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Rounding error fix in media_opt_util.

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Review URL: https://webrtc-codereview.appspot.com/1013006

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3351 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
marpan@webrtc.org
2013-01-09 22:13:19 +00:00
parent a5e7e76def
commit ef1a760446
1 changed files with 3 additions and 1 deletions
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4
webrtc/modules/video_coding/main/source/media_opt_util.cc
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@ -309,8 +309,10 @@ VCMFecMethod::AvgRecoveryFEC(const VCMProtectionParameters* parameters) const
const float protectionFactor = static_cast<float>(_protectionFactorD) / const float protectionFactor = static_cast<float>(_protectionFactorD) /
255.0; 255.0;
// Round down for estimated #FEC packets/frame, to keep
// |fecPacketsPerFrame| <= |sourcePacketsPerFrame|.
WebRtc_UWord8 fecPacketsPerFrame = static_cast<WebRtc_UWord8> WebRtc_UWord8 fecPacketsPerFrame = static_cast<WebRtc_UWord8>
(0.5 + protectionFactor * avgTotPackets); (protectionFactor * avgTotPackets);
WebRtc_UWord8 sourcePacketsPerFrame = avgTotPackets - fecPacketsPerFrame; WebRtc_UWord8 sourcePacketsPerFrame = avgTotPackets - fecPacketsPerFrame;