[vdr] Sound and picture problems with ITV3

brian Brian_Dorling at t-online.de
Mon Mar 26 19:00:56 CEST 2012


Hi,
Running VDR 1.6 on a FF and Budget cards I have problems with recordings 
made
from the channel ITV3.
The video itself starts OK, but gets very jerky after a while. 
Restarting playback
makes it better for a while. Sound gets more out of sync with the 
picture, its also
better after restarting playback. I tried replaying on VDR 1.7 and the 
problem was the same.

I tried demuxing the recording with ProjectX, this was the output:


<<< session infos >>>

Monday, March 26, 2012  4:32:41 PM CEST
ProjectX 0.90.4.00 (30.03.2006)

-> working with collection 0

-> save normal log file
-> write all video data
-> write all other data
-> patch c.d.flagged infos of pictures
-> add sequence end code
-> set resolution in SDE
-> PVA: strictly specs. for audio streams
-> VOB: determine diff. Cell timelines
-> TS: ignore scrambled packets
-> TS: enhanced search for open packets
-> TS: join file segments (of Dreambox®)
-> TS: generate PMT stream dependent
-> get only enclosed PES/TS packets
-> concatenate different recordings
-> ensure 1st PES-packet start with video
-> generate PCR/SCR from PTS

-> write output files to: '/home/brian/VDR-debug'

-> Input File 0:  
'/media/public/video/VDR/2012-03-24.23.56.50.50.rec/001.vdr' (1,953,444 
bytes)
-> Filetype is PES (incl. MPEG Video)
-> demux
-> found PES-ID 0xE0 (MPEG Video) @ 0
-> found PES-ID 0xC1 (MPEG Audio) @ 2048
-> found PES-ID 0xC0 (MPEG Audio) @ 6537
-> video basics: 704*576 @ 25fps @ 0.7031 (16:9) @ 15000000bps, 
vbvBuffer 112
-> starting export of video data @ GOP# 0
!> dropping useless B-Frames @ GOP# 0 / new Timecode 00:00:00.000
-> actual written vframes: 145
switch to file: 
/media/public/video/VDR/2012-03-24.23.56.50.50.rec/002.vdr 
(2,097,184,848 bytes) @ 1953444
!> dropping GOP# 9 @ orig.PTS 08:50:48.464 (2866361773), errorcode: 24
!> Pics exp/cnt 3/1, inGOP PTS diff. 0ms, new Timecode 00:00:05.800
!> ID 0xC0 (sub 0x0) packet# 252, big PTS difference: this 2866437692, 
prev. 2866321052
!> ID 0xC1 (sub 0x0) packet# 253, big PTS difference: this 2866450652, 
prev. 2866321052
!> PTS difference of 108000 (00:00:01.200) to last exported GOP detected 
(broken_link corrected)
!> dropping useless B-Frames @ GOP# 10 / new Timecode 00:00:05.800
-> found PES-ID 0xBD (private stream 1) (SubID 0x20) @ 2554745
-> found PES-ID 0xBD (private stream 1) @ 4396859
GOP# 9947, new format in next leading sequenceheader detected: 
(01:45:12.760)
-> video basics: 704*576 @ 25fps @ 0.6735 (4:3) @ 15000000bps, vbvBuffer 112

-> Video: fr/ ct/ 1p/ cg/ og/ dg -> 174194/ 2/ 1/ 10896/ 0/ 1
-> Video length: 174194 frames @ 01:56:07.760
-> GOP summary: min. 6, max. 40 fields; contains interlaced frames
-> avg. nom. bitrate 2067611bps (min/max: 261600/8854800)
-> set first sequenceheader bitrate to 8854800bps
---> new File: /home/brian/VDR-debug/001.m2v

--> MPEG Audio (0xC1)
-> check CRC of AC-3 / MPEG-Audio L1,2
-> delete CRC in MPEG-Audio Layer1,2
-> add frames
Audio PTS: first packet 08:50:42.107, last packet 10:46:51.851
Video PTS: start 1.GOP 08:50:42.664, end last GOP 10:46:51.704
-> adjusting audio at video-timeline
-> src_audio: MPEG-1, Layer2, 48000Hz, stereo, 128kbps, noCRC @ 00:00:00.000
!> 14 frame(s) (336ms) inserted @ 00:00:05.472
audio frames: wri/pre/skip/ins/add 290323/0/0/14/0 @ 01:56:07.752 done...
---> new File: '/home/brian/VDR-debug/001.mp2'

--> MPEG Audio (0xC0)
-> check CRC of AC-3 / MPEG-Audio L1,2
-> delete CRC in MPEG-Audio Layer1,2
-> add frames
Audio PTS: first packet 08:50:42.107, last packet 10:46:51.851
Video PTS: start 1.GOP 08:50:42.664, end last GOP 10:46:51.704
-> adjusting audio at video-timeline
-> src_audio: MPEG-1, Layer2, 48000Hz, stereo, 192kbps, noCRC @ 00:00:00.000
!> 16 frame(s) (384ms) inserted @ 00:00:05.424
audio frames: wri/pre/skip/ins/add 290323/0/0/16/0 @ 01:56:07.752 done...
---> new File: '/home/brian/VDR-debug/001[1].mp2'

--> Subpicture (SubID 0x20)
-> selected DVB subpicture color model: (0) 4 colors ; fixed to page id:

-> export format: sup
-> temp. file: 001.sp (995605 bytes)
Subpicture PTS: first packet 08:50:52.525, last packet 10:46:52.627
Video PTS: start 1.GOP 08:50:42.664, end last GOP 10:46:51.704
-> adjusting subpicture at video-timeline
!> suppic unknown cmd: 144

The last line is repeated 500 times, then I get:

stopped...

!> an error has occured..  (please inform the authors at 
'forum.dvbtechnics.info')
java.lang.NullPointerException


Is there any way I can analyse this further? I dont see any errrors with 
femon on ITV3.

Cheers Brian




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