media: uapi: Add hevc ctrls for WPP decoding

WPP can allow greater parallelism within the decode, but needs
offset information to be passed in.

Adds num_entry_point_offsets and entry_point_offset_minus1 to
v4l2_ctrl_hevc_slice_params.

This is based on Jernej Skrabec's patches for cedrus which
implement the same feature.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h
index 0ba7735..9c976b3 100644 (file)
--- a/include/media/hevc-ctrls.h
+++ b/include/media/hevc-ctrls.h
@@ -170,6 +170,7 @@ struct v4l2_ctrl_hevc_slice_params {
 
        /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
        __u32   slice_segment_addr;
+       __u32   num_entry_point_offsets;
 
        /* ISO/IEC 23008-2, ITU-T Rec. H.265: NAL unit header */
        __u8    nal_unit_type;
@@ -204,7 +205,9 @@ struct v4l2_ctrl_hevc_slice_params {
        __u8    num_rps_poc_st_curr_after;
        __u8    num_rps_poc_lt_curr;
 
-       __u8    padding[5];
+       __u8    padding;
+
+       __u32   entry_point_offset_minus1[256];
 
        /* 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];