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82 lines
2.3 KiB
82 lines
2.3 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* These are the MPEG2 state controls for use with stateless MPEG-2 |
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* codec drivers. |
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* |
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* It turns out that these structs are not stable yet and will undergo |
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* more changes. So keep them private until they are stable and ready to |
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* become part of the official public API. |
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*/ |
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#ifndef _MPEG2_CTRLS_H_ |
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#define _MPEG2_CTRLS_H_ |
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#define V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS (V4L2_CID_CODEC_BASE+250) |
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#define V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION (V4L2_CID_CODEC_BASE+251) |
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/* enum v4l2_ctrl_type type values */ |
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#define V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS 0x0103 |
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#define V4L2_CTRL_TYPE_MPEG2_QUANTIZATION 0x0104 |
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#define V4L2_MPEG2_PICTURE_CODING_TYPE_I 1 |
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#define V4L2_MPEG2_PICTURE_CODING_TYPE_P 2 |
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#define V4L2_MPEG2_PICTURE_CODING_TYPE_B 3 |
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#define V4L2_MPEG2_PICTURE_CODING_TYPE_D 4 |
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struct v4l2_mpeg2_sequence { |
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/* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence header */ |
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__u16 horizontal_size; |
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__u16 vertical_size; |
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__u32 vbv_buffer_size; |
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/* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence extension */ |
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__u16 profile_and_level_indication; |
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__u8 progressive_sequence; |
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__u8 chroma_format; |
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}; |
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struct v4l2_mpeg2_picture { |
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/* ISO/IEC 13818-2, ITU-T Rec. H.262: Picture header */ |
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__u8 picture_coding_type; |
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/* ISO/IEC 13818-2, ITU-T Rec. H.262: Picture coding extension */ |
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__u8 f_code[2][2]; |
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__u8 intra_dc_precision; |
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__u8 picture_structure; |
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__u8 top_field_first; |
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__u8 frame_pred_frame_dct; |
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__u8 concealment_motion_vectors; |
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__u8 q_scale_type; |
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__u8 intra_vlc_format; |
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__u8 alternate_scan; |
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__u8 repeat_first_field; |
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__u16 progressive_frame; |
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}; |
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struct v4l2_ctrl_mpeg2_slice_params { |
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__u32 bit_size; |
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__u32 data_bit_offset; |
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__u64 backward_ref_ts; |
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__u64 forward_ref_ts; |
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struct v4l2_mpeg2_sequence sequence; |
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struct v4l2_mpeg2_picture picture; |
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/* ISO/IEC 13818-2, ITU-T Rec. H.262: Slice */ |
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__u32 quantiser_scale_code; |
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}; |
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struct v4l2_ctrl_mpeg2_quantization { |
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/* ISO/IEC 13818-2, ITU-T Rec. H.262: Quant matrix extension */ |
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__u8 load_intra_quantiser_matrix; |
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__u8 load_non_intra_quantiser_matrix; |
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__u8 load_chroma_intra_quantiser_matrix; |
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__u8 load_chroma_non_intra_quantiser_matrix; |
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__u8 intra_quantiser_matrix[64]; |
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__u8 non_intra_quantiser_matrix[64]; |
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__u8 chroma_intra_quantiser_matrix[64]; |
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__u8 chroma_non_intra_quantiser_matrix[64]; |
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}; |
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#endif
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