6bf4e3735a
Environment variable optimizations: - KIVY_WINDOW='pygame' - Better window backend performance - KIVY_AUDIO='ffpyplayer' - Optimized audio playback - KIVY_GL_BACKEND='gl' - Use OpenGL for better graphics - FFMPEG_THREADS='4' - Multi-threaded video decoding - LIBPLAYER_BUFFER='2048000' - 2MB buffer for smooth playback - SDL_AUDIODRIVER='alsa' - Better audio on Raspberry Pi Kivy configuration optimizations: - multisampling=0 - Disable for better performance - fast_rgba=1 - Enable fast RGBA mode - Stereo audio (channels=2) - Reduced logging overhead (warning level) Video widget enhancements: - FFmpeg buffer optimization (2MB) - Multi-threaded decoding (4 threads) - Ignore index for better seeking - Allow codec fallback - 60 FPS animation delay New video optimization script (.video-optimization.sh): - GPU memory increased to 256MB - Install video codec libraries - Optimize swappiness to 30 (better memory management) - CPU forced to performance mode - Filesystem cache optimization Installation integration: - Runs video optimization automatically on Raspberry Pi - Configures GPU memory, libraries, and system settings - Improves overall video playback smoothness This addresses video stuttering, frame drops, and playback lag by optimizing at multiple levels: environment, application, and system.
62 lines
2.2 KiB
Bash
62 lines
2.2 KiB
Bash
#!/bin/bash
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# Video playback optimization script for Raspberry Pi
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# Improves video smoothness and reduces stuttering
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echo "Optimizing system for smooth video playback..."
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# 1. Increase GPU memory split for better video performance
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if [ -f /boot/config.txt ]; then
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echo "Checking GPU memory configuration..."
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if grep -q "gpu_mem=" /boot/config.txt; then
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# GPU memory already configured, check if it's sufficient
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CURRENT_GPU_MEM=$(grep "gpu_mem=" /boot/config.txt | head -1 | cut -d'=' -f2)
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if [ "$CURRENT_GPU_MEM" -lt 256 ]; then
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sudo sed -i 's/gpu_mem=.*/gpu_mem=256/' /boot/config.txt
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echo "✓ GPU memory increased to 256MB for video"
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fi
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else
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# Add GPU memory setting
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echo "gpu_mem=256" | sudo tee -a /boot/config.txt > /dev/null
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echo "✓ GPU memory set to 256MB for video"
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fi
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fi
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# 2. Install video codec support
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echo "Installing video codec libraries..."
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sudo apt-get install -y \
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libva-drm2 \
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libva2 \
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libavcodec-extra \
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libavutil-dev \
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2>/dev/null || true
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# 3. Optimize swappiness for better memory management
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echo "Optimizing memory management..."
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if [ -f /proc/sys/vm/swappiness ]; then
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CURRENT_SWAP=$(cat /proc/sys/vm/swappiness)
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if [ "$CURRENT_SWAP" -gt 30 ]; then
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echo 30 | sudo tee /proc/sys/vm/swappiness > /dev/null
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echo "vm.swappiness=30" | sudo tee -a /etc/sysctl.conf > /dev/null
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echo "✓ Swappiness optimized"
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fi
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fi
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# 4. Disable CPU frequency scaling for consistent performance
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echo "Ensuring CPU performance mode..."
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for cpu in /sys/devices/system/cpu/cpu[0-9]*; do
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if [ -f "$cpu/cpufreq/scaling_governor" ]; then
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echo performance | sudo tee "$cpu/cpufreq/scaling_governor" > /dev/null 2>&1 || true
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fi
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done
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echo "✓ CPU set to performance mode"
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# 5. Optimize file system cache
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echo "Optimizing filesystem cache..."
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echo 50 | sudo tee /proc/sys/vm/vfs_cache_pressure > /dev/null
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echo "vm.vfs_cache_pressure=50" | sudo tee -a /etc/sysctl.conf > /dev/null
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echo "✓ Filesystem cache optimized"
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echo ""
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echo "✅ Video playback optimization complete!"
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echo "Note: Some changes require a reboot to take effect."
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