codec finder

Since the last time the system was reinstalled, the driver of the sigmatel high definition audio codec device was not installed. It has been plagued for several months. To watch movies and listen to music, you must switch to Linux, fortunately, this problem was finally solved today and I wrote it to myself: If the driver was not installed in the past, I went online to find a method. The solutions provided by enthusiastic netizens were the same: "Inst

Amr generally refers to AMR-Nb, which is 8 KHz sampling and has 8 bit rate encoding/decoding methods.Algorithm. In addition, there are nine bit rate encoding algorithms for AMR-WB, namely 16 KHz sampling. Because the AMR-WB sampling rate is high, the complexity is about twice that of AMR. Both AMR and Amr-WB belong to the speech codec, which does not work well in Audio Encoding. To improve the audio encoding performance, Amr-WB + appears. Amr-WB + sup

1. Image compression is divided into lossy compression and lossless compression: Lossless compression is not to destroy the image information, or all the image information can be restored by a certain algorithm compression, lossless compression can not reduce the memory footprint of the image, if you want to reduce the image consumption of memory capacity, it is necessary to use lossy compression. lossy compression2. Common image format:1)2) GIF is a graphic Interchange Format (Graphics Intercha

,kcmblockbufferunallocatedblocker r = -12707,kcmblockbufferinsufficientspaceerr = -12708,kcmsamplebuffererror_allocationfailed = -12730,kCMSampleBu ffererror_requiredparametermissing = -12731,kcmsamplebuffererror_alreadyhasdatabuffer =-12732, Kcmsamplebuffererror_buffernotready = -12733,kcmsamplebuffererror_sampleindexoutofrange =-12734, kcmsamplebuffererror_bufferhasnosamplesizes = -12735,kcmsamplebuffererror_bufferhasnosampletiminginfo =-12736, KcmsamplebUffererror_arraytoosmall = -12737,kcmsa

EncodingDecodingNSData *decodeddata = [[NSData alloc] initwithbase64encodedstring:base64string options:0]; NSString *decodedstring = [[NSString alloc] Initwithdata:decodeddata encoding:nsutf8stringencoding]; NSLog (@ "%@", decodedstring); Foo Swiftlet plainString = "foo"EncodingLet Plaindata = plainstring.datausingencoding (nsutf8stringencoding) Let base64string = Plaindata?. Base64encodedstringwithoptions (. Allzeros) println (base64string!)//zm9vDecodingLet Decodeddata = NSData (base64en

1. What is JSON serialization and binary serializationUsually we use JSON as a transmission in the program, and JSON is serialized as JSON. and binary serialization is usually when we convert the data to binary for transmission, and then we do all kinds of conversion operations2. Applicable scenariosSmall series think that when the data using JSON transmission, the application and the Web and control layer conversion, front-end JS to the JSON support is good, and the program internal system and

Vs2013 Create python file, in the file is not entered in Chinese, encoded as utf-8 ,Then, after entering a few lines of Chinese, again with notepad++ to see its code as follows, in vs Run also error (run with cmd will not):Based on the experience, this is the problem of character encoding, try to convert the python file into utf-8 , directly on the notepad++ turn utf-8 no BOM encoded format, save, open vs, there will be the following tipsDo not choose No , or you may be prompted with the follow

[Python] UnicodeEncodeError: 'gbk' codec can't encode character solution, Compiling a python script in windows causes serious Encoding Problems. When writing network data streams to files, we will encounter several encodings: 1: # encoding = 'xxx' here (that is, the first line of the python file) encoding refers to the encoding of the python script file itself, irrelevant. As long as XXX is the same as the file encoding. For example, you can set va

How to solve the "UnicodeDecodeError: #39; ascii #39; codec" problem when using yum in CentOSProblem When CentOS 6.5 is installed, the following error occurs when you plan to use the yum Installer: Loading mirror speeds from cached hostfileTraceback (most recent call last): File "/usr/bin/yum", line 29, in Solution Perform the following operations in sequence: cd /var/lib/rpm/rm -i __db.*yum clean allyum history new

Video surveillance industry G711 codec [continued] collection knowledge, video surveillance g711 1. reference factors for Buffer collection: A. How long does the buffer take, for example, ms or 50 ms; B. The number of bytes received per second; BufferSizeM = dwBytesPerSec * dwLatencyInMilliseconds/1000; 2. Examples: Collect sound: If the encoding format is G711 BufferSize = 16/8*8000*(TimeMs)/1000 Note: 16/8 occupies 2 bytes for each Sample o

