iOS Safari iPhone 4s and 5s

[rebotnix]

I debugged libde265.js on my iPhone 4s and was wondering why i can´t see HEVC content, cause it worked fine under iOS with my iPad AIR, both devices were running iOS 7.1.

The safari debugger brings light on this, i added a console.log output to my iOS Safari browser (iPhone 4s):

[Log] 268435456 (libde265.js, line 1085)

RangeError: ArrayBuffer size is not a small enough positive integer. anonyme Funktion) (libde265.js, line 1087)

It seems an error in sizeof the buffer array near (Searched for "Initialize the runtime's memory in libde265.js- cause the debugger doenst show the right line number as my javscript IDE") - i founded it and showed me these lines of code where i add the console.log(TOTAL_MEMORY) to see why we have this size Array error, see:

// Initialize the runtime's memory // check for full engine support (use string 'subarray' to avoid closure compiler confusion) assert(typeof Int32Array !== 'undefined' && typeof Float64Array !== 'undefined' && !!(new Int32Array(1)['subarray']) && !!(new Int32Array(1)['set']), 'JS engine does not provide full typed array support'); console.log(TOTAL_MEMORY); var buffer = new ArrayBuffer(TOTAL_MEMORY);

So TOTAL_MEMORY seems to be 268435456, and that is too high value for the new ArrayBuffer.

I do not know if this is fixable, cause the generated code is done by emscripten i think.

What do you think?

Gary

[fancycode]

The value is set during building (see build.sh, line 17). Could you please check which value works for you? Emscripten supports dynamic allocation, but this decreases performance quite largely.

[fancycode]

@garybruckheimer did you manage to find out which value worked for you?

[rebotnix]

hi,

i tried several types of values/numbers, but all gave me the same error.

Its really a strange issue. I have the same issue on an iPad 2,3 but not on iPad AIR. Same on iPhone 3,4,4s but no issue on 5s. All devices have iOS7 installed.

I have to find another way to debug this. As a registered iOS developer i open a ticket to apple as well, but i received no feedback on this yet. I download the iOS8 beta yesterday and will see if i have the same on this beta OS. If you have any idea what i can try, please let me know.

Currently i´m also debugging an bug under IE Windows, where i have a security cross domain error on "BLOB-creation". As soon as i have light on this, i will report and maybe open another ticket.