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@leaveye 2025-06-13T10:59:53.000000Z 字数 11862 阅读 214

SS528 Codec 配置

hi3531d ss528 venc 配置过程

VENC的配置

简要说明

hi_mpi_venc_create_chn() 的参数

hi_mpi_venc_set_debreath_effect() 的参数

如果带宽小于 1000Kbps ，则启用去呼吸效应，其中 strength0=0、streanth1=16 。

附录：/umap/proc/

venc

  1. # cat /proc/umap/venc 
  3. [VENC] Version: [SS528V100V2.0.0.1 B020 Release], Build Time[May  3 2022, 10:26:14]
  6. ----------------------------------------module param--------------------------------------------------------------------
  7.      venc_buf_cache     frame_buf_recycle      venc_max_chn_num          high_profile
  8.                   0                     0                   128                     n
  10. ----------------------------------------venc chn attr 1-----------------------------------------------------------------
  11.       id   width  height  type  by_frame    sequence  left_bytes    left_frm  cur_packs  gop_mode  priority
  12.        0    1920    1080    96         y        1224           0           0          1  normal_p         0
  14. ----------------------------------------venc chn attr 2-----------------------------------------------------------------
  15.       id  started  src_frame_rate  dst_frame_rate    time_ref  pixel_format      pic_addr  wake_up_frame_cnt
  16.        0        y              -1              -1        5114        yvu420    0x6d719840                  1
  18. ----------------------------------------venc chn attr 3-----------------------------------------------------------------
  19.       id  composite_en  mosaic_en quality_level
  20.        0             n          n             1
  22. ----------------------------------------venc jpege attr-----------------------------------------------------------------
  23.       id      recv_mode        mpf_cnt     mpf0_width    mpf0_height     mpf1_width    mpf1_height
  25. ----------------------------------------venc chn recv state-------------------------------------------------------------
  26.       id       start    start_ex   recv_left    enc_left     jpeg_enc_mode
  27.        0           1           0           0           0               n/a
  29. ----------------------------------------venc vpss query-----------------------------------------------------------------
  30.       id       query    query_ok  query_lost     invalid        full     vb_fail  query_fail    info_err        stop
  31.        0        2448        2448           0           0           0           0           0           0           0
  33. ----------------------------------------venc send1----------------------------------------------------------------------
  34.       id  vpss_send  vpss_err  other_send  other_err       send    stop    full  crop_err  direct_send  size_err
  35.        0       2447         0           0          0       2447       0       0         0         2447         0
  37. ----------------------------------------venc send2----------------------------------------------------------------------
  38.       id    send_vgs    start_ok  start_fail  interrupt_ok  interrupt_fail     src_add     src_sub   dst_add   dst_sub
  39.        0           0           0           0             0               0           0           0         0         0
  41. ----------------------------------------venc pic queue state------------------------------------------------------------
  42.       id           free           busy            vgs        b_frame
  43.        0              6              0              0              0
  45. ----------------------------------------venc dcf/mpf queue state--------------------------------------------------------
  46.       id  thumb_free  thumb_busy   mpf0_free   mpf0_busy   mpf1_free   mpf1_busy
  47.        0           0           0           0           0           0           0
  49. ----------------------------------------venc channel info---------------------------------------------------------------
  50.       id     query  query_ok     start  start_ok    config  interrupt  chg_reso_lost  over_load  ring_skip  rc_skip
  51.        0     14487      2447      2447      1224      1224       1224              0          0          0     1223
  53. ----------------------------------------venc crop info------------------------------------------------------------------
  54.       id        crop_en              x              y          width         height
  55.        0              n              0              0              0              0
  57. ----------------------------------------roi info------------------------------------------------------------------------
  58.       id      type     index    roi_en    abs_qp    qp         x         y     width    height 
  60. ----------------------------------------jpeg roi info-------------------------------------------------------------------
  61.       id     index     level         x         y     width    height
  63. ----------------------------------------venc stream state---------------------------------------------------------------
  64.       id    free_cnt    busy_cnt    user_cnt    user_get   user_release   get_times    interval   frame_rate
  65.        0           1           0           0        1347           1347        1224       33419           30
  67. ----------------------------------------venc pts state------------------------------------------------------------------
  68.       id                 first_frame_pts                   cur_frame_pts
  69.        0                    189401506427                    189442275668
  71. ----------------------------------------venc svc state------------------------------------------------------------------
  72.       id  enable  base_reso_width  base_reso_height  rect_num               pts
  74. ----------------------------------------venc svc param------------------------------------------------------------------
  75.       id  fg_en  fg_rgn_param0  fg_rgn_param1  fg_rgn_param2  fg_rgn_param3  fg_rgn_param4   bg_rgn_param  act_rgn_param

