[PATCH v4 0/5] v4l: extended crop/compose api

[Tomasz Stanislawski <t.stanislaws@samsung.com>]

Hello Everyone,

This is the fourth version of extended crop/compose RFC.  The patch-set
introduces new ioctls to V4L2 APIi for configuration of selection rectangles
like crop and compose areas. Please refer to discussion below for more details
about api development.

http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/32152

Changelog:

v3:
- added target for padded buffer
- reduced number of constraint flags to SIZE_LE and SIZE_GE
- removed try flag
- added documentation for selection ioctls
- added documentation for new model of cropping, composing and scaling
- support of selection api for s5p-tv
- fixed returning ioctl's structures on failure

v2:
- reduced number of hints and its semantics to be more practical and less
  restrictive
- combined EXTCROP and COMPOSE ioctls into VIDIOC_{S/G}_SELECTION
- introduced crop and compose targets
- introduced try flag that prevents passing configuration to a hardware
- added usage examples

Tomasz Stanislawski (5):
  [media] v4l: add support for selection api
  [media] v4l: add documentation for selection API
  [media] v4l: simulate old crop API using extended crop/compose API
  [media] v4l: fix copying ioctl results on failure
  [media] v4l: s5p-tv: mixer: add support for selection API

 Documentation/DocBook/media/constraints.png.b64    |  134 +
 Documentation/DocBook/media/selection.png.b64      | 2937 ++++++++++++++++++++
 Documentation/DocBook/media/v4l/common.xml         |    4 +-
 Documentation/DocBook/media/v4l/selection-api.xml  |  278 ++
 Documentation/DocBook/media/v4l/v4l2.xml           |    1 +
 .../DocBook/media/v4l/vidioc-g-selection.xml       |  283 ++
 drivers/media/video/s5p-tv/mixer.h                 |   14 +-
 drivers/media/video/s5p-tv/mixer_grp_layer.c       |  157 +-
 drivers/media/video/s5p-tv/mixer_video.c           |  329 ++-
 drivers/media/video/s5p-tv/mixer_vp_layer.c        |  108 +-
 drivers/media/video/v4l2-compat-ioctl32.c          |    2 +
 drivers/media/video/v4l2-ioctl.c                   |  116 +-
 include/linux/videodev2.h                          |   27 +
 include/media/v4l2-ioctl.h                         |    4 +
 14 files changed, 4186 insertions(+), 208 deletions(-)
 create mode 100644 Documentation/DocBook/media/constraints.png.b64
 create mode 100644 Documentation/DocBook/media/selection.png.b64
 create mode 100644 Documentation/DocBook/media/v4l/selection-api.xml
 create mode 100644 Documentation/DocBook/media/v4l/vidioc-g-selection.xml

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1.7.6