Function filterFrame

libhb/avfilter.c:232–258

}

static hb_buffer_t* filterFrame( hb_filter_private_t * pv, hb_buffer_t ** buf_in )
{
    hb_buffer_list_t   list;
    hb_buffer_t      * buf = NULL, * next = NULL;

    hb_avfilter_add_buf(pv->graph, buf_in);
    buf = hb_avfilter_get_buf(pv->graph);

    while (buf != NULL)
    {
        hb_buffer_list_append(&pv->list, buf);
        buf = hb_avfilter_get_buf(pv->graph);
    }
    // Delay one frame so we can set the stop time of the output buffer
    hb_buffer_list_clear(&list);
    while (hb_buffer_list_count(&pv->list) > 1)
    {
        buf  = hb_buffer_list_rem_head(&pv->list);
        next = hb_buffer_list_head(&pv->list);

        buf->s.stop = next->s.start;
        buf->s.duration = buf->s.stop - buf->s.start;
        hb_buffer_list_append(&list, buf);
    }

    return hb_buffer_list_head(&list);
}

static int avfilter_work( hb_filter_object_t * filter,
                          hb_buffer_t ** buf_in, hb_buffer_t ** buf_out )