rc

  1. # cat /proc/umap/rc
  4. [RC] Version: [SS528V100V2.0.0.1 B020 Release],Build Time[May  3 2022, 10:26:14]
  7. ----------------------------------------base param 1--------------------------------------------------------------------
  8.      id    gop  stats_time  src_frame_rate  dst_frame_rate  type   mode  bitrate(kbps)  i_qp  p_qp  b_qp
  9.       0     30           1              60              30    96   cvbr           1024   n/a   n/a   n/a
  11. ----------------------------------------base param 2--------------------------------------------------------------------
  12.      id  min_qp    max_qp  min_i_qp  max_i_qp      idr_en    qpmap_en  qpmap_mode 
  13.       0      22        47        20        47           y           n         n/a
  15. ----------------------------------------base param 3--------------------------------------------------------------------
  16.      id     long_term_stats_time    short_term_stats_time    long_term_max_bitrate    long_term_min_bitrate 
  17.       0                        1                        1                     1024                      256
  19. ----------------------------------------run common param 1--------------------------------------------------------------
  20.      id  row_qp_delta                 threshold_i(16)
  21.       0             1  [   0   0   0   0   3   3   5   5   8   8   8  15  15  20  25  25]
  23. ----------------------------------------run common param 2--------------------------------------------------------------
  24.      id  first_frame_start_qp            threshold_p(16)
  25.       0                    -1  [   0   0   0   0   3   3   5   5   8   8   8  15  15  20  25  25]
  27. ----------------------------------------run common param 3--------------------------------------------------------------
  28.      id      direction                 threshold_b(16)
  29.       0              8  [   0   0   0   0   3   3   5   5   8   8   8  15  15  20  25  25]
  31. ----------------------------------------run comm param 4----------------------------------------------------------------
  32.      id   lost   threshold   lost_mode   frame_gap
  33.       0      n    83886080      normal           0
  35. ----------------------------------------run comm param 5----------------------------------------------------------------
  36.      id   super_frame_mod   threshold_i   threshold_p   threshold_b   rc_priority   clear_stats
  37.       0              none        500000        500000        500000       bitrate             1
  39. ----------------------------------------run common param 6--------------------------------------------------------------
  40.      id      detect_scene_chg_en   adapt_insert_idr_frame_en
  41.       0                        y                           n
  43. ----------------------------------------fg protect info 1---------------------------------------------------------------
  44.      id  protect_en      direction                    threshold_p(16)
  45.       0           0              8  [   0   0   0   0   3   3   5   5   8   8   8  15  15  20  25  25]
  47. ----------------------------------------fg protect info 2---------------------------------------------------------------
  48.      id        gain         offset                    threshold_b(16)
  49.       0           8              8  [   0   0   0   0   3   3   5   5   8   8   8  15  15  20  25  25]
  51. ----------------------------------------gop mode attr-------------------------------------------------------------------
  52.      id    gop_mode  ip_qp_delta  sp_interval  sp_qp_delta  b_frame_num   b_qp_delta  bg_interval  vi_qp_delta
  53.       0    normal_p            2          n/a          n/a          n/a          n/a          n/a          n/a
  55. ----------------------------------------run cbr param-------------------------------------------------------------------
  56.      id  min_i_proportion  max_i_proportion  max_qp  min_qp  max_i_qp  min_i_qp  max_reencode_times
  58. ----------------------------------------run vbr common param------------------------------------------------------------
  59.      id  chg_pos  min_i_proportion  max_i_proportion  max_qp  min_qp  max_i_qp  min_i_qp  max_reencode_times
  60.       0      100                 1               100      47      22        47        20                   2
  62. ----------------------------------------run avbr param------------------------------------------------------------------
  63.      id   max_still_qp  motion_sensitivity   min_still_percent      min_still_psnr   min_qp_delta  save_bitrate_en
  65. ----------------------------------------run qvbr param------------------------------------------------------------------
  66.      id   min_bit_percent   max_bit_percent  min_psnr_fluctuate  max_psnr_fluctuate
  68. ----------------------------------------run cvbr param------------------------------------------------------------------
  69.      id  min_qp_delta  max_qp_delta   extra_bit_percent   long_term_stats_time_unit  save_bitrate_en
  70.       0             0             0                   5                          60                n
  72. ----------------------------------------run info1-----------------------------------------------------------------------
  73.      id  inst_br:kbps  inst_frm_rate  wat_l   cfg_bit:kb   real_bit:kb  ip_ratio  dst_percent  start_qp  min_qp  max_qp
  74.       0           776             30   5070           15            13        21          n/a        37      22      47
  76. ----------------------------------------rc debreath_effect info---------------------------------------------------------
  77.      id    enable   strength0   strength1   debreath_effect_cnt
  78.       0         n         n/a         n/a                     0
  80. ----------------------------------------rc hierarchical_qp info---------------------------------------------------------
  81.      id   enable   frame_num[ 0   1   2  3]       qp_delta[ 0    1    2   3]
  82.       0        n              1   1   0  0                 -2   -4    0   0

