mpeg4 ts

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Bash shell, call FFmpeg periodic screenshot

#!/bin/bash# gets all m3u8 files in the current directory, and Var=$(ls|grep '. m3u8'|Cut-D'.'-F1) #死循环 while[1=1 ] Do#循环每个文件 forStreaminch$var Do#获取当前最新视频文件 TS=$(ls-t|grep "$stream") for file inch$ts Do#存储M3U8文件文件名作为图片文件名, for* -, capturing the first frame, stored in the current directory of the Screen folder img=$(ls$file|Cut-D'-'-F1) #调用ffmpeg intercept video FFMPEG2-I. $file-y-f image2-s -* --vf

Redis Source Analysis (31)---Latency delay analysis and processing

) {//Find the event corresponding to the delay sample record structure struct Latencytimeseries *ts = Dictfetchvalue (server.latency_events,event); time_t now = time (NULL); int prev; /* Create The time series if it is does not exist. */if (ts = = NULL) {ts = zmalloc (sizeof (*ts));

M3U8 Analysis of the network live TV (Part One)

In the previous article, the m3u8 analysis and the keyword section of the network live TV were described. In this chapter I will enumerate and analyze the m3u8 files of different data sources that I have met.The first: TS fragment address is a file name: http:\\www.xxx.com\01\xx\1.m3u8#EXTM3U #ext-x-targetduration:8#ext-x-media-sequence:92595#extinf:8,20121120t182851-04-92595.ts#extinf : 8,20121120t182851-0

Guide to digital TV electronic programs (EPG) AND ITS System

significance to business providers. Digital TV information 1. program description In digital TVs, all information and signals, including videos, audios, texts, and images, are converted into data after being digitalized. Data should be packed according to the relevant standard (usually MPEG-2) before transmission, forming fixed length transfer (TS) packet, the MPEG-2 TS packet length is 188 bytes, an

Summary of encrypted HLS and HSS tests

, need check whether there is Protectionheader field, you can see the following with Insys DRM is encrypted with a large section of the key's info.1. wget (curl) HSS manifest.2. Check HSS manifest include key info.3. Check DRM system related logs and make sure key is create successfully.4. Check our system related logs.5. wget TS segment and compared with NO-DRM segment.HSS with Insys DRMHSS with no DRMHLS Master m3u8 contains information about severa

Linux time Subsystem eight: Dynamic clock frame (config_no_hz, tickless)

switch to dynamic clock mode. Tick_check_oneshot_change after checking that both timekeeper and clock_event_device have dynamic clock conditions, the TICK_NOHZ_SWITCH_TO_NOHZ function switches to the dynamic clock mode:First of all, the function uses the Tick_switch_to_oneshot function to set the Tick_device's working mode to a single trigger mode, and replaces its interrupt event callback function with Tick_nohz_handler, then Tick_ The schema field in the SCHED structure is set to Nohz_mode_lo

Video compression algorithm related knowledge

(the Dellivery Multimedia Integration Framework)DMIF is the overall framework of multimedia transmission, which mainly solves the operational problems of multimedia applications in interactive networks, broadcast environments and disk applications. The interaction and transmission between client and server is established by transmitting the multi-channel synthetic bit information. By DMIF,MPEG4, you can establish a channel with special quality of ser

Day 1-resolution of HD video Encapsulation Format

Avi,It can contain videos of different encoding formats. Encapsulate a file like a bottle Originally, the original video stream data is converted into a corresponding bit stream after being encoded, And the bit stream is encapsulated into the corresponding file format according to the protocol. The so-called encapsulation is to add different "headers" to the original video bit streams and cut them into different sizes. For example, after the original analog video adopts MPEG2 digital encoding,

Use FFmpeg video format conversion, video capture, video capture, screen recording

FFmpeg is so powerful that you can do your job with a few simple commands.Put Darkdoor. [001-100].jpg sequence frames and 001.mp3 audio files use MPEG4 encoding to synthesize video files Darkdoor.avi:$ ffmpeg-i 001.mp3-i darkdoor.%3d.jpg-s 1024x768-author skypp-vcodec MPEG4 Darkdoor.aviFFmpeg also supports MOV format:$ ffmpeg-i darkdoor.%3d.jpg Darkdoor.movTo see which formats your ffmpeg supports, you can

Deploy applications using Terminal Services

You can find instructions on how to install and use terminal services on the Internet and in local bookstores. However, most of them provide users with unknown benefits for remote applications. With only a few operations, you can quickly deploy a terminal server that hosts the required applications in your environment. However, to meet user expectations, you must consider other situations. If you are a terminal server administrator, you need to consider the following points by setting aside the

FFmpeg to H264 encoding format, moov (meta data) moved to the head, bit rate to do a certain compression, resolution also lowered

