qstokkink / apng Goto Github PK

Options should be added for:

• output_file
• num_plays
• delay_num
• delay_den
• dispose_op
• blend_op

Warnings should be used instead (probably).

Right now apng cannot handle png input files with palettes (PLTE chunks). One solution to this would be to either construct a shared palette for all frames. Another solution would be to convert all IDAT chunks for input files with PLTEs to IDATs without palettes.

num_plays, delay_num, delay_den, dispose_op and blend_op should also take vectors which map to the input files/frames, instead of mapping single values to all frames.

Turn this into a CRAN repository compatible package.

Package documentation is pretty chintzy. The exported function(s) should be documented properly. Both in PDF and code.

Right now all of the code is located in one R source file. This should be spread out into multiple files for better readability and maintainability.

Any user input should be validated. For example input file existence. This should be done after #3 has been solved.