusplus */ + +#endif /* BS2B_H */ |