This reverts commit 6e7167456b.
Reason for revert: Unexpected perf change
Original change's description:
> Adds experimental libvpx VP9 speed settings.
>
> Using the field trial WebRTC-VP9-PerformanceFlags, this CL allows you to
> configure the libvpx VP9 encoder with a list of flags to affect the
> quality vs speed tradeoff. This CL adds support for:
>
> * Speed (effort), for the temporal base layer frames
> * Speed for higher (non-base) layer frames
> * De-blocking (as part of the loopfilter) enabled for:
> 0 = all frames
> 1 = all but frames from the highest temporal layer
> 2 = no frames
>
> Each entry in the list has a threshold in min number of pixels needed
> for settings in the entry to apply.
>
> Example: Two spatial layers (180p, 360p) with three temporal
> layers are configured. Field trial "WebRTC-VP9-PerformanceFlags" set to:
> "min_pixel_count:0|129600,base_layer_speed:5|8,high_layer_speed:7|8,deblock_mode:1|2"
> This translates to:
> S0:
> - TL0: Speed 5, deblocked
> - TL1: Speed 8, deblocked
> - TL2: Speed 8, not deblocked
> S1:
> - TL0: Speed 7, not deblocked
> - TL1: Speed 8, not deblocked
> - TL2: Speed 8, not deblocked
>
> Bug: webrtc:11551
> Change-Id: Ieef6816d3e0831ff53348ecc4a90260e2ef10422
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/188461
> Reviewed-by: Michael Horowitz <mhoro@webrtc.org>
> Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
> Commit-Queue: Erik Språng <sprang@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#32749}
TBR=sprang@webrtc.org,ssilkin@webrtc.org,mhoro@webrtc.org
Change-Id: If910963441ac1a0e002aac7066791c7cc7764a1a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:11551
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/196344
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32762}
ead570c963