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Android GIF Codec

Recently, I have been studying the implementation of GIF on Android and have some experiences. Now I want to share it with you. At first, I saw the implementation of GIF on my mobile phone. It was an application of GIF kuaishou on the iPhone. I felt pretty good and wanted to implement it on Android. I checked it later. In the past, there was also a GIF kuaishou on Android, And the next one provided a good experience. Decompilation (sorry, you should use obfuscated compilation ). JavaAlgorithmB

[Python] ASCII codec can't decode byte 0xe8 in position 0: ordinal not in range (128)

1. Problem description: a Scheduled Update Project written in Python under the Django framework, which is tested in windows and tested in Linux, reports the following error: ASCII codec can't decode byte 0xe8 in position 0: ordinal not in range (128) 2. Cause Analysis: character problems. Character problems can easily occur when switching from a Windows system to a Linux system. 3. Solution: Add the following three lines to the problem page: Impor

Debug am335x ALSA Codec

[Email protected]: ~Aplay-l* *** List of playback hardware devices ****Card 0: audio [pcm051 audio], device 0: wm8976 wm8976-hifi-0 []Subdevices: 1/1Subdevice #0: subdevice #0[Email protected]: ~Arecord-l** ** List of capture hardware devices ****Card 0: audio [pcm051 audio], device 0: wm8976 wm8976-hifi-0 []Subdevices: 1/1Subdevice #0: subdevice #0Card 1: Camera [USB 2.0 Pc camera], device 0: USB audio [USB audio]Subdevices: 1/1Subdevice #0: subdevice #0 Aplay-f CD-D plughw: 0, 0/home/1.wav//

List the codec files on a computer

Description Uses WMI to return information about all the audio and video codec files installed on a computer.Script code CopyCodeCode: var wbemflagreturnimmediately = 0x10;VaR wbemflagforwardonly = 0x20; VaR ob1_miservice = GetObject ("winmgmts: \\\\\. \ Root \ cimv2 ");VaR colitems = obw.miservice. execquery ("select * From win32_codecfile", "WQL ",Wbemflagreturnimmediately | wbemflagforwardonly ); VaR enumitems = new enumerator (colitems );F

Android Base64 URI codec bad base-64 exception handling

This essay introduces a commonly used BASE64 exception condition that is not easily found when encoding and decoding URIs.Android uses NANOHTTPD as an HTTP server to provide HTTP data stream transmission to the application, using BASE64 to encode a resource, as follows (debug):Resources:/storage/emulated/0/movies/the Mountain.mp4Base64 after encoding: l3n0b3jhz2uvzw11bgf0zwqvmc9nb3zpzxmvvghlie1vdw50ywlulm1wna==At this point the link to this resource is this: http://xxxxxxxxxxxx/L3N0b3JhZ2UvZW11b

Day1 unicodeencodeerror: ' GBK ' codec can ' t encode character ' \xa0 ' in position 2490:illegal multibyte sequence error hints

Get the information of the Web page get way  #coding =utf-8#pip install requests# Direct get to Web page information import requestsfrom BS4 Import beautifulsoupresponse = Requests.get (' https://www.sogou.com/web?query= infrastructure ') print (Response.text) #打印搜索出来的全部信息 # find     1. Error codesTraceback (most recent): File "d:/pycharmprojects/crawler/day1/s1.py", line    2. Incorrect encoding format  3. Change all to Utf-84. Successful execution  Day1 unicodeencodeerror: ' GBK '

Python3 under Unicodedecodeerror: ' ASCII ' codec cant decode. (128)

Today, I'm going to run the Lenet program with Keras, and the result is always coding wrong.The source code is written in 2.7, and the encoding format is utf-8. And then try to use the online methods do not apply, and finally solved theSource:data = Gzip.open (R' C:\Users\Administrator\Desktop\Digit recognizer\mnist.pkl.gz ')Train_set,valid_set,test_set = cpickle.load (data)After modification:  With Gzip.open (R ' C:\Users\Administrator\Desktop\Digit recognizer\mnist.pkl.gz ') as F:Train_set, va

