build: multi-stage dockerfile with linuxserver/ffmpeg for full hardware encoding support

Dockerfile

@@ -1,15 +1,67 @@
-FROM node:20-alpine
+# NodeCast TV Docker Image
+#
+# Multi-stage build for FFmpeg with full hardware acceleration support.
+# Uses linuxserver/ffmpeg which includes NVENC, VAAPI, and QSV.
+#
+# Hardware acceleration:
+#   - VAAPI (Intel/AMD): Mount /dev/dri and add video/render groups
+#   - NVIDIA NVENC: Requires nvidia-container-toolkit on host + --gpus flag
+#   - Intel QSV: Mount /dev/dri
+#
+# Build: docker compose build
+# Run with VAAPI: docker run --device /dev/dri:/dev/dri --group-add video ...
+# Run with NVENC: docker run --gpus all ...
 
-# Install build dependencies for better-sqlite3 and FFmpeg for streaming
-# Using system FFmpeg instead of ffmpeg-static for better Docker DNS compatibility
-# Hardware acceleration packages:
-#   - mesa-va-gallium: AMD VAAPI (Radeon/Vega)
-#   - intel-media-driver: Intel VAAPI/QSV (newer Intel GPUs)
-#   - libva-intel-driver: Intel VAAPI (older Intel GPUs, Haswell-Skylake)
-#   - libva-utils: vainfo tool for debugging
-# Note: NVIDIA requires nvidia-container-toolkit on host + --gpus flag
-RUN apk add --no-cache python3 make g++ ffmpeg \
-    mesa-va-gallium intel-media-driver libva-intel-driver libva-utils
+# Stage 1: Get FFmpeg with all hardware encoders from linuxserver
+FROM linuxserver/ffmpeg:latest AS ffmpeg
+
+# Stage 2: Node.js runtime with app
+FROM node:20-slim
+
+# Install runtime dependencies for FFmpeg and hardware acceleration
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    # Build dependencies for better-sqlite3
+    python3 \
+    make \
+    g++ \
+    # VAAPI runtime libraries (AMD/Intel)
+    libva2 \
+    libva-drm2 \
+    libvdpau1 \
+    mesa-va-drivers \
+    # Intel VAAPI/QSV drivers
+    intel-media-va-driver \
+    i965-va-driver \
+    # VA-API utilities for debugging
+    vainfo \
+    # FFmpeg shared library dependencies
+    libx264-164 \
+    libx265-199 \
+    libfdk-aac2 \
+    libvpx7 \
+    libmp3lame0 \
+    libopus0 \
+    libvorbis0a \
+    libass9 \
+    libfreetype6 \
+    libfontconfig1 \
+    libssl3 \
+    # NVIDIA libraries (for NVENC when using --gpus)
+    libnvidia-encode1 \
+    && rm -rf /var/lib/apt/lists/* || true
+
+# Copy FFmpeg binaries from linuxserver/ffmpeg
+COPY --from=ffmpeg /usr/local/bin/ffmpeg /usr/local/bin/ffmpeg
+COPY --from=ffmpeg /usr/local/bin/ffprobe /usr/local/bin/ffprobe
+
+# Also try to copy from standard location if above fails
+COPY --from=ffmpeg /usr/bin/ffmpeg /usr/local/bin/ffmpeg 2>/dev/null || true
+COPY --from=ffmpeg /usr/bin/ffprobe /usr/local/bin/ffprobe 2>/dev/null || true
+
+# Verify FFmpeg works and show capabilities
+RUN ffmpeg -version || echo "FFmpeg copy failed, checking alternate location..." && \
+    ls -la /usr/local/bin/ff* || true
 
 WORKDIR /app
 
@@ -22,8 +74,8 @@ RUN npm ci --only=production
 # Copy application files
 COPY . .
 
-# Create data directory
-RUN mkdir -p /app/data
+# Create data and cache directories
+RUN mkdir -p /app/data /app/transcode-cache && chmod 777 /app/transcode-cache
 
 # Expose port
 EXPOSE 3000