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PostPosted: Sun Nov 30, 2008 10:55 am 
Offline
Joined: Sat Feb 04, 2006 12:19 pm
Posts: 17
Location: Texas
After upgrading to Knoppmyth 5.5, I've attempted to use MythArchive twice. This is a component of the system I used many times under R5F27 and prior, with no problems of note.

Both times I've used MythArchive since, the process has worked perfectly, according to the log files. The video is nice and pretty, but the audio is just static. If I turn up the volume to painful levels, I can make out some of the original audio, but it's not in any way usable.

The input files have been MPG, 720x480, from Hauppauge 150 cards. It was set to use the cutlist, and it did run through all the steps I'm accustomed to seeing for that. My settings are set to always use MythTranscode, and to use FIFO files.

The most recent file, which is the only one I've got at hand, was 2hrs 9min long after removing the commercials. The DVD claims to be 4:18 in length, although the video doesn't play past 2:09.

Anyone have a clue on what I can do to re-enable this very useful functionality? Dragging files to my Windows box to clip commercials and convert to DVD is incredibly tedious.

Progress.log:
Code:
2008-11-30 09:42:39 mythburn.py (0.1.20080629-1-fixes) starting up...
2008-11-30 09:42:39 Found 1 CPUs
2008-11-30 09:42:39 Obtaining MythTV settings from MySQL database for hostname mythtv
2008-11-30 09:42:39 temppath: /myth/tmp/mytharchive/work
2008-11-30 09:42:39 logpath:  /myth/tmp/mytharchive/logs
2008-11-30 09:42:39 Setting process priority to 17
2008-11-30 09:42:39 Processing Mythburn job number 1.
2008-11-30 09:42:39 Options - mediatype = 0, doburn = 1, createiso = 0, erasedvdrw = 0
2008-11-30 09:42:39           savefilename = ''
2008-11-30 09:42:39 Looking for: /usr/share/mythtv/mytharchive/themes/Simple - Autoplay/theme.xml
2008-11-30 09:42:39 Loading font 0, /usr/share/mythtv/FreeSans.ttf size 19
2008-11-30 09:42:39 Loading font 1, /usr/share/mythtv/FreeSans.ttf size 15
2008-11-30 09:42:39 Loading font 2, /usr/share/mythtv/FreeSans.ttf size 13
2008-11-30 09:42:39 wantIntro: 0, wantMainMenu: 0, wantChapterMenu:0, wantDetailsPage: 0
2008-11-30 09:42:39 Final DVD Video format will be ntsc
2008-11-30 09:42:39 There are 1 files to process
2008-11-30 09:42:39 Pre-processing recording 1: '/myth/tv/1059_20081129195900.mpg'
2008-11-30 09:42:40           Stephen King's Desperation
2008-11-30 09:42:40 Video resolution is 720 by 480
2008-11-30 09:42:40 *************************************************************
2008-11-30 09:42:40 Processing recording 1: '/myth/tv/1059_20081129195900.mpg'
2008-11-30 09:42:40 *************************************************************
2008-11-30 09:42:40 File type is 'mpeg'
2008-11-30 09:42:40 Video codec is 'mpeg2video'
2008-11-30 09:42:40 File has a cut list - running mythtranscode to remove unwanted segments
2008-11-30 09:55:40 Preferred audio languages eng and eng
2008-11-30 09:55:40 Video id: 0x1e0, Audio1: [1] 0x1c0 (MP2, N/A), Audio2: [-1] - 0x-1 (N/A, N/A)
2008-11-30 09:55:40 Splitting MPEG stream into audio and video parts
2008-11-30 09:55:40 Running: mythreplex --demux --fix_sync -o /myth/tmp/mytharchive/work/1/stream -v 224 -a 192 "/myth/tmp/mytharchive/work/1/newfile.mpg"
2008-11-30 10:04:03 Audio track 1 is in mp2 format - re-encoding to ac3
2008-11-30 10:04:03 Encoding audio to ac3
2008-11-30 10:12:43 *************************************************************
2008-11-30 10:12:43 Finished processing '/myth/tv/1059_20081129195900.mpg'
2008-11-30 10:12:43 *************************************************************
2008-11-30 10:12:43 Creating DVD XML file for dvd author (No Menus)
2008-11-30 10:12:44 Adding item 1
2008-11-30 10:12:44 aspect ratio is: 1.33333
2008-11-30 10:12:44 Fixed length chapters: 00:00:00,00:05:00,00:10:00,00:15:00,00:20:00,00:25:00,00:30:00,00:35:00,00:40:00,00:45:00,00:50:00,00:55:00,01:00:00,01:05:00,01:10:00,01:15:00,01:20:00,01:25:00,01:30:00,01:35:00,01:40:00,01:45:00,01:50:00,01:55:00,02:00:00,02:05:00
2008-11-30 10:12:44 Total size of video files, before multiplexing, is 4626 Mbytes, audio is 355 MBytes, menus are 0 MBytes.
2008-11-30 10:12:44 Need to shrink MPEG2 video files to fit onto recordable DVD, video is 869.08 MBytes too big.
2008-11-30 10:12:44 Need to scale by 1.21058395929
2008-11-30 10:12:44 tcrequant /myth/tmp/mytharchive/work/1/stream.mv2 /myth/tmp/mytharchive/work/1/video.small.m2v 1.21058395929
2008-11-30 10:18:18 Total DVD size AFTER TCREQUANT is 4367.05 MBytes
2008-11-30 10:18:18 Multiplexing MPEG stream to /myth/tmp/mytharchive/work/1/final.mpg
2008-11-30 10:18:18 Adding sync offset of -15ms
2008-11-30 10:18:18 Available streams - video and one audio stream
2008-11-30 10:18:18 Multiplex started PID=21524
2008-11-30 10:18:18 Starting dvdauthor
2008-11-30 10:27:00 Finished  dvdauthor
2008-11-30 10:27:09 Burning ISO image to /dev/dvd
2008-11-30 10:27:09 growisofs -dvd-compat  -Z /dev/dvd -dvd-video -V "Stephen King's Desperation" /myth/tmp/mytharchive/work/dvd
2008-11-30 10:27:09 Running growisofs to burn DVD
2008-11-30 10:33:58 Finished burning ISO image
2008-11-30 10:33:58 Removing all archive items from the archiveitems DB table
2008-11-30 10:33:58 Finished processing jobs!!!


