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 Post subject: Transcoding problems
PostPosted: Fri Feb 16, 2007 9:47 am 
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Joined: Tue Aug 08, 2006 7:08 pm
Posts: 561
Location: UK
Having edited out ads using lossless transcode, I've had problems with a couple of UK DVB-T recordings. What seems to have happened that the main soundtrack has been switched with the 2nd soundtrack, so when playing back it's either silence or an Audio Description track. I haven't burned these to DVDs yet, but I'm worried that I'm going to end up with silence or AD track only.
Is there any fix for this?

The second problem is, after recording "Wanted" on ITV4 which is recorded at 544x576, after removing the Ads using lossless transcoding, there seems to be a problem with fast-forwarding resulting in a strange effect and I don't it's even ffwding properly either. In addition when trying to write to a DVD using mytharchive, it estimates a filesize between 3 and 4 times the source file. Though ffwd works OK in xine after being written to disk.
So how can I get this to resize to 720x576, so I can have a fixed file for ffwd and results in a file that easy to process for MythArchive?

TIA
Bruce S.

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 Post subject:
PostPosted: Thu Mar 08, 2007 5:49 pm 
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Joined: Tue Aug 08, 2006 7:08 pm
Posts: 561
Location: UK
Anyone?.....Bueller?

:)

Just as an update, tried to burn a .mkv file to DVD, when playing back, the video appeared OK, the sound was really strange, like it was skipping though the sound on fast forward, with it ending up silent after a few minutes.
I've played the original .mkv in mplayer and it was OK.
Does anyone have a solution with that one?

