Codec Settings

These following codec settings are the optimal settings for streaming destinations within Scrypted. Streaming destinations include:

• HomeKit
• Google Home
• Alexa
• Chromecast
• Web

Settings

• h264 video. Do NOT use H.264+, "Super" H.264, H.264B, or any other fancy variant. TURN IT OFF. Sometimes this unsupported variant setting is called "Smart Code(c)" and it should be set to "Close" or "Off".
• Configure all available camera substreams. Not all cameras may have a third stream.
  • 1080p Cameras:
    • 1920x1080, 2 Mbit variable bitrate (local streaming)
    • 1280x720, 1 Mbit, variable bitrate (remote/low streaming)
    • 640x480p, 500 Kbit variable bitrate (low streaming, if a third stream is available)
  • 2K Cameras:
    • 2560x1440, 3.5 Mbit variable bitrate (local streaming)
    • 1280x720, 1 Mbit, variable bitrate (remote/low streaming)
    • 640x480p, 500 Kbit variable bitrate (low streaming, if a third stream is available)
  • 4K Cameras:
    • 3840x2160, 8 Mbit, variable bitrate (local streaming)
    • 1280x720, 1 Mbit, variable bitrate (remote/low streaming)
    • 640x480p, 500 Kbit variable bitrate (low streaming, if a third stream is available)
• 4 second keyframe interval
  • Keyframe Interval is the number of seconds between keyframes. Frame Interval is the number frames between keyframes.
  • Cameras are typically configured in Frame Interval rather than Keyframe Interval. The formula for Frame Interval value is: Frame Interval = 4 * FPS. So if FPS is 30 as specified, Frame Interval should be set to 120.
• Audio codecs, in order of preference:
  • Opus (used for live streaming to HomeKit or web)
  • PCM-ulaw/G711u (raw format suitable for web)