Mythburn.log (lightly edited to remove fluff):
Code:
Using simple_fix_rtl
mythburn.py (0.1.20080629-1-fixes) starting up...
script path:/usr/share/mythtv/mytharchive/scripts
myth share path:/usr/share/mythtv
passed job file: /myth/tmp/mytharchive/config/mydata.xml
passed progress log file: /myth/tmp/mytharchive/logs/progress.log
mythburn.py (0.1.20080629-1-fixes) starting up...
Found 1 CPUs
Obtaining MythTV settings from MySQL database for hostname mythtv
temppath: /myth/tmp/mytharchive/work
logpath:  /myth/tmp/mytharchive/logs
Setting process priority to 17
Processing Mythburn job number 1.
Options - mediatype = 0, doburn = 1, createiso = 0, erasedvdrw = 0
          savefilename = ''
Looking for: /usr/share/mythtv/mytharchive/themes/Simple - Autoplay/theme.xml
Loading font 0, /usr/share/mythtv/FreeSans.ttf size 19
Loading font 1, /usr/share/mythtv/FreeSans.ttf size 15
Loading font 2, /usr/share/mythtv/FreeSans.ttf size 13
wantIntro: 0, wantMainMenu: 0, wantChapterMenu:0, wantDetailsPage: 0
Final DVD Video format will be ntsc
There are 1 files to process
Pre-processing recording 1: '/myth/tv/1059_20081129195900.mpg'
2008-11-30 09:42:39.952 Opening /myth/tv/1059_20081129195900.mpg
Input #0, mpeg, from '/myth/tv/1059_20081129195900.mpg':
  Duration: 03:02:13.2, start: 0.233733, bitrate: 5566 kb/s
    Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x480 [PAR 8:9 DAR 4:3], 6500 kb/s, 29.97 tb(r)
    Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, stereo, 256 kb/s
2008-11-30 09:42:39.992 duration = 10933
2008-11-30 09:42:39.992 Extracting details from: 1059_20081129195900.mpg
2008-11-30 09:42:39.994 chanid: 1059 starttime:2008-11-29T19:59:00
2008-11-30 09:42:40.000 File is a Myth recording.
2008-11-30 09:42:40.002 cutframes = 94966
2008-11-30 09:42:40.002 cutduration = 3168
streaminfo.xml :-
<?xml version="1.0" ?><!DOCTYPE FILEINFO><file cutduration="7765" duration="10933" filename="/myth/tv/1059_20081129195900.mpg" type="mpeg">   
        <streams count="2">       
                <video aspectratio="1.33333" bitrate="6500000" codec="mpeg2video" ffmpegindex="0" fps="29.97" height="480" id="480" start_time="0.36039" streamindex="0" width="720"/>       
                <audio bitrate="256000" channels="2" codec="mp2" ffmpegindex="1" id="448" language="N/A" samplerate="48000" start_time="0.21036" streamindex="1"/>       
        </streams>   
</file>
          Stephen King's Desperation
Video resolution is 720 by 480
*************************************************************
Processing recording 1: '/myth/tv/1059_20081129195900.mpg'
*************************************************************
File type is 'mpeg'
Video codec is 'mpeg2video'
File has a cut list - running mythtranscode to remove unwanted segments
2008-11-30 09:42:40.353 Using runtime prefix = /usr
2008-11-30 09:42:40.354 Empty LocalHostName.
2008-11-30 09:42:40.376 New DB connection, total: 1
2008-11-30 09:42:40.383 Closing DB connection named 'DBManager0'
2008-11-30 09:42:40.384 Enabled verbose msgs: important
2008-11-30 09:42:40.387 New DB connection, total: 2
Mux rate: 6.87 Mbit/s
2008-11-30 09:53:14.927 Opening /myth/tmp/mytharchive/work/1/newfile.mpg
Input #0, mpeg, from '/myth/tmp/mytharchive/work/1/newfile.mpg':
  Duration: 02:09:25.0, start: 0.315967, bitrate: 5332 kb/s
    Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x480 [PAR 8:9 DAR 4:3], 6500 kb/s, 29.97 tb(r)
    Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, stereo, 256 kb/s
2008-11-30 09:53:15.005 Calculating frame count
2008-11-30 09:55:40.080 frames = 232720
2008-11-30 09:55:40.109 duration = 7765
2008-11-30 09:55:40.125 Extracting details from: newfile.mpg
2008-11-30 09:55:40.206 Cannot find details for newfile.mpg
2008-11-30 09:55:40.206 File is not a Myth recording.
2008-11-30 09:55:40.207 cutframes = 0
2008-11-30 09:55:40.207 cutduration = 0
streaminfo.xml :-
<?xml version="1.0" ?><!DOCTYPE FILEINFO><file cutduration="7765" duration="7765" filename="/myth/tmp/mytharchive/work/1/newfile.mpg" type="mpeg">   
        <streams count="2">       
