Fix ffmpeg compilation and tests on win CI

- fix unused variables
- fix screen capture crash
- related commit in qt5 fixes ffmpeg build on CI

Currently, the build works with msvc and mingw,
llvm should be added in the next commits.

See build example:
https://testresults.qt.io/coin/integration/qt/qtmultimedia/tasks/web_qt_qtmultimedia_1667916985085

Change-Id: Ibd27c7520a00899c893a842eef55fa4f30eba948
Reviewed-by: Lars Knoll <lars@knoll.priv.no>
(cherry picked from commit 0c2576112d98d5fcadbfb2ee9f407bbc9ad72d85)

1 files changed, 1 insertions, 2 deletions

diff --git a/src/plugins/multimedia/ffmpeg/qffmpeghwaccel_d3d11.cpp b/src/plugins/multimedia/ffmpeg/qffmpeghwaccel_d3d11.cpp
index f0a6c7b91..34483c9d6 100644
--- a/src/plugins/multimedia/ffmpeg/qffmpeghwaccel_d3d11.cpp
+++ b/src/plugins/multimedia/ffmpeg/qffmpeghwaccel_d3d11.cpp
@@ -31,7 +31,7 @@ public:
         : m_tex(tex)
     {}
 
-    qint64 textureHandle(int plane) override
+    qint64 textureHandle(int /*plane*/) override
     {
         return qint64(m_tex.get());
     }
@@ -122,7 +122,6 @@ TextureSet *D3D11TextureConverter::getTextures(AVFrame *frame)
         if (sharedTex) {
             auto tex = copyTextureFromArray(dev, sharedTex.get(), index);
             if (tex) {
-                QVideoFrameFormat::PixelFormat format = QFFmpegVideoBuffer::toQtPixelFormat(AVPixelFormat(fCtx->sw_format));
                 return new D3D11TextureSet(std::move(tex));
             }
         }