Video Streaming Formats - Real Time
Anything that can play within a Quicktime player should work within Second Life and Opensim. A typical URL for the "Media URL" on a plot in Second Life and Opensim would look like this:
We have successfully used the following encoding specs in Wirecast for live broadcasts for example:
- Video: encoded Quicktime H.264 Full Dolour 640x480 medium quality 10 frames per second keyframe every 45 frames, limit data rate to 220kbps.
- Audio: MPEG-4 44.10 stereo AAC low complexity 64kbits.sec sample rate: 32000bps (for some reason 44,100 is greyed out) Quality Best.
Video Formats - Saved and Steamed
- HD1080 (1920x1080) 16:9
- HD720 (1280x720) 16:9
- PSP (480x272) 16:9
- SD (768x576) 4:3 (Preserve Ratio via Crop)
- Hi (640x480, VGA) 4:3 (Preserve Ratio via Crop)
-
Lo (320x240, QVGA) 4:3 (Preserve Ratio via Crop)
Quicktime Video
- Compression: H.264
- Quality: High (not Best)
- Frame rate: 15
- Key Frame rate: use 24
- Frame Re-ordering: Yes
- Encoding Mode: Multi-pass
- Dimensions: (set to one needed - see above)
- Data rate: Automatic used (hence will alter for each size)
- Hinted for Streaming
Quicktime Audio
- Encoding: MPEG-4
- Audio Format: AAC (Low Complexity)
- Sample rate: 44.1kHz
- Quality: Better
- Channels : Mono (21 Channel)
- Bit rate limit: 64 Kbps
WMV Video - Cannot be used in Second Life - Use on Web Only
- Profile: Camtasia Studio Best Quality and File Size (recommended)
- Default Profile: This profile is ideal for delivery from a web server. The settings will maintain quality while only using as much file size as necessary. These settings are compatible with Microsoft Silverlight.
- Audio encoding mode: CBR
- Video encoding mode: Quality VBR
- Audio codec: Windows Media Audio 9.1
- Audio format: 48 kbps, 44 kHz, mono
- Video codec: Windows Media Video 9
- Video bit rate: Quality based