functions such as audio and video slices, video screenshots, video stitching only need to modify the FoPs of the following parameters on the above can be, Eg:fops = "vframe/jpg/offset/1/w/480/h/360/
Rotate/90 "means the video screenshot. Here are some common data processing features that you can choose from://------------------Picture Scaling-------------------FoPs = "imageview/2/w/200/h/200";
------------------video transcoding-------------------//FoPs = "AVTHUMB/FLV/VB/229K/VCODEC/LIBX264/NO
'(Ignore case) option by entering: set ic (including case-sensitive matching, such as Ignore and IGNORE)
Set the 'hlsearch' and 'incsearch' options: set hls is (highlighted)
(Set option)
24. Typing ": set xxx" sets the option "xxx". Some options are:
'Ic ''ignorecase' ignore upper/lower case when searching
'Is ''incsearch' show partial matches for a search phrase
'Hls' hlsearch' highlight all matching ph
20. replace:
R: replace multiple letters
R: replace a single letter
21. Move the cursor to the end of the next line: j $
22. Use the y operator to copy text and p to paste it
NOTE: you can also use y as an operator; yw yanks one word.
23. Set the 'IC '(Ignore case) option by entering: set ic (including case-sensitive matching, such as Ignore and IGNORE)
Set the 'hlsearch' and 'incsearch' options: set hls is (highlighted)
(Set option)
24. Ty
), and then under this root directory is another directory and sub-directory www.2cto.com
Like DOS and Windows, Linux uses "paths" to indicate the levels of files or directories in the file system. A path consists of multiple directory name strings separated by "/", which are divided into absolute paths and relative paths. An absolute path is a method that starts from the root directory "/" to indicate the location of a file or directory in the system. For example, if an absolute path is used t
does not emit light by itself. Therefore, only the colors that absorb specific light waves and reflect other light must be reduced.(2) principle of HLS (color phase, brightness, and saturation)HLS is Hue, Luminance, Saturation ). Color is a property of color. it is essentially the basic color of color, which we often talk about seven colors: red, orange, yellow, green, blue, and purple, each color represen
Chinese)
"" Set r0000on, you must set this to ensure
"" The Chinese functionality of gvim
Set ru
"" For syntax color
If term = "xterm"
Set term = rxvt
Set t_Co = 8
Set t_Sb = ^ [4% dm
Set t_Sf = ^ [3% dm
Endif
Syntax on
"" Set visual bell and disable screen flash
": Set vb t_vb =
Set bs = 2
"" Toggle on/off highlightsearch
Map
: Set hls!
Set hls?
"" Toggle on/off paste mode
The ninth part---Project ffmpeg command parsingYou have seen the ffmpeg on the arm Development Board to give the following information:usage:ffmpeg [Options] [[infile Options]-I infile] ... {[outfile options] outfile} ...Refer to the previous command to perform the same task on the PC Linux operating systemFfmpeg-i rtsp://admin:[email protected]-vcodec copy-acodec copy-s 640x480-f flv rtmp://192.168.1.102:1935/hls/te St2Do a detailed explanation here
Sns.palplot (Current_plette) #当你有六个以上的分类要区分时, # The simplest way is to draw evenly spaced colors in a round color space # Using the HLS color space, this is a simple conversion of the RGB value Sns.palplot (Sns.color_palette ("HLS",8)) #8种颜色data= Np.random.normal (Size= ( -,8)) +np.arange (8)/2Sns.boxplot (Data=data,palette=sns.color_palette (" His",8) ) #hls_palette () function to control the brightness a
format, and the result was shocking:The above test.264 size is 6.2M, converted to. yuv format after the size of 1.6G, really took a surprise. It's too compressed.2. Test the performance of the streaming media serverThe most critical place to be, success or failure stake.(1) Open Nginx[Email protected]:/data/misc/nginx-rtmp/sbin #./nginx-p/data/misc/nginx-rtmp-c conf/nginx.conf(2) FFmpeg push to Nginx[Email protected]:/data/misc/ffmpeg #./ffmpeg-android-i rtsp://admin:[email protected] -vcodec
use X. In practice, you only need to useMake-dwithout_x11 installOnly the text version of VIM can be installed.
After installing ports/Editors/vim. Vimrc:
Set fileencoding = Taiwan
Set guifontset = 8x16, kc15f,-*-16-*-big5-0
And set the locale of zh_tw.big5. In this way, the child can delete a Chinese text at a time.
The following are the suggestions
Set cindent
Set ENC = Taiwan
Set fileencoding = Taiwan
Set HLS
Set nocompatible
Set Sw = 2
Syntax on
Wowza is one of the most popular streaming media servers today, because of the need to set up a corresponding server, but do not want to use camera and other real live, so try to convert media files into live stream and then provide to Wowza live. Here to set the steps and the design of the VOD step out, hoping to let the needy people less detours.1. IntroductionWowzastreaming Engine 4 (aka the famous Wowzamedia Server?) is a high-performance, scalable streaming media server software that suppor
Facebooklive is Facebook's live video product, which is open to celebrities when it starts testing, and allows them to interact with fans via live streaming and fan interaction; when opened to the public, the number of concurrent visits is enormous, and a popular live broadcast may be viewed online by millions of people. It is a very difficult architecture problem to deal with so many concurrent accesses and to ensure low video latency.
Federico Laramie, from the Facebook traffic team, shared th
AAC (Advanced Audio Coding), Chinese name: PremiumAudio encoding, appeared in 1997, based onMPEG-2Audio encoding technology. By Fraunhofer IIS,Dolby Labs,At,Sonyand other companies to develop together to replaceMP3format. 2000,MPEG-4after the advent of the standard, AAC re-integrates its features, adding SBR technology and PS technology, in order to differentiate it from the traditional MPEG-2 AAC, also known as MPEG-4 AAC. The iOS platform supports AAC encoders, primarily using the Audioconvert
for RTMP protocol playback. In addition the Flash Player is also a good choice to enter the address and stream name in the player:The playback effect is as follows, the computer desktop is truncated:To this, our entire crtmpserver source of the Windows platform of the compilation, Linux platform compilation, push stream, play even if complete. You can see that the compilation of Windows is more complex than Linux, in fact, a lot of open source software for Linux to be more friendly, including c
in the file system. A path consists of multiple directory name strings separated by "/", which are divided into absolute paths and relative paths. An absolute path is a method that starts from the root directory "/" to indicate the location of a file or directory in the system. For example, if an absolute path is used to represent the bin directory in the 4th-layer directory in the figure, it should be "/usr/local/bin ". The relative path is based on the current directory, indicating the locati
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