Read txt text in Python appears: SyntaxError: (Unicode error) ' Unicodeescape ' codec can ' t decode bytes in position 2-3: truncated \uxxxxxx XX Escape Problem Solving

The path in Windows is a backslash \, but the backslash \ has the meaning of escape characters in Python, so when writing Windows file paths in a py file, pay special attention to the use of backslashes.Here are three ways to solve the problem: 1 way one: escaped by 2 3 c:\\users\xxx\desktop\a.txt " Span style= "COLOR: #008080" > 4 5 Mode two: explicitly declaring a string without escaping 6 7 r" c:\users\xxx\desktop\a.txt " 8 9 Method Three: Use the path of Linux 1

H264 parameter setting based on V4L2 MFC video codec

, v4l2_cid_mpeg_video_h264_max_qp, Qscodemaxctrls[33].value = 10;//H264_MIN_QP, V4L2_CID_MPEG_VIDEO_H264_MIN_ QP, qscodeminctrls[35].value = 4; H264_profile, v4l2_cid_mpeg_video_h264_profile, profileidcctrls[41].value = 1; MB_RC, v4l2_cid_mpeg_video_mb_rc_enable, enablembratecontrolctrls[50].value = 1900; Slice_max_bytes, V4l2_cid_mpeg_video_multi_slice_max_bytes,????? Ctrls[51].value = 1; SLICE_MAX_MB, v4l2_cid_mpeg_video_multi_slice_max_mb, sliceargumentctrls[52].value = 0; Slice_mode, V4l2_ci

MFC Video codec based on V4L2

code, the original data directly decoded output to the LCD, extended to the entire screenCPU usage when decoding output to 1920x1080 displaytasks:155 Total, 2 running, 153 sleeping, 0 stopped, 0 zombie%cpu (s): 15.8 us, 14.1 sy, 0.0 ni, 66.8 id,Share filesCoding:http://download.csdn.net/detail/liujia2100/8568845Decoding:http://download.csdn.net/detail/liujia2100/8568891You can test the mfc5.1 version of the platform s5pv210 exynos4412.Currently due to mfc5.1 hardware limitations, the MFC

"Python" read the CVS file error: Unicodedecodeerror: ' Utf-8 ' codec can ' t decode byte 0xb1 in position 6:invalid start byte

There are now files in the data.csv file encoding format: ANSIData.csv1|1|1| Beijing 2|1|2| Tianjin 3|1|3| Shanghai 4|1|4| Chongqing city 5|1|5| Shijiazhuang City 6|2|5| Tangshan 7|3|5| Qinhuangdao Shi 8|4|5| Hanhan 9|5|5| Xingtai 10|6|5| Baoding 11|7|5| Zhangjiakou 12|8| 5| Chengde 13|9|5| Cangzhou 14|10|5| Langfang 15|11|5| Hengshui 16|1|6| Taiyuan 17|2|6| DatongEnter the following code in the Python console:>>> Import pandas as PD>>> df = pd.read_excel (' c:\\users\\thinkpad\\desktop\\data.cs

"Video codec • Learning note" 7. Entropy Coding algorithm: basic knowledge & Huffman coding

,"Input.txt") {cout "error:opening input file failed!"return -1; }CharBUF = Inputfile.get ();the ASCII code of the character is used as an index, and an ASCII code occupies one byte, a total of 256 possibleCharnode nodearr[ the] = { {0,0} }; while(Inputfile.good ()) {cout //Create priority queues, arranged from small to largepriority_queue for(inti =0; I the; i++) {if(Nodearr[i].frequency >0) {cout "Node"": ["", ""]"NewMinheapnode (Nodearr[i].character, nodearr[i].frequency)); } }//Us

