关于协会网站建设的建议,seo网页优化服务,wordpress返回旧版,wordpress 评论去审核Raspbian简易RTSP服务 1. 源由2. 搭建简易RTSP服务器2.1 系统安装2.2 软件安装2.3 命令介绍2.3.1 libcamera-hello2.3.2 libcamera-vid2.3.3 cvlc 3. 实测4. 参考资料 1. 源由
鉴于前期的一些准备工作#xff1a;
《ArduPilot开源飞控之Companion Computers简单分析》《Ardu… Raspbian简易RTSP服务 1. 源由2. 搭建简易RTSP服务器2.1 系统安装2.2 软件安装2.3 命令介绍2.3.1 libcamera-hello2.3.2 libcamera-vid2.3.3 cvlc 3. 实测4. 参考资料 1. 源由
鉴于前期的一些准备工作
《ArduPilot开源飞控之Companion Computers简单分析》《ArduPilot开源代码之CompanionComputer上天计划》
以及手头可用的资源RaspberryPi(PiZero/Pi3B)选择rpanion-server这个想对容易上手的伴机电脑。
在使用过程中确实也遇到一些问题 Can’t set “Maximum Bitrate” beyond 10MB on Raspberry Pi3B #191 Re-install process will fail due to the existence of binary(node/npm) links #194 Feature Request: pan-tilt gimbal controls #196 Is there any way to save configuration locally on Rpanion? #197 720P20FPS latency is obviously there, any idea? #204 No video feed thru UDP with RTP #175 Feature Request: send VIDEO_STREAM_INFO mavlink messages to GCS #169
整个过程中也得到了stephendade的大力支持和帮助。
当然整理这份资料主要目的是
记录一下其他方式搭建简易RTSP服务器了解最简系统下的RTSP服务性能同时和Rpanion做一个对比
期望用最简单的命令或者环境来做对比测试。
2. 搭建简易RTSP服务器 最简单的环境rpi-rtsp-gstreamer 对应的资料《Streaming Raspberry Pi Video via RTSP with GStreamer and Video4Linux》 最简单的命令libcamera-vid cvlc 对应的资料《How to use libcamera-vid to stream rtsp on raspberry pi? #3097》
注最终结合了上面两份资料选择了最简单命令来搭建环境。
2.1 系统安装
略详见《Raspbian镜像无头烧录》
2.2 软件安装
$ sudo apt-get install gstreamer1.0-tools -y
$ sudo apt-get install libgstrtspserver-1.0-dev gstreamer1.0-rtsp -y
$ sudo apt-get install vlc -y2.3 命令介绍
$ libcamera-hello --list-camera
Available cameras
-----------------
0 : ov5647 [2592x1944] (/base/soc/i2c0mux/i2c1/ov564736)Modes: SGBRG10_CSI2P : 640x480 [58.92 fps - (16, 0)/2560x1920 crop]1296x972 [43.25 fps - (0, 0)/2592x1944 crop]1920x1080 [30.62 fps - (348, 434)/1928x1080 crop]2592x1944 [15.63 fps - (0, 0)/2592x1944 crop]$ libcamera-vid --codec h264 --profile main --level 4 -b 150000000 --framerate 30 --width 1920 --height 1080 -t 0 --inline -o - | cvlc stream:///dev/stdin --sout #rtp{sdprtsp://:8554/stream1} :demuxh2642.3.1 libcamera-hello
OV5647摄像头CSI模块支持以下模式
640x480 [58.92 fps - (16, 0)/2560x1920 crop]1296x972 [43.25 fps - (0, 0)/2592x1944 crop]1920x1080 [30.62 fps - (348, 434)/1928x1080 crop]2592x1944 [15.63 fps - (0, 0)/2592x1944 crop]
$ libcamera-hello --help
Valid options are:-h [ --help ] [arg(1)] (0) Print this help message--version [arg(1)] (0) Displays the build version number--list-cameras [arg(1)] (0) Lists the available cameras attached to the system.--camera arg (0) Chooses the camera to use. To list the available indexes, use the--list-cameras option.-v [ --verbose ] [arg(2)] (1) Set verbosity level. Level 0 is no output, 1 is default, 2 is verbose.-c [ --config ] [arg(config.txt)] Read the options from a file. If no filename is specified, default toconfig.txt. In case of duplicate options, the ones provided on the command linewill be used. Note that the config file must only contain the long formoptions.--info-text arg (#%frame (%fps fps) exp %exp ag %ag dg %dg)Sets the information string on the titlebar. Available values:%frame (frame number)%fps (framerate)%exp (shutter speed)%ag (analogue gain)%dg (digital gain)%rg (red colour gain)%bg (blue colour gain)%focus (focus FoM value)%aelock (AE locked status)%lp (lens position, if known)%afstate (AF state, if supported)--width arg (0) Set the output image width (0 use default value)--height arg (0) Set the output image height (0 use default value)-t [ --timeout ] arg (5000) Time (in ms) for which program runs-o [ --output ] arg Set the output file name--post-process-file