root/drivers/staging/media/tegra-vde/uapi.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /* Copyright (C) 2016-2017 Dmitry Osipenko <digetx@gmail.com> */
   3 #ifndef _UAPI_TEGRA_VDE_H_
   4 #define _UAPI_TEGRA_VDE_H_
   5 
   6 #include <linux/types.h>
   7 #include <asm/ioctl.h>
   8 
   9 #define FLAG_B_FRAME            0x1
  10 #define FLAG_REFERENCE          0x2
  11 
  12 struct tegra_vde_h264_frame {
  13         __s32 y_fd;
  14         __s32 cb_fd;
  15         __s32 cr_fd;
  16         __s32 aux_fd;
  17         __u32 y_offset;
  18         __u32 cb_offset;
  19         __u32 cr_offset;
  20         __u32 aux_offset;
  21         __u32 frame_num;
  22         __u32 flags;
  23 
  24         // Must be zero'ed
  25         __u32 reserved[6];
  26 };
  27 
  28 struct tegra_vde_h264_decoder_ctx {
  29         __s32 bitstream_data_fd;
  30         __u32 bitstream_data_offset;
  31 
  32         __u64 dpb_frames_ptr;
  33         __u32 dpb_frames_nb;
  34         __u32 dpb_ref_frames_with_earlier_poc_nb;
  35 
  36         // SPS
  37         __u32 baseline_profile;
  38         __u32 level_idc;
  39         __u32 log2_max_pic_order_cnt_lsb;
  40         __u32 log2_max_frame_num;
  41         __u32 pic_order_cnt_type;
  42         __u32 direct_8x8_inference_flag;
  43         __u32 pic_width_in_mbs;
  44         __u32 pic_height_in_mbs;
  45 
  46         // PPS
  47         __u32 pic_init_qp;
  48         __u32 deblocking_filter_control_present_flag;
  49         __u32 constrained_intra_pred_flag;
  50         __u32 chroma_qp_index_offset;
  51         __u32 pic_order_present_flag;
  52 
  53         // Slice header
  54         __u32 num_ref_idx_l0_active_minus1;
  55         __u32 num_ref_idx_l1_active_minus1;
  56 
  57         // Must be zero'ed
  58         __u32 reserved[11];
  59 };
  60 
  61 #define VDE_IOCTL_BASE                  ('v' + 0x20)
  62 
  63 #define VDE_IO(nr)                      _IO(VDE_IOCTL_BASE, nr)
  64 #define VDE_IOR(nr, type)               _IOR(VDE_IOCTL_BASE, nr, type)
  65 #define VDE_IOW(nr, type)               _IOW(VDE_IOCTL_BASE, nr, type)
  66 #define VDE_IOWR(nr, type)              _IOWR(VDE_IOCTL_BASE, nr, type)
  67 
  68 #define TEGRA_VDE_DECODE_H264           0x00
  69 
  70 #define TEGRA_VDE_IOCTL_DECODE_H264     \
  71         VDE_IOW(TEGRA_VDE_DECODE_H264, struct tegra_vde_h264_decoder_ctx)
  72 
  73 #endif // _UAPI_TEGRA_VDE_H_