On Mon, 12 Jan 2004, James Finnall wrote:
> Thank you for all your help Steven, have CVS version built
> and installed now.
Hurrah!
> Built and installed the SDL, after I googled to find out what it is.
AH, so my (strong) suspicion that the sdl.m4 file was the root
cause of the problems turned out to be a good guess. The SDL
should be optional (but if you want to run yuvplay I think the SDL
becomes required - so it is just as well that you have it installed
now).
> Still had the quote warnings though from the other packages but it
> didn't stop it.
Those I think are automake-1.8 being more verbose/picky - I've never
seen those before with 1.7.9 or earlier.
> dvdauthor. Perhaps you can clarify if what I am doing is correct before
> I post to the dvdauthor list.
> I created 10 photo scans and saved them as jpeg files and resized etc.
> Used jpeg2yuv to create the video stream and piped to mpeg2enc. I used
> -f 8 for the format code code on the output. Projects for me would be
> NTSC so gave proper arguments for that. Each of the streams should
> be 6 seconds in length, cat them together for a total of 60 seconds.
>
> Copied the 60 second clip into a second file and cat'd the copy into the
> output file 29 times, for a total of 30 minutes of video. Then used the same
I do not believe that 'cat'ing mpeg files together is the correct thing
to do. Better method would be to replicate the source frames and
feed a large stream of input into mpeg2enc.
Instead of creating 6 second clips and replicating 10 times it may
be necessary to create a single 60 second movie.
> Created an xml file for just a simple DVD, no menus or anything. Tried to
> use dvdauthor with the -x project.xml file and it keeps reporting:
>
> dvdauthor: relocation error: dvdauthor: undefined symbol: xmlNewTextReaderFilename
That looks like a libxml2 version problem - I do not know what
the minimum version of libxml2 is required by dvdauthor but I suspect
a newer version of libxml2 that contains xmlNewTextReaderFilename()
is needed.
> So I changed to;
> dvdauthor -o test -f dvd/video.mpg
>
> It creates the DVD structure dir in test and the a zero byte VOB file.
> Then it keeps reporting the same message over and over never ending.
>
> WARN: System header found, but PCI/DSI information is not where expected
> (make sure your system header is 18 bytes!)
> WARN: Skipping sector, waiting for first VOBU...
> WARN: Skipping sector, waiting for first VOBU...
> WARN: Skipping sector, waiting for first VOBU...
That's the type of error I think comes from cat'ing mpeg files
together.
> the program is waiting for. At this point I am wondering if the problem is
> in using mp3 files that are 44 khz. I read somewhere that 48 khz is required
> for DVD's. But since mplex accepted the files, would it have resampled as
Quite true - the audio needs to be 48000 for DVDs. While there are
several video sizes that can be used the audio has to be at 48000.
I don't think that's the the problem in this case though.
> If this is a dvdauthor type of problem and everything is OK with mjepgtools,
> then I will post there.
At this point it looks like a dvdauthor issue. I'm not sure how
to create a slideshow with dvdauthor - but if it's possible then
dvdauthor probably has rules/guidelines on how to do it. Perhaps
creating mpeg still images and crafting some xml to say how long
to display each image, etc.
Looks as if the mjpegtools-cvs configuration battle has ended in
victory though - and thats good!
Cheers,
Steven Schultz
I thought involved
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