卸载FFmpeg
sudo find / | grep -w ffmpeg | sudo xargs rm -r -f
sudo apt-get --purge remove ffmpeg
sudo apt-get --purge autoremoveffmpeg -h encoder=h264_nvenc
Encoder h264_nvenc [NVIDIA NVENC H.264 encoder]:General capabilities: delay hardware Threading capabilities: noneSupported pixel formats: yuv420p nv12 p010le yuv444p p016le yuv444p16le bgr0 rgb0 cuda
h264_nvenc AVOptions:-preset <int> E..V..... Set the encoding preset (from 0 to 11) (default medium)default E..V..... slow E..V..... hq 2 passesmedium E..V..... hq 1 passfast E..V..... hp 1 passhp E..V..... hq E..V..... bd E..V..... ll E..V..... low latencyllhq E..V..... low latency hqllhp E..V..... low latency hplossless E..V..... losslesshp E..V..... -profile <int> 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 <int> 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 <int> E..V..... Override the preset rate-control (from -1 to INT_MAX) (default -1)constqp E..V..... Constant QP modevbr E..V..... Variable bitrate modecbr E..V..... Constant bitrate modevbr_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 modecbr_hq E..V..... Constant bitrate high quality modevbr_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 availablelist 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)-b_adapt <boolean> E..V..... When lookahead is enabled, set this to 0 to disable adaptive B-frame decision (default true)-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)-coder <int> E..V..... Coder type (from -1 to 2) (default default)default E..V..... auto E..V..... cabac E..V..... cavlc E..V..... ac E..V..... vlc E..V..... -b_ref_mode <int> E..V..... Use B frames as references (from 0 to 2) (default disabled)disabled E..V..... B frames will not be used for referenceeach E..V..... Each B frame will be used for referencemiddle E..V..... Only (number of B frames)/2 will be used for reference-a53cc <boolean> E..V..... Use A53 Closed Captions (if available) (default true)
FFmpeg 获取rtsp视频流
