Memory leaks

[Nout1]

I've build this project and it works fine with one critical exception:
When playing a long avi (exceeds 30 minutes), fps drops and the reduction gets worse and worse, untill it stalls. Possibly reason is a memory leak?
So i've put the code into deepseek + it returned some memory leaks. Resolving these leaks, the avi can be a bit longer now (10..20%), but ultimately fps still falls and stalls. It is not a final solution.
I also played with core priority and the amount of memory assigned to each core, with no major improvement.
Has anybody experienced the same problem? Does anybody know a solution?
I'm using a D1 mini esp32 without psram + tft 160x128 st7735 + platform IO.

[echo-lalia]

I have the same issue on my CYD, but the the FPS is steadily dropping from 15 to about 7 after a minute-ish, then to 0 shortly after.

The audio keeps working normally for most of that time, but it starts having issues too a little while after the FPS hits 0.

[echo-lalia]

I found that AVIParser.cpp was reallocating the buffer every frame, because bufferLength is never updated, but that doesn't seem to affect my issue at all.

Additionally, the amount of available memory doesn't consistently decrease over time, and the file playback resumes at normal speed when it restarts. So, I don't think it's a memory leak, but I'm not sure what it is.

[echo-lalia]

I think I figured it out.

After a bit of testing, when the playback slows down like that (on my device, at least), almost all of the time is spent on the fread call inside the AVIParser::getNextChunk method.

Looks like you can increase the internal buffer used for file reading by adding this to the open method:

setvbuf(mFile, NULL, _IOFBF, 1024 * 16 /*Or whatever buffer size you want.*/);

[cgreening]

Ooh - nice find. Can you add a PR for this?