arg Set the file name for configuring the post-processing--rawfull [arg(1)] (0) Force use of full resolution raw frames-n [ --nopreview ] [arg(1)] (0) Do not show a preview window-p [ --preview ] arg (0,0,0,0) Set the preview window dimensions, given as x,y,width,height e.g. 0,0,640,480-f [ --fullscreen ] [arg(1)] (0) Use a fullscreen preview window--qt-preview [arg(1)] (0) Use Qt-based preview window (WARNING: causes heavy CPU load, fullscreen notsupported)--hflip [arg(1)] (0) Request a horizontal flip transform--vflip [arg(1)] (0) Request a vertical flip transform--rotation arg (0) Request an image rotation, 0 or 180--roi arg (0,0,0,0) Set region of interest (digital zoom) e.g. 0.25,0.25,0.5,0.5--shutter arg (0) Set a fixed shutter speed in microseconds--analoggain arg (0) Set a fixed gain value (synonym for gain option)--gain arg Set a fixed gain value--metering arg (centre) Set the metering mode (centre, spot, average, custom)--exposure arg (normal) Set the exposure mode (normal, sport)--ev arg (0) Set the EV exposure compensation, where 0 no change--awb arg (auto) Set the AWB mode (auto, incandescent, tungsten, fluorescent, indoor, daylight,cloudy, custom)--awbgains arg (0,0) Set explict red and blue gains (disable the automatic AWB algorithm)--flush [arg(1)] (0) Flush output data as soon as possible--wrap arg (0) When writing multiple output files, reset the counter when it reaches thisnumber--brightness arg (0) Adjust the brightness of the output images, in the range -1.0 to 1.0--contrast arg (1) Adjust the contrast of the output image, where 1.0 normal contrast--saturation arg (1) Adjust the colour saturation of the output, where 1.0 normal and 0.0 greyscale--sharpness arg (1) Adjust the sharpness of the output image, where 1.0 normal sharpening--framerate arg (-1) Set the fixed framerate for preview and video modes--denoise arg (auto) Sets the Denoise operating mode: auto, off, cdn_off, cdn_fast, cdn_hq--viewfinder-width arg (0) Width of viewfinder frames from the camera (distinct from the preview windowsize--viewfinder-height arg (0) Height of viewfinder frames from the camera (distinct from the preview windowsize)--tuning-file arg (-) Name of camera tuning file to use, omit this option for libcamera defaultbehaviour--lores-width arg (0) Width of low resolution frames (use 0 to omit low resolution stream--lores-height arg (0) Height of low resolution frames (use 0 to omit low resolution stream--mode arg Camera mode as W:H:bit-depth:packing, where packing is P (packed) or U(unpacked)--viewfinder-mode arg Camera mode for preview as W:H:bit-depth:packing, where packing is P (packed)or U (unpacked)--buffer-count arg (0) Number of in-flight requests (and buffers) configured for video, raw, andstill.--viewfinder-buffer-count arg (0) Number of in-flight requests (and buffers) configured for preview window.--autofocus-mode arg (default) Control to set the mode of the AF (autofocus) algorithm.(manual, auto,continuous)--autofocus-range arg (normal) Set the range of focus distances that is scanned.(normal, macro, full)--autofocus-speed arg (normal) Control that determines whether the AF algorithm is to move the lens as quicklyas possible or more steadily.(normal, fast)--autofocus-window arg (0,0,0,0) Sets AfMetering to AfMeteringWindows an set region used, e.g.0.25,0.25,0.5,0.5--lens-position arg Set the lens to a particular focus position, expressed as a reciprocal distance(0 moves the lens to infinity), or default for the hyperfocal distance--hdr [arg(1)] (0) Enable (1) or disable (0) High Dynamic Range, where supported--metadata arg Save captured image metadata to a file or - for stdout--metadata-format arg (json) Format to save the metadata in, either txt or json (requires --metadata)
