Streaming using code built with PlatformIO fails rapidly with: Stream crash - ESP_ERR_HTTPD_RESP_SEND

[TheWolf95]

Hello!

I'm having issues having a reliable stream, since in short times (random, but between 2 to 30 seconds) the stream crashes, ending itself due to ESP_ERR_HTTPD_RESP_SEND. Which, looking to the ESP-IDF wiki, is due to sending an invalid chunk packet, confirmed by Chrome JS console returning ERR_INVALID_CHUNK_ENCODING 200 (OK).
I've been searching around for a solution, but I couldn't make it far. I also tried forcing ESP ignore the invalid packet error changing res into ESP_OK, but I guess once it happens Chrome just closes that stream connection, returning the error from the first if too.

I do not know if this is of any help, but it happens always on the third if in the stream handler method.

Thank you for your amazing work so far and in advance for your assistance!

[easytarget]

Thankyou for the report;

Each frame of the stream is returned in response to a request sent by the browser (that's how MJPEG streams work)
ESP_ERR_HTTPD_RESP_SEND indicates that sending the response failed; that's all the cam knows. Since it has seen a failure it will close the stream, stopping it from doing that will fail anyway because:
The ERR_INVALID_CHUNKED_ENCODING (I assume you mis-typed above) is chrome saying 'i got a invalid response', it will then stop requesting new frames and the stream ends anyway.

It could be a esp bug that causes an invalid frame/chunk to be sent, but nothing showed up specifically on google; and I do not see this happening on my home cameras so I suspect it is something in the network causing regular packet loss.

I'll keep an eye out for it though, again, thanks for the report.

[easytarget]

And... I'm seeing this now. Interesting. Think it is still something network, rather than code related.
Will monitor and reproduce.

[easytarget]

Question: Are you using PlatformIO?

I can reproduce this when I commandline build using platformio; but when I build the same code using the ArduinoIDE the problem disappears.

[Bulduper]

Same issue here when using PlatformIO. The stream frezzes (fails) after a few seconds. I tried with Arduino IDE but I couldn't make the stream run with Arduino IDE at all because of SPIFFS: mount failed, -10025 and error page...

[easytarget]

@Bulduper : With the IDE; double check the partition scheme you selected has SPIFFS and/or lower the x-clock rate. Also make sure you are using the HEAD revision RC1, not one of the older betas (which are more susceptible to this). This is discussed further in the discussion threads.