1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * These are the MPEG2 state controls for use with stateless MPEG-2 4 * codec drivers. 5 * 6 * It turns out that these structs are not stable yet and will undergo 7 * more changes. So keep them private until they are stable and ready to 8 * become part of the official public API. 9 */ 10 11 #ifndef _MPEG2_CTRLS_H_ 12 #define _MPEG2_CTRLS_H_ 13 14 #define V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS (V4L2_CID_CODEC_BASE+250) 15 #define V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION (V4L2_CID_CODEC_BASE+251) 16 17 /* enum v4l2_ctrl_type type values */ 18 #define V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS 0x0103 19 #define V4L2_CTRL_TYPE_MPEG2_QUANTIZATION 0x0104 20 21 #define V4L2_MPEG2_PICTURE_CODING_TYPE_I 1 22 #define V4L2_MPEG2_PICTURE_CODING_TYPE_P 2 23 #define V4L2_MPEG2_PICTURE_CODING_TYPE_B 3 24 #define V4L2_MPEG2_PICTURE_CODING_TYPE_D 4 25 26 struct v4l2_mpeg2_sequence { 27 /* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence header */ 28 __u16 horizontal_size; 29 __u16 vertical_size; 30 __u32 vbv_buffer_size; 31 32 /* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence extension */ 33 __u16 profile_and_level_indication; 34 __u8 progressive_sequence; 35 __u8 chroma_format; 36 }; 37 38 struct v4l2_mpeg2_picture { 39 /* ISO/IEC 13818-2, ITU-T Rec. H.262: Picture header */ 40 __u8 picture_coding_type; 41 42 /* ISO/IEC 13818-2, ITU-T Rec. H.262: Picture coding extension */ 43 __u8 f_code[2][2]; 44 __u8 intra_dc_precision; 45 __u8 picture_structure; 46 __u8 top_field_first; 47 __u8 frame_pred_frame_dct; 48 __u8 concealment_motion_vectors; 49 __u8 q_scale_type; 50 __u8 intra_vlc_format; 51 __u8 alternate_scan; 52 __u8 repeat_first_field; 53 __u16 progressive_frame; 54 }; 55 56 struct v4l2_ctrl_mpeg2_slice_params { 57 __u32 bit_size; 58 __u32 data_bit_offset; 59 __u64 backward_ref_ts; 60 __u64 forward_ref_ts; 61 62 struct v4l2_mpeg2_sequence sequence; 63 struct v4l2_mpeg2_picture picture; 64 65 /* ISO/IEC 13818-2, ITU-T Rec. H.262: Slice */ 66 __u32 quantiser_scale_code; 67 }; 68 69 struct v4l2_ctrl_mpeg2_quantization { 70 /* ISO/IEC 13818-2, ITU-T Rec. H.262: Quant matrix extension */ 71 __u8 load_intra_quantiser_matrix; 72 __u8 load_non_intra_quantiser_matrix; 73 __u8 load_chroma_intra_quantiser_matrix; 74 __u8 load_chroma_non_intra_quantiser_matrix; 75 76 __u8 intra_quantiser_matrix[64]; 77 __u8 non_intra_quantiser_matrix[64]; 78 __u8 chroma_intra_quantiser_matrix[64]; 79 __u8 chroma_non_intra_quantiser_matrix[64]; 80 }; 81 82 #endif 83