loader/dshow/mediatype.c

   1 /*
   2  *     AM_MEDIA_TYPE service functions implementations
   3  *     Code is based on quartz/enummedia.c file from wine project.
   4  *     Modified by Vladimir Voroshilov
   5  *
   6  *     Original code: Copyright 2003 Robert Shearman
   7  *
   8  *     This program is free software; you can redistribute it and/or modify
   9  *     it under the terms of the GNU General Public License as published by
  10  *     the Free Software Foundation; either version 2 of the License, or
  11  *     (at your option) any later version.
  12  *
  13  *     This program is distributed in the hope that it will be useful,
  14  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *     GNU General Public License for more details.
  17  *
  18  *     You should have received a copy of the GNU General Public License
  19  *     along with this program; if not, write to the Free Software
  20  *     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  21  *
  22  */
  23 #include "mp_msg.h"
  24 #include "libmpcodecs/img_format.h"
  25 #include "loader/wine/winerror.h"
  26 #include "loader/com.h"
  27 #include "mediatype.h"
  28 #include "libwin32.h"
  29
  30 void DisplayMediaType(const char * label,const AM_MEDIA_TYPE* pmt){
  31     WAVEFORMATEX* pWF;
  32     VIDEOINFOHEADER* Vhdr;
  33     int i;
  34     GUID* iid;
  35
  36
  37     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"=======================\n");
  38     if(label){
  39         Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"AM_MEDIA_TYPE: %s\n",label);
  40     }else
  41         Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"AM_MEDIA_TYPE:\n");
  42     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"-(Ptr:%p)--------\n",pmt);
  43     for(i=0;i<sizeof(AM_MEDIA_TYPE);i++){
  44         Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"%02x ",(BYTE)((BYTE*)pmt)[i]);
  45         if((i+1)%8==0) Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"\n");
  46     }
  47     if((i)%8!=0) Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"\n");
  48     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"-(Ptr:%p)--(%lu)--\n",pmt->pbFormat,pmt->cbFormat);
  49     for(i=0;i<pmt->cbFormat;i++){
  50         Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"%02x ",(BYTE)pmt->pbFormat[i]);
  51         if((i+1)%8==0) Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"\n");
  52     }
  53     if((i)%8!=0) Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"\n");
  54     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"-----------------------\n");
  55     iid=(GUID*)&(pmt->subtype);
  56     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"Subtype:     %08x-%04x-%04x-%02x%02x-"
  57                  "%02x%02x%02x%02x%02x%02x\n",
  58                  iid->f1,  iid->f2,  iid->f3,
  59                  (unsigned char)iid->f4[1], (unsigned char)iid->f4[0],
  60                  (unsigned char)iid->f4[2], (unsigned char)iid->f4[3],
  61                  (unsigned char)iid->f4[4], (unsigned char)iid->f4[5],
  62                  (unsigned char)iid->f4[6], (unsigned char)iid->f4[7]);
  63
  64     iid=(GUID*)&(pmt->formattype);
  65     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"Format type: %08x-%04x-%04x-%02x%02x-"
  66                  "%02x%02x%02x%02x%02x%02x\n",
  67                  iid->f1,  iid->f2,  iid->f3,
  68                  (unsigned char)iid->f4[1], (unsigned char)iid->f4[0],
  69                  (unsigned char)iid->f4[2], (unsigned char)iid->f4[3],
  70                  (unsigned char)iid->f4[4], (unsigned char)iid->f4[5],
  71                  (unsigned char)iid->f4[6], (unsigned char)iid->f4[7]);
  72     if(pmt && memcmp(&pmt->formattype,&FORMAT_WaveFormatEx,16)==0 && pmt->pbFormat){
  73     pWF=(WAVEFORMATEX*)pmt->pbFormat;
  74     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"PMT: nChannels %d\n",pWF->nChannels);
