libmpcodecs/vd_dshow.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <stdarg.h>
  22
  23 #include "config.h"
  24
  25 #include "mp_msg.h"
  26
  27 #include "vd_internal.h"
  28
  29 #include "loader/dshow/DS_VideoDecoder.h"
  30
  31 static const vd_info_t info = {
  32         "DirectShow video codecs",
  33         "dshow",
  34         "A'rpi",
  35         "based on http://avifile.sf.net",
  36         "win32 codecs"
  37 };
  38
  39 LIBVD_EXTERN(dshow)
  40
  41 // to set/get/query special features/parameters
  42 static int control(sh_video_t *sh,int cmd,void* arg,...){
  43     switch(cmd){
  44     case VDCTRL_QUERY_MAX_PP_LEVEL:
  45         return 4;
  46     case VDCTRL_SET_PP_LEVEL:
  47         if(!sh->context) return CONTROL_ERROR;
  48         DS_VideoDecoder_SetValue(sh->context,"Quality",*((int*)arg));
  49         return CONTROL_OK;
  50
  51     case VDCTRL_SET_EQUALIZER: {
  52         va_list ap;
  53         int value;
  54         va_start(ap, arg);
  55         value=va_arg(ap, int);
  56         va_end(ap);
  57         if(DS_VideoDecoder_SetValue(sh->context,arg,50+value/2)==0)
  58             return CONTROL_OK;
  59         return CONTROL_FALSE;
  60     }
  61
  62     }
  63     return CONTROL_UNKNOWN;
  64 }
  65
  66 // init driver
  67 static int init(sh_video_t *sh){
  68     unsigned int out_fmt=sh->codec->outfmt[0];
  69
  70     /* Hack for VSSH codec: new dll can't decode old files
  71      * In my samples old files have no extradata, so use that info
  72      * to decide what dll should be used (here and in vd_vfw).
  73      */
  74     if (!strcmp(sh->codec->dll, "vsshdsd.dll") && (sh->bih->biSize == 40))
  75       return 0;
  76
  77     if(!(sh->context=DS_VideoDecoder_Open(sh->codec->dll,&sh->codec->guid, sh->bih, 0, 0))){
  78         mp_tmsg(MSGT_DECVIDEO,MSGL_ERR,"ERROR: Could not open required DirectShow codec %s.\n",sh->codec->dll);
  79         mp_tmsg(MSGT_DECVIDEO,MSGL_HINT,"You need to upgrade/install the binary codecs package.\nGo to http://www.mplayerhq.hu/dload.html\n");
  80         return 0;
  81     }
  82     if(!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,out_fmt)) return 0;
  83     // mpcodecs_config_vo can change the format
  84     out_fmt=sh->codec->outfmt[sh->outfmtidx];
  85     switch(out_fmt){
  86     case IMGFMT_YUY2:
  87     case IMGFMT_UYVY:
  88         DS_VideoDecoder_SetDestFmt(sh->context,16,out_fmt);break; // packed YUV
  89     case IMGFMT_YV12:
  90     case IMGFMT_I420:
  91     case IMGFMT_IYUV:
  92         DS_VideoDecoder_SetDestFmt(sh->context,12,out_fmt);break; // planar YUV
  93     case IMGFMT_YVU9:
  94         DS_VideoDecoder_SetDestFmt(sh->context,9,out_fmt);break;
  95     default:
  96         DS_VideoDecoder_SetDestFmt(sh->context,out_fmt&255,0);    // RGB/BGR
  97     }
  98     DS_SetAttr_DivX("Quality",divx_quality);
  99     DS_VideoDecoder_StartInternal(sh->context);
 100     mp_tmsg(MSGT_DECVIDEO,MSGL_V,"INFO: Win32/DShow video codec init OK.\n");
 101     return 1;
 102 }
 103
 104 // uninit driver
 105 static void uninit(sh_video_t *sh){
 106     DS_VideoDecoder_Destroy(sh->context);
 107 }
 108
 109 //mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
 110
 111 // decode a frame
 112 static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
 113     mp_image_t* mpi;
 114     if(len<=0) return NULL; // skipped frame
 115
 116     if(flags&3){
 117         // framedrop:
 118         DS_VideoDecoder_DecodeInternal(sh->context, data, len, 0, 0);
 119         return NULL;
 120     }
 121
 122     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, MP_IMGFLAG_COMMON_PLANE,
 123         sh->disp_w, sh->disp_h);
 124
 125     if(!mpi){   // temporary!
 126         mp_tmsg(MSGT_DECVIDEO,MSGL_WARN,"[VD_DMO] Couldn't allocate image for cinepak codec.\n");
 127         return NULL;
 128     }
 129
 130     DS_VideoDecoder_DecodeInternal(sh->context, data, len, 0, mpi->planes[0]);
 131
 132     return mpi;
 133 }