Mythweb looses filename for preview images

[sven.witterstein@…]

Today's mythbuntu auto build - but recordings since 2010-02-25 are affected, trying to view all recordings in mythweb:

2010-03-01 03:04:45.234 ProgramInfo?: Updated pathname : -> '62992_20100301022000.mpg' 2010-03-01 03:04:45.244 Preview Error: Run() file not local: '/srv/myth/62992_20100301022000.mpg.64'

--> so Mythweb loses the Pixel ratio eg. "100x75x" and the ".png" part of the filename -> bad regex?

And - why can't it seem to remember the pathnames?

[superm1@…]

Please provide more information on the version you are referring to. Auto builds run on 0.22 and 0.23.

[sven.witterstein@…]

The current build is 0.23.0~trunk23645 (but an update is suggested - which I will run now to see what the situation is like afterwards)

[sven.witterstein@…]

This is what I still get after updating to svn-revision 23665 (20 revs ++)

2010-03-05 20:14:18.968 MainServer::ANN Monitor
2010-03-05 20:14:18.974 adding: fire as a client (events: 2)
2010-03-05 20:14:19.025 MainServer::ANN Monitor
2010-03-05 20:14:19.033 adding: fire as a client (events: 2)
2010-03-05 20:14:19.238 MainServer::ANN Monitor
2010-03-05 20:14:19.246 adding: fire as a client (events: 2)
2010-03-05 20:14:20.442 ProgramInfo: Updated pathname '':'' -> '62971_20100304225700.mpg'
2010-03-05 20:14:20.482 Preview Error: Run() file not local: '/srv/myth/62971_20100304225700.mpg.64'
2010-03-05 20:14:20.470 ProgramInfo: Updated pathname '':'' -> '62992_20100304201100.mpg'
2010-03-05 20:14:20.514 Preview Error: Run() file not local: '/srv/myth/62992_20100304201100.mpg.64'
2010-03-05 20:14:20.453 ProgramInfo: Updated pathname '':'' -> '62992_20100304010700.mpg'
2010-03-05 20:14:20.506 ProgramInfo: Updated pathname '':'' -> '62992_20100303201100.mpg'
2010-03-05 20:14:20.554 Preview Error: Run() file not local: '/srv/myth/62992_20100303201100.mpg.64'
2010-03-05 20:14:20.470 ProgramInfo: Updated pathname '':'' -> '63010_20100302232200.mpg'
2010-03-05 20:14:20.570 Preview Error: Run() file not local: '/srv/myth/63010_20100302232200.mpg.64'
2010-03-05 20:14:20.544 Preview Error: Run() file not local: '/srv/myth/62992_20100304010700.mpg.64'
2010-03-05 20:14:20.512 ProgramInfo: Updated pathname '':'' -> '63010_20100305021200.mpg'
2010-03-05 20:14:20.622 Preview Error: Run() file not local: '/srv/myth/63010_20100305021200.mpg.64'
2010-03-05 20:14:20.640 ProgramInfo: Updated pathname '':'' -> '62977_20100301015900.mpg'
2010-03-05 20:14:20.539 ProgramInfo: Updated pathname '':'' -> '62977_20100302001500.mpg'
2010-03-05 20:14:20.627 ProgramInfo: Updated pathname '':'' -> '62992_20100301022000.mpg'
2010-03-05 20:14:20.688 Preview Error: Run() file not local: '/srv/myth/62992_20100301022000.mpg.64'
2010-03-05 20:14:20.657 ProgramInfo: Updated pathname '':'' -> '62975_20100227131200.mpg'
2010-03-05 20:14:20.661 Preview Error: Run() file not local: '/srv/myth/62977_20100301015900.mpg.64'
2010-03-05 20:14:20.675 Preview Error: Run() file not local: '/srv/myth/62977_20100302001500.mpg.64'
2010-03-05 20:14:20.572 ProgramInfo: Updated pathname '':'' -> '62977_20100301221200.mpg'
2010-03-05 20:14:20.799 Preview Error: Run() file not local: '/srv/myth/62977_20100301221200.mpg.64'
2010-03-05 20:14:20.739 Preview Error: Run() file not local: '/srv/myth/62975_20100227131200.mpg.64'
2010-03-05 20:14:20.759 ProgramInfo: Updated pathname '':'' -> '62984_20100225231200.mpg'
2010-03-05 20:14:20.843 Preview Error: Run() file not local: '/srv/myth/62984_20100225231200.mpg.64'
2010-03-05 20:14:20.696 ProgramInfo: Updated pathname '':'' -> '63010_20100226020700.mpg'
2010-03-05 20:14:20.874 Preview Error: Run() file not local: '/srv/myth/63010_20100226020700.mpg.64'
2010-03-05 20:14:20.812 ProgramInfo: Updated pathname '':'' -> '62971_20100304225700.mpg'
2010-03-05 20:14:20.895 Preview Error: Run() file not local: '/srv/myth/62971_20100304225700.mpg.64'
2010-03-05 20:14:20.844 ProgramInfo: Updated pathname '':'' -> '62992_20100304201100.mpg'
2010-03-05 20:14:20.859 ProgramInfo: Updated pathname '':'' -> '62992_20100304010700.mpg'
2010-03-05 20:14:20.901 ProgramInfo: Updated pathname '':'' -> '62992_20100303201100.mpg'
2010-03-05 20:14:20.940 Preview Error: Run() file not local: '/srv/myth/62992_20100303201100.mpg.64'
2010-03-05 20:14:20.912 Preview Error: Run() file not local: '/srv/myth/62992_20100304201100.mpg.64'
2010-03-05 20:14:20.932 Preview Error: Run() file not local: '/srv/myth/62992_20100304010700.mpg.64'
2010-03-05 20:14:20.910 ProgramInfo: Updated pathname '':'' -> '63010_20100302232200.mpg'
2010-03-05 20:14:21.008 Preview Error: Run() file not local: '/srv/myth/63010_20100302232200.mpg.64'
2010-03-05 20:14:30.229 DVBSM(/dev/dvb/adapter0/frontend0), Warning: Can not count Uncorrected Blocks
			eno: Function not implemented (38)

