LinHES Forums :: View topic - HOWTO: Setup MythExport (for iPod) on R6

indolent wrote:

I also have the audio sync issue that Martian has. Anyone have any ideas?

I'm curious - Are you also using an HDHomerun as your source?

I never was able to sort this one out. I planned to try other codecs to see if they share the audio sync problem or if it's only H.264 but got burnt out on the issue and moved to other projects.

Do let me know if you have any success!

Martian

So you aren't having sudio sync issues with the transcodes???

Using my brain's very temperamental "way back machine" I believe I remember needing to add :/usr/share/mythtv/mythexport to open_basedir = in /etc/php/php.ini [be sure to restart lighttpd - sv restart /etc/sv/lighttpd ]

I also have a symlink from /data/srv/httpd/htdocs/mythexport to /usr/share/mythtv/mythexport

Well I guess that confirms that the issue isn't with the source files then

Perhaps it's an issue with the version of ffmpeg-svn that ships with LinHES? When I get some free time I can try to compile the latest version from the Arch AUR on my test box and see how far into dependacy h3|| I must go...

Martian

Author:	paulsid [ Mon Feb 01, 2010 9:06 am ]
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Well I think that's narrowed it down to runsv but I'm not familiar enough with it to know how to troubleshoot it. runit/runsv does not seem to be in wide use... I had difficulty finding info on it when learning how to make mythexport into a service. The docs on the home page were about all I could find. Since the daemon itself looks like it's working you could run it instead from a startup script, at the expense of losing the runsv monitoring. I've seen forum threads discussing how to put other commands in startup scripts so that'd be the best place to look I think. (My first instinct would be to put it in /etc/rc.local but I'm not sure that's used under R6.)

Author:	ceenvee703 [ Mon Feb 01, 2010 11:42 am ]
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Transcoding did seem to work: there's an MP4 file of about the right size in /myth/ipodfeed, haven't had a chance to see how it looks yet. (EDIT: looks fine) Next problem is the URL for the RSS feed doesn't seem to be working for me. I enter http://192.168.1.30/mythexport/mythexportRSS.cgi while connected to my home network, and I get a "500 Internal Server Error." I did add those three lines to the lighttpd.conf file, tried them both around line 170 where you suggested as well as the end of the file, neither with any success. Restarted lighttpd after each edit. Thanks for the help.

Author:	Martian [ Mon Feb 01, 2010 1:26 pm ]
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Check permissions on mythexportRSS.cgi Martian

Author:	ceenvee703 [ Mon Feb 01, 2010 2:32 pm ]
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It's root:root but world-readable. I tried changing it to http:users with no apparent success. I'll keep playing with it.

Author:	paulsid [ Mon Feb 01, 2010 2:47 pm ]
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Could also be a missing perl extension... try running the cgi in perl from the command line and see what it says. If it works there then it's either permissions, something isn't quite right with the lighttpd setup.

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HOWTO: Setup MythExport (for iPod) on R6 http://forums.linhes.org/viewtopic.php?f=25&t=20657	Page 2 of 5

Author:	ceenvee703 [ Mon Feb 01, 2010 4:50 pm ]
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I ran the CGI at the command line and got XML out of it (don't know if it's right or not), but Firefox displays a blank page when I use the URL, and iTunes gives me a "server error" error. Oy.

Author:	indolent [ Mon Feb 01, 2010 7:58 pm ]
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Martian wrote: indolent wrote: I also have the audio sync issue that Martian has. Anyone have any ideas? I'm curious - Are you also using an HDHomerun as your source? I never was able to sort this one out. I planned to try other codecs to see if they share the audio sync problem or if it's only H.264 but got burnt out on the issue and moved to other projects. Do let me know if you have any success! Martian No, not an HDHomerun. I have two digital tuners hooked up to an ota antenna. One is a dvico fusion 5 gold and the other is one I got off of craigslist that I can't remember the name at the moment. I got the same audio syncing problem with recordings from both of them. I haven't tried any other codecs since, as far as I know, that's the only one that works on the Droid, which is what I'm trying to use this for.

