Tvheadend

from the log

Recording with subtitle:

dvr: /mnt/tv/Record/Real-Time/Long-Island-Medium---1^TV.St.6-Ep.7-'Il-coach-Theresa'---Theresa-e-Larry-visitano-il-ristorante-in-cui-mangiavano-ogni-giorno-durante-i-loro-appuntamenti.-In-seguito,-Theresa-aiuta-una-donna-che-sta-tentando-di-lottare-contro-i-suoi-sentimenti....2015-10- from adapter: "DiBcom 7000PC : DVB-T #0", network: "DVB-T", mux: "682MHz", provider: "Persidera", service: "Real Time"

Error when trying to remove recording:

"dvr: Unable to remove file '/mnt/tv/Record/Real-Time/Long-Island-Medium---1^TV.St.6-Ep.7-'Il-coach-Theresa'---Theresa-e-Larry-visitano-il-ristorante-in-cui-mangiavano-ogni-giorno-durante-i-loro-appuntamenti.-In-seguito,-Theresa-aiuta-una-donna-che-sta-tentando-di-lottare-contro-i-suoi-sentimenti....2015-10-' from disk -- Errore sconosciuto -36"

Recording without subtitle

dvr: /mnt/tv/Record/Real-Time/Long-Island-Medium---1^TV.2015-10-07.10-20.ts from adapter: "DiBcom 7000PC : DVB-T #0", network: "DVB-T", mux: "682MHz", provider: "Persidera", service: "Real Time"

I looked in src/dvr/dvr_rec.c and a check on the filename length is made actually.
The code is a bit complicated for me, but it looks like the filename includes the extension (/* Substitute extension /) at the time it is controlled for length and eventually trimmed (/ Check the maximum filename length */).
I think the resulting filename should keep the filename extension in any case, otherwise the file will be unusable.

So I think that the filename length control should be made on the filename without the extension, and the extension kept in any case.

Do you really need description of event in file name?

One of best solution is all that info to be contained in MKV "description"

If I use xmltv, the description (subtitle) in most cases contains the episode title/number and I find it very useful to have it in the file name.
For channels with EIT EPG info, sometimes the subtitle field contains also the description/plot of the episode and it may be very long.
I can disable the feature "subtitle in filename" for the recordings on these channels, but I think that if someone unknowingly enabled it, the system should generate anyway a valid filename, that is always keep the file extension.
If the file is saved without extension, it cannot be indexed by DLNA servers, so it cannot be directly played by DLNA clients.

If I rename it, the corresponding entry in tvheadend would go in the errors recording page.

It also looks like that if I remove from the completed recording page an entry corresponding to one of these files, the entry is removed but the file remains on the filesystem (NAS via NFS):

Oct 9 09:12:29 raspberrypi tvheadend²⁰³³⁸: dvr: delete entry 191d9cae0c7621062b123836d01636a5 "Il nostro piccolo grande amore" on "Real Time" start time 2015-10-09 08:29:30, scheduled for recording by "192.168.1.72", retention 60 days
Oct 9 09:12:29 raspberrypi tvheadend²⁰³³⁸: dvr: Unable to remove file '/mnt/tv/Record/Real-Time/Il-nostro-piccolo-grande-amore.2015-10-09.08-45.St.5-Ep.5-'La-prima-Festa-della-Mamma'---Per-Jen-e'-la-prima-Festa-della-Mamma-ma-purtroppo-deve-lavorare,-cosi'-Bill-aiuta-Will-a-realizzare-un-regalo-per-questa-mamma-davvero-speciale.-Inoltre,-la-coppia-c' from disk -- Errore sconosciuto -36

For the MKV part, I have to use the TS container/extension, because some of my DLNA clients do not recognize the MKV container.
I still have the description on the completed recordings page of tvheadend, so that is not an issue.

