APNG Assembler

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GUI version:

apngasm_gui.png



Command-line version:

apngasm_cli.png



Related projects:

apngdis: APNG Disassembler

gif2apng: GIF -> APNG converter

apng2gif: APNG -> GIF converter

apngopt: APNG Optimizer



APNG Assembler creates APNG animation from PNG/TGA image sequence.

A number of optimization techniques used to make APNG files as small as possible: inter-frame optimization utilizing alpha-blend and dispose operations, smaller than the full-size subframes, dirty transparency, color type and palette optimizations, and various compression options: zlib, 7zip, Zopfli.

Command-line version is available for all major OSes, as well as GUI version for Windows. C++ source code is available under zlib license


Command line: apngasm output.png frame001.png [options]

Command line: apngasm output.png frame*.png [options]


Options:

1 10: frame delay is 1/10 sec. (default)

-l2: 2 loops (default is 0, forever)

-f: skip the first frame

-kp: keep the original palette, do not optimize it.

-kc: keep the original PNG color type, do not optimize it.

-z0: zlib compression

-z1: 7zip compression (default)

-z2: Zopfli compression

-i##: number of iterations (default -i15) for 7zip and Zopfli




Inter-frame optimization: http://littlesvr.ca/apng/inter-frame.html

GIF vs. APNG vs. WebP: http://littlesvr.ca/apng/gif_apng_webp.html




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