decoder

问题 Well, hello community. I'm workin' on a CSV decoder in PHP (yeah, I know there's already one, but as a challenge for me, since I'm learning it in my free time). Now the problem: Well, the rows are split up by PHP_EOL . In this line: foreach(explode($sep, $str) as $line) { where sep is the variable which splits up the rows and str the string I wanna decode. But if I wanna split up the columns by a semicolon there might be a situation where a semicolon is content of one column. And as I

问题 I'm trying to read a custom extension from a digital certificate. I know the value is a GeneralString encoded in DER. Is there an easy way to correctly decode it and get a Java String? I tried the following, but 's' includes some of the encoding metadata as junk characters at the start of the string. byte[] ext = cert.getExtensionValue("1.2.3.4"); String s= new String(ext); System.out.println(s); Is there a quick and easy way to do this? Or do I really need to use some full fledged ASN.1

问题 I have a card that produces a H264 stream with a SPS (Sequence Parameter Set) and a PPS (Picture Parameter Set), in that order, directly before each I-Frame. I see that most H264 streams contain a PPS and SPS at the first I-Frame. Is this recommended? Do decoders/muxers typically support multiple PPS and SRS? 回答1: H.264 comes in a variety of stream formats. One variation is called "Annex B". (AUD)(SPS)(PPS)(I-Slice)(PPS)(P-Slice)(PPS)(P-Slice) ... (AUD)(SPS)(PPS)(I-Slice). Typically you see

问题 I want to convert a given flac file to a wav file. Most of the questions on StackOverflow are the opposite of my question. Have anyone an idea how to solve this problem ? I heard something about JavaFlacEncoder link but I could not find a method to convert flac to wave. 回答1: Use flac -d to (from the man page) Decode (the default behavior is to encode) Another option would be the JustFLAC library, again you need to decode from FLAC. WAV is uncompressed audio. 来源： https://stackoverflow.com

问题 I'm going through the article, How to integrate a codec in FFMPEG multimedia framework. According to it, every codec needs to have 3 basic functions to be defined and these functions are assigned to function pointers of the structure AVCodec . The 3 function pointers specified in the above article are: .init -> takes care of allocations and other initializations .close -> freeing the allocated memory and de-initializations .decode -> frame by frame decoding. For the function pointer .decode ,

问题 I have faced a problem, unfortunately, I have not found a correct solution: I need to decode url-slice that is encoded with windows-1251 (cp1251). I know there are theese methods - decodeURI() and decodeURIComponent() , but they work for UTF-8 only (as I have understood). A solution that I found uses deprecated methods escape() and unescape(). For example, there is sequence: %EF%F0%EE%E3%F0%E0%EC%EC%E8%F0%EE%E2%E0%ED%E8%E5 (программирование) The methods decodeURI() and decodeURIComponent()

问题 Below is the error code I received on my Terminal call of "python lastYearArray.py". (I'm on a MacBook Pro running OSX 10.9.5, editing my Python program in jEdit). According to this link: TypeError: expected string or buffer it appears that the function I am using doesn't take lists either. I would just be working with the JSON file instead of converting it, but this particular JSON data has no headers or element tags, such as "fruits: apple, banana, orange"; it only has a long string of

问题 Scenario: I am writing an iOS app to try decode a videoFile.mp4 . I am using AVAssetReaderTrackOutput with AVAssetReader to decode frames from the video file. This works very well. I get each & every frame from videoFile.mp4 basically using the following logic at the core. Code: AVAssetReader * videoFileReader; AVAssetReaderTrackOutput * assetReaderOutput = [videoFileReader.outputs objectAtIndex:0]; CMSampleBufferRef sampleBuffer = [assetReaderOutput copyNextSampleBuffer]; sampleBuffer is the

问题 I want to parse JSON using decodable, but I get an error type mismatch like: Swift.DecodingError.Context(codingPath: [], debugDescription: "Expected to decode Array but found a dictionary instead." My JSON : { "code": 0, "data": { "_id": "string", "title": "string", "images": [ "string" ], "shortDesc": "string", "desc": "string", "price": 0, "discountPrice": 0, "quantity": 0, "category": { "name": "string", "val": "string" }, "brand": { "name": "string", "val": "string" }, "variants": [ {

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . My question is based on ISO8583 Transaction message standard. My problem statement is to develop an app which will decode the ISO8583 message which is provided as a input in HEX format. for ex : my input = 0200B2200000001000000000000000800000201234000000010000011072218012345606A5DFGR021ABCDEFGHIJ 1234567890