target/linux/bcm27xx/patches-5.4/950-0504-media-uapi-hevc-Add-segment-address-field.patch

   1 From 88eb3b015b6f61252fd214d39fc7fc0379ee0442 Mon Sep 17 00:00:00 2001
   2 From: Jernej Skrabec <jernej.skrabec@siol.net>
   3 Date: Fri, 13 Dec 2019 17:04:27 +0100
   4 Subject: [PATCH] media: uapi: hevc: Add segment address field
   5
   6 From https://patchwork.linuxtv.org/patch/60725/
   7 Changes requested, but mainly docs.
   8
   9 If HEVC frame consists of multiple slices, segment address has to be
  10 known in order to properly decode it.
  11
  12 Add segment address field to slice parameters.
  13
  14 Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
  15 ---
  16  Documentation/media/uapi/v4l/ext-ctrls-codec.rst | 5 ++++-
  17  include/media/hevc-ctrls.h                       | 5 ++++-
  18  2 files changed, 8 insertions(+), 2 deletions(-)
  19
  20 --- a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
  21 +++ b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
  22 @@ -3969,6 +3969,9 @@ enum v4l2_mpeg_video_hevc_size_of_length
  23      * - __u32
  24        - ``data_bit_offset``
  25        - Offset (in bits) to the video data in the current slice data.
  26 +    * - __u32
  27 +      - ``slice_segment_addr``
  28 +      -
  29      * - __u8
  30        - ``nal_unit_type``
  31        -
  32 @@ -4046,7 +4049,7 @@ enum v4l2_mpeg_video_hevc_size_of_length
  33        - ``num_rps_poc_lt_curr``
  34        - The number of reference pictures in the long-term set.
  35      * - __u8
  36 -      - ``padding[7]``
  37 +      - ``padding[5]``
  38        - Applications and drivers must set this to zero.
  39      * - struct :c:type:`v4l2_hevc_dpb_entry`
  40        - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
  41 --- a/include/media/hevc-ctrls.h
  42 +++ b/include/media/hevc-ctrls.h
  43 @@ -167,6 +167,9 @@ struct v4l2_ctrl_hevc_slice_params {
  44         __u32   bit_size;
  45         __u32   data_bit_offset;
  46
  47 +       /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
  48 +       __u32   slice_segment_addr;
  49 +
  50         /* ISO/IEC 23008-2, ITU-T Rec. H.265: NAL unit header */
  51         __u8    nal_unit_type;
  52         __u8    nuh_temporal_id_plus1;
  53 @@ -200,7 +203,7 @@ struct v4l2_ctrl_hevc_slice_params {
  54         __u8    num_rps_poc_st_curr_after;
  55         __u8    num_rps_poc_lt_curr;
  56
  57 -       __u8    padding;
  58 +       __u8    padding[5];
  59
  60         /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
  61         struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];