                <video aspectratio="1.33333" bitrate="6500000" codec="mpeg2video" ffmpegindex="0" fps="29.97" height="480" id="480" start_time="0.28437" streamindex="0" width="720"/>       
                <audio bitrate="256000" channels="2" codec="mp2" ffmpegindex="1" id="448" language="N/A" samplerate="48000" start_time="0.29967" streamindex="1"/>       
        </streams>   
</file>
Preferred audio languages eng and eng
Video id: 0x1e0, Audio1: [1] 0x1c0 (MP2, N/A), Audio2: [-1] - 0x-1 (N/A, N/A)
Splitting MPEG stream into audio and video parts
Running: mythreplex --demux --fix_sync -o /myth/tmp/mytharchive/work/1/stream -v 224 -a 192 "/myth/tmp/mytharchive/work/1/newfile.mpg"
Reading from /myth/tmp/mytharchive/work/1/newfile.mpg
Input file length: 4935.89 MB
Checking for TS: failed
Checking for AVI: failed
Checking for PS: confirmed(maybe)
Video: aspect ratio: 4:3  size = 720x480  frame rate: 29.970 fps  bit rate: 6.50 Mbit/s
  vbvbuffer 1835008
Sequence Extension: chroma 4:2:0   size = 720x480  bit rate: 6.50 Mbit/s  vbvbuffer 1835008  frame rate: 29.970
starting with video PTS:  0:00:00.3159
Audiostream: layer: 2  BRate: 256 kb/s  Freq: 48.0 kHz frame size: 768 ( 0:00:00.0240 ) starting audio PTS:  0:00:00.3329
fixing audio PTS inconsistency - diff:  0:00:00.0240  - need to remove 1 frame(s)
fixing audio PTS inconsistency - diff:  0:00:00.0240  - need to remove 1 frame(s)
fixing audio PTS inconsistency - diff:  0:00:00.0240  - need to remove 1 frame(s)
fixing audio PTS inconsistency - diff:  0:00:00.0480  - need to add 2 frame(s)
encoding an MP2 audio frame
Video output File is: /myth/tmp/mytharchive/work/1/stream.mv2
Audio0 output File is: /myth/tmp/mytharchive/work/1/stream0.mp2
STARTING DEMUX
fixing audio PTS inconsistency - diff:  0:00:00.0240  - need to add 1 frame(s)
encoding an MP2 audio frame
read   1%
read   2%
read   3%
read   4%
read   5%
read   6%
read   7%
read   8%
read   9%
read  10%
read  11%
read  12%
read  13%
read  14%
fixing audio PTS inconsistency - diff:  0:00:00.0346  - need to add 1 frame(s)
encoding an MP2 audio frame
read  15%
read  16%
read  17%
read  18%
read  19%
read  20%
read  21%
read  22%
read  23%
read  24%
read  25%
read  26%
read  27%
read  28%
read  29%
read  30%
fixing audio PTS inconsistency - diff:  0:00:00.0442  - need to add 1 frame(s)
encoding an MP2 audio frame
read  31%
read  32%
video PTS inconsistent:  0:41:42.2821  0:41:42.2821  0:41:42.4155  0:41:42.0996  diff:  0:00:00.1334
read  33%
read  34%
read  35%
read  36%
read  37%
read  38%
read  39%
read  40%
read  41%
video PTS inconsistent:  0:53:48.8746  0:53:48.8746  0:53:48.3741  0:53:48.0581  diff:  0:00:00.5005
fixing audio PTS inconsistency - diff:  0:00:00.0287  - need to add 1 frame(s)
encoding an MP2 audio frame
read  42%
read  43%
read  44%
read  45%
read  46%
read  47%
read  48%
read  49%
read  50%
read  51%
read  52%
read  53%
read  54%
read  55%
read  56%
video PTS inconsistent:  1:13:19.8444  1:13:19.8444  1:13:19.9779  1:13:19.6619  diff:  0:00:00.1334
read  57%
fixing audio PTS inconsistency - diff:  0:00:00.0461  - need to add 1 frame(s)
encoding an MP2 audio frame
read  58%
read  59%
read  60%
read  61%
read  62%
read  63%
read  64%
read  65%
read  66%
fixing audio PTS inconsistency - diff:  0:00:00.0442  - need to add 1 frame(s)
encoding an MP2 audio frame
read  67%
read  68%
read  69%
read  70%
read  71%
read  72%
read  73%
read  74%
video PTS inconsistent:  1:36:50.6872  1:36:50.6872  1:36:50.1867  1:36:49.8707  diff:  0:00:00.5005
fixing audio PTS inconsistency - diff:  0:00:00.0394  - need to add 1 frame(s)
encoding an MP2 audio frame
read  75%
read  76%
read  77%
read  78%
read  79%
read  80%
fixing audio PTS inconsistency - diff:  0:00:00.0340  - need to add 1 frame(s)
encoding an MP2 audio frame
read  81%
read  82%
read  83%
read  84%
read  85%
read  86%
fixing audio PTS inconsistency - diff:  0:00:00.0333  - need to add 1 frame(s)
encoding an MP2 audio frame
read  87%
read  88%
read  89%
read  90%
read  91%
read  92%
read  93%
read  94%
read  95%
read  96%
read  97%
read  98%
read  99%
read 100%
video PTS inconsistent:  2:09:25.3732  2:09:25.3732  2:09:24.8727  2:09:24.5568  diff:  0:00:00.5005