FYI the /myth/tmp/logs/progress.log:
Code:
2007-03-08 14:23:14 mythburn.py (0.1.20061201-1) starting up...
2007-03-08 14:23:14 Found 1 CPUs
2007-03-08 14:23:14 Obtaining MythTV settings from MySQL database for hostname homenet-pvr
2007-03-08 14:23:15 Processing Mythburn job number 1.
2007-03-08 14:23:15 Options - mediatype = 0, doburn = 1, createiso = 0, erasedvdrw = 1
2007-03-08 14:23:15           savefilename = ''
2007-03-08 14:23:15 Looking for: /usr/share/mythtv/mytharchive/themes/G.A.N.T./theme.xml
2007-03-08 14:23:15 Loading font 0, /usr/share/mythtv/FreeSans.ttf size 23
2007-03-08 14:23:15 Loading font 1, /usr/share/mythtv/FreeSans.ttf size 19
2007-03-08 14:23:15 Loading font 2, /usr/share/mythtv/FreeSans.ttf size 17
2007-03-08 14:23:15 wantIntro: 1, wantMainMenu: 1, wantChapterMenu:1, wantDetailsPage: 1
2007-03-08 14:23:15 Final DVD Video format will be pal
2007-03-08 14:23:19 There are 2 files to process
2007-03-08 14:23:33 Pre-processing file '/myth/video/standoff.s01e06.hdtv.xvid-xor.avi' of type 'video'
2007-03-08 14:23:33           standoff s01e06 hdtv xvid-xor
2007-03-08 14:23:34 streaminfo.xml :-
<?xml version="1.0" ?><!DOCTYPE FILEINFO><file duration="2538" filename="/myth/video/standoff.s01e06.hdtv.xvid-xor.avi" type="avi">
        <streams count="2">
                <video aspectratio="1.80952" bitrate="0" codec="mpeg4" ffmpegindex="0" fps="23.9791" height="336" id="0" streamindex="0" width="608"/>
                <audio bitrate="128000" channels="2" codec="mp3" ffmpegindex="1" id="1" language="N/A" samplerate="48000" streamindex="1"/>
        </streams>
</file>
2007-03-08 14:23:34 Video resolution is 608 by 336
2007-03-08 14:23:34 Pre-processing file '/myth/video/stargate.atlantis.s03e19.720.hdtv.x264-mint.mkv' of type 'video'
2007-03-08 14:23:34           stargate atlantis s03e19 720 hdtv x264-mint
2007-03-08 14:23:34 streaminfo.xml :-
<?xml version="1.0" ?><!DOCTYPE FILEINFO><file duration="2583" filename="/myth/video/stargate.atlantis.s03e19.720.hdtv.x264-mint.mkv" type="matroska">
        <streams count="2">
                <video aspectratio="1.77778" bitrate="0" codec="h264" ffmpegindex="0" fps="0.0833333" height="720" id="0" streamindex="0" width="1280"/>
                <audio bitrate="0" channels="2" codec="ac3" ffmpegindex="1" id="1" language="N/A" samplerate="48000" streamindex="1"/>
        </streams>
</file>
2007-03-08 14:23:34 Video resolution is 1280 by 720
2007-03-08 14:23:34 *************************************************************
2007-03-08 14:23:34 Processing file /myth/video/standoff.s01e06.hdtv.xvid-xor.avi of type video
2007-03-08 14:23:34 *************************************************************
2007-03-08 14:23:34 File type is 'avi'
2007-03-08 14:23:34 Video codec is 'mpeg4'
2007-03-08 14:23:35 streaminfo.xml :-
<?xml version="1.0" ?><!DOCTYPE FILEINFO><file duration="2538" filename="/myth/video/standoff.s01e06.hdtv.xvid-xor.avi" type="avi">
        <streams count="2">
                <video aspectratio="1.80952" bitrate="0" codec="mpeg4" ffmpegindex="0" fps="23.9791" height="336" id="0" streamindex="0" width="608"/>
                <audio bitrate="128000" channels="2" codec="mp3" ffmpegindex="1" id="1" language="N/A" samplerate="48000" streamindex="1"/>
        </streams>
</file>
2007-03-08 14:23:35 Preferred audio languages eng and eng
2007-03-08 14:23:35 Video id: 0x0, Audio1: [1] 0x1 (MP3, N/A), Audio2: [-1] - 0x-1 (N/A, N/A)
2007-03-08 14:23:35 Unknown aspect ratio 1.809520 - Using 16:9
2007-03-08 14:23:35 Re-encoding audio and video
2007-03-08 14:23:35 Encoding profile (SP) found
2007-03-08 14:23:35 ffmpeg -v 1 -i "/myth/video/standoff.s01e06.hdtv.xvid-xor.avi" -r pal -target dvd -b 4771k -s 720x576 -acodec ac3 -ab 192 -ac 2 -copyts -aspect 16:9 "/myth/tmp/work/1/newfile2.mpg" -map 0:0 -map 0:1
2007-03-08 15:04:36 streaminfo.xml :-
<?xml version="1.0" ?><!DOCTYPE FILEINFO><file duration="2538" filename="/myth/tmp/work/1/newfile2.mpg" type="mpeg">
        <streams count="2">
                <video aspectratio="1.77778" bitrate="9000000" codec="mpeg2video" ffmpegindex="0" fps="25" height="576" id="480" streamindex="0" width="720"/> 
                <audio bitrate="192000" channels="2" codec="ac3" ffmpegindex="1" id="128" language="N/A" samplerate="48000" streamindex="1"/>
        </streams>
</file>
2007-03-08 15:04:36 Preferred audio languages eng and eng
2007-03-08 15:04:36 Video id: 0x1e0, Audio1: [1] 0x80 (AC3, N/A), Audio2: [-1] - 0x-1 (N/A, N/A)
2007-03-08 15:04:36 Splitting MPEG stream into audio and video parts
2007-03-08 15:04:36 Running: mythreplex --demux  --fix_sync -o /myth/tmp/work/1/stream -v 224 -c 128 "/myth/tmp/work/1/newfile2.mpg"
