microsoft/lepton_jpeg_rust

Support for legacy files

Opened this issue · 3 comments

Melirius commented

I found out that library does not support legacy Lepton files:

thread 'main' panicked at src\structs\lepton_header.rs:206:29:
attempt to subtract with overflow

It looks like it is possible to get in single-threaded mode.

mcroomp commented

Can you give me a file to test on? All legacy files should work.

Melirius commented

Effectively I cannot find out in the code an equivalent of https://github.com/dropbox/lepton/blob/master/src/lepton/vp8_decoder.cc#L337 onwards, that is reading legacy file header. Then we arrive to lepton_header.rs:206:29 with empty thread_handoff