Ffmpeg-i test.mp4-threads 4-vcodec mpeg4-b:v 1000k test_a1.mp4ffmpeg-i test.mp4-threads 8-vcodec mpeg4-b:v 800k t Est_a2.mp4ffmpeg-i test.mp4-threads 8-vcodec mpeg4-b 200k test_a3.mp4--Open 8 threads, compression rate-CRF the smaller the resolution the higher ffmpeg-i Test.mp4-thre Ads 8-CRF 22-y-vcodec mpeg4-strict ex

Analysis of QT internationalization (when the source code contains Chinese characters)

hellotr_en.ts file, "Hello! "A bunch of garbled characters appear! Of course, it's hard to use linguist for translation, because you don't know what the garbled content is. To solve this problem, let's start with the source lupdate.Lupdate Purpose: extract the string to be translated from the source code file. Suffixes of currently supported source code files: java,jui,ui,c,c++,cc,cpp,cxx,ch,h,h++,hh,hpp,hxx,js,qs,qml Here we only care about the source code files related to c ++ (qtjambi, qts

jquery implementation Thumbnail Preview Slider instance

This example describes the thumbnail preview slider for jquery implementations. Share to everyone for your reference. Specifically as follows: The effect is as shown in the following illustration: The main code is as follows: ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26-27--28 29---30 31--32 33 34 35 36 37 38-39 40 41 42 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 5 86 8

jquery implementation Thumbnail Preview Slider instance _jquery

This example describes the thumbnail preview slider for jquery implementations. Share to everyone for your reference. Specifically as follows: The effect is as shown in the following illustration: The main code is as follows: (function ($) {$.fn.thumbnailslider = function (options) {var opts = $.extend ({}, $.fn.thumbnailslider.defaults, Options) ; Return This.each (function () {var $this = $ (this), o = $.meta? $.extend ({}, OPTs, $pxs _container.data ()): opts; var $

Nginx basic Knowledge ———— in the RTMP module in the HLS topic (translation document)

dump.rdb hlskeys qtsingleapp-aegisg-46d2 vm.log[email protected]:/tmp# cd hlskeys/[email protected] :/tmp/hlskeys# lss0000_8-156.key s0000_8-166.key S0000_8-176.key Simultaneous HLS storage files:Playlist file:[Email protected]:/tmp/hls# Lss0000_8-224. TS s0000_8-227. TS s0000_8- the. TS s0000_8-233.

Description of various PSI/SI tables in DVB-C

Abstract: combined with the psi/Si information table in a TS stream of DVB-C Cable Digital TV, this paper analyzes the PSI Information of MPEG-2 and the various tables in SI information of DVB, this gives you a clearer understanding of the functions and functions of each table. Key words: Digital TV; TS stream; PSI information; SI information; Electronic Program Guide EPG 1. Introduction In digital TV, all

Architecture (iii) MONGODB installation configuration and cluster construction

ClusterDefine the replica set configuration variable, here _id: "Repset" and the above parameters--replset Repset consistentconfig={_id: "Repset", Members:[{_id:0,host: "132.232.47.139"},{_id:1,host: "45.40.199.46"},{_id:2,host: " 132.232.40.31 "}]}Enter the above variables and enter the following description no problemRs.initiate (config)Execute the above statement if the output below shows no problem1.8.5 View cluster statusRs.status (){"Set": "Repset", "date": Isodate ("2018-08-05t12:20:02.0

The compilation process for Hive SQL

First, the tablescanoperator is generated according to the Sub Queryblock QB2#aliasToTabs {du=dim.user, c=detail.usersequence_client, p=fact.orderpayment} TableScanOperator(“dim.user”) TS[0] TableScanOperator(“detail.usersequence_client”) TS[1] TableScanOperator(“fact.orderpayment”) TS[2] First-order traversal QBParseInfo#joinExpr Generatio

Hive SQL Compilation process

= Reducesinkoperator + joinoperator qbparseinfo#desttowhereexpr = Filteroperator Qbparseinfo#desttogroupby = Reducesinkoperator + groupbyoperator Qbparseinfo#desttoorderby = Reducesinkoperator + extractoperator Since the Join/groupby/orderby all need to be done in the reduce phase, the operator will be a reducesinkoperator before generating the corresponding action, combining the fields and serializing them into reduce key/value, Partition Key Next detailed analysis of the sam

Treeset sorting, storing custom objects, and user-defined comparator example

Java. util. treeset; public class treesetdemo {public static void main (string [] ARGs) {treeset Ts = new treeset (); Ts. add (new student ("tan1", 21); Ts. add (new student ("tan3", 20); Ts. add (new student ("tan2", 23); Ts. add (new student ("tan5", 21); iterator it =

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