Can this program run on Esp-IDF environment？

[DanielFujiwara]

I downloaded your file(Micro RTSP) on GitHub recently.And I had some problems during using it.
Here is the problems:
1.Your program is base on Arduino IDE. Can this program run on Esp-IDF environment?
2.Will you write a ESP IDF version in the future?
I sent a email to you,too.
Thank you.

[ameerhazo]

you can use esp idf api in arduino core.

[brainrecall]

I just created an esp-idf example. It can be found here: https://github.com/brainrecall/Micro-RTSP/tree/master/examples/esp-idf

[ameerhazo]

@brainrecall wow cool! I'll take a look into it. Btw this original Micro-RTSP is written in C++ right? The ESP-IDF is in C and if i remember correctly, if you want to use C++ code in ESP-IDF, you would need to change main.c to main.cpp and write extern "C" for app_main() for it to build. This what I had to do back when I used the Arduino code (C++) in the ESP-IDF environment. Great job! Can you tell me how you managed to do it?

[brainrecall]

Thanks! I started with the example from esp-idf/examples/wifi/getting_started/station as the base. The usage of Micro-RTSP I based on the POSIX-compliant code from this libraries test at test/RTSPTestServer.cpp. I did discover a bug in esp-idf where SO_RCVTIMEO with a timeout of zero is actually blocking, so I had to change tcpsocketread() to use select() instead. I then bolted together a few other examples for MQTT and OTA updates. I also pulled in performance updates from the esp-idf/examples/wifi/iperf example which is greatly missing from the Arduino framework.

I should note, though, the example I wrote will only work with my branch. I should give credit to @kadavris who rewrote the RTSP command sequence handling that greatly improves the connection handshake. I made several other changes to his work to improve buffer handling and actually removing the multiple-client support as that was broken (couldn't handle multiple UDP clients, for one). However, running multiple tasks like I do in the esp-idf example allows multiple clients to work easily.