general

finish error handling
handle video destroyed w/images outstanding
dbg_scan background image stretched (still...)
profile and weed out obvious oversights
example using SANE to scan symbol(s)

windows port

libzbar-0.dll should be zbar-0.dll

wrappers

build API docs for zbargtk, zbarpygtk
is zbargtk/QZBar BGR4 alpha swapped?
widget config APIs
drag-and-drop for widgets (configurable...)
Perl build support integration?
GTK and Qt perl bindings
C++ global wrappers

symbologies

PDF417
- extract/resolve symbol matrix parameters (NB multiple symbols)
- error detection/correction
- high-level decode
Code 39, i25 optional features (check digit and ASCII escapes)
handle Code 128 function characters (FNC1-4)
Code 128 trailing quiet zone checks

decoder

start/stop/abort and location detail APIs (PDF417, OMR)
more configuration options
- disable for at least UPC-E (maybe UPC-A?)
- Code-39/i25 check digit (after implementation)
- Code-39 full ASCII (after implementation)
- standard symbology identifiers (which standard?)
- set consistency requirements
- set scanner filter params
fix max length check during decode
revisit noise and resolution independence

image scanner

extract and track symbol polygons
- dynamic scan density (PDF417, OMR)
add multi-sample array interface to linear scanner

image formats

fix image data inheritance
de-interlacing
add color support to conversions (also jpeg)
add support for scanline pad throughout
factor conversion redundancy

window

add XShm support
X protocol error handling
Direct2D
API to query used interface (video, window?) (/format?)
simple image manipulations scale(xv?)/mirror
- maintain aspect ratio
more overlay details
- decoded result(?)
- stats

zbarcam/zbarimg

zbarimg multi-frame duplicate suppression
stats/fps at zbarcam exit
decode hook (program/script)? (also zbarimg?)