User User name Password  
   
Sunday 3.8.2025 / 18:16
Search AfterDawn Forums:        In English   Suomeksi   På svenska
afterdawn.com > forums > digital video > video to dvd > gop errors and audio sync prob
Show topics
 
Forums
Forums
GOP errors and audio sync prob
  Jump to:
 
Posted Message
blametom
Newbie
_
3. September 2005 @ 13:59 _ Link to this message    Send private message to this user   
I'm having big problems with my audio syncing, I record an MPEG2 from the TV trough my AVerMedia DVB-T USB2.0 then use DVD-lab PRO to author it. The audio is in sync on the original file but seems to loose it after authoring. the sync seems to get worse as you go later in the movie. I scanned one of the original mpeg2 files with PVAStrumento 2 and I got loads of errors (below)

Found 1 video stream.
Found 1 MPEG audio stream.

VIDEO #1
Resolution 544 x 576
Aspect ratio is 16:9
Frame rate 25.00 fps
Nominal bitrate 10000000 bps
First PTS: 00:00:00.280

MPEG AUDIO #1
MPEG1, Layer 2
stereo, sampled at 48.0 kHz.
Bitrate 192 kbps
Each frame contains 24.0 ms audio (576 bytes)
First PTS: 00:00:00.280

***
*** PVAStrumento 2.1.0.15
*** running at 09-03-2005 22:21
***
Pre-Scanning input. Takes some time.
Stream info for
C:\Documents and Settings\-\My Documents\Recorded\DVD\VIDEO_TS\VTS_01_1.VOB

Found 1 video stream.
Found 1 MPEG audio stream.

VIDEO #1
Resolution 544 x 576
Aspect ratio is 16:9
Frame rate 25.00 fps
Nominal bitrate 10000000 bps
First PTS: 00:00:00.280

MPEG AUDIO #1
MPEG1, Layer 2
stereo, sampled at 48.0 kHz.
Bitrate 192 kbps
Each frame contains 24.0 ms audio (576 bytes)
First PTS: 00:00:00.280


==SCANNING==
Input: C:\Documents and Settings\-\My Documents\Recorded\DVD\VIDEO_TS\VTS_01_1.VOB
Closing starting GOP.
Aiming for sync at 00:00:00.360
Cutting audio.
Audio stream 1 now starts at 00:00:00.352
Video stream 1 now starts at 00:00:00.360
ALERT> Temporal structure wrong in GOP at 00:04:42.600. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:04:43.040
Cutting audio.
Audio stream 1 now starts at 00:04:43.048
Video stream 1 now starts at 00:04:43.040
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:04:43.048
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:04:43.040
Audio 1 starts at 00:04:43.048

ALERT> Temporal structure wrong in GOP at 00:04:48.800. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:04:49.240
Cutting audio.
Audio stream 1 now starts at 00:04:49.240
Video stream 1 now starts at 00:04:49.240
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:04:49.240
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:04:49.240
Audio 1 starts at 00:04:49.240

ALERT> Temporal structure wrong in GOP at 00:08:57.880. Dropping.
[found tref duplicates]
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:08:58.480
Cutting audio.
Audio stream 1 now starts at 00:08:58.480
Video stream 1 now starts at 00:08:58.480
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:08:58.480
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:08:58.480
Audio 1 starts at 00:08:58.480

ALERT> Temporal structure wrong in GOP at 00:10:51.760. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:10:52.040
Cutting audio.
Audio stream 1 now starts at 00:10:52.048
Video stream 1 now starts at 00:10:52.040
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:10:52.048
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:10:52.040
Audio 1 starts at 00:10:52.048

ALERT> Temporal structure wrong in GOP at 00:11:02.120. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:11:02.520
Cutting audio.
Audio stream 1 now starts at 00:11:02.512
Video stream 1 now starts at 00:11:02.520
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:11:02.520
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:11:02.520
Audio 1 starts at 00:11:02.512

ALERT> Temporal structure wrong in GOP at 00:16:04.920. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:16:05.320
Cutting audio.
Audio stream 1 now starts at 00:16:05.320
Video stream 1 now starts at 00:16:05.320
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:16:05.320
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:16:05.320
Audio 1 starts at 00:16:05.320

ALERT> Temporal structure wrong in GOP at 00:19:48.040. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:19:48.480
Cutting audio.
Audio stream 1 now starts at 00:19:48.472
Video stream 1 now starts at 00:19:48.480
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:19:48.480
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:19:48.480
Audio 1 starts at 00:19:48.472

ALERT> Temporal structure wrong in GOP at 00:35:04.800. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:35:05.200
Cutting audio.
Audio stream 1 now starts at 00:35:05.200
Video stream 1 now starts at 00:35:05.200
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:35:05.200
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:35:05.200
Audio 1 starts at 00:35:05.200

ALERT> Temporal structure wrong in GOP at 00:39:09.520. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:39:09.920
Cutting audio.
Audio stream 1 now starts at 00:39:09.928
Video stream 1 now starts at 00:39:09.920
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:39:09.928
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:39:09.920
Audio 1 starts at 00:39:09.928

