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Base start bitrate on last observed bitrate.

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Instead of setting bitrates based on codec target settings (which may
have previously been capped by a codec max bitrate), fetch the last
bandwidth allocated for this channel. This fixes broken low start bitrates
due to QCIF being set as default codec in WebRtcVideoEngine2 which caps
the max bitrate to 200kbps.

BUG=1788
R=mflodman@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/43789004

Cr-Commit-Position: refs/heads/master@{#8780}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8780 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
pbos@webrtc.org
2015-03-18 14:40:03 +00:00
parent 5a477a0bc6
commit 143451d259
8 changed files with 83 additions and 8 deletions
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1
webrtc/video_engine/vie_codec_impl.h
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@ -51,6 +51,7 @@ class ViECodecImpl
unsigned int& delta_frames) const;
virtual int GetReceiveSideDelay(const int video_channel,
int* delay_ms) const;
uint32_t GetLastObservedBitrateBps(int video_channel) const override;
virtual int GetCodecTargetBitrate(const int video_channel,
unsigned int* bitrate) const;
virtual int GetNumDiscardedPackets(int video_channel) const;