[MPlayer-dev-eng] [PATCH] Apple Video (rpza) decoder

Togni Roberto rtogni at bresciaonline.it
Sun Feb 10 01:48:40 CET 2002


On 2002.02.09 21:03 Mike Melanson wrote:
> On Sat, 9 Feb 2002, Mike Melanson wrote:
> 
> > happy to apply the patch, but first I do want to see the sample 
> media, so
> > please upload it to the MPlayer FTP in the incoming/ directory.
> We'll likely make it part of our permanent sample archive.
> 
> 	Scratch that; it wasn't too difficult to find some sample
> media. I
> promoted your decoder's status to "working" and committed your work. I
> also put in a request to Gabucino so you'll get your due credit.

Thanks. I'm happy to know it works.

> 
> 	BTW, when you took code from my SMC decoder, were you aware
> that
> the decoder has not officially been blessed as "working" yet?...:) No

Yes. I din't use the decoding portin of your code. I took the block 
handling code (ADVANCE_BLOCK) and part of the pixel write code, because 
prza shares the same 4x4 pixel logic with smc. I also took the chunk 
size code and the BE_* macros to be compatible with non-intel cpu, 
since I can't test it on big-endian machines. I changed the while 
logic, my codec works with length instead of block counter, because I'm 
not sure that a chunk have to encode all blocks (I think you can skip 
last blocks if you don't need to encode them in current frame. Please 
note that is my assumption, i have no evidence that the rpza encoder 
does it).

> matter; your decoder seems to work. But since you now have experience
> reverse engineering algorithms from that weird XAnim code, would you
> be
> able to help me figure out what's wrong with my SMC decoder?
> 
I downloaded the sample file form ftp, will look at it tomorrow.

> 	Thanks...
> --
> 	-Mike Melanson
> 
Ciao,
  Roberto



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