jpark37 2656bf0a90 libobs: Rework RGB to YUV conversion
RGB to YUV converison was previously baked into every scale shader, but
this work has been moved to the YUV packing shaders. The scale shaders
now write RGBA instead. In the case where base and output resolutions
are identical, the render texture is forwarded directly to the YUV pack
step, skipping an entire fullscreen pass.

Intel GPA, SetStablePowerState, Intel HD Graphics 530, NV12

1920x1080, Before:
RGBA -> UYVX: ~321 us
UYVX -> Y: ~480 us
UYVX -> UV: ~127 us

1920x1080, After:
[forward render texture]
RGBA -> Y: ~487 us
RGBA -> UV: ~131 us

1920x1080 -> 1280x720, Before:
RGBA -> UYVX: ~268 us
UYVX -> Y: ~209 us
UYVX -> UV: ~57 us

1920x1080 -> 1280x720, After:
RGBA -> RGBA (rescale): ~268 us
RGBA -> Y: ~210 us
RGBA -> UV: ~58 us
2019-07-22 01:12:35 -07:00
2019-05-23 18:58:20 +10:00
2019-07-08 08:11:56 -07:00
2019-03-20 02:41:38 +01:00
2019-06-11 01:42:42 +02:00
2019-07-21 19:49:41 -07:00
2015-07-11 09:10:27 -07:00
2018-07-14 08:21:00 +01:00

OBS Studio <https://obsproject.com>
===================================

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What is OBS Studio?
-------------------

  OBS Studio is software designed for capturing, compositing, encoding,
  recording, and streaming video content, efficiently.

  It's distributed under the GNU General Public License v2 (or any later
  version) - see the accompanying COPYING file for more details.

Quick Links
-----------

 - Website: https://obsproject.com

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Contributing
------------

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