[FFmpeg-user] how to include V4L2_PIX_FMT_H264

[Carl Eugen Hoyos]

Soho Soho123 <soho123.2012 <at> gmail.com> writes:

> #ifdef V4L2_PIX_FMT_H264
>     { AV_PIX_FMT_NONE,    AV_CODEC_ID_H264,     V4L2_PIX_FMT_H264    },
> #endif
> 
> But I donot know how to enable "V4L2_PIX_FMT_H264"?

Either update your kernel headers or add the following 
line to /usr/include/linux/videodev2.h:
#define V4L2_PIX_FMT_H264     v4l2_fourcc('H', '2', '6', '4')

Carl Eugen