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/* SPDX-License-Identifier: GPL-2.0 */
/*
* These are the MPEG2 state controls for use with stateless MPEG-2
* codec drivers.
*
* It turns out that these structs are not stable yet and will undergo
* more changes. So keep them private until they are stable and ready to
* become part of the official public API.
*/
#ifndef _MPEG2_CTRLS_H_
#define _MPEG2_CTRLS_H_
#define V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS (V4L2_CID_CODEC_BASE+250)
#define V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION (V4L2_CID_CODEC_BASE+251)
/* enum v4l2_ctrl_type type values */
#define V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS 0x0103
#define V4L2_CTRL_TYPE_MPEG2_QUANTISATION 0x0104
#define V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE 0x0001
struct v4l2_mpeg2_sequence {
/* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence header */
__u16 horizontal_size;
__u16 vertical_size;
__u32 vbv_buffer_size;
/* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence extension */
__u16 profile_and_level_indication;
__u8 chroma_format;
__u32 flags;
};
#define V4L2_MPEG2_PIC_CODING_TYPE_I 1
#define V4L2_MPEG2_PIC_CODING_TYPE_P 2
#define V4L2_MPEG2_PIC_CODING_TYPE_B 3
#define V4L2_MPEG2_PIC_CODING_TYPE_D 4
#define V4L2_MPEG2_PIC_TOP_FIELD 0x1
#define V4L2_MPEG2_PIC_BOTTOM_FIELD 0x2
#define V4L2_MPEG2_PIC_FRAME 0x3
#define V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST 0x0001
#define V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT 0x0002
#define V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV 0x0004
#define V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE 0x0008
#define V4L2_MPEG2_PIC_FLAG_INTRA_VLC 0x0010
#define V4L2_MPEG2_PIC_FLAG_ALT_SCAN 0x0020
#define V4L2_MPEG2_PIC_FLAG_REPEAT_FIRST 0x0040
#define V4L2_MPEG2_PIC_FLAG_PROGRESSIVE 0x0080
struct v4l2_mpeg2_picture {
/* ISO/IEC 13818-2, ITU-T Rec. H.262: Picture header */
__u8 picture_coding_type;
/* ISO/IEC 13818-2, ITU-T Rec. H.262: Picture coding extension */
__u8 f_code[2][2];
__u8 intra_dc_precision;
__u8 picture_structure;
__u32 flags;
};
struct v4l2_ctrl_mpeg2_slice_params {
__u32 bit_size;
__u32 data_bit_offset;
__u64 backward_ref_ts;
__u64 forward_ref_ts;
struct v4l2_mpeg2_sequence sequence;
struct v4l2_mpeg2_picture picture;
/* ISO/IEC 13818-2, ITU-T Rec. H.262: Slice */
__u32 quantiser_scale_code;
};
struct v4l2_ctrl_mpeg2_quantisation {
/* ISO/IEC 13818-2, ITU-T Rec. H.262: Quant matrix extension */
__u8 intra_quantiser_matrix[64];
__u8 non_intra_quantiser_matrix[64];
__u8 chroma_intra_quantiser_matrix[64];
__u8 chroma_non_intra_quantiser_matrix[64];
};
#endif
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