help - dvb capture

[tezenoy]

hey guys,
lately when i cap DVB using ProgDVB or the capture program that came with my card, i get some problems while trying to xvid it.
sometimes i get this error message with virtualdub-mpeg2:
http://img98.echo.cx/img98/3697/17vp.jpg
but the problem i want to ask about, occurs even if this error doesn't appear so i don't think it's the issue.
anyway, the problem is:
i delete the first seconds from the wav file in order to make the xvid sound in sync, like always, and it works fine and in sync.
in some stage, there is some weird error in the picture and a green color or something, and after that, the audio is not in sync anymore.. the sound comes before the talking.
BUT, the weird error happens in the original mpg file, but the sync stays fine in the mpg file. the sync-error occurs only in the xvid file after the odd error.
i must find a way to fix it. please help

[Baldrick]

moving you to our digitaltv section.

try "fix" the recorded video with pvastrumento or projectx.

[tezenoy]

thank you very much.
i fixed the mpg with pvastrumento. it found the errors in the right times.
i need to re encode as xvid to know if the problems are solved, but i think they are.
thanks alot!

[tezenoy]

it worked
thank you! you were very helpful

[tezenoy]

blah
when i said it worked, i encoded only one minute before and after the error happens.
after i fixed the mpg, i tried to encode the whole thing together and it happend again even with the fixed mpg

---- edited message - update:
i can't believe it
all i did is "scan" in pva strumento
i thought it fixed it all but i didn't re-save the mpg
now i did.. hope it will work now

[tezenoy]

I saved a new mpg with PVAStrumento. according to what i said it fixed everything but the new mpg was out of sync badly.
here is the log:
Stream info for
F:\1.mpg

Found 1 video stream.
Found 1 MPEG audio stream.

VIDEO #1
Resolution 640 x 576
Aspect ratio is 4:3
Frame rate 25.00 fps
Nominal bitrate 3550000 bps
First PTS: 00:00:01.060

MPEG AUDIO #1
MPEG1, Layer 2
joint stereo, sampled at 48.0 kHz.
Bitrate 192 kbps
Each frame contains 24.0 ms audio (576 bytes)
First PTS: 00:00:00.457

***
*** PVAStrumento 2.1.0.15
*** running at 06-22-2005 04:04
***
Pre-Scanning input. Takes some time.
Stream info for
F:\1.mpg

Found 1 video stream.
Found 1 MPEG audio stream.

VIDEO #1
Resolution 640 x 576
Aspect ratio is 4:3
Frame rate 25.00 fps
Nominal bitrate 3550000 bps
First PTS: 00:00:01.060

MPEG AUDIO #1
MPEG1, Layer 2
joint stereo, sampled at 48.0 kHz.
Bitrate 192 kbps
Each frame contains 24.0 ms audio (576 bytes)
First PTS: 00:00:00.457


==SCANNING==
Input: F:\1.mpg
Closing starting GOP.
Aiming for sync at 00:00:01.140
Cutting audio.
Audio stream 1 now starts at 00:00:01.129
Video stream 1 now starts at 00:00:01.140
[ Found a GOP with more than 15 pics.
This is not DVD compliant, but many players accept it.
See summary for total number at end. ]
ALERT> Audio 1: 8 audio frames missing at 00:04:04.660
ALERT> Audio 1: 8 audio frames missing at 00:04:04.860
ALERT> Audio 1: 7 audio frames missing at 00:08:46.060
ALERT> Temporal structure wrong in GOP at 00:08:46.660. Dropping.
ALERT> 1 video frames missing at 00:08:46.660.
ALERT> Dropping GOP for sync.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:08:47.545
Cutting video.
Closing starting GOP.
Aiming for sync at 00:08:47.860
Cutting audio.
Audio stream 1 now starts at 00:08:47.857
Video stream 1 now starts at 00:08:47.860
ALERT> Audio 1: 5 audio frames missing at 00:24:05.660
ALERT> Audio 1: 7 audio frames missing at 00:30:25.180
ALERT> Audio 1: 5 audio frames missing at 00:30:50.860
ALERT> Audio 1: 7 audio frames missing at 00:38:37.820
ALERT> Audio 1: 8 audio frames missing at 00:38:41.420
Last fileset:
1055459360 total bytes written
Video 1: 61561 frames, 00:41:02.440
Audio 1: 102785 frames, 00:41:06.840

