[mythtv-commits] Ticket #10731: mythtranscode crashes in 0.25

Tue May 22 11:05:19 UTC 2012

#10731: mythtranscode crashes in 0.25
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 Reporter:  pinball.rules@…         |          Owner:
     Type:  Bug Report - Crash      |         Status:  new
 Priority:  minor                   |      Milestone:  unknown
Component:  MythTV - Mythtranscode  |        Version:  Unspecified
 Severity:  medium                  |     Resolution:
 Keywords:                          |  Ticket locked:  0
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Comment (by pinball.rules@…):

 I've been trying some additional tests and looking at the mythtranscode
 log.  I've noticed a few errors that my be relevant.  In my test I'm
 trying to invoke mythtv to transcode a previously recorded show from the
 'Watch Recordings' menu.  In previous tests this had worked for me, but I
 couldn't get it to work in this set of tests.  Refer to the annotated log
 snippet below.

 {{{
 May 21 08:06:59 paragon mythtranscode[4147]: E CoreContext
 recordingprofile.cpp:164 (addSelection) SampleRate: Attempted to add a
 rate 32000 Hz, which is not in the list of allowed rates.
 }}}
 This error was occurring until I changed the sampling rate of the
 transcoders to 48000.  It's curious to me that 32000 is the default yet
 this error is in the logs.  I'm not sure if it's significant or not.

