/** @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; }
/** @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; }