base64

convert base64 to json in javaScript

For example, I have a base64 code like this const base64 = "H4sIAAAAAAAEAO2b0W6CMBSGz6MsXm+JUKi6N9gzLLsw4jYTo0bJbpa9+44Ig0J7kBW0PSENNG2B9vtjw09PfYVvmMAGEjw/QwiPmKdYTmEL66xuAics7eGI5QcI4AmPSXbdAZZZ7Q7bX/InBFlLeYdaf37mFx7bSl2C5ROs8OoNPvHc9x6feOk5BAFR3tsK65O/MQmQEGP+g21VAgFzI8O5hx183Gz0zT5VBrW9SbLwkiTQsEQw9ZQl1NKY54nrNJf51CQS7IgidkQxOyLJjmjGjsjP9ylF5Ot71UQUe/x2NREFzIgkO88g2XkGyc4zSHaeQXrqGUTOVD3r+Xx0ECpXF1rKXaj382OnfMi92dX+h1ViZvAvByUtG+lYS+ta2ikpraX7qLnEcgLveX4530Jhyk+V95cjK/N7//76UEylovXTqUd5t1G9NvUonziq16Ye5UlH9drUo/zvqF6bepTXHtWj1Ztf6W3/q16x6nOdfqGH+l3nj0f9TPoNO3sj9vpRX+Kjfu36Detcivg4X/2G9S789Rv2q63YacJXv2G/27jrZ1avupcqJBQKe9WnWBtqcoss8qGPw9lErfodf1+RRZuolZtENlErN4lsolZuEtlErdwksolTuUlks9PFTSKbnS4uEkmrnS5uEtnsdHGRaE4S2fvG/pldco2LgVe9RAf1xA3UW8Entm6zUdS1CHC26+e7mW/R6as2aiXUjVk/UupXH2f7KNvXw6ed1oRi6xkd5f+heINfmSW/7QgyAAA=" Now I want to convert this to json I have tried to convert this base64 to object But I don't know if it's true or not but…

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Ubuntu – Decode .jpeg image from string

In my JS script I'm receiving string with encoded image.jpeg. The image is created with OpenCV in C++: cv::imencode(".jpeg", rgb_img, jpeg_data); std::string jpeg_string(jpeg_data.begin(), jpeg_data.end()); Then the string is passed through websocket. In JS I have to decode that string and…

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Javascript – Blob generated from base64-encoded png image within FormData instance recognized as application/octet-stream on server-side

Okay so I have a correctly, base64-encoded png image, that I convert into a Blob as such: const match = imgBase64String.match(/^data:image/(w+);base64,/); if (!match) { throw new Error("Failed to decode base64-string."); } const imageSuffix = match[1]; const base64StringWithoutPrefix = imgBase64String.replace( /^data:image/w+;base64,/,…

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HTML5 Video M3U8 Base64

I want to add a base64 encoded M3U8 in HTML5 Video tag how can I do <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> </head> <body> <video width="100%" controls src="data:application/x-mpegURL;base64,..."></video> </body> </html> I want to embed my…

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