 {{{
 May 21 08:24:08 paragon mythtranscode[5387]: C thread_unknown
 mythcommandlineparser.cpp:2534 (ConfigureLogging) mythtranscode version:
 fixes/0.25 [v0.25] www.mythtv.org
 May 21 08:24:08 paragon mythtranscode[5387]: N thread_unknown
 mythcommandlineparser.cpp:2536 (ConfigureLogging) Enabled verbose msgs:
 general
 May 21 08:24:08 paragon mythtranscode[5387]: N thread_unknown
 logging.cpp:1176 (logStart) Setting Log Level to LOG_INFO
 May 21 08:24:08 paragon mythtranscode[5387]: I thread_unknown
 logging.cpp:229 (FileLogger) Added logging to the console
 May 21 08:24:08 paragon mythtranscode[5387]: I thread_unknown
 logging.cpp:369 (SyslogLogger) Added syslogging to facility local7
 May 21 08:24:08 paragon mythtranscode[5387]: I thread_unknown
 logging.cpp:425 (DatabaseLogger) Added database logging to table logging
 May 21 08:24:08 paragon mythtranscode[5387]: N thread_unknown
 logging.cpp:1215 (logStart) Setting up SIGHUP handler
 May 21 08:24:08 paragon mythtranscode[5387]: N thread_unknown
 mythdirs.cpp:51 (InitializeMythDirs) Using runtime prefix = /usr
 May 21 08:24:08 paragon mythtranscode[5387]: N thread_unknown
 mythdirs.cpp:64 (InitializeMythDirs) Using configuration directory =
 /home/mythtv/.mythtv
 May 21 08:24:08 paragon mythtranscode[5387]: I CoreContext
 mythcorecontext.cpp:227 (Init) Assumed character encoding: en_US.UTF-8
 May 21 08:24:08 paragon mythtranscode[5387]: E CoreContext
 configuration.cpp:64 (Load) Error parsing: /home/mythtv/.mythtv/config.xml
 at line: 1  column: 1
 May 21 08:24:08 paragon mythtranscode[5387]: E CoreContext
 configuration.cpp:66 (Load) Error Msg: unexpected end of file
 }}}
 This first significant error seems to be caused by parsing an empty
 config.xml file.  I looked and the mythtv user's .mythtv/config.xml file
 is a link that points to /etc/mythtv/config.xml, which is empty.  Note
 that I login and use a different user to control mythtv.  My normal user
 has a .mythtv/config.xml file that is not a link, but rather an actual
 file and contains a stanza with configuration (but that is not a link).  I
 also noticed that the /etc/mythtv/config.xml file gets updated after
 running mythtv-setup and some other times too (I have noticed it's
 timestamp is always sometime in the previous 24 hours).  My guess here is
 that at some point this file got truncated by some action within mythtv.
 I have repaired the /etc/mythtv/config.xml file by copying back the
 version from my normal user and the error no longer appears in my
 mythtranscode log.  The file has not been truncated over the last day
 (though its timestamp did change over night and again when I ran mythtv-
 setup again this morning).
 {{{
 May 21 08:24:08 paragon mythtranscode[5387]: N CoreContext
 mythcontext.cpp:477 (LoadDatabaseSettings) Empty LocalHostName.
 May 21 08:24:08 paragon mythtranscode[5387]: I CoreContext
 mythcontext.cpp:481 (LoadDatabaseSettings) Using localhost value of
 paragon
 May 21 08:24:08 paragon mythtranscode[5387]: E CoreContext
 configuration.cpp:64 (Load) Error parsing: /home/mythtv/.mythtv/config.xml
 at line: 1  column: 1
 May 21 08:24:08 paragon mythtranscode[5387]: E CoreContext
 configuration.cpp:66 (Load) Error Msg: unexpected end of file
 May 21 08:24:08 paragon mythtranscode[5387]: N CoreContext
 mythcorecontext.cpp:1270 (InitLocale) Setting QT default locale to EN_US
 May 21 08:24:08 paragon mythtranscode[5387]: I CoreContext
 mythcorecontext.cpp:1303 (SaveLocaleDefaults) Current locale EN_US
 May 21 08:24:08 paragon mythtranscode[5387]: N CoreContext
 mythlocale.cpp:121 (LoadDefaultsFromXML) Reading locale defaults from
 /usr/share/mythtv//locales/en_us.xml
 May 21 08:24:08 paragon mythtranscode[5387]: I CoreContext
 mythtranslation.cpp:66 (load) Loading en_us translation for module
 mythfrontend
 May 21 08:24:08 paragon mythtranscode[5387]: N CoreContext main.cpp:540
 (main) Transcoding from
 /var/lib/mythtv/sg_a/recordings/2622_20120521053000.mpg to
 /var/lib/mythtv/sg_a/recordings/2622_20120521053000.mpg.tmp
 May 21 08:24:08 paragon mythtranscode[5387]: I CoreContext
 avformatdecoder.cpp:2100 (ScanStreams) AFD: Opened codec 0xe57170,
 id(MPEG2VIDEO) type(Video)
 May 21 08:24:08 paragon mythtranscode[5387]: I CoreContext
 avformatdecoder.cpp:1958 (ScanStreams) AFD: codec AC3 has 6 channels
 May 21 08:24:08 paragon mythtranscode[5387]: I CoreContext
 avformatdecoder.cpp:2100 (ScanStreams) AFD: Opened codec 0xe5bb20, id(AC3)
 type(Audio)
 May 21 08:24:08 paragon mythtranscode[5387]: N CoreContext
 audioplayer.cpp:167 (ReinitAudio) AudioPlayer: Enabling Audio
 May 21 08:24:08 paragon mythtranscode[5387]: N CoreContext
 transcode.cpp:1030 (TranscodeFile) Found video height of 1088.  This is
 unusual and more than likely the video is actually 1080 so mythtranscode
 will treat it as such.
 May 21 08:24:08 paragon mythtranscode[5387]: E CoreContext
 NuppelVideoRecorder.cpp:610 (SetupAVCodecVideo) NVR(): Unable to open
 FFMPEG/mpeg4 codec
 }}}
 This seems to be the end of the line for each failed transcode attempt.
 I'm not sure why it can't open the FFMPEG/mpeg4 codec.  As I said above,
 it has been able to transcode a few shows successfully, but it fails more
 than it succeeds as shown in this log.

-- 
Ticket URL: <http://code.mythtv.org/trac/ticket/10731#comment:2>
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