libmpcodecs/vd_dmo.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <stdarg.h>
   4
   5 #include "config.h"
   6
   7 #include "mp_msg.h"
   8 #include "help_mp.h"
   9
  10 #include "vd_internal.h"
  11
  12 #include "loader/dmo/DMO_VideoDecoder.h"
  13
  14 static vd_info_t info = {
  15         "DMO video codecs",
  16         "dmo",
  17         "A'rpi",
  18         "based on http://avifile.sf.net",
  19         "win32 codecs"
  20 };
  21
  22 LIBVD_EXTERN(dmo)
  23
  24 // to set/get/query special features/parameters
  25 static int control(sh_video_t *sh,int cmd,void* arg,...){
  26     return CONTROL_UNKNOWN;
  27 }
  28
  29 // init driver
  30 static int init(sh_video_t *sh){
  31     unsigned int out_fmt;
  32     if(!(sh->context=DMO_VideoDecoder_Open(sh->codec->dll,&sh->codec->guid, sh->bih, 0, 0))){
  33         mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_MissingDLLcodec,sh->codec->dll);
  34         mp_msg(MSGT_DECVIDEO,MSGL_HINT,MSGTR_DownloadCodecPackage);
  35         return 0;
  36     }
  37     if(!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YUY2)) return 0;
  38     out_fmt=sh->codec->outfmt[sh->outfmtidx];
  39     switch(out_fmt){
  40     case IMGFMT_YUY2:
  41     case IMGFMT_UYVY:
  42         DMO_VideoDecoder_SetDestFmt(sh->context,16,out_fmt);break; // packed YUV
  43     case IMGFMT_YV12:
  44     case IMGFMT_I420:
  45     case IMGFMT_IYUV:
  46         DMO_VideoDecoder_SetDestFmt(sh->context,12,out_fmt);break; // planar YUV
  47     case IMGFMT_YVU9:
  48         DMO_VideoDecoder_SetDestFmt(sh->context,9,out_fmt);break;
  49     default:
  50         DMO_VideoDecoder_SetDestFmt(sh->context,out_fmt&255,0);    // RGB/BGR
  51     }
  52     DMO_VideoDecoder_StartInternal(sh->context);
  53     mp_msg(MSGT_DECVIDEO,MSGL_V,MSGTR_DMOInitOK);
  54     return 1;
  55 }
  56
  57 // uninit driver
  58 static void uninit(sh_video_t *sh){
  59     DMO_VideoDecoder_Destroy(sh->context);
  60 }
  61
  62 //mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
  63
  64 // decode a frame
  65 static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
  66     mp_image_t* mpi;
  67     if(len<=0) return NULL; // skipped frame
  68
  69     if(flags&3){
  70         // framedrop:
  71         DMO_VideoDecoder_DecodeInternal(sh->context, data, len, 0, 0);
  72         return NULL;
  73     }
  74
  75     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, 0 /*MP_IMGFLAG_ACCEPT_STRIDE*/,
  76         sh->disp_w, sh->disp_h);
  77
  78     if(!mpi){   // temporary!
  79         mp_msg(MSGT_DECVIDEO,MSGL_WARN,MSGTR_MPCODECS_CouldntAllocateImageForCinepakCodec);
  80         return NULL;
  81     }
  82
  83     DMO_VideoDecoder_DecodeInternal(sh->context, data, len, 1, mpi->planes[0]);
  84
  85     return mpi;
  86 }