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 * Copyright (C) 2022 BlueKitchen GmbH
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 *    from this software without specific prior written permission.
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// *****************************************************************************
//
// LC3 Interface
//
// *****************************************************************************

#define BTSTACK_FILE__ "btstack_lc3.c"

#include "btstack_lc3.h"
#include "btstack_debug.h"

uint16_t btstack_lc3_frame_duration_in_us(btstack_lc3_frame_duration_t frame_duration){
    switch (frame_duration){
        case BTSTACK_LC3_FRAME_DURATION_7500US:
            return 7500;
        case BTSTACK_LC3_FRAME_DURATION_10000US:
            return 10000;
        default:
            return 0;
    }
}

uint16_t btstack_lc3_samples_per_frame(uint32_t sample_rate, btstack_lc3_frame_duration_t frame_duration){
    // 44.1 kHz uses longer iso interval and same number of samples as 48 khz
    if (sample_rate == 44100){
        sample_rate = 48000;
    }
    // assume sample rate is x 1000 hz
    return (sample_rate / 1000) * (btstack_lc3_frame_duration_in_us(frame_duration) / 100) / 10;
}