Tvheadend

Sometimes my DVB-T signal has errors (noise) and tvheadend spins up cpu to 100% (one core).
The only solution in such case is to restart tvheadend service - then tvheadend uses about 8% cpu as usual (till next errors in signal).

Just before tvheadend logs following messages:

Nov 12 11:10:06 htpc tvheadend¹⁵⁰⁵⁴: TS: Adapter1 Mux2/TP EmiTel: 818,000 kHz/TV4: H264 #302: Continuity counter error, 253 duplicate log lines suppressed
Nov 12 11:10:06 htpc tvheadend[15054]: TS: Adapter1 Mux2/TP EmiTel: 818,000 kHz/TV4: H264 #302: Corrupted PES header
Nov 12 11:10:10 htpc tvheadend¹⁵⁰⁵⁴: parser: transport stream MPEG2AUDIO, DTS discontinuity. DTS = 62834103, last = 62224983
Nov 12 11:10:18 htpc tvheadend¹⁵⁰⁵⁴: parser: transport stream MPEG2AUDIO, DTS discontinuity. DTS = 63538263, last = 63335223
Nov 12 11:10:22 htpc tvheadend¹⁵⁰⁵⁴: parser: transport stream MPEG2AUDIO, DTS discontinuity. DTS = 63914103, last = 63685143
Nov 12 11:10:24 htpc tvheadend¹⁵⁰⁵⁴: parser: transport stream MPEG2AUDIO, DTS discontinuity. DTS = 64110663, last = 64013463
Nov 12 11:10:27 htpc tvheadend¹⁵⁰⁵⁴: parser: transport stream MPEG2AUDIO, DTS discontinuity. DTS = 64419543, last = 64231623
Nov 12 11:10:30 htpc tvheadend¹⁵⁰⁵⁴: parser: transport stream MPEG2AUDIO, DTS discontinuity. DTS = 64685223, last = 64438983
Nov 12 11:10:31 htpc tvheadend¹⁵⁰⁵⁴: parser: transport stream H264, DTS discontinuity. DTS = 52298088, last = 64879200
Nov 12 11:10:31 htpc tvheadend¹⁵⁰⁵⁴: parser: transport stream H264, DTS discontinuity. DTS = 64882800, last = 52298088
Nov 12 11:10:34 htpc tvheadend¹⁵⁰⁵⁴: TS: Adapter1 Mux2/TP EmiTel: 818,000 kHz/TV4: H264 @ #302: Corrupted PES header

Sometimes tvheadend works correct few days, sometimes it must be restarted several times per hour.