[MEncoder-users] DVD compliant MPEG2 encoding

[Giacomo Comes]

On Mon, Sep 12, 2005 at 11:17:20PM +0300, Lauri Myllari wrote:
> On Mon, Sep 12, 2005 at 03:50:48PM -0400, Giacomo Comes wrote:
> > With dev-CVS-050906 using this command line:
> > 
> > mencoder kingdom_of_heaven_m720p.mov -o video_me256_0bf.mpg  -ofps 24000/1001 -ovc lavc -of mpeg -mpegopts format=dvd:vaspect=16/9:telecine -vf expand=1280:720,scale=720:480 -lavcopts vcodec=mpeg2video:keyint=15:vbitrate=1800:vrc_buf_size=1835:vrc_maxrate=9000:aspect=16/9:vmax_b_frames=0 -oac lavc -lavcopts acodec=ac3:abitrate=192
> > 
> > I don't have any error at all.
> 
> I got one "1 duplicate frame(s)!" with and without harddup, but that
> shouldn't hurt?
> 
> However, can you dvdauthor the resulting stream without errors? My
> dvdauthor complains:

I have already reported two problems with the current mpeg muxer
(http://mplayerhq.hu/pipermail/mplayer-users/2005-September/055372.html).

Looks like you are facing the first one
(the second one cannot be solved remultiplexing the streams).

Giacomo

> % dvdauthor -o image video_me256_0bf.mpg 
> DVDAuthor::dvdauthor, version 0.6.11.
> Build options: gnugetopt magick iconv freetype fribidi
> Send bugs to <dvdauthor-users at lists.sourceforge.net>
> 
> INFO: dvdauthor creating VTS
> STAT: Picking VTS 01
> 
> STAT: Processing video_me256_0bf.mpg...
> WARN: Video PTS does not line up on a multiple of a field.
> 
> INFO: Video pts = 0.200 .. 80.551
> INFO: Audio[0] pts = 0.200 .. 160.808
> STAT: VOBU 344 at 36MB, 1 PGCS
> INFO: Generating VTS with the following video attributes:
> INFO: MPEG version: mpeg2
> INFO: TV standard: ntsc
> INFO: Aspect ratio: 16:9
> INFO: Resolution: 720x480
> INFO: Audio ch 0 format: ac3/2ch, 48khz drc
> 
> STAT: fixing VOBU at 30MB (289/344, 83%)
> WARN: audio sector out of range: -8225 (vobu #298, pts 66.295)
> 
> WARN: audio sector out of range: -8278 (vobu #299, pts 66.603)
> 
> WARN: audio sector out of range: -8311 (vobu #300, pts 66.920)
> 
> WARN: audio sector out of range: -8388 (vobu #301, pts 67.229)
> 
> ...
> 
> Same thing with harddup. Audio works until the playback freezes. Looks
> pretty much the same as previous tries without audio.
> 
> If I extract audio and video from video_me256_0bf.mpg with tcextract,
> multiplex with mplex and then dvdauthor - no problems. Playback on
> standalone works too.
> 
> --rez