  75     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"PMT: nSamplesPerSec %ld\n",pWF->nSamplesPerSec);
  76     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"PMT: wBitsPerSample %d\n",pWF->wBitsPerSample);
  77     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"PMT: nBlockAlign %d\n",pWF->nBlockAlign);
  78     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"PMT: nAvgBytesPerSec %ld\n",pWF->nAvgBytesPerSec);
  79     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"PMT: SampleSize %ld\n",pmt->lSampleSize);
  80     }
  81     if(pmt && memcmp(&pmt->formattype,&FORMAT_VideoInfo,16)==0 && pmt->pbFormat){
  82     Vhdr=(VIDEOINFOHEADER*)pmt->pbFormat;
  83     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"Vhdr: dwBitRate %ld\n",Vhdr->dwBitRate);
  84     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"Vhdr: biWidth %ld\n",Vhdr->bmiHeader.biWidth);
  85     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"Vhdr: biHeight %ld\n",Vhdr->bmiHeader.biHeight);
  86     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"Vhdr: biSizeImage %ld\n",Vhdr->bmiHeader.biSizeImage);
  87     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"Vhdr: biBitCount %d\n",Vhdr->bmiHeader.biBitCount);
  88     if(Vhdr->bmiHeader.biCompression){
  89         Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"Vhdr: biComression 0x%08lx (%s)\n",Vhdr->bmiHeader.biCompression,vo_format_name(Vhdr->bmiHeader.biCompression));
  90     }else
  91         Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"Vhdr: biComression 0x00000000\n");
  92
  93     }
  94     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"=======================\n");
  95 }
  96
  97 HRESULT CopyMediaType(AM_MEDIA_TYPE * pDest, const AM_MEDIA_TYPE *pSrc)
  98 {
  99     Debug mp_msg(MSGT_LOADER,MSGL_DBG4,"%s(%p) called\n", "CopyMediaType",pSrc);
 100
 101     if(!pSrc || !pDest) return E_POINTER;
 102
 103     if(pSrc == pDest) return E_INVALIDARG;
 104
 105     if(!pSrc->pbFormat && pSrc->cbFormat) return E_POINTER;
 106
 107     memcpy(pDest, pSrc, sizeof(AM_MEDIA_TYPE));
 108     if (!pSrc->pbFormat) return S_OK;
 109     if (!(pDest->pbFormat = CoTaskMemAlloc(pSrc->cbFormat)))
 110         return E_OUTOFMEMORY;
 111     memcpy(pDest->pbFormat, pSrc->pbFormat, pSrc->cbFormat);
 112     if (pDest->pUnk)
 113         pDest->pUnk->vt->AddRef(pDest->pUnk);
 114     return S_OK;
 115 }
 116
 117 void FreeMediaType(AM_MEDIA_TYPE * pMediaType)
 118 {
 119     if (!pMediaType) return;
 120     if (pMediaType->pbFormat)
 121     {
 122         CoTaskMemFree(pMediaType->pbFormat);
 123         pMediaType->pbFormat = NULL;
 124     }
 125     if (pMediaType->pUnk)
 126     {
 127         pMediaType->pUnk->vt->Release(pMediaType->pUnk);
 128         pMediaType->pUnk = NULL;
 129     }
 130 }
 131
 132 AM_MEDIA_TYPE * CreateMediaType(AM_MEDIA_TYPE const * pSrc)
 133 {
 134     AM_MEDIA_TYPE * pDest;
 135     if (!pSrc) return NULL;
 136     pDest = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
 137     if (!pDest)
 138         return NULL;
 139
 140     if (FAILED(CopyMediaType(pDest, pSrc)))
 141     {
 142         CoTaskMemFree(pDest);
 143         return NULL;
 144     }
 145
 146     return pDest;
 147 }
 148
 149 void DeleteMediaType(AM_MEDIA_TYPE * pMediaType)
 150 {
 151     if (!pMediaType) return;
 152     FreeMediaType(pMediaType);
 153     CoTaskMemFree(pMediaType);
 154 }
 155
 156 #define IsEqualGUID(a,b) (memcmp(a,b,16)==0)
 157 int CompareMediaTypes(const AM_MEDIA_TYPE * pmt1, const AM_MEDIA_TYPE * pmt2, int bWildcards)
 158 {
 159     return  ((bWildcards && (IsEqualGUID(&pmt1->majortype, &GUID_NULL) || IsEqualGUID(&pmt2->majortype, &GUID_NULL))) || IsEqualGUID(&pmt1->majortype, &pmt2->majortype)) &&
 160             ((bWildcards && (IsEqualGUID(&pmt1->subtype, &GUID_NULL)   || IsEqualGUID(&pmt2->subtype, &GUID_NULL)))   || IsEqualGUID(&pmt1->subtype, &pmt2->subtype));
 161 }