include/media/vp8-ctrls.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * These are the VP8 state controls for use with stateless VP8
   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 _VP8_CTRLS_H_
  12 #define _VP8_CTRLS_H_
  13
  14 #include <linux/types.h>
  15
  16 #define V4L2_PIX_FMT_VP8_FRAME v4l2_fourcc('V', 'P', '8', 'F')
  17
  18 #define V4L2_CID_MPEG_VIDEO_VP8_FRAME_HEADER (V4L2_CID_CODEC_BASE + 2000)
  19 #define V4L2_CTRL_TYPE_VP8_FRAME_HEADER 0x301
  20
  21 #define V4L2_VP8_SEGMENT_HEADER_FLAG_ENABLED              0x01
  22 #define V4L2_VP8_SEGMENT_HEADER_FLAG_UPDATE_MAP           0x02
  23 #define V4L2_VP8_SEGMENT_HEADER_FLAG_UPDATE_FEATURE_DATA  0x04
  24 #define V4L2_VP8_SEGMENT_HEADER_FLAG_DELTA_VALUE_MODE     0x08
  25
  26 struct v4l2_vp8_segment_header {
  27         __s8 quant_update[4];
  28         __s8 lf_update[4];
  29         __u8 segment_probs[3];
  30         __u8 padding;
  31         __u32 flags;
  32 };
  33
  34 #define V4L2_VP8_LF_HEADER_ADJ_ENABLE   0x01
  35 #define V4L2_VP8_LF_HEADER_DELTA_UPDATE 0x02
  36 #define V4L2_VP8_LF_FILTER_TYPE_SIMPLE  0x04
  37 struct v4l2_vp8_loopfilter_header {
  38         __s8 ref_frm_delta[4];
  39         __s8 mb_mode_delta[4];
  40         __u8 sharpness_level;
  41         __u8 level;
  42         __u16 padding;
  43         __u32 flags;
  44 };
  45
  46 struct v4l2_vp8_quantization_header {
  47         __u8 y_ac_qi;
  48         __s8 y_dc_delta;
  49         __s8 y2_dc_delta;
  50         __s8 y2_ac_delta;
  51         __s8 uv_dc_delta;
  52         __s8 uv_ac_delta;
  53         __u16 padding;
  54 };
  55
  56 #define V4L2_VP8_COEFF_PROB_CNT 11
  57 #define V4L2_VP8_MV_PROB_CNT 19
  58 struct v4l2_vp8_entropy_header {
  59         __u8 coeff_probs[4][8][3][V4L2_VP8_COEFF_PROB_CNT];
  60         __u8 y_mode_probs[4];
  61         __u8 uv_mode_probs[3];
  62         __u8 mv_probs[2][V4L2_VP8_MV_PROB_CNT];
  63         __u8 padding[3];
  64 };
  65
  66 struct v4l2_vp8_entropy_coder_state {
  67         __u8 range;
  68         __u8 value;
  69         __u8 bit_count;
  70         __u8 padding;
  71 };
  72
  73 #define V4L2_VP8_FRAME_HEADER_FLAG_KEY_FRAME            0x01
  74 #define V4L2_VP8_FRAME_HEADER_FLAG_EXPERIMENTAL         0x02
  75 #define V4L2_VP8_FRAME_HEADER_FLAG_SHOW_FRAME           0x04
  76 #define V4L2_VP8_FRAME_HEADER_FLAG_MB_NO_SKIP_COEFF     0x08
  77 #define V4L2_VP8_FRAME_HEADER_FLAG_SIGN_BIAS_GOLDEN     0x10
  78 #define V4L2_VP8_FRAME_HEADER_FLAG_SIGN_BIAS_ALT        0x20
  79
  80 #define VP8_FRAME_IS_KEY_FRAME(hdr) \
  81         (!!((hdr)->flags & V4L2_VP8_FRAME_HEADER_FLAG_KEY_FRAME))
  82
  83 struct v4l2_ctrl_vp8_frame_header {
  84         struct v4l2_vp8_segment_header segment_header;
  85         struct v4l2_vp8_loopfilter_header lf_header;
  86         struct v4l2_vp8_quantization_header quant_header;
  87         struct v4l2_vp8_entropy_header entropy_header;
  88         struct v4l2_vp8_entropy_coder_state coder_state;
  89
  90         __u16 width;
  91         __u16 height;
  92
  93         __u8 horizontal_scale;
  94         __u8 vertical_scale;
  95
  96         __u8 version;
  97         __u8 prob_skip_false;
  98         __u8 prob_intra;
  99         __u8 prob_last;
 100         __u8 prob_gf;
 101         __u8 num_dct_parts;
 102
 103         __u32 first_part_size;
 104         __u32 first_part_header_bits;
 105         __u32 dct_part_sizes[8];
 106
 107         __u64 last_frame_ts;
 108         __u64 golden_frame_ts;
 109         __u64 alt_frame_ts;
 110
 111         __u64 flags;
 112 };
 113
 114 #endif