[VCDImager] MPEG Stills - Finally (not a question, an answer :)

[Leandro Lucarella]

I've been talking with Andrew Stevens (mjpeg developer) and finally mpeg
stills creation is working!!!
The proccess is simple (like it's in this list archive):

For VCD Stills:
==============
jpegtopnm <file.jpg> | pnmscale -xsize=704 -ysize=576 | ppmntsc --pal | \
ppmtoyuv4mpeg | mpeg2enc -f 6 -F 3 -T 120 -o 1_hi-120.m1v

for a PAL hi-res still. For NTSC you have to change -F 3 to -F 4, -ysize to
480 and remove --pal.

jpegtopnm <file.jpg> | pnmscale -xsize=352 -ysize=288 | ppmntsc --pal | \
ppmtoyuv4mpeg | mpeg2enc -f 6 -F 3 -T 42 -o 1_low-42.m1v

for a PAL low-res still. For NTSC you have to change -F 3 to -F 4, -ysize to
240 and remove --pal.

Then to multiplex it, you can multiplex 2 separated streams or a single
stream with the 2 low-res + hi-res stills:

mplex -f 6 -o 1.m1p 1_low-42.m1v 1_hi-120.m1v

For SVCD Stills:
===============

Is just the same. Just change -f 6 to -f 7 and -xsize, -ysize to right
sizes:

SVCD normal resolution stills must be 480x576 (PAL) or 480x480 (NTSC)
SVCD high resolution stills must be 704x576 (PAL) or 704x480 (NTSC)

The only thing I'm missing is the Scan information (user) data... I'm
having some problems with my Philips DVD711 home player with fastforward
and rewind (of course, not with still images), just with SVCDs and I don't
know how to add scan information (user) data to see if it fixes it.

PS: Donwload latest mjpegtools CVS!!! -T is back (really it was allways
there, but it didn't appears in the help).

--
LUCA - Leandro Lucarella
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