2.3.2 libcamera-vid
视频采集
编码--codec h264 配置--profile main 级别--level 4 码流-b 150000000 帧率--framerate 30 宽高--width 1920 --height 1080 延时-t 0 强制--inline 输出-o -
$ libcamera-vid --help
Valid options are:-h [ --help ] [arg(1)] (0) Print this help message--version [arg(1)] (0) Displays the build version number--list-cameras [arg(1)] (0) Lists the available cameras attached to the system.--camera arg (0) Chooses the camera to use. To list the available indexes, use the--list-cameras option.-v [ --verbose ] [arg(2)] (1) Set verbosity level. Level 0 is no output, 1 is default, 2 is verbose.-c [ --config ] [arg(config.txt)] Read the options from a file. If no filename is specified, default toconfig.txt. In case of duplicate options, the ones provided on the command linewill be used. Note that the config file must only contain the long formoptions.--info-text arg (#%frame (%fps fps) exp %exp ag %ag dg %dg)Sets the information string on the titlebar. Available values:%frame (frame number)%fps (framerate)%exp (shutter speed)%ag (analogue gain)%dg (digital gain)%rg (red colour gain)%bg (blue colour gain)%focus (focus FoM value)%aelock (AE locked status)%lp (lens position, if known)%afstate (AF state, if supported)--width arg (0) Set the output image width (0 use default value)--height arg (0) Set the output image height (0 use default value)-t [ --timeout ] arg (5000) Time (in ms) for which program runs-o [ --output ] arg Set the output file name--post-process-file arg Set the file name for configuring the post-processing--rawfull [arg(1)] (0) Force use of full resolution raw frames-n [ --nopreview ] [arg(1)] (0) Do not show a preview window-p [ --preview ] arg (0,0,0,0) Set the preview window dimensions, given as x,y,width,height e.g. 0,0,640,480-f [ --fullscreen ] [arg(1)] (0) Use a fullscreen preview window--qt-preview [arg(1)] (0) Use Qt-based preview window (WARNING: causes heavy CPU load, fullscreen notsupported)--hflip [arg(1)] (0) Request a horizontal flip transform--vflip [arg(1)] (0) Request a vertical flip transform--rotation arg (0) Request an image rotation, 0 or 180--roi arg (0,0,0,0) Set region of interest (digital zoom) e.g. 0.25,0.25,0.5,0.5--shutter arg (0) Set a fixed shutter speed in microseconds--analoggain arg (0) Set a fixed gain value (synonym for gain option)--gain arg Set a fixed gain value--metering arg (centre) Set the metering mode (centre, spot, average, custom)--exposure arg (normal) Set the exposure mode (normal, sport)--ev arg (0) Set the EV exposure compensation, where 0 no change--awb arg (auto) Set the AWB mode (auto, incandescent, tungsten, fluorescent, indoor, daylight,cloudy, custom)--awbgains arg (0,0) Set explict red and blue gains (disable the automatic AWB algorithm)--flush [arg(1)] (0) Flush output data as soon as possible--wrap arg (0) When writing multiple output files, reset the counter when it reaches thisnumber--brightness arg (0) Adjust the brightness of the output images, in the range -1.0 to 1.0--contrast arg (1) Adjust the contrast of the output image, where 1.0 normal contrast--saturation arg (1) Adjust the colour saturation of the output, where 1.0 normal and 0.0 greyscale--sharpness arg (1) Adjust the sharpness of the output image, where 1.0 normal sharpening--framerate arg (-1) Set the fixed framerate for preview and video modes--denoise arg (auto) Sets the Denoise operating mode: auto, off, cdn_off, cdn_fast, cdn_hq--viewfinder-width arg (0) Width of viewfinder frames from the camera (distinct from the preview windowsize--viewfinder-height arg (0) Height of viewfinder frames from the camera (distinct from the preview windowsize)--tuning-file arg (-) Name of camera tuning file to use, omit this option for libcamera defaultbehaviour--lores-width arg (0) Width of low resolution frames (use 0 to omit low resolution stream--lores-height arg (0) Height of low resolution frames (use 0 to omit low resolution stream--mode arg Camera mode as W:H:bit-depth:packing, where packing is P (packed) or U(unpacked)--viewfinder-mode arg Camera mode for preview as W:H:bit-depth:packing, where packing is P (packed)or U (unpacked)--buffer-count arg (0) Number of in-flight requests (and buffers) configured for video, raw, andstill.--viewfinder-buffer-count arg (0) Number of in-flight requests (and buffers) configured for preview window.--autofocus-mode arg (default) Control to set the mode of the AF (autofocus) algorithm.(manual, auto,continuous)--autofocus-range arg (normal) Set the range of focus distances that is scanned.(normal, macro, full)--autofocus-speed arg (normal) Control that determines whether the AF algorithm is to move the lens as quicklyas possible or more steadily.(normal, fast)--autofocus-window arg (0,0,0,0) Sets AfMetering to AfMeteringWindows an set region used, e.g.0.25,0.25,0.5,0.5--lens-position arg Set the lens to a particular focus position, expressed as a reciprocal distance(0 moves the lens to infinity), or default for the hyperfocal distance--hdr [arg(1)] (0) Enable (1) or disable (0) High Dynamic Range, where supported--metadata arg Save captured image metadata to a file or - for stdout--metadata-format arg (json) Format to save the metadata in, either txt or json (requires --metadata)-b [ --bitrate ] arg (0) Set the video bitrate for encoding, in bits/second (h264 only)--profile arg Set the encoding profile (h264 only)--level arg Set the encoding level (h264 only)-g [ --intra ] arg (0) Set the intra frame period (h264 only)--inline [arg(1)] (0) Force PPS/SPS header with every I frame (h264 only)--codec arg (h264) Set the codec to use, either h264, mjpeg or yuv420--save-pts arg Save a timestamp file with this name-q [ --quality ] arg (50) Set the MJPEG quality parameter (mjpeg only)-l [ --listen ] [arg(1)] (0) Listen for an incoming client network connection before sending data to theclient-k [ --keypress ] [arg(1)] (0) Pause or resume video recording when ENTER pressed-s [ --signal ] [arg(1)] (0) Pause or resume video recording when signal received-i [ --initial ] arg (record) Use pause to pause the recording at startup, otherwise record (the default)--split [arg(1)] (0) Create a new output file every time recording is paused and then resumed--segment arg (0) Break the recording into files of approximately this many milliseconds--circular [arg(4)] (0) Write output to a circular buffer of the given size (in MB) which is saved onexit--frames arg (0) Run for the exact number of frames specified. This will override any timeoutset.2.3.3 cvlc
cvlc stream:///dev/stdin --sout #rtp{sdprtsp://:8554/stream1} :demuxh264 这里需要仔细的阅读以下文档
RTP (I): Intro to RTP and SDPRTP (II): Streaming with FFmpeg
还不太熟悉这个命令不过个人理解如下
输入输出stream:///dev/stdin --sout #rtp{sdprtsp://:8554/stream1} H264编码:demuxh264
$ cvlc --help
VLC media player 3.0.20 Vetinari (revision 3.0.20-0-g6f0d0ab126b)
Usage: vlc [options] [stream] ...
You can specify multiple streams on the commandline.
They will be enqueued in the playlist.