Sync estimate at EOF:
MPEG Audio #1 : sync

Video statistics
================
GOP length (min/avg/max):
3 / 13 / 17 [frames]
54225 / 224779 / 307090 [Bytes]
GOP bitrate (min/avg/max):
2307 / 3269 / 5874 [kbps]

++ INFO:
++ 103 GOP(s) with more than 15 frames were found
++ This is not "DVD-compliant"
++ It _may_ cause problems in DVD-authoring or
++ with some DVD players



(Autosaving log to /dev/null.txt)
Cannot save to /dev/null.txt
***
*** PVAStrumento 2.1.0.15
*** running at 06-22-2005 04:04
***
Pre-Scanning input. Takes some time.
Stream info for
F:\1.mpg

Found 1 video stream.
Found 1 MPEG audio stream.

VIDEO #1
Resolution 640 x 576
Aspect ratio is 4:3
Frame rate 25.00 fps
Nominal bitrate 3550000 bps
First PTS: 00:00:01.060

MPEG AUDIO #1
MPEG1, Layer 2
joint stereo, sampled at 48.0 kHz.
Bitrate 192 kbps
Each frame contains 24.0 ms audio (576 bytes)
First PTS: 00:00:00.457


<<Make PS>>
Input: F:\1.mpg
Options
.. fixing startup delay.
.. fixing stream synch.
.. keeping track of audio offset accumulation.
.. strict checking of audio framing.
.. dropping GOPs longer than 980 KB
.. splitting on change of video format.
.. splitting on change of audio format.
.. splitting on number of audio tracks.
.. clearing CDF
.. creating new GOP timecodes.

Closing starting GOP.
Aiming for sync at 00:00:01.140
Cutting audio.
Audio stream 1 now starts at 00:00:01.129
Video stream 1 now starts at 00:00:01.140
New program stream : F:\test.mpg
[ Found a GOP with more than 15 pics.
This is not DVD compliant, but many players accept it.
See summary for total number at end. ]
ALERT> Audio 1: 8 audio frames missing at 00:04:04.660
ALERT> Audio 1: 8 audio frames missing at 00:04:04.860
ALERT> Audio 1: 7 audio frames missing at 00:08:46.060
ALERT> Temporal structure wrong in GOP at 00:08:46.660. Dropping.
ALERT> 1 video frames missing at 00:08:46.660.
ALERT> Dropping GOP for sync.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:08:47.545
Cutting video.
Closing starting GOP.
Aiming for sync at 00:08:47.860
Cutting audio.
Audio stream 1 now starts at 00:08:47.857
Video stream 1 now starts at 00:08:47.860
ALERT> Audio 1: 5 audio frames missing at 00:24:05.660
ALERT> Audio 1: 7 audio frames missing at 00:30:25.180
ALERT> Audio 1: 5 audio frames missing at 00:30:50.860
ALERT> Audio 1: 7 audio frames missing at 00:38:37.820
ALERT> Audio 1: 8 audio frames missing at 00:38:41.420
Last fileset:
1054715288 total bytes written
Video 1: 61561 frames, 00:41:02.440
Audio 1: 102785 frames, 00:41:06.840

Sync estimate at EOF:
MPEG Audio #1 : sync

Video statistics
================
GOP length (min/avg/max):
3 / 13 / 17 [frames]
54225 / 224779 / 307090 [Bytes]
GOP bitrate (min/avg/max):
2307 / 3269 / 5874 [kbps]

++ INFO:
++ 103 GOP(s) with more than 15 frames were found
++ This is not "DVD-compliant"
++ It _may_ cause problems in DVD-authoring or
++ with some DVD players



(Autosaving log to F:\test.txt)

[tezenoy]

ok.
fixed the mpg with projectx now.
scanned it with pvastrumento and the new mpg is indeed fixed with no errors.
so i'm going to encode now and see if it worked

[tezenoy]

cool
i'm super happy now
projectx fixed it all