STRUCT V4L2_CTRL_MPEG2_SEQUENCE(9)

💖 struct v4l2_ctrl_mpeg2_sequence(9) 💖

okay bestie, welcome to the Kernel API Manual page for the MPEG-2 sequence header struct — she's niche, she's precise, and she's literally all about matching the spec. 🎀

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🌸 NAME 🌸

struct v4l2_ctrl_mpeg2_sequence — MPEG-2 sequence header

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✨ SYNOPSIS ✨

the struct is giving exactly this, no cap:

       struct v4l2_ctrl_mpeg2_sequence {
           __u16 horizontal_size;
           __u16 vertical_size;
           __u32 vbv_buffer_size;
           __u16 profile_and_level_indication;
           __u8 chroma_format;
           __u8 flags;
        };

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🎀 Members 🎀

• horizontal_size — a combination of the elements horizontal_size_value and horizontal_size_extension. 💅
• vertical_size — a combination of the elements vertical_size_value and vertical_size_extension. ✨
• vbv_buffer_size — a combination of the elements vbv_buffer_size_value and vbv_buffer_size_extension. 🫶
• profile_and_level_indication — see the MPEG-2 specification. 👀
• chroma_format — see the MPEG-2 specification. 🌈
• flags — see V4L2_MPEG2_SEQ_FLAG_{}. 🚩

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💅 Description 💅

bestie, the way this is so tidy: all the members on this structure match the sequence header and sequence extension syntaxes as specified by the MPEG-2 specification. periodt. 💖

the fields horizontal_size, vertical_size and vbv_buffer_size are a combination of the respective _value and extension syntax elements, as described in section 6.3.3 "Sequence header". literally that's the assignment. 🔥

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🦋 SEE ALSO 🦋

the whole squad, iykyk:

• Kernel file: ./include/uapi/linux/v4l2-controls.h
• enum v4l2_mpeg_video_av1_profile(9)
• enum v4l2_mpeg_video_av1_level(9)
• enum v4l2_stateless_h264_decode_mode(9)
• enum v4l2_stateless_h264_start_code(9)
• struct v4l2_ctrl_h264_sps(9)
• struct v4l2_ctrl_h264_pps(9)
• struct v4l2_ctrl_h264_scaling_matrix(9)
• struct v4l2_ctrl_h264_pred_weights(9)
• struct v4l2_h264_reference(9)
• struct v4l2_ctrl_h264_slice_params(9)
• struct v4l2_h264_dpb_entry(9)
• struct v4l2_ctrl_h264_decode_params(9)
• struct v4l2_ctrl_fwht_params(9)
• struct v4l2_vp8_segment(9)
• struct v4l2_vp8_loop_filter(9)
• struct v4l2_vp8_quantization(9)
• struct v4l2_vp8_entropy(9)
• struct v4l2_vp8_entropy_coder_state(9)
• struct v4l2_ctrl_vp8_frame(9)
• struct v4l2_ctrl_mpeg2_picture(9)
• struct v4l2_ctrl_mpeg2_quantisation(9)
• struct v4l2_ctrl_hevc_sps(9)
• struct v4l2_ctrl_hevc_pps(9)
• struct v4l2_hevc_dpb_entry(9)
• struct v4l2_hevc_pred_weight_table(9)
• struct v4l2_ctrl_hevc_slice_params(9)
• struct v4l2_ctrl_hevc_decode_params(9)
• struct v4l2_ctrl_hevc_scaling_matrix(9)
• struct v4l2_vp9_loop_filter(9)
• struct v4l2_vp9_quantization(9)
• struct v4l2_vp9_segmentation(9)
• struct v4l2_ctrl_vp9_frame(9)
• struct v4l2_vp9_mv_probs(9)
• struct v4l2_ctrl_vp9_compressed_hdr(9)
• struct v4l2_ctrl_av1_sequence(9)
• struct v4l2_ctrl_av1_tile_group_entry(9)
• enum v4l2_av1_warp_model(9)
• enum v4l2_av1_reference_frame(9)
• struct v4l2_av1_global_motion(9)
• enum v4l2_av1_frame_restoration_type(9)
• struct v4l2_av1_loop_restoration(9)
• struct v4l2_av1_cdef(9)
• enum v4l2_av1_segment_feature(9)
• struct v4l2_av1_segmentation(9)
• struct v4l2_av1_loop_filter(9)
• struct v4l2_av1_quantization(9)
• struct v4l2_av1_tile_info(9)
• enum v4l2_av1_frame_type(9)
• enum v4l2_av1_interpolation_filter(9)
• enum v4l2_av1_tx_mode(9)
• struct v4l2_ctrl_av1_frame(9)
• struct v4l2_ctrl_av1_film_grain(9)

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mwah bestie 💋 — this page’s source/version is ./include/uapi/linux, dated October 2026, and the footer repeats the title struct v4l2...eg2_sequence(9). 🫶