media: uapi: HEVC: Add SEI pic struct flags

The possible values for the field_pic field in the v4l2_hevc_dpb_entry
structure are defined in the table D.2 in HEVC specification section D.3.3.
Add flags and documentation for each of them.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Acked-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Tested-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 3dfb81a..8ba16e8 100644 (file)
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -3218,6 +3218,7 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
     * - __u8
       - ``field_pic``
       - Whether the reference is a field picture or a frame.
+        See :ref:`HEVC dpb field pic Flags <hevc_dpb_field_pic_flags>`
     * - __u16
       - ``pic_order_cnt[2]``
       - The picture order count of the reference. Only the first element of the
@@ -3231,6 +3232,59 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
 
     \normalsize
 
+.. _hevc_dpb_field_pic_flags:
+
+``HEVC dpb field pic Flags``
+
+.. raw:: latex
+
+    \scriptsize
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME``
+      - 0
+      - (progressive) Frame
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_FIELD``
+      - 1
+      - Top field
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_FIELD``
+      - 2
+      - Bottom field
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM``
+      - 3
+      - Top field, bottom field, in that order
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP``
+      - 4
+      - Bottom field, top field, in that order
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM_TOP``
+      - 5
+      - Top field, bottom field, top field repeated, in that order
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM``
+      - 6
+      - Bottom field, top field, bottom field repeated, in that order
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME_DOUBLING``
+      - 7
+      - Frame doubling
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME_TRIPLING``
+      - 8
+      - Frame tripling
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_PREVIOUS_BOTTOM``
+      - 9
+      - Top field paired with previous bottom field in output order
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_PREVIOUS_TOP``
+      - 10
+      - Bottom field paired with previous top field in output order
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_NEXT_BOTTOM``
+      - 11
+      - Top field paired with next bottom field in output order
+    * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_NEXT_TOP``
+      - 12
+      - Bottom field paired with next top field in output order
+
 .. c:type:: v4l2_hevc_pred_weight_table
 
 .. raw:: latex

diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h
index 01c1795..f3695ab 100644 (file)
--- a/include/media/hevc-ctrls.h
+++ b/include/media/hevc-ctrls.h
@@ -132,6 +132,20 @@ struct v4l2_ctrl_hevc_pps {
 
 #define V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE        0x01
 
+#define V4L2_HEVC_SEI_PIC_STRUCT_FRAME                         0
+#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_FIELD                     1
+#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_FIELD                  2
+#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM                    3
+#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP                    4
+#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM_TOP                        5
+#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM             6
+#define V4L2_HEVC_SEI_PIC_STRUCT_FRAME_DOUBLING                        7
+#define V4L2_HEVC_SEI_PIC_STRUCT_FRAME_TRIPLING                        8
+#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_PREVIOUS_BOTTOM    9
+#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_PREVIOUS_TOP    10
+#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_NEXT_BOTTOM                11
+#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_NEXT_TOP                12
+
 #define V4L2_HEVC_DPB_ENTRIES_NUM_MAX          16
 
 struct v4l2_hevc_dpb_entry {