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: Caused by: java.util.zip.ZipException: Not in GZIP format compressed = su.DecodeBase64(base64..., it(compressed) only is bytes which decoded Base64, not GZIP format. you can directly convert the bytes to...
link: Check the related results: https://www.b4x.com/android/forum/pages/results/?query=base64+decode...
link: This code is wrong, it(compressed) only is bytes which decoded Base64, not GZIP format...
link: I think this is better to demonstrate that su.DecodeBase64(base64) is doing the decompressing...

Updated Library https://www.b4x.com/android/forum/threads/b4x-library-base64-encode-decode-image.../android/forum/threads/base64-encode-decode-image-library.31031/ ) "...in attached the library for...
link: How to use this file? It's very simple, as written above: if it's a png it will remain a p...
link: How to use this file? Just download the library and save it in B4A additional libraries then refre...
link: Log(base) ' 'Check if Valid Base64 ' If Base64EncodeDecodeImage.ValidBase64(base...

The attached class is an implementation of a MJPEG over Http decoder. The data is a mix of strings and raw bytes. It is tempting to convert the bytes to a string. However raw bytes do not represent a valid string so you can lose important information during the conversion (which will also slow down the program). Edit: For new projects it is recommended to use BytesBuilder. The following sub is used to search for strings or bytes in the raw bytes directly: Private Sub IndexOfString...

.DecodeBase64(text) Return BytesToString(b, 0, b.Length, "UTF8") End Sub Credits: @Douglas Farias (code isBase64) remember: Convert bitmap to base64 use Base64EncodeDecodeImage from... Sub isBase64(text As String) As Boolean If Regex.IsMatch("^({4})*({4}|{3}=|{2}==)$"... End Sub Sub convertStringToBase64(text As String) As String Private su As StringUtils Private b() As Byte = text.GetBytes("UTF8") Return su.EncodeBase64(b) End Sub Sub...

Here's a library that, for the moment, can perform Base64 encoding and decoding and symmetric algorithm encryption and decryption. Tested symmetric algorithms are DES, Triple DES and AES (Rijndael). As the Java encryption rountines are all byte array oriented you will need my ByteConverter library to run the demo. EDIT :- Version 1.1 posted. Asymmetric algorithms, Signing and MACs now implemented. See post#2 for details....

= DecodeBase64(Result, "RGVjb2RpbmcgQmFzZTY0IHN0cmluZyB3aXRoIEI0UiEhIQ==") Dim bc As ByteConverter... the length of the decoded data Sub DecodeBase64(Result() As Byte, Text() As Byte) As UInt Dim rawlength... + 1 Loop four(i) = GetBase64Index(Text(si)) Next Result(ri) = Bit... Loop Return length End Sub Sub GetBase64Index(u As Int) As Int If u = 43 Then Return 63...

I noticed the other day that there were quite a few questions regarding decoding base64 image stings, so I quickly put together this simple but effective base64 encode/decode images library for...
link: into a picture and after saving it to an ImageView ? ( DecodeToImage (ImageStr As String) As Bitmap )...
link: Thanks Erel, I thought as much..., so that explains it then. 1. When posting a string (using PostSt...
link: You should start a new thread for this. Note that you don't need any library other than StringU...

encoding and decoding . Image file encoding and decoding . Text file encoding and decoding . Base64 encoding and decoding . Base64-Safe encoding and decoding . Convert Base64 to Base64-Safe . Convert Base64-Safe to Base64 . Validates Base64 or Base64-Safe encoding . Character repeater . Others Note...B4XBase64 encoding and decoding algorithms were developed using B4X code only, without external...
link: Free version 1.0 code!!...

(255) As Byte Public b64decoded_len As ULong Add to your code and call the Base64 sub Sub Base64...::_b64decoded_len ); } #End If #if c #include "mbedtls/base64.h" void Base64Decode...
link: I have found the following 2 github pages. The second obviously is for ARM based embeded systems right...
link: Base64, you change it to a sub accepting an argument, you change slightly the C code (b4r_main...
link: it a b4xlib with methods Base64.Encode and Base64.Decode? It's all built in (the mbedtls core...

.decodebase64 check whether it is gzip compression during decoding, and if so, do gzip decompression along the way! (the above English is from translation software) Dim B64 As Base64 Dim su...
link: .Base64").RunMethod("decode", Array(s, 4)) End Sub ...
link: .Base64").RunMethod("decode", Array(s, 4)) End Sub Thank you, Mr. Erel! In addition...
link: ) Dim B64 As Base64 Dim su As StringUtils Dim compress As CompressedStreams Dim a As String...