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Subject[RFC 07/12] media: uapi: h264: Add DPB entry field reference flags
Date
Add DPB entry flags to help indicate when a reference frame is a field picture
and how the DPB entry is referenced, top or bottom field or full frame.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
Documentation/media/uapi/v4l/ext-ctrls-codec.rst | 12 ++++++++++++
include/media/h264-ctrls.h | 4 ++++
2 files changed, 16 insertions(+)

diff --git a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
index bc5dd8e76567..eb6c32668ad7 100644
--- a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
+++ b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
@@ -2022,6 +2022,18 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
* - ``V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM``
- 0x00000004
- The DPB entry is a long term reference frame
+ * - ``V4L2_H264_DPB_ENTRY_FLAG_FIELD_PICTURE``
+ - 0x00000008
+ - The DPB entry is a field picture
+ * - ``V4L2_H264_DPB_ENTRY_FLAG_REF_TOP``
+ - 0x00000010
+ - The DPB entry is a top field reference
+ * - ``V4L2_H264_DPB_ENTRY_FLAG_REF_BOTTOM``
+ - 0x00000020
+ - The DPB entry is a bottom field reference
+ * - ``V4L2_H264_DPB_ENTRY_FLAG_REF_FRAME``
+ - 0x00000030
+ - The DPB entry is a reference frame

``V4L2_CID_MPEG_VIDEO_H264_DECODE_MODE (enum)``
Specifies the decoding mode to use. Currently exposes slice-based and
diff --git a/include/media/h264-ctrls.h b/include/media/h264-ctrls.h
index e877bf1d537c..76020ebd1e6c 100644
--- a/include/media/h264-ctrls.h
+++ b/include/media/h264-ctrls.h
@@ -185,6 +185,10 @@ struct v4l2_ctrl_h264_slice_params {
#define V4L2_H264_DPB_ENTRY_FLAG_VALID 0x01
#define V4L2_H264_DPB_ENTRY_FLAG_ACTIVE 0x02
#define V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM 0x04
+#define V4L2_H264_DPB_ENTRY_FLAG_FIELD_PICTURE 0x08
+#define V4L2_H264_DPB_ENTRY_FLAG_REF_TOP 0x10
+#define V4L2_H264_DPB_ENTRY_FLAG_REF_BOTTOM 0x20
+#define V4L2_H264_DPB_ENTRY_FLAG_REF_FRAME 0x30

struct v4l2_h264_dpb_entry {
__u64 reference_ts;
--
2.17.1
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