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In screenshare mode, suppress VP8 bitrate overshoot and increase quality

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This change includes several improvements:

* VP8 configured with new rate control
* Detection of frame dropping, with qp bump for next frame
* Increased target and TL0 bitrates
* Reworked rate control (TL allocation) in screenshare_layers

A note on performance: PSNR and SSIM is expected to get slightly worse with this cl. Frame drops and delays should however improve.

BUG=4171
R=pbos@webrtc.org, stefan@webrtc.org

Review URL: https://codereview.webrtc.org/1193513006.

Cr-Commit-Position: refs/heads/master@{#9495}
This commit is contained in:
Erik Språng
2015-06-24 11:24:44 +02:00
parent 7ab5f801dd
commit 2c4c914819
16 changed files with 610 additions and 294 deletions
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1
webrtc/modules/video_coding/codecs/interface/video_error_codes.h
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@ -27,5 +27,6 @@
#define WEBRTC_VIDEO_CODEC_UNINITIALIZED -7
#define WEBRTC_VIDEO_CODEC_ERR_REQUEST_SLI -12
#define WEBRTC_VIDEO_CODEC_FALLBACK_SOFTWARE -13
#define WEBRTC_VIDEO_CODEC_TARGET_BITRATE_OVERSHOOT -14
#endif // WEBRTC_MODULES_VIDEO_CODING_CODECS_INTERFACE_VIDEO_ERROR_CODES_H