Audio track 1 is in mp2 format - re-encoding to ac3
Encoding audio to ac3
FFmpeg version SVN-r12391, Copyright (c) 2000-2008 Fabrice Bellard, et al.
  configuration: --enable-libmp3lame --enable-libfaac --enable-liba52 --enable-libvorbis --enable-gpl --enable-shared --enable-libxvid --prefix=/usr --enable-libtheora --arch=i586 --cpu=i586 --enable-pthreads --enable-avfilter --enable-postproc
  libavutil version: 49.6.0
  libavcodec version: 51.51.0
  libavformat version: 52.9.0
  libavdevice version: 52.0.0
  libavfilter version: 0.0.0
  built on Apr 16 2008 05:24:04, gcc: 4.2.3 20071123 (prerelease) (Debian 4.2.2-4)
Stream mapping:
  Stream #0.0 -> #0.0
Press [q] to stop encoding
size=  363964kB time=15529.2 bitrate= 192.0kbits/s   
video:0kB audio:363964kB global headers:0kB muxing overhead 0.000000%
*************************************************************
Finished processing '/myth/tv/1059_20081129195900.mpg'
*************************************************************
Creating DVD XML file for dvd author (No Menus)
Adding item 1
aspect ratio is: 1.33333
Fixed length chapters: 00:00:00,00:05:00,00:10:00,00:15:00,00:20:00,00:25:00,00:30:00,00:35:00,00:40:00,00:45:00,00:50:00,00:55:00,01:00:00,01:05:00,01:10:00,01:15:00,01:20:00,01:25:00,01:30:00,01:35:00,01:40:00,01:45:00,01:50:00,01:55:00,02:00:00,02:05:00
Total size of video files, before multiplexing, is 4626 Mbytes, audio is 355 MBytes, menus are 0 MBytes.
Need to shrink MPEG2 video files to fit onto recordable DVD, video is 869.08 MBytes too big.
Need to scale by 1.21058395929
tcrequant /myth/tmp/mytharchive/work/1/stream.mv2 /myth/tmp/mytharchive/work/1/video.small.m2v 1.21058395929
[tcrequant] MPEG2 Requantiser by Makira.
[tcrequant] Using 1.210584 as factor.
Total DVD size AFTER TCREQUANT is 4367.05 MBytes
Multiplexing MPEG stream to /myth/tmp/mytharchive/work/1/final.mpg
Adding sync offset of -15ms
Available streams - video and one audio stream
Multiplex started PID=21524
Starting dvdauthor
DVDAuthor::dvdauthor, version 0.6.13.
Build options: gnugetopt magick iconv freetype fribidi
Send bugs to <dvdauthor-users@lists.sourceforge.net>