The first item specified will be played first.Options-styles:--option A global option that is set for the duration of the program.-option A single letter version of a global --option.:option An option that only applies to the stream directly before itand that overrides previous settings.Stream MRL syntax:[[access][/demux]://]URL[#[title][:chapter][-[title][:chapter]]][:optionvalue ...]Many of the global --options can also be used as MRL specific :options.Multiple :optionvalue pairs can be specified.URL syntax:file:///path/file Plain media filehttp://host[:port]/file HTTP URLftp://host[:port]/file FTP URLmms://host[:port]/file MMS URLscreen:// Screen capturedvd://[device] DVD devicevcd://[device] VCD devicecdda://[device] Audio CD deviceudp://[[source address][bind address][:bind port]]UDP stream sent by a streaming servervlc://pause:seconds Pause the playlist for a certain timevlc://quit Special item to quit VLCcore program (core)Audio--audio, --no-audio Enable audio(default enabled)--force-dolby-surround {0 (Auto), 1 (On), 2 (Off)}Force detection of Dolby Surround--audio-replay-gain-mode {none,track,album}Replay gain mode--audio-replay-gain-preamp floatReplay preamp--audio-replay-gain-default floatDefault replay gain--audio-time-stretch, --no-audio-time-stretchEnable time stretching audio(default enabled)--audio-filter string Audio filters--audio-visual {any,visual,glspectrum,none}Audio visualisationsVideo-f, --fullscreen, --no-fullscreenFullscreen video output(default disabled)--video-on-top, --no-video-on-topAlways on top(default disabled)--video-wallpaper, --no-video-wallpaperEnable wallpaper mode(default disabled)--video-title-show, --no-video-title-showShow media title on video(default enabled)--video-title-timeout integerShow video title for x milliseconds--video-title-position {0 (Centre), 1 (Left), 2 (Right), 4 (Top), 8 (Bottom), 5 (Top-Left), 6 (Top-Right), 9 (Bottom-Left), 10 (Bottom-Right)}Position of video title--mouse-hide-timeout integerHide cursor and fullscreen controller after x millisecondsSnapshot:--snapshot-path string Video snapshot directory (or filename)--snapshot-prefix string Video snapshot file prefix--snapshot-format {png,jpg,tiff}Video snapshot format--snapshot-preview, --no-snapshot-previewDisplay video snapshot preview(default enabled)--snapshot-sequential, --no-snapshot-sequentialUse sequential numbers instead of timestamps(default disabled)Window properties:--crop string Video cropping--custom-crop-ratios stringCustom crop ratios list--aspect-ratio string Source aspect ratio--autoscale, --no-autoscaleVideo Auto Scaling(default enabled)--custom-aspect-ratios stringCustom aspect ratios list--deinterlace {0 (Off), -1 (Automatic), 1 (On)}Deinterlace--deinterlace-mode {auto,discard,blend,mean,bob,linear,x,yadif,yadif2x,phosphor,ivtc}Deinterlace mode--video-filter string Video filter module--video-splitter string Video splitter moduleSubpicturesOn Screen Display:--spu, --no-spu Enable sub-pictures(default enabled)--osd, --no-osd On Screen Display(default enabled)Subtitles:--sub-file string Use subtitle file--sub-autodetect-file, --no-sub-autodetect-fileAutodetect subtitle files(default enabled)--sub-text-scale integer [10 .. 500]Subtitles text scaling factorOverlays:--sub-source string Subpictures source module--sub-filter string Subpictures filter moduleTrack settings:--audio-language string Audio language--sub-language string Subtitle language--menu-language string Menu language--preferred-resolution {-1 (Best available), 1080 (Full HD (1080p)), 720 (HD (720p)), 576 (Standard Definition (576 or 480 lines)), 360 (Low Definition (360 lines)), 240 (Very Low Definition (240 lines))}Preferred video resolutionPlayback control:--input-repeat integer [0 .. 