[mythtv-users] mytharchive

[Tom Hughes]

I tried mytharchive for the first time the other day and unfortunately
it failed which trying to multiplex the menu stream for the chapter menu
of the second of two recordings I had selected.

The last few lines of mythburn.log are:

  ++ WARN: [mplex] Stream e0: data will arrive too late sent(SCR)=7314 required(DTS)=7200
  ++ WARN: [mplex] Video e0: buf=  99212 frame=000001 sector=00000049
  ++ WARN: [mplex] Audio c0: buf=      0 frame=000000 sector=00000000
  **ERROR: [mplex] MUX STATUS: Frame data under-runs detected!
  ************************************************************
  ERROR: Failed while running mplex - mplex -f 8 -v 0 -o '/video/tmp/work/temp.mpg' '/video/tmp/work/temp.m2v' '/usr/share/mythtv/mytharchive/music/menumusic.mp2'
  ************************************************************

Running the mplex command by hand without the -v0 gives more information:

   INFO: [mplex] mplex version 1.9.0 (2.2.7 $Date: 2006/02/01 22:23:01 $)
   INFO: [mplex] File /video/tmp/work/temp.m2v looks like an MPEG Video stream.
   INFO: [mplex] File /usr/share/mythtv/mytharchive/music/menumusic.mp2 looks like an MPEG Audio stream.
   INFO: [mplex] Video stream 0: profile 8 selected - ignoring non-standard options!
   INFO: [mplex] Found 1 audio streams and 1 video streams
   INFO: [mplex] Selecting dvdauthor DVD output profile
   INFO: [mplex] Multiplexing video program stream!
   INFO: [mplex] Scanning for header info: Video stream e0 (/video/tmp/work/temp.m2v)
   INFO: [mplex] VIDEO STREAM: e0
   INFO: [mplex] Frame width     : 720
   INFO: [mplex] Frame height    : 576
   INFO: [mplex] Aspect ratio    : 16:9 display
   INFO: [mplex] Picture rate    : 25.000 frames/sec
   INFO: [mplex] Bit rate        : 5000000 bits/sec
   INFO: [mplex] Vbv buffer size : 229376 bytes
   INFO: [mplex] CSPF            : 0
   INFO: [mplex] Scanning for header info: Audio stream c0 (/usr/share/mythtv/mytharchive/music/menumusic.mp2)
   INFO: [mplex] MPEG AUDIO STREAM: c0
   INFO: [mplex] Audio version  : 1.0
   INFO: [mplex] Layer          :        2
   INFO: [mplex] CRC checksums  :      yes
   INFO: [mplex] Bit rate       :    28672 bytes/sec (224 kbit/sec)
   INFO: [mplex] Frequency      :     48000 Hz
   INFO: [mplex] Mode           :        0 stereo
   INFO: [mplex] Mode extension :        0
   INFO: [mplex] Copyright bit  :        0 no copyright
   INFO: [mplex] Original/Copy  :        0 copy
   INFO: [mplex] Emphasis       :        0 none
   INFO: [mplex] SYSTEMS/PROGRAM stream:
   INFO: [mplex] rough-guess multiplexed stream data rate    : 5337800
   INFO: [mplex] target data-rate specified               : 10080000
   INFO: [mplex] Setting specified specified data rate: 10080000
   INFO: [mplex] Run-in delay = 7200 Video delay = 7200 Audio delay = 10800
   INFO: [mplex] New sequence commences...
   INFO: [mplex] Video e0: buf=      0 frame=000000 sector=00000000
   INFO: [mplex] Audio c0: buf=      0 frame=000000 sector=00000000
++ WARN: [mplex] Stream e0: data will arrive too late sent(SCR)=7314 required(DTS)=7200
++ WARN: [mplex] Video e0: buf=  99212 frame=000001 sector=00000049
++ WARN: [mplex] Audio c0: buf=      0 frame=000000 sector=00000000
   INFO: [mplex] Scanned to end AU 374
   INFO: [mplex] STREAM e0 completed
   INFO: [mplex] STREAM c0 completed
   INFO: [mplex] Multiplex completion at SCR=2704530.
   INFO: [mplex] Video 2cbe4d00: completed
   INFO: [mplex] Audio 2cbe4d00: completed
   INFO: [mplex] VIDEO_STATISTICS: e0
   INFO: [mplex] Video Stream length:     3748705 bytes
   INFO: [mplex] Sequence headers:       25
   INFO: [mplex] Sequence ends   :        1
   INFO: [mplex] No. Pictures    :      375
   INFO: [mplex] No. Groups      :       25
   INFO: [mplex] No. I Frames    :       25 avg. size 97753 bytes
   INFO: [mplex] No. P Frames    :      350 avg. size  3728 bytes
   INFO: [mplex] No. B Frames    :        0 avg. size     0 bytes
   INFO: [mplex] Average bit-rate :  1999200 bits/sec
   INFO: [mplex] Peak bit-rate    :  2017600  bits/sec
   INFO: [mplex] BUFFERING min 27 Buf max 232138
   INFO: [mplex] AUDIO_STATISTICS: c0
   INFO: [mplex] Audio stream length 841344 bytes.
   INFO: [mplex] Syncwords      :     1252
   INFO: [mplex] Frames         :     1252 padded
   INFO: [mplex] Frames         :        0 unpadded
   INFO: [mplex] BUFFERING min 15 Buf max 683
**ERROR: [mplex] MUX STATUS: Frame data under-runs detected!

Any suggestions?

Tom

-- 
Tom Hughes (tom at compton.nu)
http://www.compton.nu/