Sweden-Number/dlls/strmbase/mediatype.c

171 lines
5.4 KiB
C

/*
* Implementation of MedaType utility functions
*
* Copyright 2003 Robert Shearman
* Copyright 2010 Aric Stewart, CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "strmbase_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
static const struct
{
const GUID *guid;
const char *name;
}
strmbase_guids[] =
{
#define X(g) {&(g), #g}
X(GUID_NULL),
#undef OUR_GUID_ENTRY
#define OUR_GUID_ENTRY(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) X(name),
#include "uuids.h"
#undef X
};
static const char *strmbase_debugstr_guid(const GUID *guid)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(strmbase_guids); ++i)
{
if (IsEqualGUID(strmbase_guids[i].guid, guid))
return wine_dbg_sprintf("%s", strmbase_guids[i].name);
}
return debugstr_guid(guid);
}
static const char *debugstr_fourcc(DWORD fourcc)
{
char str[4] = {fourcc, fourcc >> 8, fourcc >> 16, fourcc >> 24};
if (isprint(str[0]) && isprint(str[1]) && isprint(str[2]) && isprint(str[3]))
return wine_dbgstr_an(str, 4);
return wine_dbg_sprintf("%#x", fourcc);
}
void strmbase_dump_media_type(const AM_MEDIA_TYPE *mt)
{
if (!TRACE_ON(strmbase) || !mt) return;
TRACE("Dumping media type %p: major type %s, subtype %s",
mt, strmbase_debugstr_guid(&mt->majortype), strmbase_debugstr_guid(&mt->subtype));
if (mt->bFixedSizeSamples) TRACE(", fixed size samples");
if (mt->bTemporalCompression) TRACE(", temporal compression");
if (mt->lSampleSize) TRACE(", sample size %d", mt->lSampleSize);
if (mt->pUnk) TRACE(", pUnk %p", mt->pUnk);
TRACE(", format type %s.\n", strmbase_debugstr_guid(&mt->formattype));
if (!mt->pbFormat) return;
TRACE("Dumping format %p: ", mt->pbFormat);
if (IsEqualGUID(&mt->formattype, &FORMAT_WaveFormatEx) && mt->cbFormat >= sizeof(WAVEFORMATEX))
{
WAVEFORMATEX *wfx = (WAVEFORMATEX *)mt->pbFormat;
TRACE("tag %#x, %u channels, sample rate %u, %u bytes/sec, alignment %u, %u bits/sample.\n",
wfx->wFormatTag, wfx->nChannels, wfx->nSamplesPerSec,
wfx->nAvgBytesPerSec, wfx->nBlockAlign, wfx->wBitsPerSample);
if (wfx->cbSize)
{
const unsigned char *extra = (const unsigned char *)(wfx + 1);
unsigned int i;
TRACE(" Extra bytes:");
for (i = 0; i < wfx->cbSize; ++i)
{
if (!(i % 16)) TRACE("\n ");
TRACE(" %02x", extra[i]);
}
TRACE("\n");
}
}
else if (IsEqualGUID(&mt->formattype, &FORMAT_VideoInfo) && mt->cbFormat >= sizeof(VIDEOINFOHEADER))
{
VIDEOINFOHEADER *vih = (VIDEOINFOHEADER *)mt->pbFormat;
TRACE("source %s, target %s, bitrate %u, error rate %u, %s sec/frame, ",
wine_dbgstr_rect(&vih->rcSource), wine_dbgstr_rect(&vih->rcTarget),
vih->dwBitRate, vih->dwBitErrorRate, debugstr_time(vih->AvgTimePerFrame));
TRACE("size %dx%d, %u planes, %u bpp, compression %s, image size %u",
vih->bmiHeader.biWidth, vih->bmiHeader.biHeight, vih->bmiHeader.biPlanes,
vih->bmiHeader.biBitCount, debugstr_fourcc(vih->bmiHeader.biCompression),
vih->bmiHeader.biSizeImage);
if (vih->bmiHeader.biXPelsPerMeter || vih->bmiHeader.biYPelsPerMeter)
TRACE(", resolution %dx%d", vih->bmiHeader.biXPelsPerMeter, vih->bmiHeader.biYPelsPerMeter);
if (vih->bmiHeader.biClrUsed) TRACE(", %d colours", vih->bmiHeader.biClrUsed);
if (vih->bmiHeader.biClrImportant) TRACE(", %d important colours", vih->bmiHeader.biClrImportant);
TRACE(".\n");
}
else
TRACE("not implemented for this format type.\n");
}
HRESULT WINAPI CopyMediaType(AM_MEDIA_TYPE *dest, const AM_MEDIA_TYPE *src)
{
*dest = *src;
if (src->pbFormat)
{
dest->pbFormat = CoTaskMemAlloc(src->cbFormat);
if (!dest->pbFormat)
return E_OUTOFMEMORY;
memcpy(dest->pbFormat, src->pbFormat, src->cbFormat);
}
if (dest->pUnk)
IUnknown_AddRef(dest->pUnk);
return S_OK;
}
void WINAPI FreeMediaType(AM_MEDIA_TYPE * pMediaType)
{
CoTaskMemFree(pMediaType->pbFormat);
pMediaType->pbFormat = NULL;
if (pMediaType->pUnk)
{
IUnknown_Release(pMediaType->pUnk);
pMediaType->pUnk = NULL;
}
}
AM_MEDIA_TYPE * WINAPI CreateMediaType(AM_MEDIA_TYPE const * pSrc)
{
AM_MEDIA_TYPE * pDest;
pDest = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
if (!pDest)
return NULL;
if (FAILED(CopyMediaType(pDest, pSrc)))
{
CoTaskMemFree(pDest);
return NULL;
}
return pDest;
}
void WINAPI DeleteMediaType(AM_MEDIA_TYPE * pMediaType)
{
FreeMediaType(pMediaType);
CoTaskMemFree(pMediaType);
}