65535]Input repetitions--input-fast-seek, --no-input-fast-seekFast seek(default disabled)--rate float Playback speedDefault devices:--dvd string DVD device--vcd string VCD deviceAdvanced:--input-title-format stringChange title according to current mediaInput--stream-filter string Stream filter modulePlaylistPerformance options:-Z, --random, --no-random Play files randomly forever(default disabled)-L, --loop, --no-loop Repeat all(default disabled)-R, --repeat, --no-repeat Repeat current item(default disabled)--play-and-exit, --no-play-and-exitPlay and exit(default disabled)--play-and-stop, --no-play-and-stopPlay and stop(default disabled)--start-paused, --no-start-pausedStart paused(default disabled)--playlist-autostart, --no-playlist-autostartAuto start(default enabled)--playlist-cork, --no-playlist-corkPause on audio communication(default enabled)--media-library, --no-media-libraryUse media library(default disabled)--playlist-tree, --no-playlist-treeDisplay playlist tree(default disabled)--open string Default stream--auto-preparse, --no-auto-preparseAutomatically preparse items(default enabled)--preparse-timeout integerPreparsing timeout--metadata-network-access, --no-metadata-network-accessAllow metadata network access(default disabled)--recursive {none,collapse,expand}Subdirectory behaviour--ignore-filetypes stringIgnored extensions--show-hiddenfiles, --no-show-hiddenfilesShow hidden files(default disabled)-v, --verbose integer Verbosity (0,1,2)--pidfile string Write process id to file--advanced, --no-advanced Show advanced options(default disabled)--interact, --no-interact Interface interaction(default enabled)-I, --intf string Interface module--extraintf string Extra interface modules--control string Control interfacesHot keys--hotkeys-y-wheel-mode {-1 (Ignore), 0 (Volume control), 2 (Position control), 3 (Position control reversed)}Mouse wheel vertical axis control--hotkeys-x-wheel-mode {-1 (Ignore), 0 (Volume control), 2 (Position control), 3 (Position control reversed)}Mouse wheel horizontal axis control--global-key-toggle-fullscreen stringFullscreen--key-toggle-fullscreen stringFullscreen--global-key-leave-fullscreen stringExit fullscreen--key-leave-fullscreen stringExit fullscreen--global-key-play-pause stringPlay/Pause--key-play-pause string Play/Pause--global-key-faster stringFaster--key-faster string Faster--global-key-slower stringSlower--key-slower string Slower--global-key-rate-normal stringNormal rate--key-rate-normal string Normal rate--global-key-rate-faster-fine stringFaster (fine)--key-rate-faster-fine stringFaster (fine)--global-key-rate-slower-fine stringSlower (fine)--key-rate-slower-fine stringSlower (fine)--global-key-next string Next--key-next string Next--global-key-prev string Previous--key-prev string Previous--global-key-stop string Stop--key-stop string Stop--global-key-jump-extrashort stringVery short backwards jump--key-jump-extrashort stringVery short backwards jump--global-key-jumpextrashort stringVery short forward jump--key-jumpextrashort stringVery short forward jump--global-key-jump-short stringShort backwards jump--key-jump-short string Short backwards jump--global-key-jumpshort stringShort forward jump--key-jumpshort string Short forward jump--global-key-jump-medium stringMedium backwards jump--key-jump-medium string Medium backwards jump--global-key-jumpmedium stringMedium forward jump--key-jumpmedium string Medium forward jump--global-key-jump-long stringLong backwards jump--key-jump-long string Long backwards jump--global-key-jumplong stringLong forward jump--key-jumplong string Long forward jump--global-key-frame-next stringNext frame--key-frame-next string Next frame--global-key-quit string Quit--key-quit string Quit--global-key-vol-up stringVolume up--key-vol-up string Volume up--global-key-vol-down stringVolume down--key-vol-down string Volume down--global-key-vol-mute stringMute--key-vol-mute string Mute--global-key-audio-track stringCycle audio track--key-audio-track string Cycle audio track--global-key-audiodevice-cycle stringCycle through audio devices--key-audiodevice-cycle stringCycle through audio devices--global-key-subtitle-revtrack stringCycle subtitle track in reverse order--key-subtitle-revtrack stringCycle subtitle track in reverse order--global-key-subtitle-track stringCycle subtitle track--key-subtitle-track