Linux伊甸园论坛 » Linux嵌入式应用 » PXA255 下摄像头采集程序编译的问题

waterlife2001 发表于 2007-9-20 16:48

PXA255 下摄像头采集程序编译的问题

首先要编译jpeg库
看网上说，编译好jpeg库之后，还要编译minigui库
我先用arm-linux-gcc编译这两个库，结果如下：
[root@localhost lib]# cd /usr/local/arm/3.0/arm-linux/lib
[root@localhost lib]# file libminigui-1.6.so.2.0.0
libminigui-1.6.so.2.0.0: ELF 32-bit LSB shared object, ARM, version 1 (ARM), not stripped
[root@localhost lib]# file libjpeg.so.62.0.0
libjpeg.so.62.0.0: ELF 32-bit LSB shared object, ARM, version 1 (ARM), not stripped

vidcat_OK_1.c 是摄像头采集程序
[root@localhost vidcat_ok]# arm-linux-gcc -o v4l vidcat_OK_1.c

/tmp/ccGOV5Fg.o: In function `put_image_jpeg':

/tmp/ccGOV5Fg.o(.text+0x1198): undefined reference to `jpeg_std_error'

/tmp/ccGOV5Fg.o(.text+0x11ac): undefined reference to `jpeg_CreateCompress'

/tmp/ccGOV5Fg.o(.text+0x11f0): undefined reference to `jpeg_set_defaults'

/tmp/ccGOV5Fg.o(.text+0x1200): undefined reference to `jpeg_set_quality'

/tmp/ccGOV5Fg.o(.text+0x1214): undefined reference to `jpeg_stdio_dest'

/tmp/ccGOV5Fg.o(.text+0x1220): undefined reference to `jpeg_start_compress'

/tmp/ccGOV5Fg.o(.text+0x1270): undefined reference to `jpeg_write_scanlines'
/tmp/ccGOV5Fg.o(.text+0x12e8): undefined reference to `jpeg_write_scanlines'
/tmp/ccGOV5Fg.o(.text+0x1390): undefined reference to `jpeg_finish_compress'
/tmp/ccGOV5Fg.o(.text+0x1398): undefined reference to `jpeg_destroy_compress'
collect2: ld returned 1 exit status


各位高人看看到底是什么地方有问题啊？

AIKO_sex 发表于 2007-9-20 20:23

arm-linux-gcc -o v4l vidcat_OK_1.c -ljpeg

waterlife2001 发表于 2007-9-21 08:47

非常感谢AIKO_sex 。问题已解决，谢谢，谢谢。。。。。

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