func (self *Coder) prepare() {
if self.Ctx == nil {
self.Ctx = C.avcodec_alloc_context()
cid, _ := strconv.Atoui64(self.Parameter["codecid"])
self.Ctx.codec_id = uint32(cid)
}
/**
* @TODO: settng the fixed params like width, height, channels...
*/
}
func avcodec_alloc_context() *CodecContext {
return &CodecContext{ctx: C.avcodec_alloc_context()}
}