2007-03-08 15:07:01 Audio is already in ac3 format
2007-03-08 15:07:01 Extracting thumbnail image from /myth/tmp/work/1/stream.mv2 at position 10
2007-03-08 15:07:01 Destination file /myth/tmp/work/1/thumbnail.jpg
2007-03-08 15:07:04 *************************************************************
2007-03-08 15:07:04 Finished processing file /myth/video/standoff.s01e06.hdtv.xvid-xor.avi
2007-03-08 15:07:04 *************************************************************
2007-03-08 15:07:04 *************************************************************
2007-03-08 15:07:04 Processing file /myth/video/stargate.atlantis.s03e19.720.hdtv.x264-mint.mkv of type video
2007-03-08 15:07:04 *************************************************************
2007-03-08 15:07:04 File type is 'matroska'
2007-03-08 15:07:04 Video codec is 'h264'
2007-03-08 15:07:04 streaminfo.xml :-
<?xml version="1.0" ?><!DOCTYPE FILEINFO><file duration="2583" filename="/myth/video/stargate.atlantis.s03e19.720.hdtv.x264-mint.mkv" type="matroska">
        <streams count="2">
                <video aspectratio="1.77778" bitrate="0" codec="h264" ffmpegindex="0" fps="0.0833333" height="720" id="0" streamindex="0" width="1280"/>
                <audio bitrate="0" channels="2" codec="ac3" ffmpegindex="1" id="1" language="N/A" samplerate="48000" streamindex="1"/>
        </streams>
</file>
2007-03-08 15:07:04 Preferred audio languages eng and eng
2007-03-08 15:07:04 Video id: 0x0, Audio1: [1] 0x1 (AC3, N/A), Audio2: [-1] - 0x-1 (N/A, N/A)
2007-03-08 15:07:04 Aspect ratio is 16:9
2007-03-08 15:07:04 Re-encoding audio and video
2007-03-08 15:07:04 Encoding profile (SP) found
2007-03-08 15:07:04 ffmpeg -v 1 -i "/myth/video/stargate.atlantis.s03e19.720.hdtv.x264-mint.mkv" -r pal -target dvd -b 4771k -s 720x576 -acodec copy -copyts -aspect 16:9 "/myth/tmp/work/2/newfile2.mpg" -map 0:0 -map 0:1
2007-03-08 16:24:30 streaminfo.xml :-
<?xml version="1.0" ?><!DOCTYPE FILEINFO><file duration="2583" filename="/myth/tmp/work/2/newfile2.mpg" type="mpeg">
        <streams count="2">
                <video aspectratio="1.77778" bitrate="9000000" codec="mpeg2video" ffmpegindex="0" fps="25" height="576" id="480" streamindex="0" width="720"/> 
                <audio bitrate="384000" channels="2" codec="ac3" ffmpegindex="1" id="128" language="N/A" samplerate="48000" streamindex="1"/>
        </streams>
</file>
2007-03-08 16:24:30 Preferred audio languages eng and eng
2007-03-08 16:24:30 Video id: 0x1e0, Audio1: [1] 0x80 (AC3, N/A), Audio2: [-1] - 0x-1 (N/A, N/A)
2007-03-08 16:24:30 Splitting MPEG stream into audio and video parts
2007-03-08 16:24:30 Running: mythreplex --demux  --fix_sync -o /myth/tmp/work/2/stream -v 224 -c 128 "/myth/tmp/work/2/newfile2.mpg"
2007-03-08 16:27:09 Audio is already in ac3 format
2007-03-08 16:27:09 Extracting thumbnail image from /myth/tmp/work/2/stream.mv2 at position 10
2007-03-08 16:27:09 Destination file /myth/tmp/work/2/thumbnail.jpg
2007-03-08 16:27:11 *************************************************************
2007-03-08 16:27:11 Finished processing file /myth/video/stargate.atlantis.s03e19.720.hdtv.x264-mint.mkv
2007-03-08 16:27:11 *************************************************************
2007-03-08 16:27:11 Menu items per page 3
2007-03-08 16:27:11 Background image file is /usr/share/mythtv/mytharchive/themes/G.A.N.T./GANT-Background.png
2007-03-08 16:27:11 Music is menumusic.ac3, length is 15 seconds
2007-03-08 16:27:11 Creating DVD menus
2007-03-08 16:27:11 Menu page 1
2007-03-08 16:27:11 Added image /myth/tmp/work/1/thumbnail.jpg
2007-03-08 16:27:11 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:27:12 Added image /myth/tmp/work/2/thumbnail.jpg
2007-03-08 16:27:12 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:27:15 Encoding Menu Page 1 using aspect ratio '4:3'
2007-03-08 16:27:58 Chapter items per page 8
2007-03-08 16:27:58 Background image file is /usr/share/mythtv/mytharchive/themes/G.A.N.T./GANT-Background.png
2007-03-08 16:27:58 Music is menumusic.ac3, length is 15 seconds
2007-03-08 16:27:58 Creating DVD sub-menus
2007-03-08 16:27:58 Sub-menu 1
2007-03-08 16:27:58 Video length is 2538 seconds. Each chapter will be 317 seconds
2007-03-08 16:27:58 Extracting thumbnail images from: /myth/tmp/work/1/stream.mv2 - at 10,317,634,951,1268,1585,1902,2219,
2007-03-08 16:27:58 Destination file /myth/tmp/work/1/chapter-%1.jpg
2007-03-08 16:28:20 Added image /myth/tmp/work/1/chapter-1.jpg
2007-03-08 16:28:20 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:28:20 Added image /myth/tmp/work/1/chapter-2.jpg
2007-03-08 16:28:20 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:28:21 Added image /myth/tmp/work/1/chapter-3.jpg