ALERT> Temporal structure wrong in GOP at 00:39:20.480. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:39:20.760
Cutting audio.
Audio stream 1 now starts at 00:39:20.752
Video stream 1 now starts at 00:39:20.760
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:39:20.760
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:39:20.760
Audio 1 starts at 00:39:20.752

ALERT> Temporal structure wrong in GOP at 00:39:43.800. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:39:44.160
Cutting audio.
Audio stream 1 now starts at 00:39:44.152
Video stream 1 now starts at 00:39:44.160
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:39:44.160
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:39:44.160
Audio 1 starts at 00:39:44.152

ALERT> Temporal structure wrong in GOP at 00:42:58.080. Dropping.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:42:58.360
Cutting audio.
Audio stream 1 now starts at 00:42:58.360
Video stream 1 now starts at 00:42:58.360
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:42:58.360
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:42:58.360
Audio 1 starts at 00:42:58.360

[ 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> Temporal structure wrong in GOP at 00:43:10.840. Dropping.
[found tref duplicates]
ALERT> -1 video frames missing at 00:43:10.840.
ALERT> Dropping GOP for sync.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:43:11.480
Cutting audio.
Audio stream 1 now starts at 00:43:11.488
Video stream 1 now starts at 00:43:11.480
ALERT> -1 video frames missing at 00:43:11.480.
ALERT> Dropping GOP for sync.
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:43:12.040
Cutting audio.
Audio stream 1 now starts at 00:43:12.040
Video stream 1 now starts at 00:43:12.040
ALERT> Temporal structure wrong in GOP at 00:46:55.960. Dropping.
[found tref duplicates]
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:46:56.720
Cutting audio.
Audio stream 1 now starts at 00:46:56.728
Video stream 1 now starts at 00:46:56.720
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:46:56.728
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:46:56.720
Audio 1 starts at 00:46:56.728

ALERT> Temporal structure wrong in GOP at 00:47:03.440. Dropping.
[found tref duplicates]
Re-syncing.
Closing starting GOP.
Aiming for sync at 00:47:04.320
Cutting audio.
Audio stream 1 now starts at 00:47:04.312
Video stream 1 now starts at 00:47:04.320
ALERT> PTS jump in video
Closing starting GOP.
Aiming for sync at 00:47:04.320
Streamstart seems to be in (reasonable) sync:
Video 1 starts at 00:47:04.320
Audio 1 starts at 00:47:04.312

Adjusting audio to frames in last GOP at EOF
Last fileset:
1030130433 total bytes written
Video 1: 92842 frames, 01:01:53.680
Audio 1: 154742 frames, 01:01:53.808

Sync estimate at EOF:
MPEG Audio #1 : sync

Video statistics
================
GOP length (min/avg/max):
6 / 11 / 12 [frames]
42588 / 121480 / 251980 [Bytes]
GOP bitrate (min/avg/max):
709 / 2025 / 4199 [kbps]

++ INFO:
++ 3 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

What do I do? its driving me mad!
Minion
AfterDawn Addict
_
3. September 2005 @ 15:07 _ Link to this message    Send private message to this user   
Well if you Run your Files through PVAStrumento it should Fix those errors and resync it so the DVD Plays Properly and in Sync ....

Digital TV and Satalite Streams can Be Difficult to make DVD"s from because they have an Inconsistant Time Code because of Signal Drop out when Captureing...PVAStrumento is supposed to fix this but even then you can still have Problems....

To Fix the GOP you can Try useing a Feature in a Mpeg editor called "Womble Mpeg2VCR" which is called the "GOP Fixer" which will fix any Non-DVD Compliant GOP"s in the Video stream....

Well Good Luck.......

P-4 2.6ghz (Overclocked to 3.2ghz)
Abit IS7
1gb Dual Chanell DDR 400mhz
Zalman CNPS7000-CU Cooler(Modded with 50cfm Fan)
XFX Gforce 6600GT 128mb GDDR3 (500/1000)
Pinnacle DV500 ADVC Editing Card
RaidMax Scorpio ATX Case + 5 Led
afterdawn.com > forums > digital video > video to dvd > gop errors and audio sync prob
 

Digital video: AfterDawn.com | AfterDawn Forums
Music: MP3Lizard.com
Gaming: Blasteroids.com | Blasteroids Forums | Compare game prices
Software: Software downloads
Blogs: User profile pages
RSS feeds: AfterDawn.com News | Software updates | AfterDawn Forums
International: AfterDawn in Finnish | AfterDawn in Swedish | AfterDawn in Norwegian | download.fi
Navigate: Search | Site map
About us: About AfterDawn Ltd | Advertise on our sites | Rules, Restrictions, Legal disclaimer & Privacy policy
Contact us: Send feedback | Contact our media sales team
 
  © 1999-2025 by AfterDawn Ltd.

  IDG TechNetwork