2009/9/23 Jun Nie <niej0...@gmail.com>: > Hi, > I re-send this email for the last one is rejected by system. I am > sorry if you guys received both. > > I am optimizing video playback with overlay with V4L2 driver. The > video content is a sub-region of codec output. Thus a memory copy is > necessary. > Is there plan to support for stride and discrete YUV planer in > kernel? Such as below changes can help much for my usage case. > > --- a/include/linux/videodev2.h > +++ b/include/linux/videodev2.h > @@ -529,7 +529,20 @@ struct v4l2_buffer { > __u32 offset; > unsigned long userptr; > } m; > + /* UV/GB location is valid only in planer case */ > + union { > + __u32 offset_ug; > + unsigned long userptr_ug; > + } m_ug; > + union { > + __u32 offset_vb; > + unsigned long userptr_vb; > + } m_vb; > __u32 length; > + /* stride of YUV or RGB */ > + __u32 stride_yr; > + __u32 stride_ug; > + __u32 stride_vb; > __u32 input; > __u32 reserved; > }; > > If such change is acceptable for everyone, I may help on the > implementation. > Any comments are welcome. > > Jun >
Hi, Hans/Guennadi What do you think of supporting this feature? Jun