quartz: Remove unused variables

[Andrew Talbot]

Changelog:
    quartz: Remove unused variables.

diff --git a/dlls/quartz/avidec.c b/dlls/quartz/avidec.c
index 83d212c..d449662 100644
--- a/dlls/quartz/avidec.c
+++ b/dlls/quartz/avidec.c
@@ -70,7 +70,6 @@ static HRESULT AVIDec_ProcessBegin(TransformFilterImpl* pTransformFilter)
 static HRESULT AVIDec_ProcessSampleData(TransformFilterImpl* pTransformFilter, IMediaSample *pSample)
 {
     AVIDecImpl* This = (AVIDecImpl*)pTransformFilter;
-    VIDEOINFOHEADER* format;
     AM_MEDIA_TYPE amt;
     HRESULT hr;
     DWORD res;
@@ -96,7 +95,6 @@ static HRESULT AVIDec_ProcessSampleData(TransformFilterImpl* pTransformFilter, I
 	ERR("Unable to retrieve media type\n");
 	goto error;
     }
-    format = (VIDEOINFOHEADER*)amt.pbFormat;
 
     /* Update input size to match sample size */
     This->pBihIn->biSizeImage = cbSrcStream;
diff --git a/dlls/quartz/mpegsplit.c b/dlls/quartz/mpegsplit.c
index 395ce71..eb2cb4b 100644
--- a/dlls/quartz/mpegsplit.c
+++ b/dlls/quartz/mpegsplit.c
@@ -123,7 +123,7 @@ static HRESULT parse_header(BYTE *header, LONGLONG *plen, LONGLONG *pduration)
 {
     LONGLONG duration;
 
-    int bitrate_index, freq_index, mode_ext, emphasis, lsf = 1, mpeg1, layer, mode, padding, bitrate, length;
+    int bitrate_index, freq_index, lsf = 1, mpeg1, layer, padding, bitrate, length;
 
     if (!(header[0] == 0xff && ((header[1]>>5)&0x7) == 0x7 &&
        ((header[1]>>1)&0x3) != 0 && ((header[2]>>4)&0xf) != 0xf &&
@@ -141,9 +141,6 @@ static HRESULT parse_header(BYTE *header, LONGLONG *plen, LONGLONG *pduration)
     bitrate_index = ((header[2]>>4)&0xf);
     freq_index = ((header[2]>>2)&0x3) + (mpeg1?(lsf*3):6);
     padding = ((header[2]>>1)&0x1);
-    mode = ((header[3]>>6)&0x3);
-    mode_ext = ((header[3]>>4)&0x3);
-    emphasis = ((header[3]>>0)&0x3);
 
     bitrate = tabsel_123[lsf][layer-1][bitrate_index] * 1000;
     if (!bitrate || layer != 3)
diff --git a/dlls/quartz/videorenderer.c b/dlls/quartz/videorenderer.c
index f49f8fb..97bb825 100644
--- a/dlls/quartz/videorenderer.c
+++ b/dlls/quartz/videorenderer.c
@@ -267,16 +267,11 @@ static DWORD VideoRenderer_SendSampleData(VideoRendererImpl* This, LPBYTE data,
 {
     AM_MEDIA_TYPE amt;
     HRESULT hr = S_OK;
-    DDSURFACEDESC sdesc;
-    int width;
-    int height;
-    LPBYTE palette = NULL;
     HDC hDC;
     BITMAPINFOHEADER *bmiHeader;
 
     TRACE("%p %p %d\n", This, data, size);
 
-    sdesc.dwSize = sizeof(sdesc);
     hr = IPin_ConnectionMediaType(This->ppPins[0], &amt);
     if (FAILED(hr)) {
         ERR("Unable to retrieve media type\n");
@@ -306,10 +301,6 @@ static DWORD VideoRenderer_SendSampleData(VideoRendererImpl* This, LPBYTE data,
     TRACE("biCompression = %s\n", debugstr_an((LPSTR)&(bmiHeader->biCompression), 4));
     TRACE("biSizeImage = %d\n", bmiHeader->biSizeImage);
 
-    width = bmiHeader->biWidth;
-    height = bmiHeader->biHeight;
-    palette = ((LPBYTE)bmiHeader) + bmiHeader->biSize;
- 
     if (!This->init)
     {
         if (!This->WindowPos.right || !This->WindowPos.bottom)