INFO: Locale=C
INFO: Converting filenames to ANSI_X3.4-1968
INFO: dvdauthor creating VTS
STAT: Picking VTS 01

STAT: Processing /usr/share/mythtv/mytharchive/intro/ntsc_blank.mpg...

INFO: Video pts = 0.178 .. 1.179
INFO: Audio[0] pts = 0.178 .. 1.170
STAT: VOBU 1 at 0MB, 1 PGCS
INFO: Generating VTSM with the following video attributes:
INFO: MPEG version: mpeg2
INFO: TV standard: ntsc
INFO: Aspect ratio: 4:3
INFO: Resolution: 720x480
INFO: Audio ch 0 format: ac3/2ch, 48khz drc

STAT: Processing /myth/tmp/mytharchive/work/1/final.mpg...
STAT: VOBU 16 at 3MB, 1 PGCS
...
ETC
...
STAT: VOBU 15520 at 4087MB, 1 PGCS
INFO: Video pts = 0.178 .. 7765.168
INFO: Audio[0] pts = 0.193 .. 15529.345
STAT: VOBU 15531 at 4271MB, 1 PGCS
INFO: Generating VTS with the following video attributes:
INFO: MPEG version: mpeg2
INFO: TV standard: ntsc
INFO: Aspect ratio: 4:3
INFO: Resolution: 720x480
INFO: Audio ch 0 format: ac3/2ch, 48khz drc

