示例#1
0
/** @internal @This allocates an telxf pipe.
 *
 * @param mgr common management structure
 * @param uprobe structure used to raise events
 * @param signature signature of the pipe allocator
 * @param args optional arguments
 * @return pointer to upipe or NULL in case of allocation error
 */
static struct upipe *upipe_telxf_alloc(struct upipe_mgr *mgr,
                                       struct uprobe *uprobe,
                                       uint32_t signature, va_list args)
{
    struct upipe *upipe = upipe_telxf_alloc_void(mgr, uprobe, signature, args);
    if (unlikely(upipe == NULL))
        return NULL;

    struct upipe_telxf *upipe_telxf = upipe_telxf_from_upipe(upipe);
    upipe_telxf_init_urefcount(upipe);
    upipe_telxf_init_sync(upipe);
    upipe_telxf_init_output(upipe);
    upipe_telxf_init_flow_def(upipe);
    /* There is no known implementation of teletext in non-25 Hz systems. */
    upipe_telxf->fps.num = 25;
    upipe_telxf->fps.den = 1;
    upipe_telxf->octetrate = 0;
    upipe_telxf->next_uref = NULL;
    upipe_telxf->next_uref_size = 0;
    uref_init(&upipe_telxf->au_uref_s);
    uref_clock_set_date_sys(&upipe_telxf->au_uref_s, UINT64_MAX,
                            UREF_DATE_NONE);
    uref_clock_set_date_prog(&upipe_telxf->au_uref_s, UINT64_MAX,
                             UREF_DATE_NONE);
    uref_clock_set_date_orig(&upipe_telxf->au_uref_s, UINT64_MAX,
                             UREF_DATE_NONE);
    upipe_throw_ready(upipe);
    return upipe;
}
示例#2
0
/** @internal @This allocates an a52f pipe.
 *
 * @param mgr common management structure
 * @param uprobe structure used to raise events
 * @param signature signature of the pipe allocator
 * @param args optional arguments
 * @return pointer to upipe or NULL in case of allocation error
 */
static struct upipe *upipe_a52f_alloc(struct upipe_mgr *mgr,
                                       struct uprobe *uprobe,
                                       uint32_t signature, va_list args)
{
    struct upipe *upipe = upipe_a52f_alloc_void(mgr, uprobe, signature, args);
    if (unlikely(upipe == NULL))
        return NULL;

    struct upipe_a52f *upipe_a52f = upipe_a52f_from_upipe(upipe);
    upipe_a52f_init_urefcount(upipe);
    upipe_a52f_init_sync(upipe);
    upipe_a52f_init_uref_stream(upipe);
    upipe_a52f_init_output(upipe);
    upipe_a52f_init_flow_def(upipe);
    upipe_a52f->input_latency = 0;
    upipe_a52f->samplerate = 0;
    upipe_a52f->got_discontinuity = false;
    upipe_a52f->next_frame_size = -1;
    uref_init(&upipe_a52f->au_uref_s);
    upipe_a52f_flush_dates(upipe);
    upipe_a52f->drift_rate.num = upipe_a52f->drift_rate.den = 0;
    upipe_a52f->sync_header[0] = 0x0;
    upipe_throw_ready(upipe);
    return upipe;
}