a movie analyzer?

[Arska]

Is there some software for XViD encodes that analyzes the movie and displays all kinds of information based on DRFs, like DRFAnalyzer does for divx3?

[Marc FD]

I would love to code this, but i lack of knowledge on vfw and MPEG-4 bitstreams. :(

moreover, XviD devellopement has stopped, so i won't write a line for XviD untils things get better. :(

[-h]

I was planning on coding:

- a program to read an xvid movie with buggy interlacing and output a "correct" version (easy)
- a program to convert msmpeg4 bitstreams to standard mpeg4 (a tad harder)

I guess if/when I start work on these, I'll roll them all together into something that can correct buggy interlacing, convert msmpeg4 to mpeg4, replace very small B_VOPs with N_VOPs, and the whole time output statistics like quantizers, motion, frame sizes, etc.

We'll just have to wait and see.

-h

[Marc FD]

sounds great !

if i can help you to do it faster, say it.

i like too feel usefull (even if i'm not)

[SirDavidGuy]

- a program to read an xvid movie with buggy interlacing and output a "correct" version (easy)

I haven't got a copy of the specs or the source right here, but wouldn't it be easier to change it in the code?

- a program to convert msmpeg4 bitstreams to standard mpeg4 (a tad harder

Do you know the format that DivX keeps the video in?

Or are you planning to use the DirectShow filter, and send the un-decompressed code to XviD's bitstream creator?

[-h]

I haven't got a copy of the specs or the source right here, but wouldn't it be easier to change it in the code?

That will be done also - but there's still the issue of all the invalid streams that people have already made. I assume there are people who want their existing captures to be mpeg4-compliant without having to find the original video source again.

Do you know the format that DivX keeps the video in?

Yes - see http://ffmpeg.sf.net . I have to study it a bit further, but I'm quite sure that lossless conversion is possible at the bitstream layer. The only complication I can think of would be DC storage, but that can be worked around as well.

-h

[Bulletproof]

While we're on the issue of interlacing, I was wondering what player actually will handle the interlaced material properly? I tried giving an AVI I made to PowerDVD but it played the material back without bobbing or weaving.