STAT: fixed 1 VOBUS                         
STAT: fixing VOBU at 3MB (17/15531, 0%)
...
ETC
...
STAT: fixing VOBU at 4087MB (15521/15531, 99%)
STAT: fixed 15531 VOBUS                         
INFO: dvdauthor creating table of contents
INFO: Scanning /myth/tmp/mytharchive/work/dvd/VIDEO_TS/VTS_01_0.IFO
INFO: Creating menu for TOC

STAT: Processing /usr/share/mythtv/mytharchive/intro/ntsc_blank.mpg...

INFO: Video pts = 0.178 .. 1.179
INFO: Audio[0] pts = 0.178 .. 1.170
STAT: VOBU 1 at 0MB, 2 PGCS
INFO: Generating VMGM with the following video attributes:
INFO: MPEG version: mpeg2
INFO: TV standard: ntsc
INFO: Aspect ratio: 4:3
INFO: Resolution: 720x480
INFO: Audio ch 0 format: ac3/2ch, 48khz drc

STAT: fixed 1 VOBUS                         
Finished  dvdauthor
Burning ISO image to /dev/dvd
growisofs -dvd-compat  -Z /dev/dvd -dvd-video -V "Stephen King's Desperation" /myth/tmp/mytharchive/work/dvd
Running growisofs to burn DVD
Executing 'genisoimage -dvd-video -V Stephen King's Desperation /myth/tmp/mytharchive/work/dvd | builtin_dd of=/dev/dvd obs=32k seek=0'
/dev/dvd: "Current Write Speed" is 16.4x1352KBps.
  0.23% done, estimate finish Sun Nov 30 12:08:59 2008
...
ETC
...
 99.88% done, estimate finish Sun Nov 30 10:33:11 2008
Total translation table size: 0
Total rockridge attributes bytes: 0
Total directory bytes: 4096
Path table size(bytes): 42
Max brk space used 0
2187538 extents written (4272 MB)
/dev/dvd: flushing cache
/dev/dvd: updating RMA
/dev/dvd: closing disc
/dev/dvd: reloading tray
Finished burning ISO image
Removing all archive items from the archiveitems DB table
Finished processing jobs!!!


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 Post subject:
PostPosted: Wed Dec 10, 2008 9:40 am 
Offline
Joined: Thu Sep 08, 2005 6:24 am
Posts: 22
Location: UK
I have exactly the same issue.

I've did an archive last night, and the audio is just noise.

I've also tried to extract the audio from radio programs I've recorded, and all the audio ends up with white noise from one channel and you can hear a bit of the recording in the other, but all at half speed.

As the myth2mp3 just uses ffmpeg, I think it's an issue to do with that??

Like you, this worked before I upgraded to 5.5

Anyone have any suggestions?!

_________________
Knoppmyth: R5F27
CASE: Silverstone LC11-M
MB: ASUS M2NPV-VM
DTV: Hauppauge WinTV Nova-T-500
FORMAT: PAL (UK)
RAM: 1GB
HDD: 400GB Samsung Spinpoint 401
TV: Samsung LE32R74BDX (via Component)


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 Post subject:
PostPosted: Wed Dec 10, 2008 9:53 am 
Offline
Joined: Thu Sep 08, 2005 6:24 am
Posts: 22
Location: UK
I think recompiling a new version of ffmpeg may solve the issues:

http://mysettopbox.tv/phpBB2/viewtopic.php?t=18547

_________________
Knoppmyth: R5F27
CASE: Silverstone LC11-M
MB: ASUS M2NPV-VM
DTV: Hauppauge WinTV Nova-T-500
FORMAT: PAL (UK)
RAM: 1GB
HDD: 400GB Samsung Spinpoint 401
TV: Samsung LE32R74BDX (via Component)


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 Profile  
 
 Post subject:
PostPosted: Tue Jan 06, 2009 7:52 pm 
Offline
Joined: Sat Dec 24, 2005 11:33 am
Posts: 400
Location: Kitsap Peninsula, Wa., United States
Ok, so I just tried to burn my first DVD on R5.5

It was two 42 Minute recordings and 1 - 3 hr football game for a friend.
On LP recording that would be about 5 hrs of playback on the DVD which I have fit easily in R5F27.

