Add additional driver

Dockerfile

@@ -7,25 +7,33 @@ FROM fedora:44
 # libx264's output currently causes Discord to drop the stream after one frame.
 #
 # ffmpeg-free's h264_vaapi encoder is only the libva *loader* — it still needs a
-# hardware-specific VA-API driver to reach the GPU.  For AMD that's the radeonsi
-# driver in mesa-va-drivers, but Fedora's stock build strips H.264/HEVC for patent
-# reasons, so hardware H.264 encode requires mesa-va-drivers-freeworld from RPM
-# Fusion.  For Intel iGPUs (Gen8+, e.g. UHD Graphics) the equivalent driver is
-# intel-media-driver (the iHD driver) from RPM Fusion's nonfree repo — without it
-# the h264_vaapi probe fails on Intel hardware and the bot silently falls back to
-# the libopenh264 software encoder.  libva auto-selects the right driver from the
-# /dev/dri device's PCI ID, so installing both drivers is enough; we deliberately
-# do NOT hardcode LIBVA_DRIVER_NAME, which would force one vendor and break the
-# other.  We enable RPM Fusion ONLY for these drivers (and libva-utils, which
-# provides `vainfo` for debugging) — ffmpeg itself stays on ffmpeg-free.
+# hardware-specific VA-API driver to reach the GPU.  Fedora's stock VA-API drivers
+# strip H.264/HEVC for patent reasons, so hardware H.264 encode needs the RPM
+# Fusion builds.  We install one driver per supported GPU vendor:
+#   * AMD            -> mesa-va-drivers-freeworld (radeonsi)  [RPM Fusion free]
+#   * Intel Gen8+    -> intel-media-driver        (iHD)       [RPM Fusion nonfree]
+#   * Intel pre-Gen8 -> libva-intel-driver        (i965)      [RPM Fusion free]
+# Without the matching driver the h264_vaapi probe fails and the bot silently
+# falls back to the libopenh264 software encoder.  (NVIDIA uses h264_nvenc, not
+# VA-API; that encoder is already compiled into ffmpeg-free and loads the host's
+# libnvidia-encode at runtime via the NVIDIA container toolkit — no image package
+# needed.)  Fedora's libva searches /usr/lib64/dri, dri-freeworld and dri-nonfree
+# by default and auto-selects the right driver from the /dev/dri device's PCI ID,
+# so installing every driver side by side is enough; we deliberately do NOT
+# hardcode LIBVA_DRIVER_NAME, which would force one vendor and break the others.
+# We enable RPM Fusion ONLY for these drivers (and libva-utils, which provides
+# `vainfo` for debugging) — ffmpeg itself stays on ffmpeg-free.
 RUN dnf install -y \
         ffmpeg-free \
         libva-utils \
         python3 \
         python3-pip \
         https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-44.noarch.rpm \
         https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-44.noarch.rpm \
-    && dnf install -y --allowerasing mesa-va-drivers-freeworld intel-media-driver \
+    && dnf install -y --allowerasing \
+        mesa-va-drivers-freeworld \
+        intel-media-driver \
+        libva-intel-driver \
     && dnf clean all \
     && rm -rf /var/cache/dnf