Can no longer tune ATSC3 when off LAN

@tmm1
Here is an example when it takes too long to tune maybe developers can look to extend the time ....

2023/03/02 12:25:25.104829 [HLS] Couldn't generate stream playlist for ch102.1-d1080ACCC-f21439a61f8c: Timeout waiting for session to start after 8s
2023/03/02 12:25:25.104829 [HLS] Stopping transcoder session ch102.1-d1080ACCC-f21439a61f8c (out: 0s, finished: false)
2023/03/02 12:25:25.110455 [TNR] Closed connection to 1080ACCC/1 for ch102.1 KATU
2023/03/02 12:25:25.131344 [SNR] Statistics for ch102.1 KATU: ss=100% snq=100% seq=100% bps=0 pps=155,102-180
2023/03/02 12:25:25.131344 [SNR] Buffer statistics for ch102.1 KATU: buf=0% drop=0%
2023/03/02 12:25:26.102044 [TNR] Opened connection to 10701381/0 for ch2.1 KATU
2023/03/02 12:25:26.105813 [HLS] Starting live stream for channel 2.1 from xxx.xxx.xxx.xxx
2023/03/02 12:25:26.939219 [HLS] Probed live stream in 832.8077ms: mpeg2video 1280x720 progressive 3839026bps
2023/03/02 12:25:28.810729 [ENC] Starting encoder for ch2.1 in Y:\ChannelsDVR\Streaming\ch2.1-d10701381-f21439a61f8c-3339527185\encoder-1-575981910 at 1 (1.486778) (encoder=h264_mf, resolution=720, deinterlacer=blend, bitrate=3616, segment_size=0.01)
2023/03/02 12:25:29.204226 [HLS] ffmpeg: ch2.1-d10701381-f21439a61f8c-1-h264-aac-copy--3616-192-720-0-40---false-false-0.01-0:  [h264_mf @ 00000000024c9680] stream format change
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Yep yours is failing as well. I have a feeling most people are failing as well but don’t notice

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Right it seems seamless when it switches to ATSC 1.0.

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Remote failure is a result of the 8sec time out. On home network it’s a channels app issue 19sec to tune vs 5sec in hdhr app. The dvr has no problem tuning quickly.

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@troyhough do you have the Model: HDHR5-4K ?

Wonder if any of the newer hdhr4k have this issue. Mine is a kickstarter unit

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Yes that is my unit. 1 is a Kickstarter. The other I added later, both same model number.

Anyone with a HDFX-4K care to test all their atsc3 channels?

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v2023.03.02.2040
IMPROVED: Increased transcoder timeout from 8s to 12s

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Mine is working fine. Two stations are still encrypted. Using Apple TV 4ks, Channels 2023.03.01.1719 beta.

image

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@tmm1
I think this release made it worst faster timeout .... v2023.03.02.2040

2023/03/02 13:06:00.295635 [SNR] Statistics for ch112.1 KPTV: ss=100% snq=100% seq=100% bps=0 pps=326,99-426
2023/03/02 13:06:00.295635 [SNR] Buffer statistics for ch112.1 KPTV: buf=0% drop=0%
2023/03/02 13:06:00.479463 [HLS] Couldn't generate stream playlist for ch112.1-d1080ACCC-f21439a61f8c: Stream stopped
2023/03/02 13:06:00.479463 [HLS] Stopping transcoder session ch112.1-d1080ACCC-f21439a61f8c (out: 0s, finished: true)
2023/03/02 13:06:01.322989 [TNR] Opened connection to 10701381/1 for ch12.1 FOX 12
2023/03/02 13:06:01.327424 [HLS] Starting live stream for channel 12.1 from xxxxxx
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This new one is weird. Now it doesn’t say it times out but it does switch’s to atsc1

2023/03/02 15:05:21.465233 [HLS] Starting live stream for channel 104.1 from xxxx xxxxx xx
2023/03/02 15:05:23.785786 [HLS] Probed live stream in 2.320428573s: hevc 1280x720 progressive 21724644bps
2023/03/02 15:05:29.406005 [TNR] Opened connection to XXXXXXXX/2 for ch4.1 WDAF-DT
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Updated to latest beta. Tried 3 times off the LAN and failed 3 times. It ended up tuning the ATSC1 channel instead.

@troyhough Please make 60s recordings from your ATSC3 stations and email to [email protected]

have you tried not transcoding?

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no Transcoding 5G cellular It switched from ATSC 3.0 to ATSC1 and remuxed.

2023/03/02 13:41:00.949136 [HLS] Starting live stream for channel 102.1 from 174.204.198.194
2023/03/02 13:41:03.127643 [HLS] Probed live stream in 2.1779761s: hevc 1280x720 progressive 14017240bps
2023/03/02 13:41:06.697399 [HLS] Stopping transcoder session ch102.1-d1080ACCC-f21439a61f8c (out: 0s, finished: false)
2023/03/02 13:41:06.702880 [TNR] Closed connection to 1080ACCC/0 for ch102.1 KATU
2023/03/02 13:41:06.723346 [SNR] Statistics for ch102.1 KATU: ss=100% snq=100% seq=100% bps=0 pps=158,111-187
2023/03/02 13:41:06.723346 [SNR] Buffer statistics for ch102.1 KATU: buf=0% drop=0%
2023/03/02 13:41:07.533277 [TNR] Opened connection to 10701381/0 for ch2.1 KATU
2023/03/02 13:41:07.538108 [HLS] Starting live stream for channel 2.1 from xxxxxxxxxxx
2023/03/02 13:41:08.371980 [HLS] Probed live stream in 833.3428ms: mpeg2video 1280x720 progressive 2546976bps

I do not Transcode.

Are you watching off the LAN? Are you 100% sure it's not falling back to the ATSC1 equivalent? How long does it take to tune in the ATSC3 channels on average when not on LAN?

Just recorded 60 sec of my 4 diff ATSC3 channels. Zipped and emailed you the link to download from Google Drive.

Ran a test on the LAN using the HDHR and Channels DVR apps on my onn 4K Streaming box to compare tuning times. Tried 10 times using each app.

On average the HDHR app tunes in the ATSC3 stations in about 4 seconds.

Here are the times it took using the Channels DVR app (in seconds)

23s
13s
21s - Failed defaulted to the ATSC1 channel
22s
14s
13s
20s
12s
21s

There seems to be a big issue here with Channels DVR being able to tune in the channels where as the HDHR app tunes them consistently quickly. If this gets figured out, it may also fix the problem with being able to tune them in when watching remotely (not on the LAN).

FWIW there is no audio delay when I view. When the picture comes up, the audio also plays.

Submit diagnostics from the app after slow tune. Are you using Direct or Stream mode?