附录：代码片段

简要说明

配置加载

  1. auto &config = configs.venc;
  2. config.is_rcn_ref_share_buf = HI_TRUE;
  3. config.min_bitrate_hd = 128U;
  4. config.rc_mode_cbr = HI_VENC_RC_MODE_H264_CVBR;
  5. config.rc_mode_vbr = HI_VENC_RC_MODE_H264_QVBR;
  6. config.rc_stats_time = 1;
  7. config.gop_mode = HI_VENC_GOP_MODE_NORMAL_P;

编码器的创建过程

  1. // 准备了相关的 VI-VPSS 链路后，准备 VENC 的相关链路
  2. viencsend_task *viencsend_task::start_venc() {
  3.     RX_DEBUG("%s: start %s ...", name(), venc->name());
  5.     const auto chn = venc->get_chan();
  6.     venc_fill_settings(chn, args);
  8.     const auto attr = &mpp_venc_context()->chn_attr;
  9.     venc_fill_chn_attr(chn, args, attr);
  11.     mpp_show_venc_chn_args(name(), args);
  12.     mpp_show_venc_chn_attr(venc->name(), attr);
  14.     hi_ncall(hi_mpi_venc_create_chn, chn, attr);
  16.     hi_ncall(venc_close_reencode, chn);
  18.     if (args->bit_rate < 1000) {
  19.         // 去呼吸效应
  20.         hi_venc_debreath_effect debreath{};
  21.         debreath.enable = HI_TRUE;
  22.         debreath.strength0 = 1;
  23.         debreath.strength1 = 16;
  24.         hi_ncall(hi_mpi_venc_set_debreath_effect, chn, &debreath);
  25.     }
  27.     hi_ncall(mpp_venc_start_chn_forever, chn);
  29.     flags.set(VENC_VALID);
  31.     return this;
  32. }

