[Mplayer-users] Divx4Linux confusion

[Christoph H. Lampert]

Am Samstag, 21. Juli 2001 16:05 schrieben Sie:
> Hi,
>
> > Hi A'rpi and Sparky,
> >
> > I'm utterly confused.
>
> read it again. there is a note, saying that if pointers are NULL, then
> they will be allocated by the codec lib.

I'm even more confused... where is that note? My API is  

    25399  07-18-01 15:00   DivX 4.0 (Beta) API Documentation.txt     

dated 

>Version 4.0 (Beta) (Document Revision 1.0)
>Released on 2001-07-18

and I really can't find anything like that (although it seems to work, now 
the decoder crashes later than before). 
 
The paragraph in API reads: 

>6.1. Initialization
>Before initializing decore(), the application should allocate the data 
>structures. To do this, the application will call decore() setting 
>DEC_OPT_MEMORY_REQS as dec_opt. When DEC_OPT_MEMORY_REQS is set, the calling 
>thread needs to provide the input parameter (param1) pointing to a DEC_PARAM 
>data structure and the output parameter (param2) pointing to a DEC_MEM_REQS 
>structure. The two data structures mentioned are defined below.
>[...]
>The application must provide a meaningful param1 containing the correct 
>dimension of the frames. Decore will give back the application information 
>on the buffers. Data structure size is needed throughout param2.
>At this point the application should allocate the required memory and then 
>initialize decore. The memory that decore will use is described in the 
>DEC_BUFFERS structure, defined as:
>[...]
>The decore initialization process starts when DEC_OPT_INIT is set at 
>dec_opt. The decore will initialize a new instance associated with handle.
>When DEC_OPT_INIT is set, the calling thread needs to provide param1 
>pointers to a valid DEC_PARAM data structure. In this case, param2 has no 
>meaning and should be set to NULL.
>
>Decore returns DEC_OK if the process is correct. Decore returns DEC_MEMORY 
>if there is memory allocation error.

The example at the end uses MEMORY_REQS as well. 
There is also the already known "isKeyFrame" instead of "is_key_frame" error 
in this document. Maybe the ZIP I downloaded contains an outdated version? 

gruel

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