H264VideoToolboxEncoder: Add support for native handles

H264VideoToolboxEncoder: Add support for native handles

Support encoding from CVPixelBuffers directly in H264VideoToolboxEncoder.
If the frame needs to be scaled, it will fall back to the previous slow
path:
CVPixelBuffer -> NV12 -> I420 -> (scale) I420 -> NV12 -> CVPixelBuffer.

BUG=webrtc:4081
Committed: https://crrev.com/11dd52bcc69d074f2ea9473fbf95dd42a0cfde1e
Cr-Commit-Position: refs/heads/master@{#13439}

[magjed_webrtc, 2016-07-11 11:40:45]

Description was changed from

==========
H264VideoToolboxEncoder: Add support for native handles

Support encoding from CVPixelBuffers directly in H264VideoToolboxEncoder.
If the frame needs to be scaled, it will fall back to the previous slow
path:
CVPixelBuffer -> NV12 -> I420 -> (scale) I420 -> NV12 -> CVPixelBuffer.

BUG=4081
==========

to

==========
H264VideoToolboxEncoder: Add support for native handles

Support encoding from CVPixelBuffers directly in H264VideoToolboxEncoder.
If the frame needs to be scaled, it will fall back to the previous slow
path:
CVPixelBuffer -> NV12 -> I420 -> (scale) I420 -> NV12 -> CVPixelBuffer.

BUG=webrtc:4081
==========

[magjed_webrtc, 2016-07-11 11:50:00]

magjed@webrtc.org changed reviewers:
+ tkchin@webrtc.org

[magjed_webrtc, 2016-07-11 11:50:43]

Please take a look.

[tkchin_webrtc, 2016-07-11 18:44:19]

lgtm

[magjed_webrtc, 2016-07-12 07:45:19]

The CQ bit was checked by magjed@webrtc.org

[commit-bot: I haz the power, 2016-07-12 07:45:28]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2016-07-12 08:26:45]

Description was changed from

==========
H264VideoToolboxEncoder: Add support for native handles

Support encoding from CVPixelBuffers directly in H264VideoToolboxEncoder.
If the frame needs to be scaled, it will fall back to the previous slow
path:
CVPixelBuffer -> NV12 -> I420 -> (scale) I420 -> NV12 -> CVPixelBuffer.

BUG=webrtc:4081
==========

to

==========
H264VideoToolboxEncoder: Add support for native handles

Support encoding from CVPixelBuffers directly in H264VideoToolboxEncoder.
If the frame needs to be scaled, it will fall back to the previous slow
path:
CVPixelBuffer -> NV12 -> I420 -> (scale) I420 -> NV12 -> CVPixelBuffer.

BUG=webrtc:4081
==========

[commit-bot: I haz the power, 2016-07-12 08:26:46]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-12 08:26:55]

Description was changed from

==========
H264VideoToolboxEncoder: Add support for native handles

Support encoding from CVPixelBuffers directly in H264VideoToolboxEncoder.
If the frame needs to be scaled, it will fall back to the previous slow
path:
CVPixelBuffer -> NV12 -> I420 -> (scale) I420 -> NV12 -> CVPixelBuffer.

BUG=webrtc:4081
==========

to

==========
H264VideoToolboxEncoder: Add support for native handles

Support encoding from CVPixelBuffers directly in H264VideoToolboxEncoder.
If the frame needs to be scaled, it will fall back to the previous slow
path:
CVPixelBuffer -> NV12 -> I420 -> (scale) I420 -> NV12 -> CVPixelBuffer.

BUG=webrtc:4081

Committed: https://crrev.com/11dd52bcc69d074f2ea9473fbf95dd42a0cfde1e
Cr-Commit-Position: refs/heads/master@{#13439}
==========

[commit-bot: I haz the power, 2016-07-12 08:26:56]

Patchset 1 (id:??) landed as
https://crrev.com/11dd52bcc69d074f2ea9473fbf95dd42a0cfde1e
Cr-Commit-Position: refs/heads/master@{#13439}