Those are dependencies your program requires they would not be uploaded into its source code repository rather downloaded and complied (if necessary) from their own to be available at compile time for cog. The original was released under the GPL as is yours since you took that work as the basis for yours and have released binaries of it. When you release binaries based on the GPL code it states you make the modified source of the work available for others to use if they so wish to. I am not certain if .zip qualifies but it is better than nothing and should be released upon each update to comply with making the source changes available to all who wish to use it.
Cog: Error: this application, or a library it uses, has passed an invalid numeric value (NaN, or not-a-number) to CoreGraphics API and this value is being ignored.Please fix this problem. Cog: CGContextAddCurveToPoint: no current point. Cog: clip: empty path.
Cog: -[FFmpegAudioDecoder open:] (line 56) ERROR OPENING FILE, errcode = -1330794744, error = Protocol not found