[linux-dvb] Re: VDR files to VOB

[Olaf Beck <olaf_sc@yahoo.com>]

Hello 

There is currently no way to make a valid VOB with any of the dvb tools, vital 
info (PCI/DSI) packets isn't there or are empty (don't remember which one). 

We have a project at SourceForge dealing with DVD Authoring/Creation 
http://sourceforge.net/projects/dvd-create/ and dvd-create.sf.net. 

Anyone with that is interesting programming DVD is most wellcommed to join the 
club :)

Cheers Olaf
 

On Tuesday 13 August 2002 14:19, Peter Maersk-Moller wrote:
> Hi Antonio
>
> Did you find a solution to your problem ?
>
> Antonio wrote
>
> > I tryed to find a procedure to convert a VDR file (PES) to a VOB:
> > 1) demux to audio and video with mplex or PVAStrumento;
> > 2) mux in an ordinary MPEG2(PS) file, recognized bya DVD authoring
> > software, by TMPEGenc or vux directly it into a VOB. In every case I
> > found an A/V sync problem, due to step 1, I coudn't fix: mplex produces a
> > different speed of audio and video; PVAStrumento produces bad sound for
> > the first 1-3 seconds and good audio and sync for the following. Does
> > anybody know a better procedure?
> > I read on linuxdvb FAQ that there is a module parameter in the driver to
> > choose between  recording formats (included PS), but in latest version of
> > the driver there is no trace of this parameter or a function call to set
> > recording format to PS (actually there is no trace of PS format
> > handling). Am I right? If yes, why this feature has been removed?
>
> I'm trying to use either
>
>   $ dvbstream -f 11954 -p H -s 27500 -o  510 520 | pes2ts2 520 510 |ts_ps
> 510 520
>
> or
>
>   $ dvbstream -f 11954 -p H -s 27500 -o -ps 510 520 >test.vob
>
> or pesdump and pes2ts and ts2ps.
>
> In all cases I end up with a MPEG-2 file which the following programs
> has serious problems with (sync problems, crashes etc.)
>
> 	a) FlaskMPEG
> 	b) VirtualDub
> 	c) transcode
> 	e) xmovie (libmpeg3 from Virtual Heroine)
>
> When using dvbstream to directly creating a vob file, xmovie complains as
> shown ---------------------------------------------------------------
> xmovie pmm2_ps.vob
> XMovie (c) 2001 Heroine Virtual
> mpeg3_III_get_side_info: big_values too large!
> mpeg3_III_get_side_info: big_values too large!
> mpeg3audio_new: layer 1 not supported
> mpeg3_III_get_side_info: big_values too large!
> mpeg3audio_III_dequantize_sample: Can't rewind stream 1494 bits!
> mpeg3audio_new: layer 1 not supported
> mpeg3_III_get_side_info: big_values too large!
> Blocktype == 0 and window-switching == 1 not allowed.
> Blocktype == 0 and window-switching == 1 not allowed.
> ----------------------------------------------------------------
>
> This results in a lot of squares in the picture and audio is mostly
> clipping and chipping sounds. FlaskMPEG has the same problems but
> also dies.
>
> Transcode reports this (and dies). Obviously something is seriously wrong
> with timing.
>
>   $  transcode -i pmm2_ps.vob -y mpeg -o pmm.mpg 2>&1
> transcode v0.6.0pre4-20020324 (C) 2001-2002 Thomas Östreich
> [transcode] auto-probing source pmm2_ps.vob (ok)
> [transcode] V: import format    | MPEG    (V=null|A=mp3)
> [transcode] V: AV demux/sync    | (mode=0) disabled
> [transcode] V: import frame     | disabled
> [transcode] V: encoding fps     | 25.000
> [transcode] A: import format    | 0x50    MPEG layer-2 [48000,16,1]  128
> kbps [transcode] A: export format    | 0x50    MPEG layer-2 [48000,16,1] 
> 128 kbps [transcode] A: bytes per frame  | 3840 (3840.000000)
> [transcode] A: adjustment       | 0@1000
> [transcode] A: AV shift         | 10 (A) 0 (V)
> [import_mp3.so] v0.1.1 (10/10/01) (audio) MPEG
> [import_null.so] v0.2.0 (01/19/02) (video) null | (audio) null
> [export_mpeg.so] v1.2.0 (03/23/02) (video) MPEG 1/2 | (audio) MPEG 1 Layer
> II [import_mp3.so] MP3->PCM
> [import_mp3.so] tcextract -a 0 -i pmm2_ps.vob -x mp3 -d 0 | tcdecode -x mp3
> -d 0
>
> INFO: using reference profile (MPEG1)
> INFO: profile type is (PAL)
> INFO: motion-comp. with SSE/MMX acceleration !
> INFO: dct with MMX acceleration (intel)!
> INFO: prediction with SSE-acceleration!
> (decode_mp3.c) channels=1, samplerate=48000 Hz, bitrate=128 kbps, (1152)
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> bitstream problem: resyncing...
> filling buffer ... done
> bitstream problem: resyncing..., 899.28 fps, ( 0| 0| 9)
> bitstream problem: resyncing..., 1523.46 fps, ( 0| 0| 5)
> bitstream problem: resyncing..., 1525.87 fps, ( 2| 0| 8)
> Floating point exception
>
>
> Suggestions are welcome.
>
> --PMM



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