target/linux/bcm27xx/patches-5.4/950-0504-media-uapi-Add-hevc-ctrls-for-WPP-decoding.patch

   1 From 6a42d17668699234bfa2d459e29cc2732e59759b Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Mon, 23 Mar 2020 19:00:17 +0000
   4 Subject: [PATCH] media: uapi: Add hevc ctrls for WPP decoding
   5
   6 WPP can allow greater parallelism within the decode, but needs
   7 offset information to be passed in.
   8
   9 Adds num_entry_point_offsets and entry_point_offset_minus1 to
  10 v4l2_ctrl_hevc_slice_params.
  11
  12 This is based on Jernej Skrabec's patches for cedrus which
  13 implement the same feature.
  14
  15 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  16 ---
  17  include/media/hevc-ctrls.h | 5 ++++-
  18  1 file changed, 4 insertions(+), 1 deletion(-)
  19
  20 --- a/include/media/hevc-ctrls.h
  21 +++ b/include/media/hevc-ctrls.h
  22 @@ -170,6 +170,7 @@ struct v4l2_ctrl_hevc_slice_params {
  23
  24         /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
  25         __u32   slice_segment_addr;
  26 +       __u32   num_entry_point_offsets;
  27
  28         /* ISO/IEC 23008-2, ITU-T Rec. H.265: NAL unit header */
  29         __u8    nal_unit_type;
  30 @@ -204,7 +205,9 @@ struct v4l2_ctrl_hevc_slice_params {
  31         __u8    num_rps_poc_st_curr_after;
  32         __u8    num_rps_poc_lt_curr;
  33
  34 -       __u8    padding[5];
  35 +       __u8    padding;
  36 +
  37 +       __u32   entry_point_offset_minus1[256];
  38
  39         /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
  40         struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];