78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/* equalizer.h - native equalizer test application header
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*
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* Based on native pcm test application platform/system/extras/sound/playwav.c
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*
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* Copyright (C) 2008 The Android Open Source Project
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* Copyright (c) 2010, The Linux Foundation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <sys/ioctl.h>
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#include <linux/ioctl.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdint.h>
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#define BASS_BOOST 0
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#define BASS_CUT 1
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#define BAND_BOOST 2
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#define BAND_CUT 3
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#define TREBLE_BOOST 4
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#define TREBLE_CUT 5
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#define NONE 6
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#define FILTER_GAIN_MAX 6
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#define FILTER_GAIN_MIN -6
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#define MAX_PRESETS 12
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#define MAX_BAND_COUNT 12
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#define PRESET_COUNT 5
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#define BAND_CLUB 5
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#define BAND_DANCE 7
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#define BAND_TECHNO 8
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#define BAND_LIVE 10
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#define BAND_REGGAE 5
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#define ADSP_AUDIO_MAX_EQ_BANDS 12
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struct adsp_audio_eq_band {
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/* The band index, 0 .. 11 */
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uint16_t band_idx;
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/* Filter band type */
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uint32_t filter_type;
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/* Filter band center frequency */
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uint32_t center_freq_hz;
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/* Filter band initial gain (dB) */
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/* Range is +12 dB to -12 dB with 1dB increments. */
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int32_t filter_gain;
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/* Filter band quality factor expressed as q-8 number, */
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/* i.e. fixed point number with q factor of 8, */
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/* e.g. 3000/(2^8) */
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int32_t q_factor;
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} __attribute__ ((packed));
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struct adsp_audio_eq_cfg {
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uint32_t enable;
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/* Number of consequtive bands specified */
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uint32_t num_bands;
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struct adsp_audio_eq_band eq_bands[ADSP_AUDIO_MAX_EQ_BANDS];
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} __attribute__ ((packed));
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int set_pcm_default_eq_values(int fd, uint32_t band_value, int32_t i);
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