AndroidVideoEncodeAccelerator is born!

AVEA is the encode-side analogue of AndroidVideoDecodeAccelerator, or the
Android analogue of ExynosVideoEncodeAccelerator, depending on your POV.
Also included in this CL:
- MediaCodecBridge learns how to be an encoder, too.
- MediaCodecBridge::Start is sunk into Create since they were always called
  together.
- android.os.Log() is given an exception parameter instead of concatenating its
  .toString() (and losing its stacktrace!)
- MediaCodecBridge exposes its buffers to reduce unnecessary memcpy'ing

Performance impact: isolating encode performance by making Android decode only
240p and no audio send/receive with the following URLs:
z620/gprecise: https://apprtc.appspot.com/?video=maxHeight=240&audio=false&r=<ROOM>
Nexus5: https://apprtc.appspot.com/?video=minHeight=720,maxHeight=720,minWidth=1280,maxWidth=1280&audio=false&r=<ROOM>
All 4 cores are max'd are running at top speed (ondemand governor ramps them up
on its own with this workload).
SW encode: CPU utilization 80% and desktop receives 0.1-0.5FPS (jankily).
HW encode: CPU utilization 60-70% and desktop receives 30FPS reliably.

Comparing an easier workload of encoding 360p:
z620/gprecise: https://apprtc.appspot.com/?video=maxHeight=240&audio=false&r=<ROOM>
Nexus5: https://apprtc.appspot.com/?video=minHeight=360,maxHeight=360,minWidth=640,maxWidth=640&audio=false&r=<ROOM>
Set all 4 cores to "performance" governor for stable comparison.
SW encode: CPU utilization 63% and desktop receives 30FPS reliably.
HW encode: CPU utilization 53% and desktop receives 30FPS reliably.

BUG=313115

Review URL: https://codereview.chromium.org/74563002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238658 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 1 insertions, 0 deletions

diff --git a/content/browser/resources/gpu/info_view.js b/content/browser/resources/gpu/info_view.js
index 13afa4a..e736d8e 100644
--- a/content/browser/resources/gpu/info_view.js
+++ b/content/browser/resources/gpu/info_view.js
@@ -92,6 +92,7 @@ cr.define('gpu', function() {
         'flash_stage3d_baseline': 'Flash Stage3D Baseline profile',
         'texture_sharing': 'Texture Sharing',
         'video_decode': 'Video Decode',
+        'video_encode': 'Video Encode',
         'video': 'Video',
         // GPU Switching
         'gpu_switching': 'GPU Switching',