Recently, the company is busy, its own director of the product is busy on-line, a long time has not updated the blog.Recently, the product is making a WiFi camera, the camera and mobile phone simultaneously connected in a LAN, you can realize the camera image in the mobile phone display, and camera video and other functionsMJPEG is a picture of the transmission of a certain number of images per second, the screen will be a coherent movement. Therefore, memory consumption can be significant. And
First, FFmpeg decoding process: 1, register all container formats and Codec:avcodec_register_all (), 2, find the corresponding decoder: Avcodec_find_decoder (av_codec_id_ MJPEG); 3, allocating codec parameter data structure AVCODEC_ALLOC_CONTEXT3 (Avcodec *codec); 4, for partial codecs the data structures that are allocated in the previous step are initialized because some parameters are not valid in the video stream; 5, Open codec: Avcodec_open2
1. Libjpeg Library Migration1.1) Unzip the jpegsrc.v6b.tar.gz and enter its directory1.2) Configure the source code./configure CC=ARM-LINUX-GCC--host=arm-linux--prefix=/usr/local/jpeg--enable-shared--Enable-static (if prompted wrong, first./configure after make clean and then reconfigure)1.3) Make compile source code1.4) make install here to suggest that there is no that text directory, so we have to manually create, and then make the install.2. Transplant Mjpegstreamer 2.1) Unzip mjpg-streamer-
Motion JPEG (mjpeg,motion Joint Photographic Experts group,fourcc:mjpg) is a video compression format in which each frame image uses JPEG encoding. In general, we use to see the use of videotoolbox processing is a compressed video format, here I introduce a videotoolbox decoding MJPEG video encoded format of the method, we also use ffmpeg read a MJPEG encoded for
pageMv.addobject ("datamsg", Ex.getmessage ()); returnMV; } @RequestMapping ("/first") //The type conversion work must be performed before the actual handler method executes. PublicString Dofirst (Date birthday,intAgethrowsException {System.out.println ("222222222222222222222"); System.out.println (Birthday+ "==========="); System.out.println ( Age+ "==============="); return"/index.jsp"; }}4. MapperXmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"Xmlns:context= "Http://www.springfr
; requestmappinghandlermappingAnnotationmethodhandleradapter-> RequestmappinghandleradapterAnnotationmethodhandlerexceptionresolver-> ExceptionhandlerexceptionresolverAll of the above are automatically registered after using the Annotation-driven.and the corresponding respectively provided abstracthandlermethodmapping, Abstracthandlermethodadapter and Abstracthandlermethodexceptionresolver to make it easier for users to implement custom implementation classes.
Spring MVC
Java code
As can
There is a field in the action that is of the birthday or date type. When we pass the value, it must be written as to automatically convert the type, however, in some cases, you may need to write 19990101 so that automatic type conversion is not performed by default. In this way, you can write a custom type converter to achieve conversion.
Struts2 has two types of converters:
Partial: it applies to an action conversion type.
First, you need to customi
Aiseesoft PDF to Word Converter is a professional PDF converter that converts PDF files to Word documents in high quality, supports converting PDFs to DOC, DOCX, or RTF formats, and also supports batch conversions.Aiseesoft PDF to Word Converter can convert a generic text PDF to a Word document, or a scanned or picture PDF, with a powerful OCR document recognitio
Custom type converter Convert, converter convert
// Specify a type converter (convert String to Date) ConvertUtils. register (new Converter () {@ Override public Object convert (Class clazz, Object value) {// convert string to date SimpleDateFormat format = new SimpleDateFormat ("yyyy-MM-dd"); Date parse = null; try {p
Epub to PDF Converter is an easy-to-use ebook converter that converts a document in epub format into a PDF file for all types of reading devices.Epubor epub2pdf Converter Software has built-in transformation configurations for many reading devices, including Amazon (Kindle), Apple (Ipad/iphone), Nook, Kobo, Sony eReader, etc. You can also customize the output dev
Struts2 registers a local converter and a local Converter
To implement a custom converter, You need to inherit the defatypetypeconverter class or the StrutsTypeConverter class from the objects to be converted, and obtain the entry of a type converter to implement the developer's own type
Typeconverter class. The description in msdn provides a unified method to convert the value type to other types, as well as access standard values and sub-attributes.Let's take a look at the example to translate a string into a type converter with a point structure.Public class pointconverter: typeconverter {Public override bool canconvertfrom (itypedescriptorcontext context, type sourcetype ){If (sourcetype = typeof (string) {return true ;}Return bas
TCP transmission: Use the socket service to implement a text converter, socket Text Converter
Reprinted please indicate the source, thank you: http://blog.csdn.net/harryweasley/article/details/45665291
I recently read a teaching video and learned socket programming. There is an example in which I feel that it is well written. I will organize it here to help me recall and view it.
Requirement: Text
object to a string in some way.
To achieve these transformations, there is a magician in Struts 2.0 who can help you--converter. With it, you don't have to repeat this code over and over again:
Date birthday = dateformat.getinstance (dateformat.short). Parse (strdate);
OK, now let's take a look at an example.
Converters--hello World
At the end of my last article, "Internationalizing in Struts 2.0 (i18n) Your application," I gave an example tha
A type converter is a more important element in implementing a custom server control property. In this paper, the basic concepts and implementation methods of type converters are introduced.1. type converter Basic ConceptsA type converter is an accessible feature implementation of a custom server control. It is primarily used to perform bidirectional conversions
J2ME MIDP Currency Converter Tutorial for NetBeans IDE 4.0
Feedback http://www.netbeans.org/kb/articles/tutorial-currencyconverter-40.html
Feedback
The Currency Converter application you are build in this tutorial shows you to:
Start a J2ME MIDP project
Code a working J2ME MIDP application, or MIDlet, using the IDE
Create project configurations to test the application ' s performance on two different de
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