decode

leetcode 91. Decode Ways

由 本小妞迷上赌 提交于 2020-01-19 00:41:51
function numDecodings(s) { if (!s.length || s.charAt(0) === '0') { return 0 } var dp = new Array(s.length + 1).fill(0) dp[0] = 1; for (var i = 1; i < dp.length; i++) { dp[i] = (s.charAt(i - 1) == '0') ? 0 : dp[i - 1]; if (i > 1 && (s.charAt(i - 2) == '1' || (s.charAt(i - 2) == '2' && s.charAt(i - 1) <= '6'))) { dp[i] += dp[i - 2]; } } return dp[s.length]; } 来源： https://www.cnblogs.com/rubylouvre/p/12210814.html

decode HTML entities in php

由 可紊 提交于 2020-01-17 03:18:05
问题 I have this string: <p>ëen twéé drïe viêr vijf zes ç nnneeeeeeggeeeeennn<br></p> after this string goes through multiple applications i end up with the following string: <p>ëen twéé drïe viêr vijf zes ç   nnneeeeeeggeeeeennn<br></p> how do i decode this encoded string back to the original? I tried: htmlspecialchars_decode(string) This returns: ëen twéé drïe viêr vijf zes ç nnneeeeeeggeeeeennn htmlspecialchars_decode(htmlspecialchars_decode(string)); This returns: ëen twéé drïe

Oracle数据库自带了decode()函数

由 喜夏-厌秋 提交于 2020-01-15 21:59:52
Oracle数据库自带了decode()函数，函数的使用方法如下： SELECT emp.ename, emp.job, emp.sal, decode(job, 'manager', sal * 1.2, 'ANALYST', sal * 1.1, 'salesman', sal * 1.05, Sal) FROM emp; 类似于java中学过的case语句，根据不同的条件进行不同的操作，但是在Mysql中是不支持这个函数的想要实现上面的功能，Mysql中编写的代码如下： SELECT emp.ename, emp.job, emp.sal, (CASE WHEN emp.job = 'manager' THEN sal * 1.2 WHEN 'ANALYST' THEN sal * 1.1 WHEN 'salesman' THEN sal * 1.05 ELSE Sal END) as bonus FROM emp; 来源： https://www.cnblogs.com/coder-wf/p/12198864.html

HTML5 video MEDIA_ERR_DECODE occurs randomly

由 泄露秘密 提交于 2020-01-15 05:58:08
问题 I'm developing the project witch contains 6 audio and video elements which plays one after another. The code order before issue is like that: preloading all media resources till "canplaythrough" playing video-1 stoping video-1 and playing audio-1 stoping audio-1 and playing video-1 again. Then the video-1 is playing 2-3 seconds and stops sending the error code 3 (3 = MEDIA_ERR_DECODE - error occurred when decoding). I have tried to play the same video just by link and it is playing fine. Also

Convert all HTML special chars to UTF-8 in PHP?

由 喜夏-厌秋 提交于 2020-01-14 10:55:03
问题 Can somebody help me? How can i convert all HTML special chars to UTF-8 Example: Hello&nbsp;Word! P&amp;H convert to: Hello Word! P&H 回答1: Use html_entity_decode() and explicitly specify the charset: $string = html_entity_decode($string, ENT_QUOTES, "utf-8"); for future reference: PHP string functions 来源： https://stackoverflow.com/questions/4775842/convert-all-html-special-chars-to-utf-8-in-php

Convert all HTML special chars to UTF-8 in PHP?

由 最后都变了- 提交于 2020-01-14 10:54:11
问题 Can somebody help me? How can i convert all HTML special chars to UTF-8 Example: Hello&nbsp;Word! P&amp;H convert to: Hello Word! P&H 回答1: Use html_entity_decode() and explicitly specify the charset: $string = html_entity_decode($string, ENT_QUOTES, "utf-8"); for future reference: PHP string functions 来源： https://stackoverflow.com/questions/4775842/convert-all-html-special-chars-to-utf-8-in-php

内存分析（二） AVFrame

由 心不动则不痛 提交于 2020-01-13 16:25:38
AVFrame结构体内有很多成员变量，我们肯定不可能都分析，只关心我们需要的，从实际应用场景出发，用到avframe只要有4个场景，1，init，2，decode,3 encode 4,free 从decode说起，decode涉及的函数是avcodec_decode_video2(),这个函数代码较长，我就不粘了，其实我们关心的点很简单， 它就做了2件事，先调用了av_frame_unref(picture); 然后decode, 填充picture void av_frame_unref(AVFrame *frame) { int i; if (!frame) return; wipe_side_data(frame); for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++) av_buffer_unref(&frame->buf[i]); for (i = 0; i < frame->nb_extended_buf; i++) av_buffer_unref(&frame->extended_buf[i]); av_freep(&frame->extended_buf); av_dict_free(&frame->metadata); av_buffer_unref(&frame->qp_table_buf); get_frame

c++ decode CCITT encoded images in pdfs

由 痴心易碎 提交于 2020-01-13 11:39:07
问题 I'm trying to extract all images out of PDF files in C++. I'm stuck in decoding CCITT encoded images. Does anyone know an opensourced code for this? I use the ImageMagick Magick++ Library, is it possible to do the decoding with this library, too? Thanks for your help! 回答1: CCITT is one of the encodings TIFF supports, though in a PDF file the CCITT images are probably raw data. You can convert a raw CCITT image into a Tiff image using Fax2Tiff. It should be easy enough to work with the image

BitmapImage decoding speed performance wpf

由 你。 提交于 2020-01-13 09:41:11
问题 I have 5 images all the same pixel height and pixel width (2481 * 3508 for that matter). But, one is gif, one jpeg, one png and one bmp. Now I render them into a BitmapSource with (1) two thirds of the original pixel height for DecodePixelHeight and (2) original pixel height for DecodePixelHeight. First scenario: bitmapImage.BeginInit(); bitmapImage.CreateOptions = BitmapCreateOptions.IgnoreColorProfile; bitmapImage.CacheOption = BitmapCacheOption.OnLoad; bitmapImage.DecodePixelHeight = 2/3 *

C++ FFmpeg distorted sound when converting audio

由 醉酒当歌 提交于 2020-01-12 05:51:09
问题 I'm using the FFmpeg library to generate MP4 files containing audio from various files, such as MP3, WAV, OGG, but I'm having some troubles (I'm also putting video in there, but for simplicity's sake I'm omitting that for this question, since I've got that working). My current code opens an audio file, decodes the content and converts it into the MP4 container and finally writes it into the destination file as interleaved frames. It works perfectly for most MP3 files, but when inputting WAV
订阅 decode