[kormoc]

Broke after [23566]

[mdean]

perhaps related to [23599]

[mdean]

ref #8172

[russell5]

I have this same issue.

If i rename 1004_20100301213000.mpg.png to 1004_20100301213000.mpg.64 the recordings work in mythweb.

[Sven Witterstein <sven@…>]

Well - can somebody look with a debugger what happens to values such as

trunk/mythtv/programs/mythfrontend/playbackboxhelper.cpp   ¶
r23522 	r23599 	
345	 	    QString filename = pginfo.GetPlaybackURL() + ".png"; 
 	361	    QString filename = pginfo.pathname + ".png"; 

and

trunk/mythtv/programs/mythbackend/mythxml.cpp   ¶
r23113 	r23599 	 
1129	1129	        // Must generate Preview Image, Generate Image and save. 
1130	1130	        // ------------------------------------------------------------------ 
1131	 	 
1132	 	        PreviewGenerator *previewgen = new PreviewGenerator(pInfo, PreviewGenerator::kLocal); 
 	1131	        if (pInfo->pathname.left(1) != "/" && sFileName.left(1) == "/") 
 	1132	            pInfo->pathname = sFileName; 
 	1133	        if (pInfo->pathname.left(1) != "/") 
 	1134	        { 
 	1135	            delete pInfo; 
 	1136	            return; 
 	1137	        } 
 	1138	 
 	1139	        PreviewGenerator *previewgen = new PreviewGenerator( 
 	1140	            pInfo, PreviewGenerator::kLocal); 
1133	1141	        previewgen->SetPreviewTimeAsSeconds(nSecsIn); 
1134	1142	        previewgen->SetOutputFilename(sFileName + ".png"); 

I find it strange - but helpful in the context that .png is hardcoded here... Anyway, more into python these days, never got warm with cpp that much...

[andreaz@…]

Replying to russell5:

I have this same issue.

If i rename 1004_20100301213000.mpg.png to 1004_20100301213000.mpg.64 the recordings work in mythweb.

Im in the very same boat. Its a lil more strange here. Its enough when i do a touch 1004_20100301213000.mpg.64(regarding to the example above). When a file with the .64 ending exists, i get a preview image in mythweb.

Just my 2 cents.. :) Andreas

[andreaz@…]

Short add:

I can erase the file with the .64 ending after i watched the recording list in mythweb. The preview image is still present then.

Regards, Andreas

[mdean]

Rob Smith knows what's causing the issue and plans to work on it as soon as he gets time. Please keep the discussion on the mailing lists. Thanks.

[kormoc]

(In [23758]) After discussion in #mythtv, this should fix #8118.

[mdean]

(In [23764]) Fix MythXML preview generation for non-default time offsets.

Fixes MythXML preview generation when a non-default time offset is specified, which resulted in filename-handling issues after the recent changes to ProgramInfo? path handling. Patch was inspired by a patch from ThisOtherGuy? in IRC, with modifications by me to handle additional (pre-existing) issues with the filename handling I noticed while reviewing his patch. Thanks to ThisOtherGuy? for identifying the bug and for providing the initial patch.

This is the MythXML bug that caused the issue reported by #8118. That issue has since been fixed by modifying MythWeb to use a more-appropriate approach to request previews. Refs #8118.

[mdean]

(In [23930]) Don't calculate the default preview-pixmap offset in MythWeb. The preview generator will handle the default offset. This does to thumb_url() what [23758] did to get_preview_pixmap(). Refs #8118.

[mdean]

(In [23931]) Don't calculate default preview-pixmap offset in MythWeb. Backports [23930] from trunk. Refs #8118.