[mythtv-users] V32 issued with mythexternrecorder and youtube-dl

Sun Mar 27 06:37:35 UTC 2022

Just upgraded from Ubuntu 18.04 -> 20.04 and MythTV V31 -> V32

I had a nicely working external recorder working with our local FTA
channels, and even documented the process for others to use under

 - https://github.com/steven-ellis/mypvr-nz-iptv

I'm using
 -
https://github.com/steven-ellis/mypvr-nz-iptv/blob/main/external/youtube-dl-nz.conf
 -
https://github.com/steven-ellis/mypvr-nz-iptv/blob/main/external/youtube-dl-nz-channels.conf

With the upgrade to V32 the youtube-dl command just exits almost
immediately and I can't debug any reasonable reason why.

If I run youtube-dl on the command line and pipe the output to mpv
playback works

mythfe at mythtv:/tmp$ /usr/bin/youtube-dl -q -o - --hls-use-mpegts
--external-downloader-args "-hide_banner -nostats -loglevel panic -re"
"https://i.mjh.nz/nz/tv.9.m3u8" | mpv - --vo=x11
[file] Reading from stdin...
WARNING: Could not send HEAD request to
https://d2ce82tpc3p734.cloudfront.net/v1/master/b1f4432f8f95be9e629d97baabfed15b8cacd1f8/TVNZ_1/master.m3u8:
HTTP Error 404: Not Found
 (+) Video --vid=1 (h264 1280x720 25.000fps)
 (+) Audio --aid=1 (aac 2ch 48000Hz)
[vo/x11] Warning: this legacy VO has bad performance. Consider fixing your
graphics drivers, or not forcing the x11 VO.
ALSA lib conf.c:5187:(snd_config_expand) Unknown parameters
CARD=Generic,DEV=0
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM
hdmi:CARD=Generic,DEV=0
[ao/alsa] Playback open error: Invalid argument
[ao] Failed to initialize audio driver 'alsa'
[ao] This audio driver/device was forced with the --audio-device option.
[ao] Try unsetting it.
Could not open/initialize audio device -> no sound.
Audio: no audio
VO: [x11] 1280x720 yuv420p
[vo/x11] Shared memory not supported
[vo/x11] Reverting to normal Xlib
[vo/x11] Shared memory not supported
[vo/x11] Reverting to normal Xlib
V: 00:00:00 / 00:00:00 (2%) Cache: 0.6s/162KB
[vo/x11] Shared memory not supported
[vo/x11] Reverting to normal Xlib
[vo/x11] Shared memory not supported
[vo/x11] Reverting to normal Xlib
V: 00:00:02 / 00:00:02 (82%) Cache: 0.3s/99KB

Exiting... (Quit)
ERROR: ffmpeg exited with code 1

If I try to debug the external recorder I can see it tries to start
youtube-dl but it appears to exit immediately