First the process took, around 30hrs to run, That may be related to the discussion in post here : http://mysettopbox.tv/phpBB2/viewtopic.php?t=18547

When I went to play this DVD back the first splash for Myth TV played fine, but as soon as I selected any of the recordings the Audio was like the Roar of a Jet engine exhaust. Just random Noise.

It appears I may have to redo ffmpeg from the above discussion and the referenced post.

What is the easiest to accomplish this?

Performing a system backup first. I know.

But then any insight from there?

TIA


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PostPosted: Tue Jan 06, 2009 8:50 pm 
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There was some talk about the same static problem with mythweb flash player. I followed the directions here and the static is gone. Haven't tried MythArchive so can't tell you if that works.

http://mysettopbox.tv/phpBB2/viewtopic.php?t=18507&start=21


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PostPosted: Sat May 23, 2009 4:07 pm 
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I've had the same noise issues with DVDs made with R5.5. Prior to R5.5, I've always had success making DVDs from standard definition shows.

There aren't any reports of a successful fix in this thread. Has someone found one? Is the update of ffmpeg the fix?

Eric

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 Post subject: it worked
PostPosted: Sat May 23, 2009 7:44 pm 
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I guess I'll answer my own question. Yes, updating works.

In the end, I updated, ffmpeg, mplayer, transcode from the recipies in the following posts:
http://knoppmyth.net/phpBB2/viewtopic.php?t=18706
http://knoppmyth.net/phpBB2/viewtopic.php?t=4706
http://mysettopbox.tv/phpBB2/viewtopic.php?t=18507

All that fixed the static problem in the dvd creation process.

6-24-09 edit:
This worked for a case of an over-the-air show from a digital tv station - using the HD-3000 card. The program already had an AC3 audio sound track.

Eric

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Last edited by neutron68 on Wed Jun 24, 2009 8:56 pm, edited 1 time in total.


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 Post subject: works in some cases
PostPosted: Wed Jun 24, 2009 8:52 pm 
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I just found a case where the ffmpeg update still isn't working during the DVD creation process - trying to convert the mp2 audio from a Hauppauge PVR card recording to AC3 audio for the dvd burn process.
The Mythburn.log file shows how it bombs out with an error:
Quote:
Audio track 1 is in mp2 format - re-encoding to ac3
Encoding audio to ac3
FFmpeg version SVN-r18890, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --prefix=/usr --extra-cflags='-Wall -g ' --cc='ccache cc' --libdir=${prefix}/lib --shlibdir=${prefix}/lib --bindir=${prefix}/bin --incdir=${prefix}/include/ffmpeg --enable-shared --enable-libmp3lame --enable-gpl --enable-libfaad --mandir=${prefix}/share/man --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-libamr-nb --enable-libamr-wb --enable-x11grab --enable-libgsm --enable-libx264 --enable-libtheora --enable-libdc1394 --enable-libspeex --enable-nonfree --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libschroedinger --disable-encoder=libschroedinger --enable-avfilter-lavf --enable-libopenjpeg --disable-altivec --disable-armv5te --disable-armv6 --disable-vis
libavutil 50. 3. 0 / 50. 3. 0
libavcodec 52.29. 0 / 52.29. 0
libavformat 52.33. 0 / 52.33. 0
libavdevice 52. 2. 0 / 52. 2. 0
libavfilter 0. 5. 0 / 0. 5. 0
libswscale 0. 7. 1 / 0. 7. 1
libpostproc 51. 2. 0 / 51. 2. 0
built on May 21 2009 10:42:53, gcc: 4.3.3
Input #0, mp3, from '/myth/tmp/work/1/stream0.mp2':
Duration: 00:46:20.65, start: 0.000000, bitrate: 319 kb/s
Stream #0.0: Audio: mp2, 48000 Hz, stereo, s16, 320 kb/s
[ac3 @ 0x80a08e0]No channel layout specified. The encoder will guess the layout, but it might be incorrect.
Output #0, ac3, to '/myth/tmp/work/1/stream0.ac3':
Stream #0.0: Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop encoding
[mp2 @ 0x8081ae0]big_values too big
size= 65261kB time=2784.48 bitrate= 192.0kbits/s
video:0kB audio:65261kB global headers:0kB muxing overhead 0.000000%
*** glibc detected *** ffmpeg: free(): invalid pointer: 0xb48b9020 ***
======= Backtrace: =========
/lib/libc.so.6[0xb743f215]
/lib/libc.so.6(cfree+0x9c)[0xb7440aec]
/usr/lib/i686/cmov/libavutil.so.50(av_freep+0x16)[0xb7593c16]

