mp3d_scale_pcm()

MP3D_LEAF mp3d_sample_t mp3d_scale_pcm

(

int64_t

sample

)

Definition at line 605 of file minimp3_synth_fixed.h.

{
    const int64_t t = sample + MP3D_PCM_HALF;
    int32_t s = (int32_t)(t >= 0 ? (t >> MINIMP3_FRAC_BITS)
                                 : -((-t) >> MINIMP3_FRAC_BITS));
    s -= (s < 0);
    if (s > 32767) return (int16_t) 32767;
    if (s < -32768) return (int16_t)-32768;
    return (int16_t)s;
}

References FL_NO_EXCEPT, MINIMP3_FRAC_BITS, MP3D_PCM_HALF, and t.

Referenced by mp3d_synth(), and mp3d_synth_pair().

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