include/media/v4l2-jpeg.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
7  * For reference, see JPEG ITU-T.81 (ISO/IEC 10918-1)
13 #include <linux/v4l2-controls.h>
19  * struct v4l2_jpeg_reference - reference into the JPEG buffer
24  * and length is the size of the segment parameters, excluding the marker code.
34  * struct v4l2_jpeg_frame_component_spec - frame component-specification
48  * struct v4l2_jpeg_frame_header - JPEG frame header
53  * @component: component-specification, see v4l2_jpeg_frame_component_spec
54  * @subsampling: decoded subsampling from component-specification
68  * struct v4l2_jpeg_scan_component_spec - scan component-specification
69  * @component_selector: Cs[j]
80  * struct v4l2_jpeg_scan_header - JPEG scan header
82  * @component: component-specification, see v4l2_jpeg_scan_component_spec
91  * enum v4l2_jpeg_app14_tf - APP14 transform flag
92  * According to Rec. ITU-T T.872 (06/2012) 6.5.3
93  * APP14 segment is for color encoding, it contains a transform flag,
99  * @V4L2_JPEG_APP14_TF_UNKNOWN: indicate app14 is not present
105 	V4L2_JPEG_APP14_TF_UNKNOWN	= -1,
109  * struct v4l2_jpeg_header - parsed JPEG header
125  * When this structure is passed to v4l2_jpeg_parse_header, the optional scan,