dlls/strmbase/mediatype.c

   1 /*
   2  * Implementation of MedaType utility functions
   3  *
   4  * Copyright 2003 Robert Shearman
   5  * Copyright 2010 Aric Stewart, CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "strmbase_private.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
  25
  26 static const struct
  27 {
  28     const GUID *guid;
  29     const char *name;
  30 }
  31 strmbase_guids[] =
  32 {
  33 #define X(g) {&(g), #g}
  34     X(GUID_NULL),
  35
  36 #undef OUR_GUID_ENTRY
  37 #define OUR_GUID_ENTRY(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) X(name),
  38 #include "uuids.h"
  39
  40 #undef X
  41 };
  42
  43 static const char *strmbase_debugstr_guid(const GUID *guid)
  44 {
  45     unsigned int i;
  46
  47     for (i = 0; i < ARRAY_SIZE(strmbase_guids); ++i)
  48     {
  49         if (IsEqualGUID(strmbase_guids[i].guid, guid))
  50             return wine_dbg_sprintf("%s", strmbase_guids[i].name);
  51     }
  52
  53     return debugstr_guid(guid);
  54 }
  55
  56 static const char *debugstr_fourcc(DWORD fourcc)
  57 {
  58     char str[4] = {fourcc, fourcc >> 8, fourcc >> 16, fourcc >> 24};
  59     if (isprint(str[0]) && isprint(str[1]) && isprint(str[2]) && isprint(str[3]))
  60         return wine_dbgstr_an(str, 4);
  61     return wine_dbg_sprintf("%#x", fourcc);
  62 }
  63
  64 void strmbase_dump_media_type(const AM_MEDIA_TYPE *mt)
  65 {
  66     if (!TRACE_ON(strmbase) || !mt) return;
  67
  68     TRACE("Dumping media type %p: major type %s, subtype %s",
  69             mt, strmbase_debugstr_guid(&mt->majortype), strmbase_debugstr_guid(&mt->subtype));
  70     if (mt->bFixedSizeSamples) TRACE(", fixed size samples");
  71     if (mt->bTemporalCompression) TRACE(", temporal compression");
  72     if (mt->lSampleSize) TRACE(", sample size %d", mt->lSampleSize);
  73     if (mt->pUnk) TRACE(", pUnk %p", mt->pUnk);
  74     TRACE(", format type %s.\n", strmbase_debugstr_guid(&mt->formattype));
  75
  76     if (!mt->pbFormat) return;
  77
  78     TRACE("Dumping format %p: ", mt->pbFormat);
  79
  80     if (IsEqualGUID(&mt->formattype, &FORMAT_WaveFormatEx) && mt->cbFormat >= sizeof(WAVEFORMATEX))
  81     {
  82         WAVEFORMATEX *wfx = (WAVEFORMATEX *)mt->pbFormat;
  83
  84         TRACE("tag %#x, %u channels, sample rate %u, %u bytes/sec, alignment %u, %u bits/sample.\n",
  85                 wfx->wFormatTag, wfx->nChannels, wfx->nSamplesPerSec,
  86                 wfx->nAvgBytesPerSec, wfx->nBlockAlign, wfx->wBitsPerSample);
  87
  88         if (wfx->cbSize)
  89         {
  90             const unsigned char *extra = (const unsigned char *)(wfx + 1);
  91             unsigned int i;
  92
  93             TRACE("  Extra bytes:");
  94             for (i = 0; i < wfx->cbSize; ++i)
  95             {
  96                 if (!(i % 16)) TRACE("\n     ");
  97                 TRACE(" %02x", extra[i]);
  98             }
  99             TRACE("\n");
 100         }
 101     }
 102     else if (IsEqualGUID(&mt->formattype, &FORMAT_VideoInfo) && mt->cbFormat >= sizeof(VIDEOINFOHEADER))
 103     {
 104         VIDEOINFOHEADER *vih = (VIDEOINFOHEADER *)mt->pbFormat;
 105
 106         TRACE("source %s, target %s, bitrate %u, error rate %u, %s sec/frame, ",
 107                 wine_dbgstr_rect(&vih->rcSource), wine_dbgstr_rect(&vih->rcTarget),
 108                 vih->dwBitRate, vih->dwBitErrorRate, debugstr_time(vih->AvgTimePerFrame));
 109         TRACE("size %dx%d, %u planes, %u bpp, compression %s, image size %u",
 110                 vih->bmiHeader.biWidth, vih->bmiHeader.biHeight, vih->bmiHeader.biPlanes,
 111                 vih->bmiHeader.biBitCount, debugstr_fourcc(vih->bmiHeader.biCompression),
 112                 vih->bmiHeader.biSizeImage);
 113         if (vih->bmiHeader.biXPelsPerMeter || vih->bmiHeader.biYPelsPerMeter)
 114             TRACE(", resolution %dx%d", vih->bmiHeader.biXPelsPerMeter, vih->bmiHeader.biYPelsPerMeter);
 115         if (vih->bmiHeader.biClrUsed) TRACE(", %d colours", vih->bmiHeader.biClrUsed);
 116         if (vih->bmiHeader.biClrImportant) TRACE(", %d important colours", vih->bmiHeader.biClrImportant);
 117         TRACE(".\n");
 118     }
 119     else
 120         TRACE("not implemented for this format type.\n");
 121 }
 122
 123 HRESULT WINAPI CopyMediaType(AM_MEDIA_TYPE *dest, const AM_MEDIA_TYPE *src)
 124 {
 125     *dest = *src;
 126     if (src->pbFormat)
 127     {
 128         dest->pbFormat = CoTaskMemAlloc(src->cbFormat);
 129         if (!dest->pbFormat)
 130             return E_OUTOFMEMORY;
 131         memcpy(dest->pbFormat, src->pbFormat, src->cbFormat);
 132     }
 133     if (dest->pUnk)
 134         IUnknown_AddRef(dest->pUnk);
 135     return S_OK;
 136 }
 137
 138 void WINAPI FreeMediaType(AM_MEDIA_TYPE * pMediaType)
 139 {
 140     CoTaskMemFree(pMediaType->pbFormat);
 141     pMediaType->pbFormat = NULL;
 142     if (pMediaType->pUnk)
 143     {
 144         IUnknown_Release(pMediaType->pUnk);
 145         pMediaType->pUnk = NULL;
 146     }
 147 }
 148
 149 AM_MEDIA_TYPE * WINAPI CreateMediaType(AM_MEDIA_TYPE const * pSrc)
 150 {
 151     AM_MEDIA_TYPE * pDest;
 152
 153     pDest = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
 154     if (!pDest)
 155         return NULL;
 156
 157     if (FAILED(CopyMediaType(pDest, pSrc)))
 158     {
 159         CoTaskMemFree(pDest);
 160         return NULL;
 161     }
 162
 163     return pDest;
 164 }
 165
 166 void WINAPI DeleteMediaType(AM_MEDIA_TYPE * pMediaType)
 167 {
 168     FreeMediaType(pMediaType);
 169     CoTaskMemFree(pMediaType);
 170 }