2007-03-08 16:28:21 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:28:21 Added image /myth/tmp/work/1/chapter-4.jpg
2007-03-08 16:28:21 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:28:21 Added image /myth/tmp/work/1/chapter-5.jpg
2007-03-08 16:28:21 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:28:21 Added image /myth/tmp/work/1/chapter-6.jpg
2007-03-08 16:28:21 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:28:21 Added image /myth/tmp/work/1/chapter-7.jpg
2007-03-08 16:28:21 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:28:21 Added image /myth/tmp/work/1/chapter-8.jpg
2007-03-08 16:28:21 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:28:21 Added titlemenu button image /usr/share/mythtv/mytharchive/images/previous.png
2007-03-08 16:28:21 Added titlemenu button mask image /usr/share/mythtv/mytharchive/images/previous.png
2007-03-08 16:28:23 aspect ratio is: 1.77778
2007-03-08 16:28:23 Encoding Chapter Menu Page 1 using aspect ratio 'Video'
2007-03-08 16:29:04 Sub-menu 2
2007-03-08 16:29:04 Video length is 2583 seconds. Each chapter will be 322 seconds
2007-03-08 16:29:04 Extracting thumbnail images from: /myth/tmp/work/2/stream.mv2 - at 10,322,644,966,1288,1610,1932,2254,
2007-03-08 16:29:04 Destination file /myth/tmp/work/2/chapter-%1.jpg
2007-03-08 16:29:23 Added image /myth/tmp/work/2/chapter-1.jpg
2007-03-08 16:29:23 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:29:23 Added image /myth/tmp/work/2/chapter-2.jpg
2007-03-08 16:29:23 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:29:23 Added image /myth/tmp/work/2/chapter-3.jpg
2007-03-08 16:29:23 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:29:23 Added image /myth/tmp/work/2/chapter-4.jpg
2007-03-08 16:29:23 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:29:23 Added image /myth/tmp/work/2/chapter-5.jpg
2007-03-08 16:29:23 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:29:23 Added image /myth/tmp/work/2/chapter-6.jpg
2007-03-08 16:29:23 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:29:23 Added image /myth/tmp/work/2/chapter-7.jpg
2007-03-08 16:29:23 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:29:23 Added image /myth/tmp/work/2/chapter-8.jpg
2007-03-08 16:29:23 Added button image /usr/share/mythtv/mytharchive/themes/G.A.N.T./blank.png
2007-03-08 16:29:23 Added titlemenu button image /usr/share/mythtv/mytharchive/images/previous.png
2007-03-08 16:29:23 Added titlemenu button mask image /usr/share/mythtv/mytharchive/images/previous.png
2007-03-08 16:29:26 aspect ratio is: 1.77778
2007-03-08 16:29:26 Encoding Chapter Menu Page 2 using aspect ratio 'Video'
2007-03-08 16:30:06 Creating details pages
2007-03-08 16:30:06 Background image file is /usr/share/mythtv/mytharchive/themes/G.A.N.T./GANT-Background.png
2007-03-08 16:30:06 Music is silence.ac3, length is 5 seconds
2007-03-08 16:30:06 Creating details page for 1
2007-03-08 16:30:07 Added image /myth/tmp/work/1/thumbnail.jpg
2007-03-08 16:30:09 aspect ratio is: 1.77778
2007-03-08 16:30:09 Encoding Details Page 1
2007-03-08 16:30:22 Creating details page for 2
2007-03-08 16:30:22 Added image /myth/tmp/work/2/thumbnail.jpg
2007-03-08 16:30:25 aspect ratio is: 1.77778
2007-03-08 16:30:25 Encoding Details Page 2
2007-03-08 16:30:37 Menu items per page 3
2007-03-08 16:30:37 Chapters per recording 8
2007-03-08 16:30:37 Creating DVD XML file for dvd author
2007-03-08 16:30:37 Menu page 1
2007-03-08 16:30:37 aspect ratio is: 1.77778
2007-03-08 16:30:37 aspect ratio is: 1.77778
2007-03-08 16:30:37 Video length is 2538 seconds. Each chapter will be 317 seconds
2007-03-08 16:30:37 aspect ratio is: 1.77778
2007-03-08 16:30:37 aspect ratio is: 1.77778
2007-03-08 16:30:37 Video length is 2583 seconds. Each chapter will be 322 seconds
2007-03-08 16:30:38 Total size of video files, before multiplexing, is 1713 Mbytes, audio is 73 MBytes, menus are 5 MBytes.
2007-03-08 16:30:38 Video will fit onto DVD. 2605.35 MBytes of space remaining on recordable DVD.
2007-03-08 16:30:38 Multiplexing MPEG stream to /myth/tmp/work/1/final.mpg
2007-03-08 16:30:38 Available streams - video and one audio stream
2007-03-08 16:30:38 Multiplex started PID=30800
2007-03-08 16:30:38 Multiplexing MPEG stream to /myth/tmp/work/2/final.mpg
2007-03-08 16:30:38 Available streams - video and one audio stream
2007-03-08 16:30:38 Multiplex started PID=30801
2007-03-08 16:30:38 Starting dvdauthor
2007-03-08 16:35:01 Finished  dvdauthor
2007-03-08 16:35:01 Burning ISO image to /dev/dvd
2007-03-08 16:41:48 Finished burning ISO image
2007-03-08 16:41:48 Finished processing jobs!!!