--snipped out memory map data--

************************************************************
ERROR: Failed while running ffmpeg to re-encode the audio to ac3
Command was ffmpeg -v 0 -y -threads 2 -i '/myth/tmp/work/1/stream0.mp2' -f ac3 -ab 192k -ar 48000 '/myth/tmp/work/1/stream0.ac3'
************************************************************

Terminated

Anyone else seeing this from Hauppauge PVR recordings?

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PostPosted: Sat Jun 27, 2009 12:49 pm 
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I have a theory. The Hauppauge PVR recordings I tried to make dvds of, were edited using the Mythtv lossless transcode editing. I trimmed off the beginning and end of the show.

I just tried to burn those same edited files to a dvd over on a Windows machine and there were problems - GOP errors in the mpg file and the video/audio would run at half speed inside DVD authoring software (Ulead DVD Movie Factory).

In order to get the video to play at the correct speed, I trimmed a few video frames off the start of the program and resaved the mpg file. That did it. I was able to make a dvd where the video/audio ran at the correct speed.

So, my bet is that if I do not use Mythtv's lossless transcode editing on files recorded with the Hauppauge PVR cards, I will have no trouble using Mytharchive to make DVDs.

I'll test this theory and report back.

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PostPosted: Sat Jun 27, 2009 3:33 pm 
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I almost never have problems with it, and it usually indicates a recordings with some kind of subtle problem. Occasionally it will produce a DVD where the audio drops out after one of the cuts, but that's very rare.

My recommendations for using it:
    - Always make your PVR recordings at 720x480, this avoids a number of issues.
    - Don't go overboard on the bit rate, 6000 avg. 8000 max is what I tend to use for my high quality setting, and for long recordings you might want to drop it a hair (say 5500 & 7000, or even 5000 & 7000)
    - Try to mark your cut points on keyframe boundaries, and always clip the start and end of the stream.
    - I use the lossless transcoder on all my recordings ahead of time, and almost never let MythArchive transcode stuff. This seems to produce the most reliable results.
    - Try to minimize other activity on the system when MythArchive is running. I strongly suspect that something about the way it splits and the audio and video streams is timing sensitive.


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PostPosted: Sat Jun 27, 2009 5:59 pm 
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I just found out that the key is to make sure your start-of-program edit is a keyframe edit. That is all I had to do to my recordings that bombed out previously, and MythArchive could make a successful dvd out of them. The rest of my edits were just regular single frame edits (delete before this frame or delete after this frame).

tjc, your checklist lines up with the way I have always set my PVR recordings and Mytharchive projects. So, I'm good, with nothing else to modify! Sweet!

Thanks for the input.
Eric

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 Post subject:
PostPosted: Thu Jul 23, 2009 9:53 am 
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I recall some problems like this that were solved by always cutting at least a small amount off the front of the recording by editing with mythfrontend while watching it.

Edit, import commercial list to cutlist, make sure a little is cut off the front, MythArchive using cutlist.

FYI, I am running an updated ffmpeg too.


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PostPosted: Fri Aug 07, 2009 9:01 am 
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Thanks for this thread! I was trying to use transcode to help get it through. Removing a little in the beginning cured it and I don't have to wait for the tedious transcode! I'm still using the stock R5.5 ffmpeg.

/Chris

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