Sergey Silkin 86684960b3 Adding layering configurator and rate allocator for VP9 SVC. ... The configurator decides number of spatial layers, their resolution and bitrate thresholds based on given input resolution and maximum number of spatial layers. The allocator distributes available bitrate across spatial and temporal layers. If there is not enough bitrate to provide acceptable quality for all spatial layers allocator disables enhancement layers one by one until the condition is met or number of layers is reduced to one. VP9 SVC related unit tests have been updated. Input resolution and bitrate in these tests have been increased to the level enough to provide desirable number of spatial layers. Bug: webrtc:8518 Change-Id: I9df790920227c7f7dd4d42a50a856c22f0f4389b Reviewed-on: https://webrtc-review.googlesource.com/60340 Commit-Queue: Sergey Silkin <ssilkin@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Reviewed-by: Stefan Holmer <stefan@webrtc.org> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Reviewed-by: Michael Horowitz <mhoro@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22672}		2018-03-29 10:16:47 +00:00
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vp9_globals.h	Adding layering configurator and rate allocator for VP9 SVC.	2018-03-29 10:16:47 +00:00
vp9.h	Reland "Update internal SW codecs to return unique_ptrs"	2017-11-13 14:23:58 +00:00