Le 22/02/2021 à 17:16, John Cox a écrit :
The HEVC HANTRO driver needs to know the number of bits to skip at the beginning of the slice header. That is a hardware specific requirement so create a dedicated control that this purpose. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx> --- include/uapi/linux/hantro-v4l2-controls.h | 20 ++++++++++++++++++++ include/uapi/linux/v4l2-controls.h | 5 +++++ 2 files changed, 25 insertions(+) create mode 100644 include/uapi/linux/hantro-v4l2-controls.h diff --git a/include/uapi/linux/hantro-v4l2-controls.h b/include/uapi/linux/hantro-v4l2-controls.h new file mode 100644 index 000000000000..30b1999b7af3 --- /dev/null +++ b/include/uapi/linux/hantro-v4l2-controls.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ + +#ifndef __UAPI_HANTRO_V4L2_CONYTROLS_H__ +#define __UAPI_HANTRO_V4L2_CONYTROLS_H__ + +#include <linux/v4l2-controls.h> +#include <media/hevc-ctrls.h> + +#define V4L2_CID_HANTRO_HEVC_EXTRA_DECODE_PARAMS (V4L2_CID_USER_HANTRO_BASE + 0) + +/** + * struct hantro_hevc_extra_decode_params - extra decode parameters for hantro driver + * @hevc_hdr_skip_lenght: header first bits offset + */ +struct hantro_hevc_extra_decode_params { + __u32 hevc_hdr_skip_lenght; + __u8 padding[4]; +};Can you clarify how hevc_hdr_skip_length differs from v4l2_ctrl_hevc_slice_params.data_bit_offset? At first sight they would appear to be very similar.
hevc_hdr_skip_length is the difference between the start positions of 2 nals. v4l2_ctrl_hevc_slice_params.data_bit_offset is the offset of the data in the nal. Benjamin
Regards John Cox+#endif diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 039c0d7add1b..ced7486c7f46 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -209,6 +209,11 @@ enum v4l2_colorfx { * We reserve 128 controls for this driver. */ #define V4L2_CID_USER_CCS_BASE (V4L2_CID_USER_BASE + 0x10f0) +/* + * The base for HANTRO driver controls. + * We reserve 32 controls for this driver. + */ +#define V4L2_CID_USER_HANTRO_BASE (V4L2_CID_USER_BASE + 0x1170) /* MPEG-class control IDs */ /* The MPEG controls are applicable to all codec controls
