Encoder hevc_nvenc [NVIDIA NVENC hevc encoder]:
    General capabilities: delay
    Threading capabilities: none
    Supported pixel formats: yuv420p nv12 p010le yuv444p yuv444p16le bgr0 rgb0 cuda
hevc_nvenc AVOptions:
  -preset            <int>        E..V.... Set the encoding preset (from 0 to 11) (default medium)
     default                      E..V....
     slow                         E..V.... hq 2 passes
     medium                       E..V.... hq 1 pass
     fast                         E..V.... hp 1 pass
     hp                           E..V....
     hq                           E..V....
     bd                           E..V....
     ll                           E..V.... low latency
     llhq                         E..V.... low latency hq
     llhp                         E..V.... low latency hp
     lossless                     E..V.... lossless
     losslesshp                   E..V.... lossless hp
  -profile           <int>        E..V.... Set the encoding profile (from 0 to 4) (default main)
     main                         E..V....
     main10                       E..V....
     rext                         E..V....
  -level             <int>        E..V.... Set the encoding level restriction (from 0 to 186) (default auto)
     auto                         E..V....
     1                            E..V....
     1.0                          E..V....
     2                            E..V....
     2.0                          E..V....
     2.1                          E..V....
     3                            E..V....
     3.0                          E..V....
     3.1                          E..V....
     4                            E..V....
     4.0                          E..V....
     4.1                          E..V....
     5                            E..V....
     5.0                          E..V....
     5.1                          E..V....
     5.2                          E..V....
     6                            E..V....
     6.0                          E..V....
     6.1                          E..V....
     6.2                          E..V....
  -tier              <int>        E..V.... Set the encoding tier (from 0 to 1) (default main)
     main                         E..V....
     high                         E..V....
  -rc                <int>        E..V.... Override the preset rate-control (from -1 to INT_MAX) (default -1)
     constqp                      E..V.... Constant QP mode
     vbr                          E..V.... Variable bitrate mode
     cbr                          E..V.... Constant bitrate mode
     vbr_minqp                    E..V.... Variable bitrate mode with MinQP (deprecated)
     ll_2pass_quality              E..V.... Multi-pass optimized for image quality (deprecated)
     ll_2pass_size                E..V.... Multi-pass optimized for constant frame size (deprecated)
     vbr_2pass                    E..V.... Multi-pass variable bitrate mode (deprecated)
     cbr_ld_hq                    E..V.... Constant bitrate low delay high quality mode
     cbr_hq                       E..V.... Constant bitrate high quality mode
     vbr_hq                       E..V.... Variable bitrate high quality mode
  -rc-lookahead      <int>        E..V.... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0)
  -surfaces          <int>        E..V.... Number of concurrent surfaces (from 0 to 64) (default 0)
  -cbr               <boolean>    E..V.... Use cbr encoding mode (default false)
  -2pass             <boolean>    E..V.... Use 2pass encoding mode (default auto)
  -gpu               <int>        E..V.... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any)
     any                          E..V.... Pick the first device available
     list                         E..V.... List the available devices
  -delay             <int>        E..V.... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX)
  -no-scenecut       <boolean>    E..V.... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false)
  -forced-idr        <boolean>    E..V.... If forcing keyframes, force them as IDR frames. (default false)
  -spatial_aq        <boolean>    E..V.... set to 1 to enable Spatial AQ (default false)
  -temporal_aq       <boolean>    E..V.... set to 1 to enable Temporal AQ (default false)
  -zerolatency       <boolean>    E..V.... Set 1 to indicate zero latency operation (no reordering delay) (default false)
  -nonref_p          <boolean>    E..V.... Set this to 1 to enable automatic insertion of non-reference P-frames (default false)
  -strict_gop        <boolean>    E..V.... Set 1 to minimize GOP-to-GOP rate fluctuations (default false)
  -aq-strength       <int>        E..V.... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8)
  -cq                <float>      E..V.... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0)
  -aud               <boolean>    E..V.... Use access unit delimiters (default false)
  -bluray-compat     <boolean>    E..V.... Bluray compatibility workarounds (default false)
  -init_qpP          <int>        E..V.... Initial QP value for P frame (from -1 to 51) (default -1)
  -init_qpB          <int>        E..V.... Initial QP value for B frame (from -1 to 51) (default -1)
  -init_qpI          <int>        E..V.... Initial QP value for I frame (from -1 to 51) (default -1)
  -qp                <int>        E..V.... Constant quantization parameter rate control method (from -1 to 51) (default -1)
  -weighted_pred     <int>        E..V.... Set 1 to enable weighted prediction (from 0 to 1) (default 0)