Quick understanding of node. JS character encoding, process and Base64 codec principle

var buf1 = new Buffer (' A ', ' ASCII '); ASCII-encoded character ' a ', 61 exists in the computer Console.log (BUF1); var b = buf1.tostring (' base64 '); Base64 Decoding----Get the string ' yq== ' Console.log (b); var buf2 = new Buffer (b, ' base64 ');//' yq== ', base64 code- > 61 is stored in the computer Console.log (BUF1); Console.log (buf2.tostring (' ASCII '));//. ASCII decoding to get the character ' a 'Quick understanding of node. JS character encoding, process and Base64

List the Codec Files on a computer_javascript tips

Description Uses WMI to return information about all the audio and video codec files installed on a computer. Script Code Copy Code code as follows: var wbemflagreturnimmediately = 0x10; var wbemflagforwardonly = 0x20; var objWMIService = GetObject ("winmgmts:\\\\.\\root\\cimv2"); var colitems = objWMIService.ExecQuery ("SELECT * from Win32_codecfile", "WQL", wbemflagreturnimmediately | wbemFlagForwardOnly); var enumitems = new

List the Codec Files on a computer_javascript tips

Uses WMI to return information about all the audio and video codec files Installed on a computer. This script requires both Windows PowerShell and the corresponding version of the. NET Framework. For more information On downloading these items are the Windows PowerShell download page (right). Copy Code code as follows: $strComputer = "." $colItems = Get-wmiobject-class "Win32_codecfile"-namespace "root\cimv2" -computername $strComputer

SyntaxError: (Unicode error) ' Unicodeescape ' codec can ' t decode bytes in position 2-3:

Learning python, using os.path.getsize (' c:\user_weblogic.dmp ') to get the size of a file, try a few, can produce results. As a result, when you try this file, you always find an error: SyntaxError: (Unicode error) ' Unicodeescape ' codec can ' t decode bytes in position 2-3: truncated \uxxxx escape The same is true for a awrrpt.html file name .... It was due to the existence of \u, which led to the escape of Python, which could not find the cor

SSD tensorflow:unicodedecodeerror: ' utf-8 ' codec can ' t decode byte 0xff in position 0:invalid start

When we run the SSD TensorFlow version, the following issues occur, and the command I run is: dataset_dir=voc2012/ output_dir=tfrecords python tf_convert_data.py \ --dataset_name=pascalvoc \ --dataset_dir=${dataset_dir} \ --output_name=voc_2012_train \ --output_dir=${output_dir} Through Baidu is not found GitHub above the issues above the answer, I am here to solve the problem to write out, hoping to help you play SSD. The error message is: Converting image 1/5138traceback

Audio codec and real-combat article (1) PCM go to AAC (AAC encoding)

Audio codec and real-combat article (1) PCM go to AAC (AAC encoding)Author: Liu · Poechant Blog: blog.csdn.net/poechant e-mail: zhongchao.ustc@gmail.com Date: April 7th, 2012 This uses FAAC to implement AAC encoding. 1 Download and install FAAC The installation process here is implemented on MAC and Linux, and windows can be similar to the reference. wget http://downloads.sourceforge.net/faac/faac-1.28.tar.gz tar zxvf faac-1.28.tar.gz cd faac-1.28 . C

"Multimedia Codec" AAC

This article is mainly about the Raytheon analysis of AAC, the article links are as follows:Getting Started with AV data processing: AAC audio bitstream parsinghttp://blog.csdn.net/leixiaohua1020/article/details/50535042 Introduction: The decoding of AAC files is that the AAC stream is decomposed into AAC source stream (bare stream), and the bare stream is encoded and decoded as the input of the codec library.AAC source stream is what we call the data

HDBN codec principle N-order high-density bipolar code

the B pulse polarity is the same as the V pulse polarity. -------------------------------------------------------------- ----*/such as:NRZ Code:   100001000011000011ami code:   -1   0   0   0   0 +10   0   0   0-1 +1 0   0   0   0 -1 +1HDB3 Code:-1   0   0   0 -v +10   0   0 +v-1 +1–b 0   0-V +1-1 Although coding rules for HDB3 codes are more complex , but the decoding is relatively simple. As seen from the above principle: each break symbol V is always the same polarity as t

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