Search found 168 matches

by blm-ubunet
Thu Apr 15, 2021 7:58 am
Forum: Hardware
Topic: time for a new backend / daily driver
Replies: 17
Views: 1557
Cambodia

Re: time for a new backend / daily driver

I believe you can use VDPAU with AMD. It one point it was better than VAAPI for AMD. But the extra VDPAU filters have been removed from layer MythTV decode-playback.. I haven't upgraded from Dec 2019 because HQ scaler etc is non-functional & can't work out how to patch them back in (hard coded if ne...
by blm-ubunet
Tue Apr 13, 2021 8:41 am
Forum: Troubleshooting
Topic: seeking/editing in mythfrontend
Replies: 9
Views: 619
Cambodia

Re: seeking/editing in mythfrontend

I figured out later that you must be generating the keyframe offsets with external tool & stuffing back into DB. That's a clever trick.. That might only work for video & audio packets without byte offsets. Almost all broadcast mpeg-ts has an offset in AV packets (with same PTS) & never uses IDR I fr...
by blm-ubunet
Sun Apr 11, 2021 7:03 pm
Forum: Troubleshooting
Topic: seeking/editing in mythfrontend
Replies: 9
Views: 619
Cambodia

Re: seeking/editing in mythfrontend

I recall the decision was to NOT generate seektables for mkv containers. The fact it did work was an oversight. [Myth]FFprobe does not update any seektable, do you refer to mythcommflag --rebuild .. MKV design was meant to be be so clever it did not need a seektable shame about the timebase deficien...
by blm-ubunet
Tue Mar 30, 2021 6:23 pm
Forum: Hardware
Topic: time for a new backend / daily driver
Replies: 17
Views: 1557
Cambodia

Re: time for a new backend / daily driver

Same here.. I use SSD for system & database..
Some of the "green" drives needed a setting changed to stop them parking & sleeping after 2 seconds idle..
by blm-ubunet
Tue Mar 30, 2021 6:20 pm
Forum: Troubleshooting
Topic: HD Playback problem with YLE-channels only
Replies: 25
Views: 3024
Cambodia

Re: HD Playback problem with YLE-channels only

I understood the problem to be related to the detection probesize / initial sampling size.
Or the MythTV demuxer does something else that ffmpeg does not.
by blm-ubunet
Mon Mar 29, 2021 9:42 am
Forum: Hardware
Topic: time for a new backend / daily driver
Replies: 17
Views: 1557
Cambodia

Re: time for a new backend / daily driver

Many years ago the AMD video engine was an easy match for Nvidia in windows at least.. The AMD CPU iGPU should be fantastic & probably is. What I don't like is the terrible documentation & near impossible task to figure the capability of any AMD GPU / video decode engine. I what to know about the de...
by blm-ubunet
Sat Mar 27, 2021 8:34 pm
Forum: Troubleshooting
Topic: HD Playback problem with YLE-channels only
Replies: 25
Views: 3024
Cambodia

Re: HD Playback problem with YLE-channels only

The best player is probably mpv. But I don't see any subtitles (dvb_teletext) using mpv. Depending on how your MythTV packages were built .. you may have mythffmpeg / mythffplay binaries to try.. Or mythavtest/mythfrontend -v libav,playback:debug mythffplay plays it okay but displays no subtitles. I...
by blm-ubunet
Sat Mar 27, 2021 9:31 am
Forum: Troubleshooting
Topic: HD Playback problem with YLE-channels only
Replies: 25
Views: 3024
Cambodia

Re: HD Playback problem with YLE-channels only

Almost looks like a aspect ratio calculation error or that the stream probing does not get the correct video info. Can you cut 20MB from the beginning of a recording using dd & upload somewhere? (Be very careful with usage of dd == disk destroyer) Not to fix this problem but.. Have you tried other v...
by blm-ubunet
Thu Mar 25, 2021 3:22 am
Forum: Hardware
Topic: time for a new backend / daily driver
Replies: 17
Views: 1557
Cambodia

Re: time for a new backend / daily driver

Most people recommend SSD (or NVME) for system & database tables. Old SATA rotating rust disks are fine for recordings. I use a 8TB shingled HDD to archive keepers. I started with 9400GT 12-13 yrs ago but long (never thought that card's vdpau decode PQ was that good) since replaced many times, now u...
by blm-ubunet
Thu Mar 25, 2021 2:47 am
Forum: Troubleshooting
Topic: HD Playback problem with YLE-channels only
Replies: 25
Views: 3024
Cambodia

Re: HD Playback problem with YLE-channels only

What strikes me as odd is the video size is 640x480 and using ffmpeg decoding.. InitVideoCodec AFD: InitVideoCodec ID:H264 Type:Video Size: 0x0 ... & resetting decoder is odd.. Do your broadcasters use dvb-t2 for SD feeds ? Are you using mythfrontend in windowed mode (cmd line opts) or with a specif...
by blm-ubunet
Sun Feb 07, 2021 7:52 pm
Forum: Troubleshooting
Topic: MythTV 31 Frontend Crashes on Connection to Backend
Replies: 8
Views: 455
Cambodia

Re: MythTV 31 Frontend Crashes on Connection to Backend

Your crashing does appear like in X server or openGL video drivers, this X stuff is not very robust. You might be able to configure opengl out but I think it is fundamental to any practical usage. You can pass cmd line options to mythfrontend when launching with gdb; I would try pass it:- $ gdb --ar...
by blm-ubunet
Fri Feb 05, 2021 11:31 pm
Forum: Troubleshooting
Topic: MythTV 31 Frontend Crashes on Connection to Backend
Replies: 8
Views: 455
Cambodia

Re: MythTV 31 Frontend Crashes on Connection to Backend

Large parts of the world have always used XMLTV with MythTV using web sourced listings or extracted from OTA MHEG with RedButton etc. At least 12yrs here.. What's new for SD is using XMLTV. Markvannoy Your problems could very well be old libraries/binaries. You should have a manual clean out of the ...
by blm-ubunet
Sat Jan 23, 2021 8:03 pm
Forum: Troubleshooting
Topic: V32 Mytharchive installed but no entry in menus(SOLVED)
Replies: 30
Views: 1329
Cambodia

Re: V32 Mytharchive installed but no entry in menus

AIUI & as it works here:

The "file" output path is set per archive run/job.
It is set by user on the first screen/page of mytharchive when you run the extension.

If you create an ISO (not a "file output") etc then it uses the setup defined "temp" folder.
by blm-ubunet
Sat Jan 09, 2021 9:30 pm
Forum: Troubleshooting
Topic: MythTV freezes with finnish YLE programs
Replies: 22
Views: 956
Cambodia

Re: MythTV freezes with finnish YLE programs

IMO that ppa is following master too closely & with no regard to whether the build is working, only considering build success. But I tested your video files in latest master from yesterday & they decoded & seemed to play okay (PQ etc another matter). There has been a massive re-factoring in playback...
by blm-ubunet
Sat Jan 09, 2021 7:36 pm
Forum: Troubleshooting
Topic: MythTV freezes with finnish YLE programs
Replies: 22
Views: 956
Cambodia

Re: MythTV freezes with finnish YLE programs

Timo, Are you building from source ? If you are you need to be very careful to clean, distclean regularly & also build mythplugins after building installing main mythtv libraries. I've noticed that (only recently?) mythtv is linking in old /usr/local/lib libraries. That leads to seg fault crashes & ...