[M4IF Technotes] ´ð¸´: [M4IF Technotes] solution yuv2avi ?

[lmwang]

You should learn from the avilib API first, input_yuv is buffer which
store YUV data and the three parameter is the buffer
length.(WIDTH*HEIGHT*3/2)
So you had to do like below, only pieces:(YUV,4CIF format,4:2:0)
FILE*  fpYUV;
Char input_yuv[704*576*3/2]; // width*height*3/2
FpYUV = fopen("test.yuv","rb");
Do {
fread(input_yuv,1,704*576*3/2,fpYUV);
AVI_write_frame(pAviHandle,input_yuv,704*576*3/2);
}
fclose(fpYUV);
Best Regards,
Limin
-----????-----
???: technotes-admin   lists.m4if.org
[mailto:technotes-admin   lists.m4if.org] ?? anna
????: 2003?4?10? 2:19
???: technotes   lists.m4if.org
??: [M4IF Technotes] solution yuv2avi ?
hi
i make this programme that is best than the other 
#include <string.h>
#include "avilib.h"
> 
> void main(int argc,char argv[])
> { 	
	char input_yuv[100]; 
        avi_t*  pAviHandle;
>  
>  	char VideoFmtYV12[4] = 
>  	{
>  		'Y','V','1','2'
>  	};
>  
> pAviHandle = AVI_open_output_file("anna.avi");
>  	
>       if(! pAviHandle)
>  	{
>  		printf("avi file open failed \n");
>  		return -1;
>  	}
>  AVI_set_video(pAviHandle,352,288,25,VideoFmtYV12);
>   strcpy(input_yuv,argv[1]);
> 
	do {
> 	    AVI_write_frame(pAviHandle,input_yuv,8);
>  	} while(1)
>  
>  	// close open file
>  	AVI_close(pAviHandle);
> }
> 

now i have the name of my input file in "input_yuv"
the problem is in the function AVI_write_frame the
compilator said that it 'is a few argument for this
function. why i dont know ?
the second question i must open the  input file with
fopen or not before the function AVI_write_frame ?
thinks 
anna :)
 Hello  
> 
> think you for the answer , i've installed avilib and
> i
> create file .c. In your source i dont understand
> where
> i place the name for my file yuv. for example i have
> "akiyo.yuv" input file et and i would to have in the
> output "anna.avi":) . i give you an example  :
> 
> #include "avilib.h"
> 
> void main()
> { 	
>         avi_t*  pAviHandle;
>  
>  	char VideoFmtYV12[4] = 
>  	{
>  		'Y','V','1','2'
>  	};
>  
> pAviHandle = AVI_open_output_file("anna.avi");
>  	
>       if(! pAviHandle)
>  	{
>  		printf("avi file open failed \n");
>  		return -1;
>  	}
>  AVI_set_video(pAviHandle,352,288,25,VideoFmtYV12);
>  
> 	do {
> 	    AVI_write_frame(pAviHandle,akiyo.yuv);
>  	} while(1)
>  
>  	// close open file
>  	AVI_close(pAviHandle);
> }
> 
> I dont understand where i declared the path of my
> input and output file . 
> 
> If it is possible give me an complete source for
> this
> programme that work. and why i will compile it.
> 
> think you for help :)
> anna 
> 
>  
>  
> 
> 
> 
> 
>
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