Basics: The default encoding format in Python is utf-8. So how can we not press Utf-8 to decode? Confused AH.Solution to the problem:Use notepad++ to open test.py discovery file storage format is ANSIJust change the format of the saved file to UTF-8.Open test.py >> menu bar with notepad++ only encoding (encoding) >> Convert to UTF-8 (converted to utf-8)In the run test.py problem resolutionThat is, the default file encoding format of a python differentPython3: (Unicode error) ' Utf-8 '

Mediaplayer.ontimedtextlistener this interface and upload it to the Setontimedtextlistener () method.Audio effectsAudioeffect This class now supports additional audio preprocessing types when capturing to audio:As an acoustic echo Canceller (AEC), the Acousticechocanceler class eliminates the effects of signals from remote capture to audio signals.As an automatic gain control (AGC) Automaticgaincontrol, this class automatically recovers the normally captured signal output.As a noise suppressor

System FrameworkPrinciple Description:Adopt distributed network system, install video client software on mobile phone, install camera Server software on remote server, collect camera real-time video, carry out H264 encoding, and publish it in the form of custom TCP server, and use the client software to enter the IP address of the server. Connect and watch live video.Feature Description:Currently learning version supports capture 320*240 video, server-side support boot and 3322 dynamic domain na

Premise:Already installed PIP (PIP installation I refer to this blog reprint script home Steps, the experiment can be successful)1. In the cmd input command go to the PIP installation directory:2. Error occurred after running3. The error in step 2 should be related to encoding. Search Baidu after the solution:In your Python installation directory of the Lib directory, find site.py, modify the Def setencoding () methodDef setencoding (): ..... .... If 0: # Enable to support locale a

Writing Python scripts under Windows is a serious coding problem.When you write a network data stream to a file, we encounter several encodings:1: #encoding = ' XXX ' here (i.e. the contents of the first line of the Python file) refers to the encoding of the Python script file itself, which does not matter. As long as xxx and the file itself is the same code. For example, notepad++ "format" menu can be set up a variety of codes, it is necessary to ensure that the menu set encoding and encoding x

Problem: Error when direct print in cmd A page has been tested before and there is no problem with coding. This is the wrong time to crawl a similar page Ideas: Because this does not seem to be the overall coding problem, so I directly see the error character code ' \xa0 ', found that this is Unicode under the ' nbps ', and this code does not exist in GBK Try: Replace (U ' \xa0 ', U ')-Report the same mistake, don't know why ... Encode (' GBK ', ' ignore '). Decode ('

(Buffer,len,cximage_format_jpg);//To construct the data in buffer buffers into an image objectdelete [] buffer;cdc* hdc = m_picture. GetDC ();M_bitmap = image. Makebitmap (HDC-GT;M_HDC);Hbitmap h0ldbmp = m_picture. SetBitmap (M_BITMAP);if (h0ldbmp) DeleteObject (h0ldbmp);if (HDC-GT;M_HDC) m_picture. ReleaseDC (HDC);if (m_bitmap) DeleteObject (M_BITMAP);}Cave Court scattered PeopleSource: http://phinecos.cnblogs.com/This blog complies with the Creative Commons Attribution 3.0 License, which you

Depending on the error prompt, locate the file that was faulted.As you can see, the file that was faulted is the __init__.py file in the logging module.According to the directory, locate this file and open itSearch the contents of this file for ' encoding 'The default value of encoding found in the Filehandler class is none.Manually change it to encoding = ' utf-8 'Error resolution. Can write normallyLogging error. Unicodeencodeerror: ' ASCII ' codec

# coding = ASCIIImport JSONImport PickleImport SysImport OS The first parameter in the Decode () and Encode methods is the encoded format, and the second is the type of processing to be used when the conversion occurs (ignore: ignore, cannot convert, or empty; Replace: With? instead Because character encoding is Unicode by default in Python3, all direct calls to the Encode method implement character encoding conversions, since ASSCII characters do not contain Chinese characters, so decod

= Result_path +'\\'Result_path= Result_path +P_path## Add separator between UNC and Non-absolute path if(Result_path andRESULT_PATH[0] not inch '\\/' andresult_drive andResult_drive[-1:]! =':'): returnResult_drive + Sep +Result_pathreturnResult_drive + Result_pathSolution 2: (PS: This is the most online solution of the post, not necessarily able to solve, the landlord himself is in accordance with the resolution of 1 solved the problem)Note the Python syntax indentation principle.py