[vicodec,v4,0/3] Add support to more pixel formats in vicodec

Message

Dafna Hirschfeld Nov. 15, 2018, 11:23 a.m. UTC

The new supported formats are
V4L2_PIX_FMT_GREY, V4L2_PIX_FMT_ARGB32, V4L2_PIX_FMT_ABGR32.

The returned encoded format is chaned to support various numbers
of planes instead of assuming 3 planes.

The first patch adds new fields to structs.
The second patch adds support for V4L2_PIX_FMT_GREY.
The third patch adds support for V4L2_PIX_FMT_ARGB32, V4L2_PIX_FMT_ABGR32.

The code used to test this patch is https://github.com/kamomil/outreachy
The script I used to test greyscale support:
https://github.com/kamomil/outreachy/blob/master/greyscale-full-example.sh 
The script I used to test argb/abgr:
https://github.com/kamomil/outreachy/blob/master/argb-and-abgr-full-example.sh

Changes from v3:

patch 1,3: - no change

patch 2:
- replace the 2-bit flag FWHT_FL_COMPONENTS_NUM_BIT[01] with GENMASK
- add TODO comment - handle the case where the encoded stream is different format
than the decoded
- allocate maximal space for the V4L2_PIX_FMT_FWHT format

with the test 'flags & FWHT_FL_COMPONENTS_NUM_BIT[01]'

Dafna Hirschfeld (3):
  media: vicodec: prepare support for various number of planes
  media: vicodec: Add support of greyscale format
  media: vicodec: Add support for 4 planes formats

 drivers/media/platform/vicodec/codec-fwht.c   |  73 +++++++----
 drivers/media/platform/vicodec/codec-fwht.h   |  15 ++-
 .../media/platform/vicodec/codec-v4l2-fwht.c  | 123 +++++++++++++-----
 .../media/platform/vicodec/codec-v4l2-fwht.h  |   3 +-
 drivers/media/platform/vicodec/vicodec-core.c |  35 ++++-
 5 files changed, 182 insertions(+), 67 deletions(-)