[PATCH v2 3/4] media: uapi: hevc: Add segment address field

[Jernej Skrabec]

If HEVC frame consists of multiple slices, segment address has to be
known in order to properly decode it.

Add segment address field to slice parameters.

Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx>
---
 Documentation/media/uapi/v4l/ext-ctrls-codec.rst | 5 ++++-
 include/media/hevc-ctrls.h                       | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
index aab1451e54d4..5415d5babcc2 100644
--- a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
+++ b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
@@ -3975,6 +3975,9 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
     * - __u32
       - ``data_bit_offset``
       - Offset (in bits) to the video data in the current slice data.
+    * - __u32
+      - ``slice_segment_addr``
+      -
     * - __u8
       - ``nal_unit_type``
       -
@@ -4052,7 +4055,7 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
       - ``num_rps_poc_lt_curr``
       - The number of reference pictures in the long-term set.
     * - __u8
-      - ``padding[7]``
+      - ``padding[5]``
       - Applications and drivers must set this to zero.
     * - struct :c:type:`v4l2_hevc_dpb_entry`
       - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h
index 1592e52c3614..3e2e32098312 100644
--- a/include/media/hevc-ctrls.h
+++ b/include/media/hevc-ctrls.h
@@ -167,6 +167,9 @@ struct v4l2_ctrl_hevc_slice_params {
 	__u32	bit_size;
 	__u32	data_bit_offset;
 
+	/* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
+	__u32	slice_segment_addr;
+
 	/* ISO/IEC 23008-2, ITU-T Rec. H.265: NAL unit header */
 	__u8	nal_unit_type;
 	__u8	nuh_temporal_id_plus1;
@@ -200,7 +203,7 @@ struct v4l2_ctrl_hevc_slice_params {
 	__u8	num_rps_poc_st_curr_after;
 	__u8	num_rps_poc_lt_curr;
 
-	__u8	padding;
+	__u8	padding[5];
 
 	/* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
 	struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
-- 
2.24.0