[mythtv-users] Anyone Burning DVDs from MPEG4 Nuv Files

[Mike Smith]

Hi,

I'm trying to archive TV shows captured as MPEG4 nuv
files onto DVD+Rs.  All of the posts I see start with
the MPEG2 files captured from the hardware cards.  I
can add a card for future use,  but I have about 150GB
of shows I'd like to archive in the original format.
So far,  I'm just making coasters.

First,  I'm capturing files in MPEG4 format with the
following from nuvinfo:

info for: 1012_20031228113000_20031228120000.nuv
 
aspect:  1
audio_bits_per_sample:  16
audio_channels:  2
audio_compression_ratio:  11
audio_fourcc:  1162690892
audio_quality:  5
audio_sample_rate:  32000
audioblocks:  -1
desiredheight:  0
desiredwidth:  0
finfo:  MythTVVideo
fps:  29.97
height:  480
keyframeadjust_offset:  0
keyframedist:  30
lavc_bitrate:  2200000
lavc_maxqdiff:  3
lavc_qmax:  15
lavc_qmin:  2
pimode:  P
rtjpeg_chroma_filter:  0
rtjpeg_luma_filter:  0
rtjpeg_quality:  0
seektable_offset:  520600554
textsblocks:  -1
version:  0.07
video_fourcc:  1482049860
videoblocks:  -1
width:  640


I'm capturing audio at 32000 Hz because I'm using 
btaudio.  I'm told that btaudio can only capture
at that rate.  Changing the audio bitrate in MythTV
has no effect.  Files are still at 32000.

I started with nuvexport.  Took a look at the
export SVCD module to try to create an export DVD
module.  Several of the commands,  like mpeg2enc have
options to specify the format of the output.  In
the case of mpeg2enc,  the option is --format 8 for
a DVD.  The commands executed are:

nice -n 19 mythtranscode -p autodetect -c 1012 -s
2003-12-28-11-30-00 -f fifodir.6538 --fifosync


nice -n 19 sox -t raw -r 32000 -s -w -c 2
fifodir.6538/audout -t raw -r 48000 -s -w -c 2 -
resample | nice -n 19 toolame -s 48.0 -m j -b 224 -
1012_20031228113000_20031228120000.mp2


nice -n 19 ffmpeg -f rawvideo -s 640x480 -r 29.97 -i
fifodir.6538/vidout -f yuv4mpegpipe - | nice -n 19
yuvdenoise -r 16 | nice -n 19 yuvscaler -v 0
-n n -M BICUBIC -O DVD | nice -n 19 mpeg2enc --format
8 --quantisation 5 --quantisation-reduction 2
--video-bitrate 02500 --aspect 2
--frame-rate 4 --interlace-mode 0
--motion-search-radius 24 --video-buffer 230
--nonvideo-bitrate 0192 --sequence-length 795
--reduction-4x4
1 --reduction-2x2 1 --keep-hf -o
1012_20031228113000_20031228120000.m2v


nice -n 19 tcmplex -m d -i
1012_20031228113000_20031228120000.m2v -p
1012_20031228113000_20031228120000.mp2 -o "myshow
.mpg"


dvdauthor -o mydvd myshow.mpg

dvdauthor -T -o mydvd

where mydvd is the folder containing the system to be
burned to DVD.

I then insert a blank DVD (I use DVD+R) into my drive
and run the following
command:

growisofs -Z /dev/scd0 -V LABEL -dvd-compat mydvd 

Final output file is:

$ nuvinfo VTS_01_1.VOB
[tcprobe] MPEG program stream (PS)
 
 
info for: VTS_01_1.VOB
 
audio_sample_rate:  48000
fps:  29
height:  480
width:  720
 
done


I end up with a DVD that I can view using Xine on the
computer,  but when I put it into my DVD Player it
grings for 30 seconds than claims there's no disk.
I also put it into a laptop with a DVD reader and
can't mount it or run it with Xine.

I've tried it in two different DVD Players with no
results.  One is about 3 years old.  The other about 
18-24 months old.

Two other questions:

1) growisofs changes directories/files from upper case
to lower case ( VIDEO_TS and AUDIO_TS to video_ts and
audio_ts )

2) Does growisofs detect the type of media ( DVD+R
versus DVD-R ).  I don't see an option for specifying
media type.  I'm using DVD+R, but my burner will burn
DVD-R, also.

Sorry for the length of the post.  Its a complicated
subject.

Thanks,

Mike

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