Ts recording- demuxing issues

daWsOn_s · Postby **daWsOn_s** » Fri Nov 24, 2006 4:44 am

Hello,
I record in TS (renderless mode on). From Monday I'm recording same program on same channel until 6GB (about 2:30 hours) and when I demux with projectx i have problems of synchronization like that:

VIDEO
!> dropping useless B-Frames @ GOP# 0 / new Timecode 00:00:00.000
!> PID 0x200 -> packet 2798064 @ pos. 526035844 out of sequence (1/6) (shifting..) (~00:11:58.480)
!> PID 0x28A -> packet 2798366 @ pos. 526092620 out of sequence (8/7) (shifting..) (~00:11:58.960)
!> PID 0x28B -> packet 2798424 @ pos. 526103524 out of sequence (15/5) (shifting..) (~00:11:58.960)
!> ID 0xC0 (sub 0x0) packet# 2941, big PTS difference: this 7326134089, prev. 4306412633
!> ID 0xC0 (sub 0x0) packet# 2941, big PTS difference: this 7326135029, prev. 4306411719
!> PID 0x28B -> packet 2800760 @ pos. 526542692 out of sequence (6/1) (shifting..) (~00:11:59.320)
!> PID 0x28A -> packet 2800887 @ pos. 526566568 out of sequence (5/1) (shifting..) (~00:11:59.320)
!> PTS difference of 3019697792 (09:19:12.197) to last exported GOP detected

AUDIO
!> 1 PTSs discarded in stream
Audio PTS: first packet 13:05:29.691, last packet 00:23:05.180
Video PTS: start 1.GOP 13:05:29.973, end last GOP 00:23:05.011
-> adjusting audio at video-timeline
!> missing syncword @ 5872, @ 00:00:00.000
!> found syncword @ 5984
-> src_audio: MPEG-1, Layer2, 48000Hz, stereo, 192kbps, CRC @ 00:00:00.000
!> missing syncword @ 17267553, @ 00:11:59.184
!> found syncword @ 17268176
!> missing syncword @ 17269329, @ 00:11:59.232
!> PTS without a frame (17269552/17269553)
!> found syncword @ 17269584

It makes, at the end, video and audio freeze to maintain synchronization and it's not good. Do you thing is a program problem or dimension file?

daWsOn_s · Postby **daWsOn_s** » Fri Nov 24, 2006 5:22 am

I just tried with 900MB of ts, the problems happend anyway

daWsOn_s · Postby **daWsOn_s** » Fri Nov 24, 2006 5:28 am

I guess the problem is definitely of DD cause is the only one that use more cpu during record and 30% in renderless mode.

FredB · Postby **FredB** » Fri Nov 24, 2006 7:26 am

In most cases, synchro issues don't came from the software in use (DD, MyTheatre, DVBViewer, and so on...) but from TS signal itself.

genpix · Postby **genpix** » Fri Nov 24, 2006 11:02 am

2 daWsOn_s:
try VideoReDo

daWsOn_s · Postby **daWsOn_s** » Fri Nov 24, 2006 2:13 pm

In most cases, synchro issues don't came from the software in use (DD, MyTheatre, DVBViewer, and so on...) but from TS signal itself.

So are you saying that it's trasmission problem, of the broadcaster? The signal is 98% quality and power

FredB · Postby **FredB** » Fri Nov 24, 2006 3:31 pm

So are you saying that it's trasmission problem, of the broadcaster? The signal is 98% quality and power

The fact that quality and level of signal received from the TP is at 100% does not mean that the quality of initial signal received by the TP is at 100%.

daWsOn_s · Postby **daWsOn_s** » Sat Nov 25, 2006 4:10 pm

So are you saying that it's trasmission problem, of the broadcaster? The signal is 98% quality and power
The fact that quality and level of signal received from the TP is at 100% does not mean that the quality of initial signal received by the TP is at 100%.

I agree, but why happends only with DD?

Postby **rel** » Sun Nov 26, 2006 12:18 am

I agree, but why happends only with DD?

I think you just need to check if it happens only with the same channel.

DD just records the stream as is when TS record format is selected. (in other words, no post processing is done after stream is received)

Ts recording- demuxing issues

Who is online