d3d9: fully initialize DXVAHD_BLT_STATE_OUTPUT_COLOR_SPACE_DATA

Although we set all known usable bits, it seems that leaving reserved bits
"uninitialized" doesn't work in some case. In particular with LLVM builds,
which results in bogus output.

Co-authored-by: Pierre Lamot <pierre@videolabs.io>

modules/video_output/opengl/interop_dxva2.c

@@ -387,11 +387,12 @@ static int InitRangeProcessor(struct vlc_gl_interop *interop, IDirect3DDevice9Ex
 
     SetupProcessorInput(interop, &interop->fmt_in, src_format);
 
-    DXVAHD_BLT_STATE_OUTPUT_COLOR_SPACE_DATA colorspace;
-    colorspace.Usage = 0; // playback
-    colorspace.RGB_Range = true ? 0 : 1;
-    colorspace.YCbCr_xvYCC = true ? 1 : 0;
-    colorspace.YCbCr_Matrix = false ? 0 : 1;
+    DXVAHD_BLT_STATE_OUTPUT_COLOR_SPACE_DATA colorspace = {
+        .Usage = 0, // playback
+        .RGB_Range = true ? 0 : 1,
+        .YCbCr_xvYCC = true ? 1 : 0,
+        .YCbCr_Matrix = false ? 0 : 1,
+    };
     hr = IDXVAHD_VideoProcessor_SetVideoProcessBltState( sys->processor.proc, DXVAHD_BLT_STATE_OUTPUT_COLOR_SPACE, sizeof(colorspace), &colorspace);
 
     return VLC_SUCCESS;

modules/video_output/win32/direct3d9.c

@@ -1582,11 +1582,12 @@ static int InitRangeProcessor(vout_display_t *vd, const d3d9_format_t *d3dfmt,
 
     SetupProcessorInput(vd, vd->source, d3dfmt);
 
-    DXVAHD_BLT_STATE_OUTPUT_COLOR_SPACE_DATA colorspace;
-    colorspace.Usage = 0; // playback
-    colorspace.RGB_Range = render_out->full_range ? 0 : 1;
-    colorspace.YCbCr_xvYCC = render_out->full_range ? 1 : 0;
-    colorspace.YCbCr_Matrix = render_out->colorspace == libvlc_video_colorspace_BT601 ? 0 : 1;
+    DXVAHD_BLT_STATE_OUTPUT_COLOR_SPACE_DATA colorspace = {
+        .Usage = 0, // playback
+        .RGB_Range = render_out->full_range ? 0 : 1,
+        .YCbCr_xvYCC = render_out->full_range ? 1 : 0,
+        .YCbCr_Matrix = render_out->colorspace == libvlc_video_colorspace_BT601 ? 0 : 1,
+    };
     hr = IDXVAHD_VideoProcessor_SetVideoProcessBltState( sys->processor.proc, DXVAHD_BLT_STATE_OUTPUT_COLOR_SPACE, sizeof(colorspace), &colorspace);
 
     return VLC_SUCCESS;