请教编译omap的一个例子问题

[听海拉拉]

先给出问题：

lenovo@ubuntu:~/test$ make
arm-none-linux-gnueabi-gcc -o luvc_test  -L/home/lenovo/work/jpeg/lib luvc_test.c -ljpeg
/home/lenovo/work/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnueabi/4.2.1/../../../../arm-none-linux-gnueabi/bin/ld: skipping incompatible /home/lenovo/work/jpeg/lib/libjpeg.so when searching for -ljpeg
/home/lenovo/work/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnueabi/4.2.1/../../../../arm-none-linux-gnueabi/bin/ld: skipping incompatible /home/lenovo/work/jpeg/lib/libjpeg.a when searching for -ljpeg
/home/lenovo/work/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnueabi/4.2.1/../../../../arm-none-linux-gnueabi/bin/ld: cannot find -ljpeg
collect2: ld returned 1 exit status
make: *** [luvc_test] Error 1

makefile如下：

CROSS=arm-none-linux-gnueabi-

all: luvc_test

luvc_test: luvc_test.c
	$(CROSS)gcc -o luvc_test  -L/home/lenovo/work/jpeg/lib luvc_test.c -ljpeg

clean:
	@rm -vf luvc_test *.o *~

jpeg库的问题，我已经装了，且目录也设置了，怎么找不到呢

[听海拉拉]

[Quote=引用 3 楼 的回复:]
cannot find -ljpeg
找不到这个库了，链接不上，这库有吗？
[/Quote]
这个库，我已经编译好了的。在这里-L/home/lenovo/work/jpeg/lib

[昵称很不好取]

cannot find -ljpeg
找不到这个库了，链接不上，这库有吗？

[听海拉拉]

#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdint.h>
#include <stdlib.h>
#include <errno.h>
#include <getopt.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/select.h>
#include <sys/time.h>
#include "jpeglib.h"
#include <linux/fb.h>

#include <linux/videodev.h>

#define FB_FILE "/dev/fb0"

typedef struct  _fb_v4l
{
        int fbfd ;                                                                     
	char *fbp;
        struct fb_var_screeninfo vinfo;                                                 
        struct fb_fix_screeninfo finfo;                                              
}fb_v41;

void jpeg_to_framebuffer(fb_v41 *vd, int width, int height, int xoffset, int yoffset, JSAMPARRAY buffer)
{
        int x, y, location;
        unsigned short *loca_ptr, data;
        unsigned char Red, Green, Blue;

	for(y = 0; y < height; y++){

		location = xoffset * 2 + (y + yoffset) * vd->finfo.line_length;
		loca_ptr = (unsigned short *) (vd->fbp + location);

        	for(x = 0; x < width; x++){
                	Red = buffer[y][x * 3];
	                Green = buffer[y][x * 3 + 1];
        	        Blue = buffer[y][x * 3 + 2];
                	data = ((Red >> 3) << 11) + ((Green >> 2) << 5) + (Blue >> 3) << 0;//rgb565
	                *(loca_ptr + x) = data;
        	}
	}
}

void yuv_to_framebuffer(fb_v41 *vd, int width, int height, int xoffset, int yoffset, unsigned short *buffer)
{
        int x, y, location;
        unsigned short *loca_ptr;

        for(y = 0; y < height; y++){

                location = xoffset * 2 + (y + yoffset) * vd->finfo.line_length;
                loca_ptr = (unsigned short *) (vd->fbp + location);

                for(x = 0; x < width; x++){
                        *(loca_ptr + x) = *buffer++;//rgb565
                }
        }
}


static inline void yuv_to_rgb16(unsigned char y,
                                unsigned char u,
                                unsigned char v,
                                unsigned char *rgb)
{
    register int r,g,b;
    int rgb16;

    r = (1192 * (y - 16) + 1634 * (v - 128) ) >> 10;
    g = (1192 * (y - 16) - 833 * (v - 128) - 400 * (u -128) ) >> 10;
    b = (1192 * (y - 16) + 2066 * (u - 128) ) >> 10;

    r = r > 255 ? 255 : r < 0 ? 0 : r;
    g = g > 255 ? 255 : g < 0 ? 0 : g;
    b = b > 255 ? 255 : b < 0 ? 0 : b;

    rgb16 = (int)(((r >> 3)<<11) | ((g >> 2) << 5)| ((b >> 3) << 0));

    *rgb = (unsigned char)(rgb16 & 0xFF);
    rgb++;
    *rgb = (unsigned char)((rgb16 & 0xFF00) >> 8);
}

void convert(unsigned char *buf, unsigned char *rgb, int width, int height)
{
    int x,y,z=0;
    int blocks;

    blocks = (width * height) * 2;

    for (y = 0; y < blocks; y+=4) {
       	unsigned char Y1, Y2, U, V;

       	Y1 = buf[y + 0];
       	U = buf[y + 1];
       	Y2 = buf[y + 2];
       	V = buf[y + 3];

        yuv_to_rgb16(Y1, U, V, &rgb[y]);
        yuv_to_rgb16(Y2, U, V, &rgb[y + 2]);
    }
}

[听海拉拉]

源码太长了，发不了，需要的话，留下邮箱

[xiongmin060102]

hello，能不能把源码发给我，急需要，非常感谢 [e-mail]