[MPlayer-users] SVCD from TV card

[Torsten Römer]

Hello

I am trying to encode to SVCD from the TV card. It "almost" seems to 
work, MPlayer and Xine can play the resulting SVCD (while MPlayer hangs 
a bit) but my DVD Player cannot play it at all (just hangs)

I encode like this:

mencoder -tv driver=v4l:width=480:height=576 tv://
          -of mpeg
          -ovc lavc
          -oac lavc
          -lavcopts 
vcodec=mpeg2video:vbitrate=1500:aspect=4/3:acodec=mp2
          -o test.mpg

Then I use vcdimager to create the SVCD. Something is strange here, it 
warns me:

++ WARN: mpeg stream will be padded on the fly -- hope that's ok for you!
++ WARN: autopadding requires to insert additional 232944 zero bytes 
into MPEG stream (due to 844 unaligned packets of 845 total)
++ WARN: this VCD type should not contain MPEG1 streams

Regarding the packet alignment I have no idea how to solve it. I tried 
many options, like vrc_buf_size=917 as recommended in the manpage for 
SVCD, but I cannot get rid of the warning.

I am also surprised about the warning that it's an MPEG1 stream, while 
mplayer says:

VIDEO:  MPEG2  480x576  (aspect 2)  25,000 fps    0,0 kbps ( 0,0 kbyte/s)

and mpgtx tells me this:

test.mpg
   Mpeg 2 Program Stream File [Video/Audio]
   Muxrate : 2.11 Mbps
   Estimated Duration: 12.23s
   Aspect ratio 4/3 (TV)
   Not interlaced, chroma format: 4:2:0
   Size [480 x 576]     25.00 fps    104.86 Mbps
   Audio : Mpeg 1 layer 2
   224 kbps  44100 Hz
   Stereo,  No emphasis

I am using MPlayer 1.0pre3-3.2 and tried with both ffmpeg 0.4.8 and CVS.

I also played a bit with ffmpeg's -target option but with no success.

Does anybody have an idea why my DVD Player (and also MPlayer) don't 
like the resulting SVCD?

I created some SVCD's with transcode and mpeg2enc which works nice, but 
it's way too slow to encode from the TV card...

Thanks in advance
Torsten