stringCycle subtitle track--global-key-subtitle-toggle stringToggle subtitles--key-subtitle-toggle stringToggle subtitles--global-key-program-sid-next stringCycle next program Service ID--key-program-sid-next stringCycle next program Service ID--global-key-program-sid-prev stringCycle previous program Service ID--key-program-sid-prev stringCycle previous program Service ID--global-key-aspect-ratio stringCycle source aspect ratio--key-aspect-ratio stringCycle source aspect ratio--global-key-crop string Cycle video crop--key-crop string Cycle video crop--global-key-toggle-autoscale stringToggle autoscaling--key-toggle-autoscale stringToggle autoscaling--global-key-incr-scalefactor stringIncrease scale factor--key-incr-scalefactor stringIncrease scale factor--global-key-decr-scalefactor stringDecrease scale factor--key-decr-scalefactor stringDecrease scale factor--global-key-deinterlace stringToggle deinterlacing--key-deinterlace string Toggle deinterlacing--global-key-deinterlace-mode stringCycle deinterlace modes--key-deinterlace-mode stringCycle deinterlace modes--global-key-intf-show stringShow controller in fullscreen--key-intf-show string Show controller in fullscreen--global-key-wallpaper stringToggle wallpaper mode in video output--key-wallpaper string Toggle wallpaper mode in video output--global-key-random stringRandom--key-random string Random--global-key-loop string Normal/Loop/Repeat--key-loop string Normal/Loop/Repeat--global-key-zoom-quarter string1:4 Quarter--key-zoom-quarter string1:4 Quarter--global-key-zoom-half string1:2 Half--key-zoom-half string 1:2 Half--global-key-zoom-original string1:1 Original--key-zoom-original string1:1 Original--global-key-zoom-double string2:1 Double--key-zoom-double string 2:1 DoubleJump sizes:--extrashort-jump-size integerVery short jump length--short-jump-size integerShort jump length--medium-jump-size integerMedium jump length--long-jump-size integer Long jump length--bookmark1 string Playlist bookmark 1--bookmark2 string Playlist bookmark 2--bookmark3 string Playlist bookmark 3--bookmark4 string Playlist bookmark 4--bookmark5 string Playlist bookmark 5--bookmark6 string Playlist bookmark 6--bookmark7 string Playlist bookmark 7--bookmark8 string Playlist bookmark 8--bookmark9 string Playlist bookmark 9--bookmark10 string Playlist bookmark 10-h, --help, --no-help print help for VLC (can be combined with --advanced and --help-verbose)(default disabled)-H, --full-help, --no-full-helpExhaustive help for VLC and its modules(default disabled)--longhelp, --no-longhelp print help for VLC and all its modules (can be combined with --advanced and --help-verbose)(default disabled)--help-verbose, --no-help-verboseask for extra verbosity when displaying help(default disabled)-l, --list, --no-list print a list of available modules(default disabled)--list-verbose, --no-list-verboseprint a list of available modules with extra detail(default disabled)-p, --module string print help on a specific module (can be combined with --advanced and --help-verbose). Prefix the module name with for strict matches.--ignore-config, --no-ignore-configno configuration option will be loaded nor saved to config file(default enabled)--reset-config, --no-reset-configreset the current config to the default values(default disabled)--reset-plugins-cache, --no-reset-plugins-cacheresets the current plugins cache(default disabled)--version, --no-version print version information(default disabled)--config string use alternate config fileNote: add --advanced to your command line to see advanced options.To get exhaustive help, use -H.
3. 实测
注链接视频是一个合集有Rpanion/libcamera_ivd等视频可以点开来看下效果。
总的来说Rpi3B OV5647 CSI摄像模组在640x480 30/50FPS下实时的效果还是可以的。目前该摄像头驱动好像并不支持720P所以高清的时候会很卡顿。
$ libcamera-vid --codec h264 --profile main --level 4 --framerate 30 --width 1920 --height 1080 -t 0 --inline -o - | cvlc stream:///dev/stdin --sout #rtp{sdprtsp://:8554/stream1} :demuxh264
OV5647_libcamera_cvlc_1920x1080x30FPS OV5647-1920x1080x30FPS 4. 参考资料
【1】Raspbian安装云台 【2】Raspbian安装摄像头 【3】Raspbian镜像无头烧录
