libmpcodecs/vd_nuv.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 #include "config.h"
   5 #include "mp_msg.h"
   6
   7 #include "vd_internal.h"
   8
   9 static vd_info_t info = {
  10         "NuppelVideo decoder",
  11         "nuv",
  12         "A'rpi",
  13         "Alex & Panagiotis Issaris <takis@lumumba.luc.ac.be>",
  14         "native codecs"
  15 };
  16
  17 LIBVD_EXTERN(nuv)
  18
  19 // to set/get/query special features/parameters
  20 static int control(sh_video_t *sh,int cmd,void* arg,...){
  21     return CONTROL_UNKNOWN;
  22 }
  23
  24 // init driver
  25 static int init(sh_video_t *sh){
  26     return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_I420);
  27 }
  28
  29 // uninit driver
  30 static void uninit(sh_video_t *sh){
  31 }
  32
  33 //mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
  34
  35 void decode_nuv(
  36   unsigned char *encoded,
  37   int encoded_size,
  38   unsigned char *decoded,
  39   int width,
  40   int height);
  41
  42 // decode a frame
  43 static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
  44     mp_image_t* mpi;
  45     if(len<=0) return NULL; // skipped frame
  46
  47     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, 0,
  48         sh->disp_w, sh->disp_h);
  49     if(!mpi) return NULL;
  50
  51     decode_nuv(data, len, mpi->planes[0], sh->disp_w, sh->disp_h);
  52
  53     return mpi;
  54 }