[PyQt] Fwd: absolute beginner's question about "was not declared in this scope"

[Sampsa Riikonen]

Hello,

.. ups, silly me.  I forgot to

#include <h264_stream.h>

in the ".sip" file.  Sorry about that.

But that still leaves me with one of the original questions, because, 
now, when compiling I get:

error: invalid conversion from ‘char*’ to ‘uint8_t* {aka unsigned char*}’

Regards,

Sampsa


-------- Forwarded Message --------
Subject: 	absolute beginner's question about "was not declared in this 
scope"
Date: 	Fri, 06 Nov 2015 13:50:43 +0200
From: 	Sampsa Riikonen <sampsa.riikonen at iki.fi>
To: 	pyqt at riverbankcomputing.com



Hello,

An absolute beginners question in wrapping C libraries with SIP:

The library header file ("h264_stream.h") has the following:

-------------------

#ifndef _H264_STREAM_H
#define _H264_STREAM_H        1

#include <stdint.h>
#include <stdio.h>
#include <assert.h>

....
....
....

int find_nal_unit(uint8_t* buf, int size, int* nal_start, int* nal_end);

...
...
...
----------------------

Here is my "h264_stream.sip":

---------------------

%Module h264_stream

%UnitCode
#include <stdint.h>
#include <stdio.h>
#include <assert.h>
%End

// int find_nal_unit(uint8_t* buf, int size, int* nal_start, int* nal_end);

int find_nal_unit(char* buf, int size, int* nal_start, int* nal_end);

// int find_nal_unit(int* buf, int size, int* nal_start, int* nal_end);

-------------------------

.. those commented lines were things I tried, but as I want a byte
buffer, so "char*" makes the most sense, right?

After ..

-------------
sip -c . h264_stream.sip
python configure.py
make
-------------

.. I get:

------------

./siph264_streamcmodule.cpp:37:49: error: ‘find_nal_unit’ was not
declared in this scope
              sipRes = find_nal_unit(a0,a1,&a2,&a3);
                                                  ^
make: *** [siph264_streamcmodule.o] Error 1

-------------

What is going on?

Also, I'd like to use the data type "uint8_t", i.e.

int find_nal_unit(uint8_t* buf, int size, int* nal_start, int* nal_end);

.. but that does not seem to be possible.  Any way to achieve this (or
does it make any difference?) ?

I can see that "stdint" etc. are correctly included in
"siph264_streamcmodule.cpp"


Regards,

Sampsa (a sip newbie)





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