mythfe at mythtv:/tmp$ /usr/bin/mythexternrecorder -v all:debug   --conf  
/usr/local/share/myPVR/iptv/youtube-dl-nz.conf
2022-03-27 19:33:42.088353 C  mythexternrecorder version: fixes/32
[v32.0+fixes.202203250633.f69ce764b7~ubuntu20.04.1] www.mythtv.org
2022-03-27 19:33:42.088377 C  Qt version: compile: 5.12.8, runtime: 5.12.8
2022-03-27 19:33:42.088411 I  Ubuntu 20.04.4 LTS (x86_64)
2022-03-27 19:33:42.088414 N  Enabled verbose msgs: all
2022-03-27 19:33:42.088423 N  Setting Log Level to LOG_INFO
2022-03-27 19:33:42.098880 I  : Buffer: Ready for data.
2022-03-27 19:33:42.098904 I  Added logging to the console
2022-03-27 19:33:42.099003 I  : Command parser ready.
2022-03-27 19:33:42.099285 I   Channels in
'/usr/local/share/myPVR/iptv/youtube-dl-nz-channels.conf', Tuner: '',
Scanner: ''
1:APIVersion:2
1:OK:2
2022-03-27 19:33:47.157093 I  : Processing '1:APIVersion:2' --> '1:OK:2'
	2:Version?
	2:OK:1.0
2022-03-27 19:33:54.954597 I  : Processing '	2:Version?' --> '	2:OK:1.0'
4:HasTuner?
4:OK:Yes
2022-03-27 19:33:59.734855 I  : Processing 'HasTuner' --> '4:OK:Yes'
8:LoadChannels
8:OK:28
2022-03-27 19:34:05.520257 I  : Processing 'LoadChannels' --> '8:OK:28'
9:FirstChannel
9:OK:201,TVNZ 1,TVNZ 1,tv.9,tvone.png
2022-03-27 19:34:09.175082 I  youtube-dl "" "" "" "" : NextChannel
Name:'TVNZ 1',Callsign:'TVNZ 1',xmltvid:tv.9,Icon:tvone.png
2022-03-27 19:34:09.175104 I  : Processing 'FirstChannel' -->
'9:OK:201,TVNZ 1,TVNZ 1,tv.9,tvone.png'
10:TuneChannel:201
10:OK:Tuned to 201
2022-03-27 19:34:14.972243 I  youtube-dl "https://i.mjh.nz/nz/tv.9.m3u8"
"201" "TVNZ 1" "TVNZ 1" : Processing 'TuneChannel' --> '10:OK:Tuned to
201'
:13:TuneStatus
13:ERR:Unrecognized command 'TuneStatus     '
2022-03-27 19:34:21.159414 I  youtube-dl "https://i.mjh.nz/nz/tv.9.m3u8"
"201" "TVNZ 1" "TVNZ 1" : Processing ':13:TuneStatus     ' -->
'13:ERR:Unrecognized command 'TuneStatus     ''
14:TuneStatus?
14:OK:Tuned to
2022-03-27 19:34:31.949952 I  youtube-dl "https://i.mjh.nz/nz/tv.9.m3u8"
"201" "TVNZ 1" "TVNZ 1" : Tuned
2022-03-27 19:34:31.949985 I  youtube-dl "https://i.mjh.nz/nz/tv.9.m3u8"
"201" "TVNZ 1" "TVNZ 1" : Processing 'TuneChannel' --> '14:OK:Tuned to '
	15:StartStreaming
	15:ERR:No channel has been tuned
2022-03-27 19:34:38.895756 E  youtube-dl "https://i.mjh.nz/nz/tv.9.m3u8"
"201" "TVNZ 1" "TVNZ 1" : No channel has been tuned
2022-03-27 19:34:38.895779 I  youtube-dl "https://i.mjh.nz/nz/tv.9.m3u8"
"201" "TVNZ 1" "TVNZ 1" : Processing 'StartStreaming' --> '	15:ERR:No
channel has been tuned'
10:TuneChannel:201
10:OK:Tuned to 201
2022-03-27 19:34:44.378092 I  youtube-dl "https://i.mjh.nz/nz/tv.9.m3u8"
"201" "TVNZ 1" "TVNZ 1" : Processing 'TuneChannel' --> '10:OK:Tuned to
201'
15:StartStreaming
15:OK:Streaming Started
2022-03-27 19:34:48.598888 I  (pid 10459) youtube-dl
"https://i.mjh.nz/nz/tv.9.m3u8" "201" "TVNZ 1" "TVNZ 1" : Starting process
'/usr/bin/youtube-dl' args: '-q -o - --hls-use-mpegts
--external-downloader-args "-hide_banner -nostats -loglevel panic -re"
"https://i.mjh.nz/nz/tv.9.m3u8"'
2022-03-27 19:34:48.649591 I  (pid 10459) youtube-dl
"https://i.mjh.nz/nz/tv.9.m3u8" "201" "TVNZ 1" "TVNZ 1" : Started process
'/usr/bin/youtube-dl' PID 10459
2022-03-27 19:34:48.649639 I  (pid 10459) youtube-dl
"https://i.mjh.nz/nz/tv.9.m3u8" "201" "TVNZ 1" "TVNZ 1" : Processing
'StartStreaming' --> '15:OK:Streaming Started'

Checking for processes there is no PID 10459

Any tips on additional debugging steps.