Now the files have the extension but I'm still not able to remove them from the web interface

Oct 9 14:41:53 raspberrypi tvheadend³²¹⁶²: dvr: /mnt/tv/Record/Real-Time/Il-boss-delle-torte.2015-10-09.14-10.St.6-Ep.4-'Torta-sushi'---Buddy-e-il-suo-team-stanno-realizzando-una-torta-squisita-per-raccogliere-fondi-dopo-un-uragano-a-Hoboken.-In-seguito,-Buddy-crea-un-dolce-a-forma-di-barca-per-un-ristorante-giappones-1.ts from adapter: "DiBcom 7000PC : DVB-T #0", network: "DVB-T", mux: "682MHz", provider: "Persidera", service: "Real Time"

I get an "unknown error -36" message:

Oct 9 14:42:27 raspberrypi tvheadend³²¹⁶²: dvr: Unable to remove file '/mnt/tv/Record/Real-Time/Il-boss-delle-torte.2015-10-09.14-10.St.6-Ep.4-'Torta-sushi'---Buddy-e-il-suo-team-stanno-realizzando-una-torta-squisita-per-raccogliere-fondi-dopo-un-uragano-a-Hoboken.-In-seguito,-Buddy-crea-un-dolce-a-forma-di-barca-per-un-ristorante-giappones-1.ts' from disk -- Errore sconosciuto -36

the entry is removed from the web interface but not from the filesystem.

Other issue symptoms:

I record I file, for example I get:
Oct 9 14:54:04 raspberrypi tvheadend³²¹⁶²: dvr: /mnt/tv/Record/Real-Time/Il-boss-delle-torte.2015-10-09.14-45.St.6-Ep.5-'Vedo-doppio'---Buddy-e-la-famiglia-affrontano-una-corsa-contro-il-tempo-per-aprire-la-nuova-pasticceria.-Inoltre,-due-gemelle-identiche-chiedono-una-torta-di-compleanno_-ma-avranno-anche-gli-stessi-gu.ts from adapter: "DiBcom 7000PC : DVB-T #0", network: "DVB-T", mux: "682MHz", provider: "Persidera", service: "Real Time"

If I see it via "Windows explorer" I see the complete file name
"Il-boss-delle-torte.2015-10-09.14-45.St.6-Ep.5-'Vedo-doppio'---Buddy-e-la-famiglia-affrontano-una-corsa-contro-il-tempo-per-aprire-la-nuova-pasticceria.-Inoltre,-due-gemelle-identiche-chiedono-una-torta-di-compleanno_-ma-avranno-anche-gli-stessi-gu.ts"

But if I "download" the file in windows (via the web interface in Chrome) I get a file named
"Il-boss-delle-torte.2015-10-09.14-45.St.6-Ep.5-'Vedo-doppio'---Buddy-e-la-famiglia-affrontano-una-corsa-contro-il-tempo-per-aprire-la-nuova-pasticceria.-Inoltre,-due-gemelle-identiche-chiedono-una-torta-di-comple"

and Windows thinks that the extension is "-Inoltre,-due-gemelle-identiche-chiedono-una-torta-di-comple"

I can remove the files from Windows Explorer or from the command line.

Only little note: There's no filename size limit for HTTP download - blame chrome.

I tested 4.1-579~g1ffad11 and now I do not get the error "-36" when I delete a recording from the web interface, but now I cannot remove ANY recording from the web interface.

It was fixed in v4.1-584-g6769c0e .

Ok, I tested version 4.1-579~g1ffad11 and I can again remove recordings with "normal length" filenames.
I still cannot download with correct name and cannot remove from the filesystem files with the "long" filename.
Should I open a different issue/ticket?

Could you retest with v4.1-592-g67b71ee ? Both issues should be resolved. Basically, one buffer was smaller than I expected (browser issue).

I confirm you that with version 4.1-593~g054fc2e files with long names (from subtitle in filename):
- are recorded with extension
- can be downloaded with correct name from web interface
- are correctly removed both from DVR finished recordings entries and filesystem
So far so good.
Thanks