libmpcodecs/vd_dmo.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <stdarg.h>
   4
   5 #include "config.h"
   6 #ifdef USE_DIRECTSHOW
   7
   8 #include "mp_msg.h"
   9 #include "help_mp.h"
  10
  11 #include "vd_internal.h"
  12
  13 #include "loader/dmo/DMO_VideoDecoder.h"
  14
  15 static vd_info_t info = {
  16         "DMO video codecs",
  17         "dmo",
  18         "A'rpi",
  19         "based on http://avifile.sf.net",
  20         "win32 codecs"
  21 };
  22
  23 LIBVD_EXTERN(dmo)
  24
  25 // to set/get/query special features/parameters
  26 static int control(sh_video_t *sh,int cmd,void* arg,...){
  27     return CONTROL_UNKNOWN;
  28 }
  29
  30 // init driver
  31 static int init(sh_video_t *sh){
  32     unsigned int out_fmt;
  33     if(!(sh->context=DMO_VideoDecoder_Open(sh->codec->dll,&sh->codec->guid, sh->bih, 0, 0))){
  34         mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_MissingDLLcodec,sh->codec->dll);
  35         mp_msg(MSGT_DECVIDEO,MSGL_HINT,MSGTR_DownloadCodecPackage);
  36         return 0;
  37     }
  38     if(!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YUY2)) return 0;
  39     out_fmt=sh->codec->outfmt[sh->outfmtidx];
  40     switch(out_fmt){
  41     case IMGFMT_YUY2:
  42     case IMGFMT_UYVY:
  43         DMO_VideoDecoder_SetDestFmt(sh->context,16,out_fmt);break; // packed YUV
  44     case IMGFMT_YV12:
  45     case IMGFMT_I420:
  46     case IMGFMT_IYUV:
  47         DMO_VideoDecoder_SetDestFmt(sh->context,12,out_fmt);break; // planar YUV
  48     case IMGFMT_YVU9:
  49         DMO_VideoDecoder_SetDestFmt(sh->context,9,out_fmt);break;
  50     default:
  51         DMO_VideoDecoder_SetDestFmt(sh->context,out_fmt&255,0);    // RGB/BGR
  52     }
  53     DMO_VideoDecoder_StartInternal(sh->context);
  54     mp_msg(MSGT_DECVIDEO,MSGL_V,MSGTR_DMOInitOK);
  55     return 1;
  56 }
  57
  58 // uninit driver
  59 static void uninit(sh_video_t *sh){
  60     DMO_VideoDecoder_Destroy(sh->context);
  61 }
  62
  63 //mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
  64
  65 // decode a frame
  66 static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
  67     mp_image_t* mpi;
  68     if(len<=0) return NULL; // skipped frame
  69
  70     if(flags&3){
  71         // framedrop:
  72         DMO_VideoDecoder_DecodeInternal(sh->context, data, len, 0, 0);
  73         return NULL;
  74     }
  75
  76     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, 0 /*MP_IMGFLAG_ACCEPT_STRIDE*/,
  77         sh->disp_w, sh->disp_h);
  78
  79     if(!mpi){   // temporary!
  80         mp_msg(MSGT_DECVIDEO,MSGL_WARN,MSGTR_MPCODECS_CouldntAllocateImageForCinepakCodec);
  81         return NULL;
  82     }
  83
  84     DMO_VideoDecoder_DecodeInternal(sh->context, data, len, 1, mpi->planes[0]);
  85
  86     return mpi;
  87 }
  88
  89 #endif