从静态配置/活动配置，填充编码器参数

  1. typedef struct mpp_venc_args_s {
  2.     user_intf_t input;
  3.     videoResStd_t vi_std;  //!< probe from H/W
  4.     videoRes_t res;
  5.     hi_u32 frame_rate;
  6.     hi_payload_type type;
  7.     hi_venc_profile profile;
  8.     hi_u32 bit_rate;
  9.     hi_venc_rc_mode rc_mode;  //!< VBR/CBR only
  10.     hi_u32 gop;
  11.     hi_venc_gop_attr gop_attr_;  //!< derived from others
  12.     hi_u32 stats_time_;  //!< derived from others
  13. } mpp_venc_args_t;
  15. hi_s32 venc_fill_settings(hi_venc_chn chn, mpp_venc_args_t *venc) {
  16.     assert(chn == 0 && "only 1 VENC channel supported now");
  18.     assert(venc->profile < HI_VENC_PROFILE_BUTT);
  20.     mpp_venc_init_gop_attr(mpp_venc_config()->gop_mode, &venc->gop_attr_);
  22.     if (venc->gop_attr_.gop_mode == HI_VENC_GOP_MODE_SMART_P) {
  23.         venc->stats_time_ = venc->gop_attr_.smart_p.bg_interval / venc->gop;
  24.         RX_DEBUG("setting VENC:stats_time=%d", venc->stats_time_);
  25.         // } else if (venc->frame_rate != 0) {
  26.         //     venc->stats_time_ = (venc->gop + venc->frame_rate - 1) / venc->frame_rate;
  27.     } else {
  28.         venc->stats_time_ = mpp_venc_config()->rc_stats_time;
  29.     }
  31.     // fix value collision
  33.     if (venc->gop_attr_.gop_mode == HI_VENC_GOP_MODE_BIPRED_B &&
  34.         venc->type == HI_PT_H264 && venc->profile == HI_VENC_PROFILE_H264_BASE) {
  35.         venc->profile = HI_VENC_PROFILE_H264_MAIN;
  36.         RX_NOTICE("H.264 Baseline not support BIPREDB, force it to Main Profile");
  37.     }
  39.     return HI_SUCCESS;
  40. }
  41. hi_s32 venc_fill_chn_attr(hi_venc_chn chn, mpp_venc_args_t *venc, hi_venc_chn_attr *attr) {
  42.     assert(chn == 0 && "only 1 VENC channel supported now");
  44.     // unpack settings
  46.     hi_venc_gop_attr *gop_attr = &venc->gop_attr_;
  47.     hi_payload_type type = venc->type;
  48.     hi_venc_profile profile = venc->profile;
  49.     auto vi_std = venc->vi_std != videoResStd_NONE ? venc->vi_std : videoResStd_MAX;
  50.     hi_size vi_size, venc_size;
  51.     vi_size.width = videoResStd_width(vi_std);
  52.     vi_size.height = videoResStd_height(vi_std);
  53.     venc_size.width = videoRes_width(venc->res);
  54.     venc_size.height = videoRes_height(venc->res);
  56.     // do assignment
  58.     attr->venc_attr.type = type;
  59.     attr->venc_attr.max_pic_width = vi_size.width;
  60.     attr->venc_attr.max_pic_height = vi_size.height;
  61.     attr->venc_attr.pic_width = venc_size.width;
  62.     attr->venc_attr.pic_height = venc_size.height;
  64.     attr->venc_attr.profile = profile_id(profile);
  65.     attr->venc_attr.is_by_frame = HI_TRUE;  // frame mode or slice mode
  67.     deferrable(return HI_FAILURE);
  69.     switch (type) {
  70.         case HI_PT_H265: // 准备使用但还未启用
  71.             attr->venc_attr.buf_size = HI_ALIGN_UP(vi_size.width * vi_size.height * 3 / 4, 64);
  72.             hi_pcall(dgsj_comm_venc_h265_param_init, attr, venc);
  73.             // profile force MAIN if BIPRED moved ahead
  74.             attr->gop_attr = *gop_attr;
  75.             break;
  77.         case HI_PT_H264:
  78.             attr->venc_attr.buf_size = HI_ALIGN_UP(vi_size.width * vi_size.height * 3 / 4, 64);
  79.             hi_pcall(venc_attr_init_h264, chn, attr, venc);
  80.             // profile force MAIN if BIPRED moved ahead
  81.             attr->gop_attr = *gop_attr;
  82.             break;
  84.         // case ...
  85.     }
  87.     return HI_SUCCESS;
  88. }
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