int ms_yuv_buf_init_from_mblk(YuvBuf *buf, mblk_t *m){
int w,h;
// read header
mblk_video_header* hdr = (mblk_video_header*)m->b_datap->db_base;
w = hdr->w;
h = hdr->h;
if (m->b_cont == NULL)
yuv_buf_init(buf,w,h,m->b_rptr);
else
yuv_buf_init(buf,w,h,m->b_cont->b_rptr);
return 0;
}
mblk_t *ms_yuv_buf_allocator_get(MSYuvBufAllocator *obj, MSPicture *buf, int w, int h) {
int size=(w * (h & 0x1 ? h+1 : h) *3)/2; /*swscale doesn't like odd numbers of line*/
const int header_size = sizeof(mblk_video_header);
const int padding=16;
mblk_t *msg = msgb_allocator_alloc(obj, header_size + size+padding);
mblk_video_header* hdr = (mblk_video_header*)msg->b_wptr;
hdr->w = w;
hdr->h = h;
msg->b_rptr += header_size;
msg->b_wptr += header_size;
yuv_buf_init(buf,w,h,msg->b_wptr);
msg->b_wptr+=size;
return msg;
}
mblk_t * ms_yuv_buf_alloc(YuvBuf *buf, int w, int h){
int size=(w*h*3)/2;
const int header_size =sizeof(mblk_video_header);
const int padding=16;
mblk_t *msg=allocb(header_size + size+padding,0);
// write width/height in header
mblk_video_header* hdr = (mblk_video_header*)msg->b_wptr;
hdr->w = w;
hdr->h = h;
msg->b_rptr += header_size;
msg->b_wptr += header_size;
yuv_buf_init(buf,w,h,msg->b_wptr);
msg->b_wptr+=size;
return msg;
}
mblk_t * ms_yuv_buf_alloc(YuvBuf *buf, int w, int h){
int size=(w * (h & 0x1 ? h+1 : h) *3)/2; /*swscale doesn't like odd numbers of line*/
const int header_size = sizeof(mblk_video_header);
const int padding=16;
mblk_t *msg=allocb(header_size + size+padding,0);
// write width/height in header
mblk_video_header* hdr = (mblk_video_header*)msg->b_wptr;
hdr->w = w;
hdr->h = h;
msg->b_rptr += header_size;
msg->b_wptr += header_size;
yuv_buf_init(buf,w,h,msg->b_wptr);
msg->b_wptr+=size;
return msg;
}
int ms_yuv_buf_init_from_mblk_with_size(YuvBuf *buf, mblk_t *m, int w, int h){
if (m->b_cont!=NULL) m=m->b_cont; /*skip potential video header */
yuv_buf_init(buf,w,h,m->b_rptr);
return 0;
}
