compression

问题 I want to compress locally saved video file to a smaller size in order to upload to a server. Since i used MediaCodec , i have found some tips to compress video . Here are the steps that i followed 1) . Extracted the media file using MediaExrtactor and Decoded it. 2) . Creates the Encoder with required file format 3) . Create muxer to save file in local storage. (not complete) Question : But i dont know how to encode the already decoded stream and save the stream in to the local storage using

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 8 years ago . I'm looking for a free JavaScript obfuscator. Would compression be enough? What tools would you recommend? Of course, I don't need

问题 I've been trying to make an installer by Inno Setup which only supports zip/bzip/lzma/lzma2 compression methods. I packed my archive by FreeArc (output file extension is .arc but renamed it to .bin) but Inno Setup is not able to extract it. I searched on internet how to implant arc decompression into Inno Setup but all sites refer to FreeArc official website which is dead for a while. All I need is the code to use the necessary dll files to give Inno Setup the ability to decompress arc

问题 I am receiving data as an " ZLIB " compressed inputstream. Using Javascript/Ajax/JQuery, I need to uncompress it on the client side. Is there a way to do so? Please help. I already have this working in JAVA as below, but need to do this on Client Side. url = new URL(getCodeBase(), dataSrcfile); URLConnection urlConn = url.openConnection(); urlConn.setUseCaches(false); InputStream in = urlConn.getInputStream(); InflaterInputStream inflate = new InflaterInputStream(in); InputStreamReader

问题 General Use-Case Imagine a client that is uploading large amounts of JSON. The Content-Type should remain application/json because that describes the actual data. Accept-Encoding and Transfer-Encoding seem to be for telling the server how it should format the response. It appears that responses use the Content-Encoding header explicitly for this purpose, but it is not a valid request header. Is there something I am missing? Has anyone found an elegant solution? Specific Use-Case My use-case

问题 I like to zip multiple files which are being created dynamically in my web application. Those files should be zipped. For this, i dont want to use any third-party tools. just like to use .net api in c# 回答1: Use System.IO.Packaging in .NET 3.0+. See this introduction to System.IO.Packaging If you're able to take a .NET 4.5 dependency, there's a System.IO.Compression.ZipArchive in that universe; see walkthrough article here (via InfoQ news summary article here) 回答2: With the release of the .NET

问题 I like to zip multiple files which are being created dynamically in my web application. Those files should be zipped. For this, i dont want to use any third-party tools. just like to use .net api in c# 回答1: Use System.IO.Packaging in .NET 3.0+. See this introduction to System.IO.Packaging If you're able to take a .NET 4.5 dependency, there's a System.IO.Compression.ZipArchive in that universe; see walkthrough article here (via InfoQ news summary article here) 回答2: With the release of the .NET

问题 I would like to reduce My Bitmap image size to maximum of 640px. For example I have Bitmap image of size 1200 x 1200 px .. How can I reduce it to 640px. 回答1: If you pass bitmap width and height then use: public Bitmap getResizedBitmap(Bitmap image, int bitmapWidth, int bitmapHeight) { return Bitmap.createScaledBitmap(image, bitmapWidth, bitmapHeight, true); } If you want to keep the bitmap ratio the same, but reduce it to a maximum side length, use: public Bitmap getResizedBitmap(Bitmap image

问题 Is there a really simple compression technique for strings up to about 255 characters in length (yes, I'm compressing URLs)? I am not concerned with the strength of compression - I am looking for something that performs very well and is quick to implement. I would like something simpler than SharpZipLib: something that can be implemented with a couple of short methods. 回答1: I think the key question here is " Why do you want to compress URLs? " Trying to shorten long urls for the address bar?

问题 I'm trying to load a couple of files into the memory. The files have either of the following 3 formats: string TAB int string TAB float int TAB float. Indeed, they are ngram statics files, in case this helps with the solution. For instance: i_love TAB 10 love_you TAB 12 Currently, the pseudocode of I'm doing right now is loadData(file): data = {} for line in file: first, second = line.split('\t') data[first] = int(second) #or float(second) return data To much of my surprise, while the total