Getting the Push Stream URL and Playback URL for Tencent Cloud Live in C#

This article documents the practical process of integrating Tencent Cloud live streaming push functionality in a C# environment. Since Tencent Cloud officially provides code examples only in Java and PHP, and the push URL must be generated on the client side, the author successfully reverse-engineered the Java examples to decipher the generation logic of the critical parameter `txTime`, confirming it to be a Unix timestamp counting from January 1, 1970. Subsequently, the author implemented the complete signing algorithm in C#, including calculating the MD5 value, string concatenation, and conversion to hexadecimal format, ultimately generating valid push and playback addresses. The article details the complete code implementation from timestamp conversion and MD5 encryption to final URL construction, resolving the difficulty C# developers face in understanding the signing mechanism due to the lack of official documentation support. It provides a reusable technical solution and code reference for integrating live streaming features in similar scenarios.