Video Playback Issues
Video Playback Issues
Videos not playing correctly? Here is how to diagnose and fix common video playback problems.
Black Screen During Video
Possible causes:
- Unsupported codec — The device cannot decode the video format
- File corrupted — The video file is damaged
- Insufficient hardware — The device lacks processing power
Solutions: 1. Re-encode the video as MP4 with H.264 codec and AAC audio 2. Reduce resolution to 1080p if on a budget device 3. Lower the bitrate to 8-10 Mbps 4. Re-upload the video and re-deploy
Video Stuttering or Buffering
Possible causes:
- High bitrate exceeding device capability
- Storage read speed too slow
- Multiple video zones competing for resources
Solutions: 1. Reduce video bitrate (target 8-15 Mbps for 1080p) 2. Use a constant frame rate (CFR, not VFR) 3. Limit to one video zone per composition on budget devices 4. Upgrade to a faster storage device (SSD vs. SD card)
Audio Issues
No audio:
- Check that the device volume is not muted
- Verify the video has an audio track
- Check HDMI audio output settings
- Ensure AAC audio codec is used
Audio out of sync:
- Re-encode with constant frame rate
- Use AAC audio (not MP3 or AC3)
- Reduce video complexity
Use FFmpeg to re-encode problematic videos: ffmpeg -i input.mov -c:v libx264 -crf 23 -c:a aac -b:a 128k -r 30 output.mp4 This produces a widely compatible output.
Platform-Specific Issues
Android:
- Most codec issues resolved with H.264
- Some boxes lack H.265 hardware decoding
- Check available RAM — video playback needs headroom
Tizen (Samsung):
- Stick to H.264 MP4
- Older models have limited codec support
- Check the Samsung SSSP version compatibility
WebOS (LG):
- H.264 MP4 works best
- WebM support varies by year
- Check LG firmware version
Web Player:
- Limited to browser-supported codecs
- H.264 and VP9 in Chrome
- No H.265 support in most browsers
Avoid interlaced video content. All digital signage displays use progressive scan. Interlaced video causes visible combing artifacts and poor image quality.