Author:	Martian [ Tue Feb 02, 2010 8:53 am ]
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Well I guess that confirms that the issue isn't with the source files then Perhaps it's an issue with the version of ffmpeg-svn that ships with LinHES? When I get some free time I can try to compile the latest version from the Arch AUR on my test box and see how far into dependacy h3\|\| I must go... Martian

Author:	ceenvee703 [ Tue Feb 02, 2010 10:17 am ]
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ffmpeg seems to be encoding fine, it's the CGI page I can't get working. It's similar to problems in this thread, which suggests some kind of perl binding issue, but heck if I know what to do about it, particularly with lighttpd http://ubuntuforums.org/showpost.php?p=6872073

Author:	paulsid [ Tue Feb 02, 2010 10:36 am ]
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Can you post your lighttpd.conf? I'll compare it to mine and see if something looks unusual. BTW I've never been able to get the setup pages working. It's a perl error complaining about not being able to find what it needs in the include path. Luckily the RSS script doesn't have the same dependencies. Would be nice to get the other pages working but I haven't had time to look into it further.

Author:	Martian [ Tue Feb 02, 2010 10:48 am ]
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I guess I'm a problem behind. So you aren't having sudio sync issues with the transcodes??? I never did get most of the cgi to work although I did get mythexportRSS.cgi to work. I think LinHES is missing some perl packages to get the rest working properly. Using my brain's very temperamental "way back machine" I believe I remember needing to add :/usr/share/mythtv/mythexport to open_basedir = in /etc/php/php.ini [be sure to restart lighttpd - sv restart /etc/sv/lighttpd ] I also have a symlink from /data/srv/httpd/htdocs/mythexport to /usr/share/mythtv/mythexport Hope this helps. Martian

Author:	paulsid [ Tue Feb 02, 2010 11:21 am ]
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Martian wrote: So you aren't having sudio sync issues with the transcodes??? Me? No, but I'm exporting to regular iPod (MP4) and not iPhone (H.264). Guess I should have made that clear earlier... I wasn't ignoring you, I just don't have the same problem! However, I do have a possibly-related problem not involving MythExport: my recordings are made in H.264 (from a Hauppauge 1212 HD-PVR) and I am having audio sync and frame skip problems using mythtranscode to convert to MPEG. It's a known issue... haven't researched it much, but it might also be related to ffmpeg's evolving h264 support, so if you do get the svn working (a tall order to be sure) I'd be interested to know if it improves things. If you use my config for regular iPod and play the resulting MP4 file on a PC do you still get audio issues? EDIT: Oops, regular iPod video is MP4... AAC is for audio. Fixed above.

Author:	paulsid [ Tue Feb 02, 2010 11:34 am ]
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Martian wrote: Using my brain's very temperamental "way back machine" I believe I remember needing to add :/usr/share/mythtv/mythexport to open_basedir = in /etc/php/php.ini [be sure to restart lighttpd - sv restart /etc/sv/lighttpd ] I also have a symlink from /data/srv/httpd/htdocs/mythexport to /usr/share/mythtv/mythexport Interesting, I don't have my mythexport directory in PHP's open_basedir, and I haven't made any modifications to that file. Mine is as follows: Code: open_basedir = /data/srv/httpd/htdocs/:/home/:/tmp/:/usr/share/pear/:/data/srv/tmp: /usr/share/mythtv/mythweather/scripts/:/data/srv/httpd/htdocs/mythweb/data/video: /myth/ipodfeed:/data/srv/httpd/htdocs/archive:/etc Might be picking it up from the aforementioned symlink in the first path, but it's odd that you had to add it in manually. BTW that symlink should have been added by the mythexport package. Anyhow looks like we have some variance there so yes those would be good things to doublecheck. My R6 install was an upgrade from R5.5; perhaps there are some differences with a clean install and/or beta upgrades.

Author:	Martian [ Tue Feb 02, 2010 12:05 pm ]
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My install was an upgrade from R5.5 as well. I thought the mythexport symlink was created already but couldn't remember (it's been a little while). I checked my php.ini and I had edited it but I can't remember if that actually fixed a problem or not. I just tried setting the open_basedir line back to default and reloading lighty and everything still worked so I guess at this point I'm just polluting the forum. open_basedir has saved me in the past but apparently it's not my day... Martian

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Author:	indolent [ Tue Feb 02, 2010 12:53 pm ]
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Martian wrote: Well I guess that confirms that the issue isn't with the source files then Perhaps it's an issue with the version of ffmpeg-svn that ships with LinHES? When I get some free time I can try to compile the latest version from the Arch AUR on my test box and see how far into dependacy h3\|\| I must go... Martian I put a couple recordings on a separate windows pc and encoded it using the winff gui. I would assume that came with the newest ffmpeg version? It still had the same audio sync issue.