Function ff_lpc_init

libavcodec/lpc.c:340–363

}

av_cold int ff_lpc_init(LPCContext *s, int blocksize, int max_order,
                        enum FFLPCType lpc_type)
{
    s->blocksize = blocksize;
    s->max_order = max_order;
    s->lpc_type  = lpc_type;

    s->windowed_buffer = av_mallocz((blocksize + 2 + FFALIGN(max_order, 4)) *
                                    sizeof(*s->windowed_samples));
    if (!s->windowed_buffer)
        return AVERROR(ENOMEM);
    s->windowed_samples = s->windowed_buffer + FFALIGN(max_order, 4);

    s->lpc_apply_welch_window = lpc_apply_welch_window_c;
    s->lpc_compute_autocorr   = lpc_compute_autocorr_c;

#if ARCH_RISCV
    ff_lpc_init_riscv(s);
#elif ARCH_X86
    ff_lpc_init_x86(s);
#endif

    return 0;
}

av_cold void ff_lpc_end(LPCContext *s)
{