Bruce S.

_________________
Updated 2019/10/26: AthlonII X2 265 Gigabyte GA-970A-DS3P
16Gb PC 1866 DDR3, 500GB+2TB+4TB SATA HDD,
SATA DVD-RW Asus DRW-24D5MT , NVIDIA GeForce GT1080
Hauppauage Nova-T 500, Nova-T LinHes R8.6.1


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 Post subject:
PostPosted: Sun Mar 11, 2007 9:17 am 
Offline
Joined: Tue Aug 08, 2006 7:08 pm
Posts: 561
Location: UK
Further update, I ran into both the original problems on the same 2 recordings yesterday ("The Closer" & "Without a Trace" on More4), the frame size being odd and after doing a lossless transcode the sound being on the wrong channel so when using mytharchive, no sound was available on the DVD.

Is anyone familiar with these apps that they can give me some tips so I can work around these problems?

Bruce S.

Edited to add info.

_________________
Updated 2019/10/26: AthlonII X2 265 Gigabyte GA-970A-DS3P
16Gb PC 1866 DDR3, 500GB+2TB+4TB SATA HDD,
SATA DVD-RW Asus DRW-24D5MT , NVIDIA GeForce GT1080
Hauppauage Nova-T 500, Nova-T LinHes R8.6.1


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 Post subject: Your Sound problems
PostPosted: Wed Mar 14, 2007 3:42 am 
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Joined: Wed Nov 09, 2005 1:21 pm
Posts: 161
Location: Manchester UK
I did alter some scripts for mythburn to fix this but i didnt realise this was still a problem in mytharchive.

I have a simple fix for you although it will only work for new recordings. In the main setup menu select

tuners > your dvb card

In the advanced page check "use hardware mpeg decoding" ime not at my box the mo but i think that is what it is called.

This will force the tuner to only record the primary audio track on your new recordings. this meens you will only get the correct sound track on your DVD burns.

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Running:-
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Thermaltake Fanless CPU Cooler
Asus P5GS
Samsung 750G Sata HDD
8400 512m Video Card
2 * jetway DVB-t
1 * Haupage DVB-S2 Card
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 Post subject:
PostPosted: Wed Mar 14, 2007 7:26 pm 
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Joined: Tue Aug 08, 2006 7:08 pm
Posts: 561
Location: UK
It appears it's a problem with the lossless transcoding, on certain channels, (More4, Channel4 and BBC Three, so far) and certain programmes, the audio appears to have been "swapped" between channels after lossless transcode.

Bruce S.

_________________
Updated 2019/10/26: AthlonII X2 265 Gigabyte GA-970A-DS3P
16Gb PC 1866 DDR3, 500GB+2TB+4TB SATA HDD,
SATA DVD-RW Asus DRW-24D5MT , NVIDIA GeForce GT1080
Hauppauage Nova-T 500, Nova-T LinHes R8.6.1


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PostPosted: Thu Mar 15, 2007 2:26 am 
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Joined: Wed Nov 09, 2005 1:21 pm
Posts: 161
Location: Manchester UK
The suggestion i made should only alow one audio channel to be recoded thus preventing the sound chanels from being mixed up ?

_________________
Running:-
Intel 930 3GHz dual Core
Thermaltake Fanless CPU Cooler
Asus P5GS
Samsung 750G Sata HDD
8400 512m Video Card
2 * jetway DVB-t
1 * Haupage DVB-S2 Card
Samsung Sata 16x DVDRW
2048M Ram
1 * Netop Ion 330


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