Function av_fifo_alloc2

libavutil/fifo.c:47–75

};

AVFifo *av_fifo_alloc2(size_t nb_elems, size_t elem_size,
                       unsigned int flags)
{
    AVFifo *f;
    void *buffer = NULL;

    if (!elem_size)
        return NULL;

    if (nb_elems) {
        buffer = av_realloc_array(NULL, nb_elems, elem_size);
        if (!buffer)
            return NULL;
    }
    f = av_mallocz(sizeof(*f));
    if (!f) {
        av_free(buffer);
        return NULL;
    }
    f->buffer    = buffer;
    f->nb_elems  = nb_elems;
    f->elem_size = elem_size;
    f->is_empty  = 1;

    f->flags           = flags;
    f->auto_grow_limit = FFMAX(AUTO_GROW_DEFAULT_BYTES / elem_size, 1);

    return f;
}

void av_fifo_auto_grow_limit(AVFifo *f, size_t max_elems)
{