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libavutil/hwcontext_dxva2: Add check for possible errors from GetAdapterDisplayModeEx
This prevents a possible crash in CreateDeviceEx when using faulty response from GetAdapterDisplayModeEx and allows ffmpeg to fallback to classic d3d9. Signed-off-by: wm4 <nfxjfg@googlemail.com>
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@ -485,7 +485,11 @@ static int dxva2_device_create9ex(AVHWDeviceContext *ctx, UINT adapter)
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if (FAILED(hr))
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if (FAILED(hr))
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return AVERROR_UNKNOWN;
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return AVERROR_UNKNOWN;
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IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);
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hr = IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);
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if (FAILED(hr)) {
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IDirect3D9Ex_Release(d3d9ex);
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return AVERROR_UNKNOWN;
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}
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d3dpp.BackBufferFormat = modeex.Format;
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d3dpp.BackBufferFormat = modeex.Format;
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