====== Paramètres H264_NVENC ====== Encoder h264_nvenc [NVIDIA NVENC H.264 encoder]: General capabilities: delay Threading capabilities: none Supported pixel formats: yuv420p nv12 p010le yuv444p yuv444p16le bgr0 rgb0 h264_nvenc AVOptions: -preset 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.... losslesshp E..V.... -profile E..V.... Set the encoding profile (from 0 to 3) (default main) baseline E..V.... main E..V.... high E..V.... high444p E..V.... -level E..V.... Set the encoding level restriction (from 0 to 51) (default auto) auto E..V.... 1 E..V.... 1.0 E..V.... 1b E..V.... 1.0b E..V.... 1.1 E..V.... 1.2 E..V.... 1.3 E..V.... 2 E..V.... 2.0 E..V.... 2.1 E..V.... 2.2 E..V.... 3 E..V.... 3.0 E..V.... 3.1 E..V.... 3.2 E..V.... 4 E..V.... 4.0 E..V.... 4.1 E..V.... 4.2 E..V.... 5 E..V.... 5.0 E..V.... 5.1 E..V.... -rc 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 ll_2pass_quality E..V.... Multi-pass optimized for image quality (only for low-latency presets) ll_2pass_size E..V.... Multi-pass optimized for constant frame size (only for low-latency presets) vbr_2pass E..V.... Multi-pass variable bitrate mode -rc-lookahead E..V.... Number of frames to look ahead for rate-control (from -1 to INT_MAX) (default -1) -surfaces E..V.... Number of concurrent surfaces (from 0 to INT_MAX) (default 32) -cbr E..V.... Use cbr encoding mode (default false) -2pass E..V.... Use 2pass encoding mode (default auto) -gpu 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 E..V.... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX) -no-scenecut E..V.... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false) -forced-idr E..V.... If forcing keyframes, force them as IDR frames. (default auto) -b_adapt E..V.... When lookahead is enabled, set this to 0 to disable adaptive B-frame decision (default true) -spatial-aq E..V.... set to 1 to enable Spatial AQ (default false) -temporal-aq E..V.... set to 1 to enable Temporal AQ (default false) -zerolatency E..V.... Set 1 to indicate zero latency operation (no reordering delay) (default false) -nonref_p E..V.... Set this to 1 to enable automatic insertion of non-reference P-frames (default false) -strict_gop E..V.... Set 1 to minimize GOP-to-GOP rate fluctuations (default false) -aq-strength 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 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)