ffmpeg 安装常见问题的解决

今天在公司编译ffmpeg，结果./configure 正常，但是在make的时候出现了下面的错误，在网上寻找，居然找到了解决办法，特转过来作为自己的总结，方便日后查看

# make
gcc -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I. -I"/home/yujingtao/soft/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -fasm -std=c99 -fomit-frame-pointer -pthread -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wcast-qual -Wwrite-strings -O3 -fno-math-errno       -c -o libavdevice/v4l.o libavdevice/v4l.c
In file included from libavdevice/v4l.c:32:
/usr/include/linux/videodev.h:55: error: syntax error before "ulong"
/usr/include/linux/videodev.h:71: error: syntax error before '}' token
libavdevice/v4l.c: In function `grab_read_header':
libavdevice/v4l.c:77: error: storage size of 'tuner' isn't known
libavdevice/v4l.c:141: error: invalid application of `sizeof' to incomplete type `video_tuner'
libavdevice/v4l.c:148: error: invalid application of `sizeof' to incomplete type `video_tuner'
libavdevice/v4l.c:77: warning: unused variable `tuner'
make: *** [libavdevice/v4l.o] 错误 1

vi /usr/include/linux/videodev.h

查找rangelow, rangehigh;      /* Tuner range */这一行
把  ulong rangelow, rangehigh;      /* Tuner range */
改为：
     unsigned long rangelow, rangehigh;      /* Tuner range */

参考：