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// The higher the value, the more the bits will be given to each
// as available bandwidth goes up. Default is 1.0.
double priority;
double maxBitrate;
double minQuality;
double framerateBias;
// Resolution/cropping/scaling is controlled by the input track!
}
Send a thumbnail along with regular size
*var encodings1 = [ ssrc: 1, priority: 1.0 }] // Control the resolution
and framerate with a different track and RtpSender. var encodings2 = [{
ssrc: 2, // Prioritize the thumbnail over the main video. priority: 10.0
}]; *Sign Language
*(need high framerate, but don't get too bad of quality) var encodings = [{
minQuality: 0.2, framerateBias: 1.0 }]; *Screencast
*(High quality, framerate can be low) var encodings = [{ framerateBias:
0.0 }]; * Remote Desktop
*(High framerate, must not dowscale) var encodings = [{ framerateBias: 1.0
}]; *Audio more important than video
*var audioEncodings = [{ priority: 10.0 }]; var videoEncodings = [{
priority: 0.1 }]; *Video more important than audio
var audioEncodings = [{
priority: 0.1
}];
var videoEncodings = [{
priority: 10.0
}];
Crank up the quality
var encodings = [{
maxBitrate: 10000000
}];
Keep the bandwidth low
var encodings = [{
maxBitrate: 100000
}];
The text was updated successfully, but these errors were encountered:
- Support for contributing sources removed (re-classified as a 1.2 feature), as described in w3c#27
- Cleanup of DataChannel construction, as described in w3c#60
- Separate proposal on simulcast/layering, as described in w3c#61
- Separate proposal on quality, as described in w3c#62
- Fix for TCP candidate type, as described in w3c#63
- Fix to the fingerprint attribute, as described in w3c#64
- Fix to RTCRtpFeatures, as described in w3c#65
- Support for retrieval of remote certificates, as described in w3c#67
- Support for ICE error handling, described in w3c#68
- Support for Data Channel send rate control, as described in w3c#69
- Support for capabilities and settings, as described in w3c#70
- Removal of duplicate RTCRtpListener functionality, as described in w3c#71
- ICE gathering state added, as described in w3c#72
- Removed ICE role from the ICE transport constructor, as described in w3c#73
From: Peter Thatcher pthatcher@google.com
Date: Tue, 15 Apr 2014 12:18:31 -0700
Message-ID: CAJrXDUE7EAvKWrs1xPwX6WTY5iHy5GX-5k7K_WnP3wNiGDN+Mw@mail.gmail.com
To: "public-ortc@w3.org" public-ortc@w3.org
URL: http://lists.w3.org/Archives/Public/public-ortc/2014Apr/0065.html
Here's a simplified proposal for how to add quality control without getting
too mixed up with quality (there will be a separate proposal for that).
dictionary RTCRtpEncodingParameters {
// ... existing ssrc, codec, fec, rtx
// The higher the value, the more the bits will be given to each
// as available bandwidth goes up. Default is 1.0.
double priority;
double maxBitrate;
double minQuality;
// 1.0 == Bias toward framerate, 0.0 == Bias toward quality/resolution
double framerateBias;
// Resolution/cropping/scaling is controlled by the input track!
}
Send a thumbnail along with regular size
*var encodings1 = [ ssrc: 1, priority: 1.0 }] // Control the resolution
and framerate with a different track and RtpSender. var encodings2 = [{
ssrc: 2, // Prioritize the thumbnail over the main video. priority: 10.0
}]; *Sign Language
*(need high framerate, but don't get too bad of quality) var encodings = [{
minQuality: 0.2, framerateBias: 1.0 }]; *Screencast
*(High quality, framerate can be low) var encodings = [{ framerateBias:
0.0 }]; * Remote Desktop
*(High framerate, must not dowscale) var encodings = [{ framerateBias: 1.0
}]; *Audio more important than video
*var audioEncodings = [{ priority: 10.0 }]; var videoEncodings = [{
priority: 0.1 }]; *Video more important than audio
var audioEncodings = [{
priority: 0.1
}];
var videoEncodings = [{
priority: 10.0
}];
Crank up the quality
var encodings = [{
maxBitrate: 10000000
}];
Keep the bandwidth low
var encodings = [{
maxBitrate: 100000
}];
The text was updated successfully, but these errors were encountered: